GERM Reservoir Database
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GERM Database Search Results        
Reservoir Z Element Value Median SD Low High N Unit Info Reference Source(s)
Amphibolites 78 Pt 6.95         189 ppb Average of 165 subsamples and 24 composites. Gao et al. 1998
Arenaceous Rocks 78 Pt 1.62         121 ppb Average of 110 subsamples and 11 composites. Gao et al. 1998
Arenaceous Rocks 78 Pt 0.59         2754 ppb Average of 2628 subsamples and 126 composites. Gao et al. 1998
CAI Inclusions Allende Meteorite 78 Pt 10   1       ppm Bulk composition of an 111.1mg Ca-Al-rich inclusion from the Allende Meteorite named A37. Analyses performed on A37 were by Instrumental Neutron Activation Analysis, all values given in ppm. This particular analysis performed included all ranges of sections from A37 which therin yielded the best approximation of where particular elements were best located. Bischoff & Palme 1987
Carbonates 78 Pt 0.21         50 ppb Average of 45 subsamples and 5 composites. Gao et al. 1998
Carbonates 78 Pt 0.31         2038 ppb Average of 1922 subsamples and 116 composites. Gao et al. 1998
Central East China Craton 78 Pt 1.41           ppb Compostional estimate of the entire Central East China province. Includes sedimentary carbonates. Gao et al. 1998
Central East China Craton 78 Pt 1.64           ppb Compostional estimate of the entire Central East China province. Average compostion of granulite terrains and calculated on a sedimentary carbonate rock-free basis. Gao et al. 1998
Central East China Craton 78 Pt 1.87           ppb Compostional estimate of the entire Central East China province. Calculated according to 70% intermediate granulite plus 15% mafic granulite plus 15% metapelite from central East China (Appendix 1; for detailed explanation see text). Gao et al. 1998
Central East China Craton 78 Pt 0.85           ppb Compostional estimate of the entire Central East China province. Gao et al. 1998
Central East China Craton 78 Pt 1.5           ppb Compostional estimate of the entire Central East China province. Calculated on a sedimentary carbonate rock-free basis. Gao et al. 1998
Central East China Craton 78 Pt 1.81           ppb Average composition for Central East China. Assuming that the lowermost crust is represented by the average mafic granulite from Archean high-grade terrains in Central East China (Appendix 1). Gao et al. 1998
Central East China Craton 78 Pt 2.87           ppb Compostional estimate of the entire Central East China province. Assuming that the lowermost crust is represented by the average mafic granulite from Archean high-grade terrains in Central East China (Appendix 1). Gao et al. 1998
Central East China Craton 78 Pt 1.62           ppb Compostional estimate of the entire Central East China province. Gao et al. 1998
Central East China Craton 78 Pt 2.96           ppb Compostional estimate of the entire Central East China province. Average composition of granulite terrains. Gao et al. 1998
CI Chondrites 78 Pt 990   73.3     10 ppb Mean C1 chondrite from atomic abundances based on C = 3.788E-3*H*A where C = concentration; H = atomic abundance and A = atomic weight. Values are not normalised to 100% Anders & Grevesse 1989
CI Chondrites 78 Pt 1050           ppb C1 Carbonaceous chondrite major and minor element compositions as given in Palme 1988. These values are given in an effort to accurately represent the C1 chondrites as based on an array of sources and derive a revised model for the composition of the Earth. McDonough & Sun 1995 Palme 1988
CI Chondrites 78 Pt 982   39.28       ppb Composition of the Primitive Mantle of the Earth as based on CI Chondritic major and trace element compositions from Chapter 1.03 Palme & Jones 2004 Treatise of Geochemistry. Palme & O'Neill 2004 Palme & Jones 2004
CI Chondrites 78 Pt 990           ppb C1 Carbonaceous chondrite major and minor element compositions as given in Wasson & Kallemeyn 1988. These values are given in an effort to accurately represent the C1 chondrites as based on an array of sources and derive a revised model for the composition of the Earth. McDonough & Sun 1995 Wasson & Kallemeyn 1988
CI Chondrites 78 Pt 0.99           ppm Abundance of elements in the solar system from Anders & Grevesse 1989 study of CI meteorites. Palme & Jones 2004 Anders & Grevesse 1989
CI Chondrites 78 Pt 0.982   0.03928       ppm Abundance of elements in the solar system based off of Palme & Beer 1993 study of CI meteorites. Palme & Jones 2004 Palme & Beer 1993
Jochum 1996
CI Chondrites 78 Pt 1.67   0.06         CI Meteorite derived solar system abundances of various elements. Palme & Jones 2004
