GERM Reservoir Database
Development and Maintenance by the EarthRef.org Database Team

GERM Database Search Results        
Reservoir Z Element Value Median SD Low High N Unit Info Reference Source(s)
Silicate Earth   143Nd/144Nd 0.512638             Present day Nd parent/daughter ratios from isotopic signatures in relation to ratios from abyssal peridotite depletion trends. Workman & Hart 2005
Silicate Earth   143Nd/144Nd 0.512634             Isotopic compositions of Depleted Mantle (DM) according to Neodymium isotopes in the Bulk Silicate Earth.  The composition of the Bulk Silicate Earth (BSE) has been estimated by McDonough & Sun 1995.  Salters & Stracke 2004
Silicate Earth   176Hf/177Hf 0.28276             Bulk Silicate Earth Hafnium ratios as measured from MORB mantle. Workman & Hart 2005
Silicate Earth   176Hf/177Hf 0.282843             Isotopic compositions of Depleted Mantle (DM) according to Hafnium isotopes in the Bulk Silicate Earth.  The composition of the Bulk Silicate Earth (BSE) has been estimated by McDonough & Sun 1995.  For these Hafnium values the average for C-Chondrites (from Patchett et al. 2004) were used.  This results in a BSE composition that falls within the Hf-Nd array on an isotope correlation diagram.  Salters & Stracke 2004
Silicate Earth   206Pb/204Pb 17.511             Present day Pb parent/daughter ratios from isotopic signatures in relation to ratios from abyssal peridotite depletion trends. Workman & Hart 2005
Silicate Earth   207Pb/204Pb 15.361             Present day Pb parent/daughter ratios from isotopic signatures in relation to ratios from abyssal peridotite depletion trends. Workman & Hart 2005
Silicate Earth   208Pb/204Pb 17.7             Isotopic compositions of Depleted Mantle (DM) according to Lead isotopes in the Bulk Silicate Earth.  The composition of the Bulk Silicate Earth (BSE) has been estimated by McDonough & Sun 1995.  Salters & Stracke 2004
Silicate Earth   87Sr/86Sr 0.7045             Present day Sr parent/daughter ratios from isotopic signatures in relation to ratios from abyssal peridotite depletion trends. Workman & Hart 2005
Silicate Earth   87Sr/86Sr 0.7045             Isotopic compositions of Depleted Mantle (DM) according to Strontium isotopes in the Bulk Silicate Earth.  The composition of the Bulk Silicate Earth (BSE) has been estimated by McDonough & Sun 1995.  Salters & Stracke 2004
Silicate Earth 47 Ag 8           ppb Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 47 Ag 0.008           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 47 Ag 0.008           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 13 Al 2.35   0.235       wt% Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 13 Al 4.45           wt%ox Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. McDonough & Sun 1995
Silicate Earth 13 Al 2.35           wt% Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 13 Al 3.65           wt%ox Bulk silicate Earth model based on C1 Carbonaceous Chondrite values of major element oxides as taken from Taylor and McLennan 1985. McDonough & Sun 1995 Taylor & McLennan 1985
Silicate Earth 13 Al 4.4           wt%ox Pyrolite model of the silicate Earth based on the MORB-harzburgite model according to Green et al. 1979. Compositions are given in weight percent per silicate oxide. McDonough & Sun 1995 Green et al. 1979
Silicate Earth 13 Al 3.97           wt%ox Pyrolite model of the silicate Earth based on the least depleted ultramafic xenolith model according to Jagoutz et al. 1979. Compositions are given in weight percent per silicate oxide. McDonough & Sun 1995 Jagoutz et al. 1979
Silicate Earth 13 Al 1.93           wt% Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Taylor & McLennan 1985
Silicate Earth 13 Al 2.35           wt% Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 13 Al 2.36           wt% Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Sun 1982
Sun & McDonough 1989
McDonough & Frey 1989
Silicate Earth 13 Al 2.22           wt% Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Jagoutz et al. 1979
Wanke et al. 1984
Silicate Earth 13 Al 2.15           wt% Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Hofmann 1988
Silicate Earth 33 As 0.05           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 33 As 0.05           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 33 As 0.05           ppm Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 79 Au 1           ppb Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 79 Au 0.001           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 79 Au 0.001           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 5 B 0.3           ppm Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 5 B 0.3           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 5 B 0.3           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 56 Ba 6600   660       ppb Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 56 Ba 6.6           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 56 Ba 5.1           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Taylor & McLennan 1985
Silicate Earth 56 Ba 6.049           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Hofmann 1988
Silicate Earth 56 Ba 5.6           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Jagoutz et al. 1979
Wanke et al. 1984
Silicate Earth 56 Ba 6.99           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Sun 1982
Sun & McDonough 1989
McDonough & Frey 1989
Silicate Earth 56 Ba 6.6           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 4 Be 0.068   0.0136       ppm Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 4 Be 0.07           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 4 Be 0.07           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 83 Bi 0.003           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 83 Bi 0.003           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 83 Bi 2.5   0.75       ppb Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 35 Br 0.05           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 35 Br 0.05           ppm Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 35 Br 0.05           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 6 C 120           ppm Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 6 C 120           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 6 C 120           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 6 C 8.3e+21             Global inventory for crustal volatiles as measured in moles. Porcelli & Turekian 2013 Hunt 1972
Ronov & Yaroshevskiy 1976
Silicate Earth 20 Ca 2.53           wt% Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Jagoutz et al. 1979
Wanke et al. 1984
