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)
Acapulcoite Primitive Achondrites 12 Mg 153.8             Mittlefehldt 2004 Yanai & Kojima 1991
Zipfel et al. 1995
Active Continental Rifts 12 Mg 4           wt%ox Rudnick & Fountain 1995
Active Continental Rifts 12 Mg 6           wt%ox Rudnick & Fountain 1995
Ademellites 12 Mg 1.14         113 wt%ox Le Maitre 1976
AII Fracture Zone Basalts 12 Mg 56.66             Hart et al. 1999 Johnson & Dick 1992
AII Fracture Zone Basalts 12 Mg 7.1           wt%ox Hart et al. 1999 Johnson & Dick 1992
Alaska Trench 12 Mg 2.87           wt%ox Plank & Langmuir 1998
Aleutian Basalts 12 Mg 9.22         66 wt% Kelemen et al. 2004
Aleutian Basalts   Mg# 64.96         66   Kelemen et al. 2004
Aleutian Trench 12 Mg 2.71           wt%ox Plank & Langmuir 1998
ALH 77005 Meteorite 12 Mg 17   0.8         McSween, Jr. 2004 Lodders 1998
ALH 84001 Meteorite 12 Mg 15.1   0.5         McSween, Jr. 2004 Lodders 1998
ALH 84025 Brachinite 12 Mg 184             Mittlefehldt 2004 Warren & Kallemeyn 1989a
ALHA 77257 Urelite 12 Mg 239.1             Mittlefehldt 2004 Jarosewich 1990
Warren & Kallemeyn 1992
Spitz & Boynton 1991
ALHA 81101 Urelite 12 Mg 215             Mittlefehldt 2004 Warren & Kallemeyn 1992
Spitz & Boynton 1991
ALHA77081 Acapulcoite 12 Mg 157             Mittlefehldt 2004 Schultz et al. 1982
Allende Meteorite 12 Mg 24.63           wt%ox Martin & Mason 1974
Amazon River Particulates 12 Mg 11200           µg/g Martin & Meybeck 1979
Amphibolites 12 Mg 6.68         189 wt%ox Gao et al. 1998
Andaman Trench 12 Mg 1.96           wt%ox Plank & Langmuir 1998
Andean Andesites 12 Mg 3.4           wt%ox Weaver & Tarney 1984 Bailey 1981
Andes Basalt 12 Mg 8.28         56 wt% Kelemen et al. 2004
Andes Basalt   Mg# 64.12         56   Kelemen et al. 2004
Andesites 12 Mg 3.5           wt%ox Condie 1993
Andesites 12 Mg 3.7           wt%ox Condie 1993
Andesites 12 Mg 3.3           wt%ox Condie 1993
Andesites 12 Mg 3.4           wt%ox Condie 1993
Andesites 12 Mg 4.6           wt%ox Condie 1993
Andesites 12 Mg 4.5           wt%ox Condie 1993
Andesites 12 Mg 3.9           wt%ox Condie 1993
Andesites 12 Mg 4.66         50 wt%ox Plank & Langmuir 1998 Plank & Langmuir 1988
Andesites 12 Mg 5.65         47 wt% Kelemen et al. 2004
Andesites 12 Mg 3.33         2203 wt%ox Le Maitre 1976
Andesites   Mg# 65.62         47   Kelemen et al. 2004
Angrite Angra Dos Reis 12 Mg 65.1             Mittlefehldt 2004 Mittlefehldt & Lindstrom 1990
Angrite LEW 87051 12 Mg 117             Mittlefehldt 2004 Mittlefehldt & Lindstrom 1990
Anorthosites 12 Mg 2.12         97 wt%ox Le Maitre 1976
Archean Amphibolites 12 Mg 1.4           wt%ox Weaver & Tarney 1984 Weaver & Tarney 1981
Archean Canadian Shield 12 Mg 1.38           wt%ox Shaw et al. 1986 Cameron et al. 1979
Archean Canadian Shield 12 Mg 5.2           wt%ox Shaw et al. 1986 Taylor & McLennan 1981
Archean Canadian Shield 12 Mg 2.3           wt%ox Shaw et al. 1986 Eade & Fahrig 1971
Archean Canadian Shield 12 Mg 2.2           wt%ox Shaw et al. 1986 Goodwin 1978
Archean Lower Crust 12 Mg 3.4           wt%ox Shaw et al. 1986 Weaver & Tarney 1984
Archean Terrains 12 Mg 3.1           wt%ox Shaw et al. 1986 Rogers 1978
Archean Terrains 12 Mg 4.9           wt%ox Rudnick & Fountain 1995
Archean Terrains 12 Mg 3.5           wt%ox Shaw et al. 1986 Shaw et al. 1967
Archean Terrains 12 Mg 2.83           wt% Taylor & McLennan 1995
Archean Terrains 12 Mg 3.56           wt% Taylor & McLennan 1995
Arenaceous Rocks 12 Mg 1.38         2754 wt%ox Gao et al. 1998
Arenaceous Rocks 12 Mg 2.01         121 wt%ox Gao et al. 1998
Ashy Clay 12 Mg 4.39         4 wt%ox Plank & Langmuir 1998
Aubres Aubrite 12 Mg 232.7             Mittlefehldt 2004 Easton 1985
Wolf et al. 1983
Australian Granite 12 Mg 1.24         704 wt% Kemp & Hawkesworth 2004 Chappell & White 1992
Australian Granite 12 Mg 0.12         6 wt% Kemp & Hawkesworth 2004 Turner et al. 1992
Australian Granite 12 Mg 0.4           wt% Kemp & Hawkesworth 2004 Collins et al. 1982