CI Chondrites 78 Pt 1010           ppb Based on measurements on 3 out of 5 carbonaceous chrondrites namely Orgueil, Ivuna and Alais. McDonough & Sun 1995
Continental Crust 78 Pt 0.4           ppb UCC; LCC = from composite sample of 17 European greywackes analysed by ICP-MASS in nickel sulfide extract after Te co-precipitation (Hartmann, 1995). Wedepohl 1995
Continental Crust 78 Pt 1.5           ng/g Recommended composition of the Bulk Continental Crust where the total-crust composition is calculated according to the upper, middle and lower-crust compositions obtained in this study and corresponding weighing factors of 0.317, 0.296 and 0.388. The weighing factors are based on the layer thickness of the global continental crust, recalculated from crustal structure and areal proportion of various tectonic units given by Rudnick and Fountain 1995. Rudnick & Gao 2004 Rudnick & Fountain 1995
Continental Crust 78 Pt 0.4           ng/g Major and trace element compositional estimates of the Bulk Continental Crust given by Wedepohl 1995. Major element oxides are given in wt.% and trace elements in either ng/g or ¿g/g. Rudnick & Gao 2004 Wedepohl 1995
Continental Crust 78 Pt 1.81           ng/g Major and trace element compositional estimates of the Bulk Continental Crust given by Gao et al. 1998a. Major element oxides are given in wt.% and trace elements in either ng/g or ¿g/g. Rudnick & Gao 2004 Gao et al. 1998a
Continental Crust 78 Pt 0.5           ng/g Rudnick & Gao 2004
Core 78 Pt 5.7           ppm Elemental composition of the Earth's core as given in ppm unless stated as wt. %. McDonough 2004
Core 78 Pt 5.7           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Depleted Mantle 78 Pt 6.2   1.674       ppb Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table.  Ir/Pt is the element ratio/constraint used to make this estimate. Salters & Stracke 2004
Diorite 78 Pt 0.61         260 ppb Average of 243 subsamples and 17 composites. Gao et al. 1998
East China Craton 78 Pt 1.79           ppb Compostional estimate of East China. Assuming that the lowermost crust is represented by the average mafic granulite from Archean high-grade terrains in Central East China (Appendix 1). Gao et al. 1998
Felsic Granulites 78 Pt 1.05         137 ppb Average of 116 subsamples and 21 composites. Gao et al. 1998
Felsic Volcanics 78 Pt 0.22         972 ppb Average of 895 subsamples and 77 composites. Gao et al. 1998
Granites 78 Pt 0.41         402 ppb Average of 369 subsamples and 33 composites. Gao et al. 1998
Granites 78 Pt 0.09         1226 ppb Average of 1140 subsamples and 86 composites. Gao et al. 1998
Greywackes 78 Pt 0.4           ppb Total average of group averages from USA, Canada, Australia, Sri Lanka and Germany using an equal statistical weight. Wedepohl 1995
Interior North China Craton 78 Pt 0.97           ppb Compostional estimate of the interior of the North China craton. Includes sedimentary carbonates. Gao et al. 1998
Interior North China Craton 78 Pt 1.02           ppb Compostional estimate of the interior of the North China craton. Calculated on a sedimentary carbonate rock-free basis. Gao et al. 1998
Interior North China Craton 78 Pt 2.7           ppb Compostional estimate of the interior of the North China craton. Average compostion of granulite terrains. Gao et al. 1998
Interior North China Craton 78 Pt 1.4           ppb Compostional estimate of the interior of the North China craton. Average compostion of granulite terrains and calculated on a sedimentary carbonate rock-free basis. Gao et al. 1998
Interior North China Craton 78 Pt 0.66           ppb Compostional estimate of the interior of the North China craton. Gao et al. 1998
Intermediate Granulites 78 Pt 1.81         136 ppb Average of 115 subsamples and 21 composites. Gao et al. 1998
Lower Continental Crust 78 Pt 2.87           ng/g Major and trace element compositional estimates of the lower continental crust as given by Gao et al. 1998a using seismic velocities and granulite data from the North China craton. Major element oxides are given in wt.% and trace elements in either ng/g or ¿g/g. Rudnick & Gao 2004 Gao et al. 1998a
Lower Continental Crust 78 Pt 2.7           ng/g Recommended composition of the Lower Continental crust as given by various sources. Major element oxides are given in wt.% and trace element concentrations are given in either ng/g or ¿g/g. Rudnick & Gao 2004
Mafic Granulites 78 Pt 2.68         128 ppb Average of 93 subsamples and 35 composites. Gao et al. 1998