Silicate Earth 20 Ca 2.07           wt% Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Taylor & McLennan 1985
Silicate Earth 20 Ca 2.57           wt% Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Sun 1982
Sun & McDonough 1989
McDonough & Frey 1989
Silicate Earth 20 Ca 3.4           wt%ox Pyrolite model of the silicate Earth based on the MORB-harzburgite model according to Green et al. 1979. Compositions are given in weight percent per silicate oxide. McDonough & Sun 1995 Green et al. 1979
Silicate Earth 20 Ca 2.53           wt% Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 20 Ca 2.9           wt%ox Bulk silicate Earth model based on C1 Carbonaceous Chondrite values of major element oxides as taken from Taylor and McLennan 1985. McDonough & Sun 1995 Taylor & McLennan 1985
Silicate Earth 20 Ca 2.53   0.253       wt% Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 20 Ca 2.3           wt% Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Hofmann 1988
Silicate Earth 20 Ca 3.5           wt%ox Pyrolite model of the silicate Earth based on the least depleted ultramafic xenolith model according to Jagoutz et al. 1979. Compositions are given in weight percent per silicate oxide. McDonough & Sun 1995 Jagoutz et al. 1979
Silicate Earth 20 Ca 3.55           wt%ox Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. McDonough & Sun 1995
Silicate Earth 20 Ca 2.53           wt% Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 48 Cd 0.04           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 48 Cd 40   12       ppb Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 48 Cd 0.04           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 58 Ce 1.73           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Jagoutz et al. 1979
Wanke et al. 1984
Silicate Earth 58 Ce 1.68           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 58 Ce 1.68           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 58 Ce 1.833           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Sun 1982
Sun & McDonough 1989
McDonough & Frey 1989
Silicate Earth 58 Ce 1.6011           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Hofmann 1988
Silicate Earth 58 Ce 1.436           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Taylor & McLennan 1985
Silicate Earth 58 Ce 1675   167.5       ppb Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 17 Cl 17           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 17 Cl 17           ppm Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 17 Cl 17           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 27 Co 105           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 27 Co 105           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 27 Co 105   10.5       ppm Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 24 Cr 0.384           wt%ox Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. McDonough & Sun 1995
Silicate Earth 24 Cr 2625   393.75       ppm Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 24 Cr 0.44           wt%ox Bulk silicate Earth model based on C1 Carbonaceous Chondrite values of major element oxides as taken from Taylor and McLennan 1985. McDonough & Sun 1995 Taylor & McLennan 1985
Silicate Earth 24 Cr 2625           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 24 Cr 2625           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 24 Cr 0.45           wt%ox Pyrolite model of the silicate Earth based on the MORB-harzburgite model according to Green et al. 1979. Compositions are given in weight percent per silicate oxide. McDonough & Sun 1995 Green et al. 1979
Silicate Earth 24 Cr 0.46           wt%ox Pyrolite model of the silicate Earth based on the least depleted ultramafic xenolith model according to Jagoutz et al. 1979. Compositions are given in weight percent per silicate oxide. McDonough & Sun 1995 Jagoutz et al. 1979
Silicate Earth   Cr/Mn 2.5             Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts.and basalts. McDonough & Sun 1995
Silicate Earth   Cr/V 32             Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts.and basalts. McDonough & Sun 1995
Silicate Earth 55 Cs 0.018           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Taylor & McLennan 1985
Silicate Earth 55 Cs 0.0268           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Hofmann 1988
Silicate Earth 55 Cs 0.009           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Jagoutz et al. 1979
Wanke et al. 1984
Silicate Earth 55 Cs 0.021           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 55 Cs 21   8.4       ppb Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 55 Cs 0.023           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Sun 1982
Sun & McDonough 1989
McDonough & Frey 1989
Silicate Earth 55 Cs 0.021           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 29 Cu 30   4.5       ppm Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 29 Cu 30           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 29 Cu 30           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 66 Dy 674   67.4       ppb Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 66 Dy 0.67           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 66 Dy 0.737           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Sun 1982
Sun & McDonough 1989
McDonough & Frey 1989
Silicate Earth 66 Dy 0.67           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 66 Dy 0.6378           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Hofmann 1988
Silicate Earth 66 Dy 0.572           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Taylor & McLennan 1985
Silicate Earth 66 Dy 0.766           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Jagoutz et al. 1979
Wanke et al. 1984
Silicate Earth   e182W 1             Predicted 182W isotopic compositions for Lunar initial, present-day lunar mantle, and present-day Silicate Earth given the parameters of a Bulk Solar system initial 182W value ranging from -5.0 to -3.5 and that a giant impact occured at 50 million years. Halliday 2004 Walter et al. 2000
Kleine et al. 2002
Newsom 1990
Halliday 2000
Silicate Earth   e182W 0.3             Predicted 182W isotopic compositions for Lunar initial, present-day lunar mantle, and present-day Silicate Earth given the parameters of a Bulk Solar system initial 182W value ranging from -5.0 to -3.5 and that a giant impact occured at 40 million years. Halliday 2004 Walter et al. 2000
Kleine et al. 2002
Newsom 1990
Halliday 2000
Silicate Earth   e182W -0.1             Predicted 182W isotopic compositions for Lunar initial, present-day lunar mantle, and present-day Silicate Earth given the parameters of a Bulk Solar system initial 182W value ranging from -5.0 to -3.5 and that a giant impact occured at 40 million years. Halliday 2004 Walter et al. 2000