Australian Granite 12 Mg 1.38         1074 wt% Kemp & Hawkesworth 2004 Wormald & Price 1988
Australian Granite 12 Mg 1.29         8 wt% Kemp & Hawkesworth 2004 Whalen 1985
Australian Granite 12 Mg 0.17         13 wt% Kemp & Hawkesworth 2004 Inger & Harris 1993
Australian Granite   Mg# 41.9         704   Kemp & Hawkesworth 2004 Chappell & White 1992
Australian Granite   Mg# 25.2         13   Kemp & Hawkesworth 2004 Inger & Harris 1993
Australian Granite   Mg# 44.1         1074   Kemp & Hawkesworth 2004 Wormald & Price 1988
Australian Granite   Mg# 19.5             Kemp & Hawkesworth 2004 Collins et al. 1982
Australian Granite   Mg# 9.7         6   Kemp & Hawkesworth 2004 Turner et al. 1992
Australian Granite   Mg# 34.8         8   Kemp & Hawkesworth 2004 Whalen 1985
Barea Mesosiderite 12 Mg 91.7             Mittlefehldt 2004 Mason & Jarosewich 1973
Mittlefehldt in press
Basaltic Glass at ODP/DSDP Site 504 12 Mg 8.2   0.34     51 wt%ox Alt et al. 1986
Basalts 12 Mg 6.7           wt%ox Condie 1993
Basalts 12 Mg 6.6           wt%ox Condie 1993
Basalts 12 Mg 6.9           wt%ox Condie 1993
Basalts 12 Mg 6.2         5 wt% Farmer 2004 Wilson et al. 1997
Basalts 12 Mg 7.8         7 wt% Farmer 2004 Price et al. 1997
Basalts 12 Mg 8.2         6 wt% Farmer 2004 Marzoli et al. 2000
Basalts 12 Mg 8.9         8 wt% Farmer 2004 Marzoli et al. 2000
Basalts 12 Mg 7.7         12 wt% Farmer 2004 Dungan et al. 1986
Basalts 12 Mg 7.7         6 wt% Farmer 2004 Turner et al. 1996a
Basalts 12 Mg 7.7         16 wt% Farmer 2004 Rogers et al. 1998
Basalts 12 Mg 9.4           wt%ox Condie 1993
Basalts 12 Mg 6           wt%ox Condie 1993
Basalts 12 Mg 6.5           wt%ox Condie 1993
Basalts 12 Mg 7.6           wt%ox Condie 1993
Basalts 12 Mg 6.73         3156 wt%ox Le Maitre 1976
Basalts 12 Mg 7.2         3 wt% Farmer 2004 Wilson et al. 1997
Basalts 12 Mg 15.3         10 wt% Farmer 2004 Chung et al. 2001
Basalts 12 Mg 6.8         7 wt% Farmer 2004 Conticelli et al. 1997
Basalts 12 Mg 9.1         16 wt% Farmer 2004 Jung & Hoernes 2000
Basalts 12 Mg 6.6         3 wt% Farmer 2004 Chung et al. 1995
Basalts 12 Mg 11.9         27 wt% Farmer 2004 Farmer et al. 2002
Basalts 12 Mg 8.1         13 wt% Farmer 2004 Robert et al. 1992
Basalts 12 Mg 7.2         44 wt% Farmer 2004 Baker et al. 1997
Basalts 12 Mg 8         23 wt% Farmer 2004 Paslick et al. 1995
Basalts 12 Mg 8.1         9 wt% Farmer 2004 Hoang & Flower 1998
Basalts 12 Mg 11.3         8 wt% Farmer 2004 Zhang & O'Reilly 1997
Basalts 12 Mg 8.7         4 wt% Farmer 2004 Chung 1999
Basanites 12 Mg 8.54         138 wt%ox Le Maitre 1976
Basic Precambrian Granulites 12 Mg 7.79         25 wt%ox Shaw et al. 1986
Binda Eucrite 12 Mg 107             Mittlefehldt 2004 Barrat et al. 2000
McCarthy et al. 1973
Boninites 12 Mg 10.64         348 wt% Kelemen et al. 2004
Boninites   Mg# 69.5         348   Kelemen et al. 2004
Brown Clay 12 Mg 3.26         29 wt%ox Plank & Langmuir 1998
Brown Clay 12 Mg 3.36         4 wt%ox Plank & Langmuir 1998
Ca-Al-rich Inclusions 12 Mg 11.82           wt%ox Bischoff & Keil 1983 McSween 1977
Ca-Al-rich Inclusions 12 Mg 10           wt%ox Bischoff & Keil 1983
Carbonaceous Chondrites   Al/Mg 0.105   0.01         McDonough & Sun 1995
Carbonaceous Chondrites   Fe/Mg 1.68   0.12         McDonough & Sun 1995
Carbonaceous Chondrites   Mg/Cr 39   2         McDonough & Sun 1995
Carbonaceous Chondrites   Mg/Si 0.91   0.04         McDonough & Sun 1995
Carbonaceous Chondrites   Mg/V 0.157   0.009         McDonough & Sun 1995
Carbonate 12 Mg 1.31         13 wt%ox Plank & Langmuir 1998
Carbonate Turbidites 12 Mg 2.9         87 wt%ox Plank & Langmuir 1998
Carbonates 12 Mg 14.89         50 wt%ox Gao et al. 1998
Carbonates 12 Mg 10.58         2038 wt%ox Gao et al. 1998
Carbonates 12 Mg 12.79   0.26     162 wt%ox Mirota & Veizer 1994
Cascade Basalt 12 Mg 9.12         60 wt% Kelemen et al. 2004
Cascade Basalt   Mg# 67.17         60   Kelemen et al. 2004
Cascadia Trench 12 Mg 2.96           wt%ox Plank & Langmuir 1998
Central America Trench 12 Mg 1.52           wt%ox Plank & Langmuir 1998