Mafic Intrusions 78 Pt 1.64         308 ppb Average of 276 subsamples and 32 composites. Gao et al. 1998
Manganese Nodules 78 Pt 0.2           ppm Average concentrations of various elements found in deep sea Manganese nodules.  Sea salt components are subtracted assuming all chloride is of seawater origin. Li 1991 Baturin 1988
Marine Organisms 78 Pt 0.0002           ppm Concentration values of various elements found in marine organisms. Element concentrations are mainly from brown algae data from Bowen 1979, which are also indicative of phytoplankton and zooplankton. Li 1991 Bowen 1979
Hodge et al. 1986
Marine Pelagic Clay 78 Pt 0.005           ppm Average concentrations for various elements enriched in Oceanic Pelagic Clays.  Compared to the element values of Shales, the Pelagic Clays are relatively similar with few exceptions.   All sea salt components are subtracted from the sample analysis assuming all chloride is of seawater origin. Li 1991 Turekian & Wedepohl 1961
Baturin 1988
Mavic Volcanics 78 Pt 1.55         632 ppb Average of 538 subsamples and 49 composites. Gao et al. 1998
Metafelsic Volcanics 78 Pt 0.12         41 ppb Average of 38 subsamples and 3 composites. Gao et al. 1998
Middle Continental Crust 78 Pt 0.85           ng/g Major and Minor element compositional estimates of the Middle Continental crust as given by This Study (Rudnick and Gao 2004). Major element oxides are given in wt.% and trace elements abundances are given in ¿g/g or ng/g. Rudnick & Gao 2004
Middle Continental Crust 78 Pt 0.85           ng/g Major and Minor element compositional estimates of the Middle Continental crust as given by Gao et al. 1998a. Major element oxides are given in wt.% and trace elements abundances are given in ¿g/g or ng/g. Rudnick & Gao 2004 Gao et al. 1998
Nakhla Meteorite 78 Pt 0.5           ppb Mars elemental abundances as given by Nakhla meteorite (nakhlite) as given in Lodders 1988. McSween, Jr. 2004 Lodders 1998
North Qinling Belt in China 78 Pt 1.86           ppb Compostional estimate of the North Qinling orogenic belt. Calculated on a sedimentary carbonate rock-free basis. Gao et al. 1998
North Qinling Belt in China 78 Pt 1.1           ppb Compostional estimate of the Northern Qinling orogenic belt. Average compostion of granulite terrains and calculated on a sedimentary carbonate rock-free basis. Gao et al. 1998
North Qinling Belt in China 78 Pt 0.96           ppb Compostional estimate of the North Qinling orogenic belt. The middle crust of the North Qinling belt is assumed to consist of the underthrusted South Qinling middle crust (see text for explanation). Gao et al. 1998
North Qinling Belt in China 78 Pt 1.66           ppb Compostional estimate of the North Qinling orogenic belt. Includes sedimentary carbonates. Gao et al. 1998
North Qinling Belt in China 78 Pt 0.38           ppb Compostional estimate of the North Qinling orogenic belt. Average composition of granulite terrains. Gao et al. 1998
Orgueil Chondrite 78 Pt 953         6 ppb Solar system abundances of major and minor elements as based on studies from the Orgueil Meteorite. Abundances in the Orgueil meteorite are adequately close to the C1 chondrite mean except for REE, in which case other studies will yield more preferable results Anders & Ebihara 1982
Orgueil Chondrite 78 Pt 973         9 ppb Orgueil meteorite measurements. Anders & Grevesse 1989
Pelites 78 Pt 1.32         69 ppb Average of 60 subsamples and 9 composites. Gao et al. 1998
Pelites 78 Pt 0.66         1341 ppb Average of 1238 subsamples and 103 composites. Gao et al. 1998
Primitive Mantle 78 Pt 6.6   0.792       ppb Elemental composition of the Primitive Mantle of the Earth as given from this study and other various sources. These elemental values are compared to those of CI Chondrites given by Palme & Jones 2004 Treatise of Geochemistry. Comments given by the authors in reference to these values: HSE, Pt/Ir, CI-chondrite Palme & O'Neill 2004
Primitive Mantle 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
Seawater 78 Pt 0.002           ng/kg Average of water column. Goldberg et al. 1986
Seawater 78 Pt 0.27             Elemental average concentrations of the deep Atlantic and deep Pacific waters summarized by Whitfield & Turner 1987.  Li 1991 Whitfield & Turner 1987
Shergotty Meteorite 78 Pt 0.16           ppb Mars elemental abundances as given by Shergotty meteorite (basalitc shergottite) as given in Lodders 1988. Mars elemental abundances as given by Shergotty meteorite, which is a basalitc shergottite, as given in Lodders 1988. McSween, Jr. 2004 Lodders 1998