Kleine et al. 2002
Newsom 1990
Halliday 2000
Silicate Earth   e182W -0.4             Predicted 182W isotopic compositions for Lunar initial, present-day lunar mantle, and present-day Silicate Earth given the parameters of a Bulk Solar system initial 182W value ranging from -5.0 to -3.5 and that a giant impact occured at 30 million years. Halliday 2004 Walter et al. 2000
Kleine et al. 2002
Newsom 1990
Halliday 2000
Silicate Earth   e182W -1.5             Predicted 182W isotopic compositions for Lunar initial, present-day lunar mantle, and present-day Silicate Earth given the parameters of a Bulk Solar system initial 182W value ranging from -5.0 to -3.5 and that a giant impact occured at 70 million years. Halliday 2004 Walter et al. 2000
Kleine et al. 2002
Newsom 1990
Halliday 2000
Silicate Earth   e182W -1.2             Predicted 182W isotopic compositions for Lunar initial, present-day lunar mantle, and present-day Silicate Earth given the parameters of a Bulk Solar system initial 182W value ranging from -5.0 to -3.5 and that a giant impact occured at 60 million years. Halliday 2004 Walter et al. 2000
Kleine et al. 2002
Newsom 1990
Halliday 2000
Silicate Earth   e182W -1.6             Predicted 182W isotopic compositions for Lunar initial, present-day lunar mantle, and present-day Silicate Earth given the parameters of a Bulk Solar system initial 182W value ranging from -5.0 to -3.5 and that a giant impact occured at 70 million years. Halliday 2004 Walter et al. 2000
Kleine et al. 2002
Newsom 1990
Halliday 2000
Silicate Earth   e182W -0.3             Predicted 182W isotopic compositions for Lunar initial, present-day lunar mantle, and present-day Silicate Earth given the parameters of a Bulk Solar system initial 182W value ranging from -5.0 to -3.5 and that a giant impact occured at 45 million years. Halliday 2004 Walter et al. 2000
Kleine et al. 2002
Newsom 1990
Halliday 2000
Silicate Earth   e182W 1.7             Predicted 182W isotopic compositions for Lunar initial, present-day lunar mantle, and present-day Silicate Earth given the parameters of a Bulk Solar system initial 182W value ranging from -5.0 to -3.5 and that a giant impact occured at 70 million years. Halliday 2004 Walter et al. 2000
Kleine et al. 2002
Newsom 1990
Halliday 2000
Silicate Earth   e182W -1.3             Predicted 182W isotopic compositions for Lunar initial, present-day lunar mantle, and present-day Silicate Earth given the parameters of a Bulk Solar system initial 182W value ranging from -5.0 to -3.5 and that a giant impact occured at 60 million years. Halliday 2004 Walter et al. 2000
Kleine et al. 2002
Newsom 1990
Halliday 2000
Silicate Earth   e182W 1.4             Predicted 182W isotopic compositions for Lunar initial, present-day lunar mantle, and present-day Silicate Earth given the parameters of a Bulk Solar system initial 182W value ranging from -5.0 to -3.5 and that a giant impact occured at 60 million years. Halliday 2004 Walter et al. 2000
Kleine et al. 2002
Newsom 1990
Halliday 2000
Silicate Earth   e182W -0.8             Predicted 182W isotopic compositions for Lunar initial, present-day lunar mantle, and present-day Silicate Earth given the parameters of a Bulk Solar system initial 182W value ranging from -5.0 to -3.5 and that a giant impact occured at 50 million years. Halliday 2004 Walter et al. 2000
Kleine et al. 2002
Newsom 1990
Halliday 2000
Silicate Earth   e182W -0.7             Predicted 182W isotopic compositions for Lunar initial, present-day lunar mantle, and present-day Silicate Earth given the parameters of a Bulk Solar system initial 182W value ranging from -5.0 to -3.5 and that a giant impact occured at 30 million years. Halliday 2004 Walter et al. 2000
Kleine et al. 2002
Newsom 1990
Halliday 2000
Silicate Earth   e182W -0.5             Predicted 182W isotopic compositions for Lunar initial, present-day lunar mantle, and present-day Silicate Earth given the parameters of a Bulk Solar system initial 182W value ranging from -5.0 to -3.5 and that a giant impact occured at 40 million years. Halliday 2004 Walter et al. 2000
Kleine et al. 2002
Newsom 1990
Halliday 2000
Silicate Earth   e182W -0.9             Predicted 182W isotopic compositions for Lunar initial, present-day lunar mantle, and present-day Silicate Earth given the parameters of a Bulk Solar system initial 182W value ranging from -5.0 to -3.5 and that a giant impact occured at 45 million years. Halliday 2004 Walter et al. 2000
Kleine et al. 2002
Newsom 1990
Halliday 2000
Silicate Earth   e182W -1.2             Predicted 182W isotopic compositions for Lunar initial, present-day lunar mantle, and present-day Silicate Earth given the parameters of a Bulk Solar system initial 182W value ranging from -5.0 to -3.5 and that a giant impact occured at 50 million years. Halliday 2004 Walter et al. 2000
Kleine et al. 2002
Newsom 1990
Halliday 2000
Silicate Earth   e182W -1.6             Predicted 182W isotopic compositions for Lunar initial, present-day lunar mantle, and present-day Silicate Earth given the parameters of a Bulk Solar system initial 182W value ranging from -5.0 to -3.5 and that a giant impact occured at 60 million years. Halliday 2004 Walter et al. 2000
Kleine et al. 2002
Newsom 1990
Halliday 2000
Silicate Earth   e182W -1.7             Predicted 182W isotopic compositions for Lunar initial, present-day lunar mantle, and present-day Silicate Earth given the parameters of a Bulk Solar system initial 182W value ranging from -5.0 to -3.5 and that a giant impact occured at 70 million years. Halliday 2004 Walter et al. 2000
Kleine et al. 2002
Newsom 1990
Halliday 2000
Silicate Earth   e182W 0.4             Predicted 182W isotopic compositions for Lunar initial, present-day lunar mantle, and present-day Silicate Earth given the parameters of a Bulk Solar system initial 182W value ranging from -5.0 to -3.5 and that a giant impact occured at 30 million years. Halliday 2004 Walter et al. 2000
Kleine et al. 2002
Newsom 1990
Halliday 2000
Silicate Earth   e182W 0.8             Predicted 182W isotopic compositions for Lunar initial, present-day lunar mantle, and present-day Silicate Earth given the parameters of a Bulk Solar system initial 182W value ranging from -5.0 to -3.5 and that a giant impact occured at 40 million years. Halliday 2004 Walter et al. 2000
Kleine et al. 2002
Newsom 1990
Halliday 2000
Silicate Earth   e182W -0.6             Predicted 182W isotopic compositions for Lunar initial, present-day lunar mantle, and present-day Silicate Earth given the parameters of a Bulk Solar system initial 182W value ranging from -5.0 to -3.5 and that a giant impact occured at 50 million years. Halliday 2004 Walter et al. 2000
Kleine et al. 2002
Newsom 1990