Central American Basalts 12 Mg 10.63         78 wt% Kelemen et al. 2004
Central American Basalts   Mg# 64.49         78   Kelemen et al. 2004
Central East China Craton 12 Mg 3.86           wt%ox Gao et al. 1998
Central East China Craton 12 Mg 3.6           wt%ox Gao et al. 1998
Central East China Craton 12 Mg 5.05           wt%ox Gao et al. 1998
Central East China Craton 12 Mg 4.33           wt%ox Gao et al. 1998
Central East China Craton 12 Mg 3.02           wt%ox Gao et al. 1998
Central East China Craton 12 Mg 3.73           wt%ox Gao et al. 1998
Central East China Craton 12 Mg 3.67           wt%ox Gao et al. 1998
Central East China Craton 12 Mg 3.5           wt%ox Gao et al. 1998
Central East China Craton 12 Mg 2.52           wt%ox Gao et al. 1998
Central East China Craton 12 Mg 3.42           wt%ox Gao et al. 1998
Central East China Craton 12 Mg 3.38           wt%ox Gao et al. 1998
Chassigny Achondrite 12 Mg 30.2   0.6       wt%ox Boynton et al. 1976
Chassigny Meteorite 12 Mg 19.2   0.5         McSween, Jr. 2004 Lodders 1998
Chaunskij Mesosiderite 12 Mg 48.4             Mittlefehldt 2004 Mittlefehldt in press
Petaev et al. 2000
Chert 12 Mg 0.86           wt%ox Elliot et al. 1997
Chert 12 Mg 0.9         4 wt%ox Plank & Langmuir 1998
Chert 12 Mg 0.7         4 wt%ox Plank & Langmuir 1998
Chondritic Porous Interplanetary Dust Particles 12 Mg 1.015             Bradley 2004 Schramm et al. 1989
Chondritic Smooth Interplanetary Dust Particles 12 Mg 0.824             Bradley 2004 Schramm et al. 1989
Chondrule Silicates   Si/Mg 0.03             Grossman & Wasson 1985
Chondrules 12 Mg 16.6           wt%ox Bischoff & Keil 1983
CI Chondrites   Al/Mg 0.0891             McDonough & Sun 1995
CI Chondrites   Fe/Mg 1.88             McDonough & Sun 1995
CI Chondrites 12 Mg 9.89           wt% Palme & Jones 2004 Anders & Grevesse 1989
CI Chondrites 12 Mg 9.61   0.2883       wt% Palme & Jones 2004 Palme & Beer 1993
CI Chondrites 12 Mg 7.56   0.01         Palme & Jones 2004
CI Chondrites 12 Mg 9.61   0.2883       wt% Palme & O'Neill 2004 Palme & Jones 2004
CI Chondrites 12 Mg 9.89   0.376     15 wt% Anders & Grevesse 1989
CI Chondrites 12 Mg 0.92             Bradley 2004 McSween & Richardson 1977
CI Chondrites 12 Mg 9.4           wt% McDonough & Sun 1995 Palme 1988
CI Chondrites 12 Mg 1.04             Bradley 2004 Palme & Jones 2004
CI Chondrites 12 Mg 9.7           wt% McDonough & Sun 1995 Wasson & Kallemeyn 1988
CI Chondrites 12 Mg 53.6             McDonough & Frey 1989 Palme et al. 1981
Anders & Ebihara 1982
Beer et al. 1984
Jochum et al. 1986
CI Chondrites 12 Mg 15.17           wt%ox McDonough & Frey 1989 Palme et al. 1981
Anders & Ebihara 1982
Beer et al. 1984
Jochum et al. 1986
CI Chondrites 12 Mg 9.65           wt% McDonough & Sun 1995
CI Chondrites   Mg/Cr 36.4             McDonough & Sun 1995
CI Chondrites   Mg/Si 0.906             McDonough & Sun 1995
CI Chondrites   Mg/V 0.172             McDonough & Sun 1995
CI Chondrites   MgO/Ni 14.5             McDonough 1990 McDonough & Frey 1989
Sun & McDonough 1989
Sun 1982
CI Chondrites   Si/Mg 0.014             Grossman & Wasson 1985 Kallemeyn & Wasson 1984
Clastic Turbidites 12 Mg 2.96         28 wt%ox Plank & Langmuir 1998
CM Chondrites 12 Mg 0.957             Bradley 2004 McSween & Richardson 1977
CM Chondrites 12 Mg 1.023             Bradley 2004 Jarosewich 1990
CO Chondrites 12 Mg 16.7   1.5     36 wt% Scott & Krot 2004 Brearley 1993
Greshake 1997
CO Chondrites 12 Mg 10.1   3     6 wt% Scott & Krot 2004 Brearley 1993
Greshake 1997
CO Chondrites 12 Mg 8.3   1.7     8 wt% Scott & Krot 2004 Brearley 1993
Greshake 1997
CO Chondrites 12 Mg 15.8   0.8     106 wt% Scott & Krot 2004 Brearley 1993
Greshake 1997
Coarse Interplanetary Dust Particles 12 Mg 1.203             Bradley 2004 Schramm et al. 1989
Colombia Trench 12 Mg 0.55           wt%ox Plank & Langmuir 1998
Colorado River Particulates 12 Mg 10400           µg/g Martin & Meybeck 1979
Comet Halley 12 Mg -7.58             Anders & Grevesse 1989 Delsemme 1988
Comet Halley 12 Mg -7.58             Anders & Grevesse 1989 Jessberger et al. 1988