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           ppm Composition of the Silicate Earth as given by elemental abundances in ppm (and wt%). McDonough 2004
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
Solar Photosphere 78 Pt 1.8   0.3         Elemental solar photospheric abundances as given by various references. Palme & Jones 2004 Grevesse & Sauval 1998
Solar Photosphere 78 Pt 1.8   0.3         Abundances in Solar Photosphere; in original table: log N(H) = 12.00 Anders & Grevesse 1989
Solar System 78 Pt 1.37   0.137     9   Anders & Ebihara 1982
Solar System 78 Pt 1.41             Anders & Ebihara 1982 Cameron 1982
Solar System 78 Pt 1.34   0.09916     10   Solar atomic abundances based on an average of C1 chondrites. Values are not normalised to 100% but they are relative to 10E6 Silica atoms. Anders & Grevesse 1989
Solid Earth 78 Pt 1.9           µg/g Compostioinal models for the bulk Earth, core and silicate Earth are modified after McDonough & Sun (1995). McDonough 1998
Solid Earth 78 Pt 1.9           ppm Bulk elemental composition of the Solid Earth with concentrations given in ppm (and wt% where noted). McDonough 2004
South Margin of North China Craton 78 Pt 1.34           ppb Compostional estimate of the south margin of the North China craton. Gao et al. 1998
South Margin of North China Craton 78 Pt 1.56           ppb Compostional estimate of the south margin of the North China craton. Average composition of granulite terrains. Gao et al. 1998
South Margin of North China Craton 78 Pt 1.18           ppb Compostional estimate of the south margin of the North China craton. Average compostion of granulite terrains and calculated on a sedimentary carbonate rock-free basis. Gao et al. 1998
South Margin of North China Craton 78 Pt 0.86           ppb Compostional estimate of the south margin of the North China craton. Includes sedimentary carbonates. Gao et al. 1998
South Margin of North China Craton 78 Pt 0.91           ppb Compostional estimate of the south margin of the North China craton. Calculated on a sedimentary carbonate rock-free basis. Gao et al. 1998
South Qinling Belt in China 78 Pt 1.33           ppb Compostional estimate of the Southern Qinling orogenic belt. Average compostion of granulite terrains and calculated on a sedimentary carbonate rock-free basis. Gao et al. 1998
South Qinling Belt in China 78 Pt 0.84           ppb Compostional estimate of the South Qinling orogenic belt. Includes sedimentary carbonates. Gao et al. 1998
South Qinling Belt in China 78 Pt 0.9           ppb Compostional estimate of the South Qinling orogenic belt. Calculated on a sedimentary carbonate rock-free basis. Gao et al. 1998
South Qinling Belt in China 78 Pt 0.96           ppb Compostional estimate of the South Qinling orogenic belt. Gao et al. 1998
Spinel Peridotites 78 Pt 7         1 ppb McDonough 1990
Tonalites-Trondhjemites-Granodiorites 78 Pt 0.13         641 ppb Average of 596 subsamples and 45 composites. Gao et al. 1998
Tonalites-Trondhjemites-Granodiorites 78 Pt 2.06         553 ppb Average of 502 subsamples and 51 composites. Gao et al. 1998
Upper Continental Crust 78 Pt 0.5           ng/g Recommended composition of the Upper Continental Crust as given by various sources which are listed in Table 1 and 2 of Rudnick and Gao 2004 as well as in the text. Rudnick & Gao 2004
Upper Continental Crust 78 Pt 0.51           ng/g Estimates of trace element compositions of the Upper Continental Crust. These values are taken from Peucker-Ehrenbrink and Jahn 2001 and represent estimates derived from sedimentary and loess data. Rudnick & Gao 2004 Peucker-Eherenbrink & Jahn 2001
Upper Continental Crust 78 Pt 0.5   0.5       ng/g Recommended composition of the Upper Continental Crust as given by various sources which are listed in Table 1 and 2 of Rudnick and Gao 2004 as well as in the text. Rudnick & Gao 2004 see text
Yangtze Craton 78 Pt 1.8           ppb Compostional estimate of the Yangtze craton. Includes sedimentary carbonates. Gao et al. 1998
Yangtze Craton 78 Pt 1.92           ppb Compostional estimate of the Yangtze craton. Calculated on a sedimentary carbonate rock-free basis. Gao et al. 1998
Yangtze Craton 78 Pt 0.84           ppb Compostional estimate of the Yangtze craton. Gao et al. 1998
Yangtze Craton 78 Pt 1.91           ppb Compostional estimate of the Yangtze craton. Average compostion of granulite terrains and calculated on a sedimentary carbonate rock-free basis. Gao et al. 1998
Yangtze Craton 78 Pt 3.35           ppb Compostional estimate of the Yangtze craton. Average composition of granulite terrains. Gao et al. 1998
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