Halliday 2000
Silicate Earth   e182W -0.6             Predicted 182W isotopic compositions for Lunar initial, present-day lunar mantle, and present-day Silicate Earth given the parameters of a Bulk Solar system initial 182W value ranging from -5.0 to -3.5 and that a giant impact occured at 45 million years. Halliday 2004 Walter et al. 2000
Kleine et al. 2002
Newsom 1990
Halliday 2000
Silicate Earth 68 Er 0.347           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Taylor & McLennan 1985
Silicate Earth 68 Er 0.4167           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Hofmann 1988
Silicate Earth 68 Er 0.46           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Jagoutz et al. 1979
Wanke et al. 1984
Silicate Earth 68 Er 0.479           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Sun 1982
Sun & McDonough 1989
McDonough & Frey 1989
Silicate Earth 68 Er 0.44           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 68 Er 0.44           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 68 Er 438   43.8       ppb Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 63 Eu 0.1456           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Hofmann 1988
Silicate Earth 63 Eu 0.188           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Jagoutz et al. 1979
Wanke et al. 1984
Silicate Earth 63 Eu 0.168           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Sun 1982
Sun & McDonough 1989
McDonough & Frey 1989
Silicate Earth 63 Eu 0.15           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 63 Eu 154   15.4       ppb Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 63 Eu 0.15           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 63 Eu 0.131           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Taylor & McLennan 1985
Silicate Earth 9 F 25           ppm Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 9 F 15           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 9 F 15           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 26 Fe 6.26   0.626       wt% Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 26 Fe 8.05           wt%ox Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. McDonough & Sun 1995
Silicate Earth 26 Fe 8           wt%ox Bulk silicate Earth model based on C1 Carbonaceous Chondrite values of major element oxides as taken from Taylor and McLennan 1985. McDonough & Sun 1995 Taylor & McLennan 1985
Silicate Earth 26 Fe 7.82           wt%ox Pyrolite model of the silicate Earth based on the MORB-harzburgite model according to Green et al. 1979. Compositions are given in weight percent per silicate oxide. McDonough & Sun 1995 Green et al. 1979
Silicate Earth 26 Fe 6.26           wt% Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 26 Fe 6.26           wt% Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 26 Fe 7.82           wt%ox Pyrolite model of the silicate Earth based on the least depleted ultramafic xenolith model according to Jagoutz et al. 1979. Compositions are given in weight percent per silicate oxide. McDonough & Sun 1995 Jagoutz et al. 1979
Silicate Earth   Fe/Al 2.7             Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts.and basalts. McDonough & Sun 1995
Silicate Earth   Fe/Cr 23.8             Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts.and basalts. McDonough & Sun 1995
Silicate Earth   Fe/Ni 31.9             Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts.and basalts. McDonough & Sun 1995
Silicate Earth 31 Ga 4           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 31 Ga 4           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 31 Ga 4   0.4       ppm Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 64 Gd 0.54           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 64 Gd 544   54.4       ppb Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 64 Gd 0.595           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Sun 1982
Sun & McDonough 1989
McDonough & Frey 1989
Silicate Earth 64 Gd 0.459           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Taylor & McLennan 1985
Silicate Earth 64 Gd 0.5128           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Hofmann 1988
Silicate Earth 64 Gd 0.54           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 64 Gd 0.74           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Jagoutz et al. 1979
Wanke et al. 1984
Silicate Earth 32 Ge 1.1           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 32 Ge 1.1   0.165       ppm Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 32 Ge 1.1           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 1 H 100           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 1 H 100           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 72 Hf 283   28.3       ppb Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 72 Hf 0.28           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 72 Hf 0.27           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Taylor & McLennan 1985
Silicate Earth 72 Hf 0.2676           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Hofmann 1988
Silicate Earth 72 Hf 0.28           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Jagoutz et al. 1979
Wanke et al. 1984
Silicate Earth 72 Hf 0.309           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Sun 1982
Sun & McDonough 1989
McDonough & Frey 1989
Silicate Earth 72 Hf 0.28           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 80 Hg 0.01           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 80 Hg 10           ppb Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 80 Hg 0.01           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 67 Ho 0.163           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Sun 1982
Sun & McDonough 1989
McDonough & Frey 1989
Silicate Earth 67 Ho 149   14.9       ppb Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 67 Ho 0.15           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 67 Ho 0.128           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Taylor & McLennan 1985
Silicate Earth 67 Ho 0.181           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Jagoutz et al. 1979
Wanke et al. 1984
Silicate Earth 67 Ho 0.15           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 67 Ho 0.1423           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Hofmann 1988