Congo River Particulates 12 Mg 5800           µg/g Martin & Meybeck 1979
Continental Arc Andesite 12 Mg 9.48         497 wt% Kelemen et al. 2004
Continental Arc Andesite 12 Mg 6.56         142 wt% Kelemen et al. 2004
Continental Arc Andesite   Mg# 65.18         142   Kelemen et al. 2004
Continental Arc Andesite   Mg# 65.24         497   Kelemen et al. 2004
Continental Arc Xenoliths 12 Mg 41.14 40.72 2.8     28   Pearson et al. 2004
Continental Arc Xenoliths   Mg# 0.895 0.898 0.018     28   Pearson et al. 2004
Continental Arc Xenoliths   Mg/Si 1.2 1.17 0.1     28   Pearson et al. 2004
Continental Arcs 12 Mg 5.1           wt%ox Rudnick & Fountain 1995
Continental Arcs 12 Mg 7.7           wt%ox Rudnick & Fountain 1995
Continental Crust 12 Mg 3.8           wt% Rudnick & Gao 2004 Wedepohl 1995
Continental Crust 12 Mg 4.5           wt% Rudnick & Gao 2004 Rudnick & Fountain 1995
Continental Crust 12 Mg 3.9           wt% Rudnick & Gao 2004 Taylor 1964
Continental Crust 12 Mg 5.3           wt% Rudnick & Gao 2004 Taylor & McLennan 1985
Taylor & McLennan 1995
Continental Crust 12 Mg 3.1           wt% Rudnick & Gao 2004 Ronov & Yaroshevsky 1967
Continental Crust 12 Mg 3.2           wt% Rudnick & Gao 2004 Holland & Lambert 1972
Continental Crust 12 Mg 4.66           wt% Rudnick & Gao 2004
Continental Crust 12 Mg 2.8           wt% Rudnick & Gao 2004 Smithson 1978
Continental Crust 12 Mg 2.8           wt% Rudnick & Gao 2004 Weaver & Tarney 1984
Continental Crust 12 Mg 3.2           wt% Rudnick & Gao 2004 Shaw et al. 1986
Continental Crust 12 Mg 4.7           wt% Rudnick & Gao 2004 Rudnick & Fountain 1995
Continental Crust 12 Mg 3.5           wt% Rudnick & Gao 2004 Gao et al. 1998a
Continental Crust 12 Mg 3.1           wt% Rudnick & Gao 2004 Christensen & Mooney 1995
Continental Crust 12 Mg 3.7           wt%ox Rudnick & Fountain 1995 Wedepohl 1995
Continental Crust 12 Mg 53.4             Rudnick & Fountain 1995 Wedepohl 1995
Continental Crust 12 Mg 4.66           wt% Kemp & Hawkesworth 2004 Rudnick & Gao 2004
Continental Crust 12 Mg 3.2           wt% Palme & O'Neill 2004 Rudnick & Gao 2004
Continental Crust 12 Mg 4.4           wt%ox Rudnick & Fountain 1995
Continental Crust 12 Mg 3.2           wt% Taylor & McLennan 1995
Continental Crust 12 Mg 2.2           wt% Wedepohl 1995
Continental Crust 12 Mg 3.15           wt%ox Shaw et al. 1986
Continental Crust 12 Mg 2.8           wt%ox Weaver & Tarney 1984
Continental Crust 12 Mg 23790           ppm Wedepohl & Hartmann 1994 Wedepohl 1991
Continental Crust 12 Mg 3.5           wt%ox Weaver & Tarney 1984 Goldschmidt 1933
Continental Crust 12 Mg 3.1           wt%ox Weaver & Tarney 1984 Vinogradov 1962
Continental Crust 12 Mg 3.9           wt%ox Weaver & Tarney 1984 Taylor 1964
Continental Crust 12 Mg 3.1           wt%ox Weaver & Tarney 1984 Ronov & Yaroshevskiy 1969
Continental Crust 12 Mg 3.2           wt%ox Weaver & Tarney 1984 Holland & Lambert 1972
Continental Crust 12 Mg 3.5           wt%ox Weaver & Tarney 1984 Taylor & McLennan 1981
Continental Crust   Mg# 48.3             Rudnick & Gao 2004 Gao et al. 1998a
Continental Crust   Mg# 50.1             Rudnick & Gao 2004 Shaw et al. 1986
Continental Crust   Mg# 54.3             Rudnick & Gao 2004 Rudnick & Fountain 1995
Continental Crust   Mg# 50.5             Rudnick & Gao 2004 Weaver & Tarney 1984
Continental Crust   Mg# 49             Rudnick & Gao 2004 Smithson 1978
Continental Crust   Mg# 55.3             Rudnick & Gao 2004
Continental Crust   Mg# 50.9             Rudnick & Gao 2004 Holland & Lambert 1972
Continental Crust   Mg# 55.3             Kemp & Hawkesworth 2004 Rudnick & Gao 2004
Continental Crust   Mg# 54.3             Rudnick & Gao 2004 Wedepohl 1995
Continental Crust   Mg# 50.9             Rudnick & Gao 2004 Taylor & McLennan 1985
Taylor & McLennan 1995
Continental Crust   Mg# 48.7             Rudnick & Gao 2004 Taylor 1964
Continental Crust   Mg# 47             Rudnick & Gao 2004 Ronov & Yaroshevsky 1967
Continental Crust   Mg# 44.8             Rudnick & Gao 2004 Christensen & Mooney 1995
Continental Intraplate Peridotite 12 Mg 15.52           wt% Pearson et al. 2004 Ionov 1996
Continental Intraplate Peridotite 12 Mg 15.41           wt% Pearson et al. 2004 Ionov 1996
Continental Intraplate Peridotite 12 Mg 16.02           wt% Pearson et al. 2004 Zipfel & Worner 1992
Continental Intraplate Peridotite 12 Mg 20.97           wt% Pearson et al. 2004 Ionov 1996
Continental Intraplate Peridotite 12 Mg 16.08           wt% Pearson et al. 2004 Ionov 1996
Continental Intraplate Peridotite 12 Mg 20.13           wt% Pearson et al. 2004 Zipfel & Worner 1992
Continental Intraplate Peridotite 12 Mg 18.92           wt% Pearson et al. 2004 Ionov 1996
Continental Intraplate Peridotite 12 Mg 32.94           wt% Pearson et al. 2004 Ionov 1996
Continental Intraplate Peridotite 12 Mg 15.43           wt% Pearson et al. 2004 Ionov 1996
Continental Intraplate Peridotite 12 Mg 15.3           wt% Pearson et al. 2004 Canil & O'Neill 1996
Continental Intraplate Peridotite 12 Mg 20.12           wt% Pearson et al. 2004 Ionov 1996
Continental Intraplate Peridotite 12 Mg 21.47           wt% Pearson et al. 2004 Ionov 1996
Continental Intraplate Peridotite 12 Mg 18.55           wt% Pearson et al. 2004 Ionov 1996
Continental Intraplate Peridotite 12 Mg 20.91           wt% Pearson et al. 2004 Ionov 1996
Continental Intraplate Peridotite 12 Mg 20.77           wt% Pearson et al. 2004 Ionov 1996
Continental Intraplate Peridotite 12 Mg 34.64           wt% Pearson et al. 2004 Zipfel & Worner 1992
Continental Intraplate Peridotite 12 Mg 34           wt% Pearson et al. 2004 Canil & O'Neill 1996
Continental Intraplate Peridotite 12 Mg 32.51           wt% Pearson et al. 2004 Ionov 1996
Continental Intraplate Peridotite 12 Mg 33.21           wt% Pearson et al. 2004 Ionov 1996
Continental Intraplate Peridotite 12 Mg 32.94           wt% Pearson et al. 2004 Ionov 1996
Continental Intraplate Xenoliths 12 Mg 41.84 41.7 2.96     273   Pearson et al. 2004
Continental Intraplate Xenoliths   Mg# 0.899 0.9 0.014     273   Pearson et al. 2004
Continental Intraplate Xenoliths   Mg/Si 1.17 1.2 0.26     273   Pearson et al. 2004
Continental Rift Xenoliths 12 Mg 41.17 41.21 3.43     23   Pearson et al. 2004
Continental Rift Xenoliths   Mg# 0.902 0.903 0.008     23   Pearson et al. 2004
Continental Rift Xenoliths   Mg/Si 1.19 1.19 0.11     23   Pearson et al. 2004
Continental Shields & Platforms 12 Mg 4.7           wt%ox Rudnick & Fountain 1995
Continental Shields & Platforms 12 Mg 7.1           wt%ox Rudnick & Fountain 1995
Core 12 Mg 0           wt% McDonough 2004
Core 12 Mg 0           wt% McDonough 1998
Cratonic Peridotite 12 Mg 20.3           wt% Pearson et al. 2004 Canil & O'Neill 1996
Cratonic Peridotite 12 Mg 21.5           wt% Pearson et al. 2004 Canil & O'Neill 1996
Cratonic Peridotite 12 Mg 17.3           wt% Pearson et al. 2004 Canil & O'Neill 1996
Cratonic Peridotite 12 Mg 21.1           wt% Pearson et al. 2004 Smith et al. 1991
Cratonic Peridotite 12 Mg 35.2           wt% Pearson et al. 2004 Canil & O'Neill 1996
Cratonic Peridotite 12 Mg 20.1           wt% Pearson et al. 2004 Canil & O'Neill 1996
Cratonic Peridotite 12 Mg 13.4           wt% Pearson et al. 2004 Canil & O'Neill 1996
Cratonic Peridotite 12 Mg 19.9           wt% Pearson et al. 2004 Canil & O'Neill 1996
Cratonic Peridotite 12 Mg 22.3           wt% Pearson et al. 2004 Canil & O'Neill 1996
Cratonic Peridotite 12 Mg 32.5           wt% Pearson et al. 2004 Smith et al. 1991
Cratonic Peridotite 12 Mg 16.2           wt% Pearson et al. 2004 Canil & O'Neill 1996
Cratonic Peridotite 12 Mg 20.9           wt% Pearson et al. 2004 Smith et al. 1991
Cratonic Peridotite 12 Mg 36.5           wt% Pearson et al. 2004 Canil & O'Neill 1996
Cratonic Peridotite 12 Mg 35           wt% Pearson et al. 2004 Canil & O'Neill 1996
Cratonic Xenoliths 12 Mg 46.19 46.52 2.94     232   Pearson et al. 2004
Cratonic Xenoliths   Mg# 0.919 0.921 0.014     232   Pearson et al. 2004
Cratonic Xenoliths   Mg/Si 1.38 1.39 0.11     232   Pearson et al. 2004
D'Orbigny Angrite 12 Mg 39.6             Mittlefehldt 2004 Mittlefehldt et al. 2002