Silicate Earth 53 I 10           ppb Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 53 I 0.01           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 53 I 0.01           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 49 In 0.01           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 49 In 0.01           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 49 In 11   4.4       ppb Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 77 Ir 0.003           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 77 Ir 3.2   0.96       ppb Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 77 Ir 0.003           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 19 K 240   48       ppm Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 19 K 0.029           wt%ox Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. McDonough & Sun 1995
Silicate Earth 19 K 240           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 19 K 240           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Sun 1982
Sun & McDonough 1989
McDonough & Frey 1989
Silicate Earth 19 K 231           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Jagoutz et al. 1979
Wanke et al. 1984
Silicate Earth 19 K 258.2           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Hofmann 1988
Silicate Earth 19 K 180           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Taylor & McLennan 1985
Silicate Earth 19 K 0.031           wt%ox Pyrolite model of the silicate Earth based on the least depleted ultramafic xenolith model according to Jagoutz et al. 1979. Compositions are given in weight percent per silicate oxide. McDonough & Sun 1995 Jagoutz et al. 1979
Silicate Earth 19 K 0.003           wt%ox Pyrolite model of the silicate Earth based on the MORB-harzburgite model according to Green et al. 1979. Compositions are given in weight percent per silicate oxide. McDonough & Sun 1995 Green et al. 1979
Silicate Earth 19 K 0.022           wt%ox Bulk silicate Earth model based on C1 Carbonaceous Chondrite values of major element oxides as taken from Taylor and McLennan 1985. McDonough & Sun 1995 Taylor & McLennan 1985
Silicate Earth 19 K 240           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 57 La 648   64.8       ppb Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 57 La 0.52           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Jagoutz et al. 1979
Wanke et al. 1984
Silicate Earth 57 La 0.65           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 57 La 0.551           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Taylor & McLennan 1985
Silicate Earth 57 La 0.6139           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Hofmann 1988
Silicate Earth 57 La 0.708           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Sun 1982
Sun & McDonough 1989
McDonough & Frey 1989
Silicate Earth 57 La 0.65           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 3 Li 1.6           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 3 Li 1.6           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 3 Li 1.6   0.48       ppm Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 71 Lu 0.0637           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Hofmann 1988
Silicate Earth 71 Lu 67.5   6.75       ppb Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 71 Lu 0.068           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 71 Lu 0.074           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Jagoutz et al. 1979
Wanke et al. 1984
Silicate Earth 71 Lu 0.068           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 71 Lu 0.0737           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Sun 1982
Sun & McDonough 1989
McDonough & Frey 1989
Silicate Earth 71 Lu 0.057           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Taylor & McLennan 1985
Silicate Earth   Lu/Hf 0.239             Lu/Hf ratio as calculated by Workman & Hart 2005 using MORBs Workman & Hart 2005
Silicate Earth 12 Mg 38.3           wt%ox Pyrolite model of the silicate Earth based on the least depleted ultramafic xenolith model according to Jagoutz et al. 1979. Compositions are given in weight percent per silicate oxide. McDonough & Sun 1995 Jagoutz et al. 1979
Silicate Earth 12 Mg 22.8   2.28       wt% Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 12 Mg 38.8           wt%ox Pyrolite model of the silicate Earth based on the MORB-harzburgite model according to Green et al. 1979. Compositions are given in weight percent per silicate oxide. McDonough & Sun 1995 Green et al. 1979
Silicate Earth 12 Mg 22.8           wt% Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 12 Mg 37.8           wt%ox Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. McDonough & Sun 1995
Silicate Earth 12 Mg 35.15           wt%ox Bulk silicate Earth model based on C1 Carbonaceous Chondrite values of major element oxides as taken from Taylor and McLennan 1985. McDonough & Sun 1995 Taylor & McLennan 1985
Silicate Earth 12 Mg 22.8           wt% Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth   Mg/Al 9.7             Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts.and basalts. McDonough & Sun 1995
Silicate Earth 25 Mn 0.11           wt%ox Pyrolite model of the silicate Earth based on the MORB-harzburgite model according to Green et al. 1979. Compositions are given in weight percent per silicate oxide. McDonough & Sun 1995 Green et al. 1979
Silicate Earth 25 Mn 0.13           wt%ox Pyrolite model of the silicate Earth based on the least depleted ultramafic xenolith model according to Jagoutz et al. 1979. Compositions are given in weight percent per silicate oxide. McDonough & Sun 1995 Jagoutz et al. 1979
Silicate Earth 25 Mn 0.135           wt%ox Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. McDonough & Sun 1995
Silicate Earth 25 Mn 1045   104.5       ppm Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 25 Mn 1045           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 25 Mn 1045           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 25 Mn 0.13           wt%ox Bulk silicate Earth model based on C1 Carbonaceous Chondrite values of major element oxides as taken from Taylor and McLennan 1985. McDonough & Sun 1995 Taylor & McLennan 1985
Silicate Earth 42 Mo 0.05           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 42 Mo 50   20       ppb Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 42 Mo 0.05           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 7 N 2           ppm Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 7 N 2           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 7 N 2           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 7 N 4e+19             Global inventory for crustal volatiles as measured in moles. Porcelli & Turekian 2012 Marty & Dauphas 2003
Silicate Earth 11 Na 0.27           wt% Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 11 Na 0.34           wt%ox Bulk silicate Earth model based on C1 Carbonaceous Chondrite values of major element oxides as taken from Taylor and McLennan 1985. McDonough & Sun 1995 Taylor & McLennan 1985
Silicate Earth 11 Na 0.4           wt%ox Pyrolite model of the silicate Earth based on the MORB-harzburgite model according to Green et al. 1979. Compositions are given in weight percent per silicate oxide. McDonough & Sun 1995 Green et al. 1979
Silicate Earth 11 Na 0.33           wt%ox Pyrolite model of the silicate Earth based on the least depleted ultramafic xenolith model according to Jagoutz et al. 1979. Compositions are given in weight percent per silicate oxide. McDonough & Sun 1995 Jagoutz et al. 1979
Silicate Earth 11 Na 0.27           wt% Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 11 Na 0.36           wt%ox Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. McDonough & Sun 1995
Silicate Earth 11 Na 2670   400.5       ppm Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 41 Nb 0.56           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Taylor & McLennan 1985
Silicate Earth 41 Nb 0.66           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 41 Nb 0.713           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Sun 1982
Sun & McDonough 1989
McDonough & Frey 1989
Silicate Earth 41 Nb 0.66           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 41 Nb 658   98.7       ppb Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 41 Nb 0.6175           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Hofmann 1988
Silicate Earth 60 Nd 1250   125       ppb Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 60 Nd 1.25           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 60 Nd 1.366           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Sun 1982
Sun & McDonough 1989
McDonough & Frey 1989
Silicate Earth 60 Nd 1.43           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Jagoutz et al. 1979
Wanke et al. 1984
Silicate Earth 60 Nd 1.1892           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Hofmann 1988
Silicate Earth 60 Nd 1.067           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Taylor & McLennan 1985
Silicate Earth 60 Nd 1.25           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 28 Ni 1960   196       ppm Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 28 Ni 1960           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 28 Ni 0.25           wt%ox Bulk silicate Earth model based on C1 Carbonaceous Chondrite values of major element oxides as taken from Taylor and McLennan 1985. McDonough & Sun 1995 Taylor & McLennan 1985
Silicate Earth 28 Ni 0.25           wt%ox Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. McDonough & Sun 1995
Silicate Earth 28 Ni 1960           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 28 Ni 0.27           wt%ox Pyrolite model of the silicate Earth based on the least depleted ultramafic xenolith model according to Jagoutz et al. 1979. Compositions are given in weight percent per silicate oxide. McDonough & Sun 1995 Jagoutz et al. 1979
Silicate Earth 28 Ni 0.26           wt%ox Pyrolite model of the silicate Earth based on the MORB-harzburgite model according to Green et al. 1979. Compositions are given in weight percent per silicate oxide. McDonough & Sun 1995 Green et al. 1979
Silicate Earth   Ni/Co 18.7             Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts.and basalts. McDonough & Sun 1995
Silicate Earth   Ni/P 22             Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts.and basalts. McDonough & Sun 1995
Silicate Earth 8 O 44           wt% Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 8 O 44           wt% Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 76 Os 3.4   1.02       ppb Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 76 Os 0.003           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 76 Os 0.003           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 15 P 90   13.5       ppm Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 15 P 0.021           wt%ox Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. McDonough & Sun 1995
Silicate Earth 15 P 90           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 15 P 90           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 82 Pb 0.15           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 82 Pb 150   30       ppb Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 82 Pb 0.15           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 46 Pd 3.9   3.12       ppb Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 46 Pd 0.004           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 46 Pd 0.004           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 59 Pr 254   25.4       ppb Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 59 Pr 0.25           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 59 Pr 0.206           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Taylor & McLennan 1985
Silicate Earth 59 Pr 0.25           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 59 Pr 0.278           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Sun 1982
Sun & McDonough 1989
McDonough & Frey 1989
Silicate Earth 59 Pr 0.2419           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Hofmann 1988
Silicate Earth 78 Pt 0.007           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 78 Pt 7.1   2.13       ppb Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 78 Pt 0.007           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 37 Rb 0.5353           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Hofmann 1988
Silicate Earth 37 Rb 0.55           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Taylor & McLennan 1985
Silicate Earth 37 Rb 0.6   0.18       ppm Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 37 Rb 0.74           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Jagoutz et al. 1979
Wanke et al. 1984
Silicate Earth 37 Rb 0.6           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 37 Rb 0.635           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Sun 1982
Sun & McDonough 1989
McDonough & Frey 1989
Silicate Earth 37 Rb 0.6           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth   Rb/Cs 31             Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Taylor & McLennan 1985
Silicate Earth   Rb/Cs 20             Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Hofmann 1988
Silicate Earth   Rb/Cs 81             Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Jagoutz et al. 1979
Wanke et al. 1984
Silicate Earth   Rb/Cs 28             Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Sun 1982
Sun & McDonough 1989
McDonough & Frey 1989
Silicate Earth   Rb/Sr 0.0307             Present-day parent/daughter ratios, calculated with a continuous depletion model starting 3 Ga. Workman & Hart 2005