Dacites 12 Mg 1.78         578 wt%ox Le Maitre 1976
Danube River Particulates 12 Mg 21000           µg/g Martin & Meybeck 1979
Depleted D-MORB basalts 12 Mg 38.73           wt% Workman & Hart 2005
Depleted D-MORB basalts 12 Mg 89.4             Workman & Hart 2005
Depleted Mantle 12 Mg 38.22   0.3822       wt%ox Salters & Stracke 2004
Depleted MORB Mantle Clinopyroxene 12 Mg 16.19           wt% Workman & Hart 2005
Depleted MORB Mantle Clinopyroxene 12 Mg 90.8             Workman & Hart 2005
Depleted MORB Mantle Olivine 12 Mg 89.5             Workman & Hart 2005
Depleted MORB Mantle Olivine 12 Mg 48.59           wt% Workman & Hart 2005
Depleted MORB Mantle Orthopyroxene 12 Mg 30.55           wt% Workman & Hart 2005
Depleted MORB Mantle Orthopyroxene 12 Mg 89.7             Workman & Hart 2005
Depleted MORB Mantle Spinel 12 Mg 19.27           wt% Workman & Hart 2005
Depleted MORB Mantle Spinel 12 Mg 73.2             Workman & Hart 2005
Diabases 12 Mg 6.4         370 wt%ox Le Maitre 1976
Diatom Oozes & Clay 12 Mg 1.73         15 wt%ox Plank & Langmuir 1998
Diatome Clay 12 Mg 2.2         6 wt%ox Plank & Langmuir 1998
Diatome Mud 12 Mg 2.2         6 wt%ox Plank & Langmuir 1998
Diatome Ooze 12 Mg 2.18         4 wt%ox Plank & Langmuir 1998
Diorite 12 Mg 3.74         260 wt%ox Gao et al. 1998
Diorites 12 Mg 3.71         755 wt%ox Le Maitre 1976
Dolerites 12 Mg 6.78         687 wt%ox Le Maitre 1976
DSDP/ODP Site 800 12 Mg 4.13           wt%ox Plank & Langmuir 1998
DSDP/ODP Site 801 12 Mg 3.05           wt%ox Plank & Langmuir 1998
DSDP/ODP Site 801 12 Mg 2.49           wt%ox Elliot et al. 1997
Dunites 12 Mg 37.94         78 wt%ox Le Maitre 1976
E-MORB 12 Mg 7.43           wt% Klein 2004 Lehnert 2000
Early Archean Upper Crust 12 Mg 3.4           wt%ox Condie 1993
Early Archean Upper Crust 12 Mg 4.06           wt%ox Condie 1993
Early Proterozoic Upper Crust 12 Mg 1.95           wt%ox Condie 1993
Early Proterozoic Upper Crust 12 Mg 2.23           wt%ox Condie 1993
Earth 12 Mg 13.2           ppm Morgan et al. 1978 Ganapathy & Anders 1974
East China Craton 12 Mg 3.48           wt%ox Gao et al. 1998
East China Craton 12 Mg 3.77           wt%ox Gao et al. 1998
East Sunda Trench 12 Mg 2.45           wt%ox Plank & Langmuir 1998
EET 83309 Urelite 12 Mg 210             Mittlefehldt 2004 Warren & Kallemeyn 1989b
EET 84302 Acapulcoite 12 Mg 210             Mittlefehldt 2004 Weigel et al. 1999
Enstatite Chondrites   Al/Mg 0.075   0.003         McDonough & Sun 1995
Enstatite Chondrites   Fe/Mg 2.6   0.2         McDonough & Sun 1995
Enstatite Chondrites   Fe/Mg 1.6   0.2         McDonough & Sun 1995
Enstatite Chondrites   Mg/Cr 35   4         McDonough & Sun 1995
Enstatite Chondrites   Mg/Cr 45   8         McDonough & Sun 1995
Enstatite Chondrites   Mg/Si 0.7   0.07         McDonough & Sun 1995
Enstatite Chondrites   Mg/V 0.204   0.025         McDonough & Sun 1995
Estherville Mesosiderite 12 Mg 102.4             Mittlefehldt 2004 Mittlefehldt in press
Simpson & Ahrens 1977
Eucrites 12 Mg 15           ppm Morgan et al. 1978
Felsic Archean Granulites 12 Mg 1.1 0.88       378 wt%ox Rudnick & Fountain 1995
Felsic Granulites 12 Mg 2.44         137 wt%ox Gao et al. 1998
Felsic Post-Archean Granulites 12 Mg 1.3 1.2       223 wt%ox Rudnick & Fountain 1995
Felsic Volcanics 12 Mg 0.74           wt%ox Condie 1993
Felsic Volcanics 12 Mg 0.5           wt%ox Condie 1993
Felsic Volcanics 12 Mg 0.81           wt%ox Condie 1993
Felsic Volcanics 12 Mg 0.99           wt%ox Condie 1993
Felsic Volcanics 12 Mg 1.36         972 wt%ox Gao et al. 1998
Felsic Volcanics 12 Mg 0.6           wt%ox Condie 1993
Felsic Volcanics 12 Mg 0.4           wt%ox Condie 1993
Felsic Volcanics 12 Mg 0.5           wt%ox Condie 1993
Ferruginous Clay 12 Mg 1.61         2 wt%ox Plank & Langmuir 1998
Frankfort Howardites 12 Mg 126.3             Mittlefehldt 2004 McCarthy et al. 1972
Palme et al. 1978
Fresh Mid-Ocean Ridge Basalts 12 Mg 5             Edmond et al. 1979
Fresh Mid-Ocean Ridge Basalts 12 Mg 36.77           wt% Palme & O'Neill 2004
Fresh Mid-Ocean Ridge Basalts 12 Mg 8.57         203 wt% Kelemen et al. 2004
Fresh Mid-Ocean Ridge Basalts   Mg# 63.23         203   Kelemen et al. 2004
Fresh MORB in Indian Ocean 12 Mg 8.85           wt% Klein 2004 Klein et al. 1991
Gabbros 12 Mg 7.59         1317 wt%ox Le Maitre 1976
Gabbros 12 Mg 7.6           wt%ox Wedepohl 1995 Le Maitre 1976
Galapagos Hydrothermal Vents 12 Mg       51.1 52.7     Edmond et al. 1979
Ganges River Particulates 12 Mg 12400           µg/g Martin & Meybeck 1979
Garnet Peridotites 12 Mg 42.6           wt%ox McDonough 1990 Maaloe & Aoki 1975
Garnet Peridotites 12 Mg 90.6             McDonough 1990 Maaloe & Aoki 1975
Garnet Peridotites 12 Mg   91.6           McDonough 1991 Maaloe & Aoki 1975
Jordan 1979
Boyd 1989
McDonough 1990
Garnet Peridotites 12 Mg 43.55           wt%ox McDonough 1990 Jordan 1979
Garnet Peridotites 12 Mg   44.2         wt%ox McDonough 1991 Maaloe & Aoki 1975
Jordan 1979
Boyd 1989
McDonough 1990
Garnet Peridotites 12 Mg 91.1             McDonough 1990 Jordan 1979
Garnet Peridotites   MgO/Ni 199   44         McDonough 1991
Garonne River Particulates 12 Mg 17300           µg/g Martin & Meybeck 1979
Gibson Lodranite 12 Mg 188             Mittlefehldt 2004 Weigel et al. 1999
Goalpara Ureilite 12 Mg 26.1   0.8       wt%ox Boynton et al. 1976
Granites 12 Mg 0.57           wt%ox Wedepohl 1995 Whalen et al. 1987
Granites 12 Mg 0.71         2236 wt%ox Le Maitre 1976
Granites 12 Mg 0.84           wt% Kemp & Hawkesworth 2004 Sylvester 1995
Granites 12 Mg 0.29         8 wt% Kemp & Hawkesworth 2004 Kemp 2001
Granites 12 Mg 0.4           wt%ox Condie 1993
Granites 12 Mg 0.37           wt%ox Condie 1993
Granites 12 Mg 0.42           wt%ox Condie 1993
Granites 12 Mg 1.06         402 wt%ox Gao et al. 1998
Granites 12 Mg 0.62         1226 wt%ox Gao et al. 1998
Granites   Mg# 35.5             Kemp & Hawkesworth 2004 Sylvester 1995
Granites   Mg# 29.7         8   Kemp & Hawkesworth 2004 Kemp 2001
Granodiorites 12 Mg 1.74         723 wt%ox Le Maitre 1976
Granodiorites 12 Mg 1.74           wt%ox Wedepohl 1995 Le Maitre 1976
Granulites 12 Mg 3.73 2.66       592 wt%ox Rudnick & Presper 1990
Granulites 12 Mg 3.4           wt%ox Weaver & Tarney 1984 Weaver & Tarney 1982
Granulites 12 Mg 3.47 1.73       655 wt%ox Rudnick & Presper 1990
Granulites   Mg# 49.5 42.9           Rudnick & Presper 1990
Granulites   Mg# 52.3 41.7           Rudnick & Presper 1990
Granulitic Xenolites 12 Mg 7.68 7.32       350 wt%ox Rudnick & Presper 1990
Granulitic Xenolites   Mg# 60.4 59.8           Rudnick & Presper 1990
Graywackes 12 Mg 2           wt%ox Condie 1993
Graywackes 12 Mg 3.3           wt%ox Condie 1993
Graywackes 12 Mg 2.2           wt%ox Condie 1993
Graywackes 12 Mg 2.1           wt%ox Condie 1993
Graywackes 12 Mg 3.5           wt%ox Condie 1993
Graywackes 12 Mg 2.1           wt%ox Condie 1993
Greater Antilles Basalt 12 Mg 10.57         21 wt% Kelemen et al. 2004
Greater Antilles Basalt   Mg# 67.64         21   Kelemen et al. 2004
Green Clay 12 Mg 3.15         3 wt%ox Plank & Langmuir 1998
Greywackes 12 Mg 2.3           wt%ox Wedepohl 1995
Group 1 Lunar Crystalline Rocks 12 Mg 7.5         6 wt%ox Compston et al. 1970
Group 1 Lunar Crystalline Rocks 12 Mg 7.6         6 wt%ox Compston et al. 1970
Group 2 Lunar Crystalline Rocks 12 Mg 7.17         8 wt%ox Compston et al. 1970
Group 2 Lunar Crystalline Rocks 12 Mg 6.66         8 wt%ox Compston et al. 1970
H Ordinary Chondrites 12 Mg 14.3           ppm Morgan et al. 1978 Mason 1965
Halley Comet Tail   C/Mg 12             Brownlee 2004 Geiss 1988
Halley Comet Tail   C/Mg 11.3             Brownlee 2004 Grun & Jessberger 1990
Halley Comet Tail   C/Mg 11.3             Brownlee 2004 Huebner 2002
Halley Comet Tail   H/Mg 31             Brownlee 2004 Grun & Jessberger 1990
Halley Comet Tail   H/Mg 25200             Brownlee 2004 Huebner 2002
Halley Comet Tail   H/Mg 39             Brownlee 2004 Geiss 1988
Halley Comet Tail   N/Mg 0.7             Brownlee 2004 Grun & Jessberger 1990
Halley Comet Tail   N/Mg       0.4 0.8     Brownlee 2004 Geiss 1988