Silicate Earth 75 Re 0.28   0.084       ppb Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 75 Re 0.0003           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 75 Re 0.0003           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 45 Rh 0.001           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 45 Rh 0.9   0.36       ppb Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 45 Rh 0.001           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 44 Ru 0.005           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 44 Ru 5   1.5       ppb Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 44 Ru 0.005           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 16 S 250   50       ppm Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 16 S 250           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 16 S 250           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 51 Sb 0.006           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 51 Sb 0.006           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 51 Sb 5.5   2.75       ppb Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 21 Sc 17           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Jagoutz et al. 1979
Wanke et al. 1984
Silicate Earth 21 Sc 16           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 21 Sc 13           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Taylor & McLennan 1985
Silicate Earth 21 Sc 14.88           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Hofmann 1988
Silicate Earth 21 Sc 17.3           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Sun 1982
Sun & McDonough 1989
McDonough & Frey 1989
Silicate Earth 21 Sc 16           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 21 Sc 16.2   1.62       ppm Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 34 Se 0.075   0.0525       ppm Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 34 Se 0.075           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 34 Se 0.075           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 14 Si 45           wt%ox Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. McDonough & Sun 1995
Silicate Earth 14 Si 21           wt% Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 14 Si 21           wt% Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 14 Si 49.9           wt%ox Bulk silicate Earth model based on C1 Carbonaceous Chondrite values of major element oxides as taken from Taylor and McLennan 1985. McDonough & Sun 1995 Taylor & McLennan 1985
Silicate Earth 14 Si 45           wt%ox Pyrolite model of the silicate Earth based on the MORB-harzburgite model according to Green et al. 1979. Compositions are given in weight percent per silicate oxide. McDonough & Sun 1995 Green et al. 1979
Silicate Earth 14 Si 45.16           wt%ox Pyrolite model of the silicate Earth based on the least depleted ultramafic xenolith model according to Jagoutz et al. 1979. Compositions are given in weight percent per silicate oxide. McDonough & Sun 1995 Jagoutz et al. 1979
Silicate Earth 14 Si 21   2.1       wt% Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 62 Sm 0.52           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Jagoutz et al. 1979
Wanke et al. 1984
Silicate Earth 62 Sm 0.41           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 62 Sm 0.444           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Sun 1982
Sun & McDonough 1989
McDonough & Frey 1989
Silicate Earth 62 Sm 0.41           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 62 Sm 0.3865           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Hofmann 1988
Silicate Earth 62 Sm 406   40.6       ppb Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 62 Sm 0.347           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Taylor & McLennan 1985
Silicate Earth   Sm/Nd 0.325             Sm/Nd ratio as calculated by Workman & Hart 2005 using MORBs Workman & Hart 2005
Silicate Earth 50 Sn 130   39       ppb Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 50 Sn 0.13           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 50 Sn 0.13           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 38 Sr 19.9   1.99       ppm Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 38 Sr 17.8           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Taylor & McLennan 1985
Silicate Earth 38 Sr 27.7           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Jagoutz et al. 1979
Wanke et al. 1984
Silicate Earth 38 Sr 21.1           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Sun 1982
Sun & McDonough 1989
McDonough & Frey 1989
Silicate Earth 38 Sr 20           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 38 Sr 18.21           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Hofmann 1988
Silicate Earth 38 Sr 20           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 73 Ta 0.037           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 73 Ta 0.04           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Taylor & McLennan 1985
Silicate Earth 73 Ta 0.0351           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Hofmann 1988
Silicate Earth 73 Ta 37   5.6       ppb Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 73 Ta 0.038           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Jagoutz et al. 1979
Wanke et al. 1984
Silicate Earth 73 Ta 0.041           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Sun 1982
Sun & McDonough 1989
McDonough & Frey 1989
Silicate Earth 73 Ta 0.037           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 65 Tb 99   9.9       ppb Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 65 Tb 0.1           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 65 Tb 0.087           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Taylor & McLennan 1985
Silicate Earth 65 Tb 0.094           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Hofmann 1988
Silicate Earth 65 Tb 0.126           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Jagoutz et al. 1979
Wanke et al. 1984
Silicate Earth 65 Tb 0.108           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Sun 1982
Sun & McDonough 1989
McDonough & Frey 1989
Silicate Earth 65 Tb 0.1           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 52 Te 12           ppb Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 52 Te 0.012           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 52 Te 0.012           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 90 Th 79.5   11.9       ppb Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 90 Th 0.08           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 90 Th 0.08           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 90 Th 0.0813           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Hofmann 1988
Silicate Earth 90 Th 0.084           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Sun 1982
Sun & McDonough 1989
McDonough & Frey 1989
Silicate Earth 90 Th 0.064           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Taylor & McLennan 1985
Silicate Earth   Th/U 3.9             Th/U ratios taken from U-series disequilibrium studies on MORBs. Workman & Hart 2005 Lundstrom et al. 1999
Sims et al. 2002
Sims et al. 2003
Silicate Earth 22 Ti 960           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Taylor & McLennan 1985
Silicate Earth 22 Ti 1085           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Hofmann 1988
Silicate Earth 22 Ti 0.004           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 22 Ti 1350           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Jagoutz et al. 1979
Wanke et al. 1984
Silicate Earth 22 Ti 0.201           wt%ox Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. McDonough & Sun 1995
Silicate Earth 22 Ti 1200           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 22 Ti 1280           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Sun 1982
Sun & McDonough 1989
McDonough & Frey 1989
Silicate Earth 22 Ti 1200           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 22 Ti 1205   120.5       ppm Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 22 Ti 0.16           wt%ox Bulk silicate Earth model based on C1 Carbonaceous Chondrite values of major element oxides as taken from Taylor and McLennan 1985. McDonough & Sun 1995 Taylor & McLennan 1985
Silicate Earth 22 Ti 0.17           wt%ox Pyrolite model of the silicate Earth based on the MORB-harzburgite model according to Green et al. 1979. Compositions are given in weight percent per silicate oxide. McDonough & Sun 1995 Green et al. 1979
Silicate Earth 22 Ti 0.217           wt%ox Pyrolite model of the silicate Earth based on the least depleted ultramafic xenolith model according to Jagoutz et al. 1979. Compositions are given in weight percent per silicate oxide. McDonough & Sun 1995 Jagoutz et al. 1979
Silicate Earth 81 Tl 3.5   1.4       ppb Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 81 Tl 0.004           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 69 Tm 0.068           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 69 Tm 0.074           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Sun 1982
Sun & McDonough 1989
McDonough & Frey 1989
Silicate Earth 69 Tm 0.068           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 69 Tm 0.0643           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Hofmann 1988
Silicate Earth 69 Tm 68   6.8       ppb Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 69 Tm 0.054           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Taylor & McLennan 1985
Silicate Earth 92 U 20.3   4.1       ppb Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 92 U 0.02           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 92 U 0.021           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Sun 1982
Sun & McDonough 1989
McDonough & Frey 1989
Silicate Earth 92 U 0.029           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Jagoutz et al. 1979
Wanke et al. 1984
Silicate Earth 92 U 0.0203           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Hofmann 1988
Silicate Earth 92 U 0.018           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Taylor & McLennan 1985
Silicate Earth 92 U 0.02           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth   U/Pb 0.13             U/Pb ratio as calculated by Workman & Hart 2005 using MORBs Workman & Hart 2005
Silicate Earth 23 V 82   12.3       ppm Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 23 V 82           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 23 V 82           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 74 W 29           ppb Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 74 W 0.029           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 74 W 0.029           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 39 Y 4.3   0.43       ppm Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 39 Y 4.3           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 39 Y 4.55           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Sun 1982
Sun & McDonough 1989
McDonough & Frey 1989
Silicate Earth 39 Y 3.94           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Hofmann 1988
Silicate Earth 39 Y 3.4           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Taylor & McLennan 1985
Silicate Earth 39 Y 4.3           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 70 Yb 441   44.1       ppb Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 70 Yb 0.44           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 70 Yb 0.481           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Sun 1982
Sun & McDonough 1989
McDonough & Frey 1989
Silicate Earth 70 Yb 0.44           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 70 Yb 0.4144           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Hofmann 1988
Silicate Earth 70 Yb 0.372           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Taylor & McLennan 1985
Silicate Earth 70 Yb 0.49           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Jagoutz et al. 1979
Wanke et al. 1984
Silicate Earth 30 Zn 55           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 30 Zn 55   8.25       ppm Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 30 Zn 55           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 40 Zr 9.714           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Hofmann 1988
Silicate Earth 40 Zr 8.3           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Taylor & McLennan 1985
Silicate Earth 40 Zr 10.5           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
Silicate Earth 40 Zr 10.5           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Silicate Earth 40 Zr 10.5   1.05       ppm Pyrolite model for the silicate Earth composition based on peridotites, komatiites and basalts. Error estimate is subjective. McDonough & Sun 1995
Silicate Earth 40 Zr 11.2           ppm Abundances of refractory lithophile elements along with K, Rb and Cs for models of the Bulk Silicate Earth. Data taken from various sources that agree Earth experienced some depletion of semi-volatile to volatile elements in relation to refractory lithophile elements during accretion. McDonough et al. 1992 Sun 1982
Sun & McDonough 1989
McDonough & Frey 1989
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