Halley Comet Tail   N/Mg 2.3             Brownlee 2004 Huebner 2002
Halley Comet Tail   O/Mg 15             Brownlee 2004 Grun & Jessberger 1990
Halley Comet Tail   O/Mg 18.5             Brownlee 2004 Huebner 2002
Halley Comet Tail   O/Mg 22.3             Brownlee 2004 Geiss 1988
Harzburgites 12 Mg 33.18         199 wt%ox Le Maitre 1976
Havero Urelite 12 Mg 224             Mittlefehldt 2004 Wanke et al. 1972
Hawaiites 12 Mg 5.58         58 wt%ox Le Maitre 1976
Honshu Basalt 12 Mg 9.29         137 wt% Kelemen et al. 2004
Honshu Basalt   Mg# 65         137   Kelemen et al. 2004
Hydrothermal Sediment 12 Mg 2.35         4 wt%ox Plank & Langmuir 1998
IAB Campo del Cielo 12 Mg 159             Mittlefehldt 2004 Bild 1977
IAB Landes 12 Mg 153             Mittlefehldt 2004 Bild 1977
IAB Udei Station 12 Mg 197             Mittlefehldt 2004 Kallemeyn & Wasson 1985
Ibitira Eucrite 12 Mg 43.9             Mittlefehldt 2004 Jarosewich 1990
Barrat et al. 2000
Igneous Rocks 12 Mg 5.06         22775 wt%ox Le Maitre 1976
Inner Blake Plateau Phosphorites 12 Mg 1.02           wt%ox Manheim et al. 1980
Interior North China Craton 12 Mg 2.67           wt%ox Gao et al. 1998
Interior North China Craton 12 Mg 4.77           wt%ox Gao et al. 1998
Interior North China Craton 12 Mg 3.47           wt%ox Gao et al. 1998
Interior North China Craton 12 Mg 3.72           wt%ox Gao et al. 1998
Interior North China Craton 12 Mg 3.76           wt%ox Gao et al. 1998
Interlayerd Clay & Chert 12 Mg 0.44         2 wt%ox Plank & Langmuir 1998
Interlayered Chert & Limestone 12 Mg 0.81         5 wt%ox Plank & Langmuir 1998
Interlayered Clay & Chert 12 Mg 2.41         12 wt%ox Plank & Langmuir 1998
Intermediate Granulites 12 Mg 3.66         136 wt%ox Gao et al. 1998
Intermediate Mafic Archean Granulites 12 Mg 3.6 3.3       106 wt%ox Rudnick & Fountain 1995
Intermediate Mafic Granulitic Xenolites 12 Mg 5.5 5.3       48 wt%ox Rudnick & Fountain 1995
Intermediate Mafic Post-Archean Granulites 12 Mg 3.8 3.6       132 wt%ox Rudnick & Fountain 1995
Intermediate Precambrian Granulites 12 Mg 3.18         26 wt%ox Shaw et al. 1986
Interplanetary Dust Particles 12 Mg 0.98             Bradley 2004 Schramm et al. 1989
Intra Stellar Medium 12 Mg 6.33   0.3165         Palme & Jones 2004 Savage & Sembach 1996
Island Arc Andesite 12 Mg 7.95         32 wt% Kelemen et al. 2004
Island Arc Andesite 12 Mg 9.84         503 wt% Kelemen et al. 2004
Island Arc Andesite   Mg# 66.29         503   Kelemen et al. 2004
Island Arc Andesite   Mg# 66.29         32   Kelemen et al. 2004
Island Arcs 12 Mg 2.11           wt% Taylor & McLennan 1995
Island Arcs 12 Mg 2.15         323 wt% Kemp & Hawkesworth 2004 Silver & Chappell 1998
Island Arcs   Mg# 38.7         323   Kemp & Hawkesworth 2004 Silver & Chappell 1998
Izu-Bonin Trench 12 Mg 0.92           wt%ox Plank & Langmuir 1998
Japan Trench 12 Mg 1.67           wt%ox Plank & Langmuir 1998
Java Trench 12 Mg 2.72           wt%ox Plank & Langmuir 1998
Johnstown Diogenite 12 Mg 153.6             Mittlefehldt 2004 Wanke et al. 1977
Kamchatka Basalt 12 Mg 9.39         78 wt% Kelemen et al. 2004
Kamchatka Basalt   Mg# 65.09         78   Kelemen et al. 2004
Kamchatka Trench 12 Mg 0.74           wt%ox Plank & Langmuir 1998
Kapoeta Howardites 12 Mg 95             Mittlefehldt 2004 Wanke et al. 1972
Kenna Ureilite 12 Mg 33.1   0.7       wt%ox Boynton et al. 1976
Kerm Trench 12 Mg 2.87           wt%ox Plank & Langmuir 1998
Kermadec Basalts 12 Mg 9.07         36 wt% Kelemen et al. 2004
Kermadec Basalts   Mg# 64.48         36   Kelemen et al. 2004
Kimberlite 12 Mg 26.7         32 wt% Farmer 2004 Taylor et al. 1994
Kimberlite 12 Mg 27.8         22 wt% Farmer 2004 Taylor et al. 1994
Kimberlite 12 Mg 29.1         35 wt% Farmer 2004 Taylor et al. 1994
Komatiites 12 Mg 26           wt%ox Condie 1993
Komatiites   MgO/Ni 210             McDonough 1991
Kuriles Trench 12 Mg 1.67           wt%ox Plank & Langmuir 1998
L Ordinary Chondrites 12 Mg 0.928             Bradley 2004 Jarosewich 1990
Late Archean Upper Crust 12 Mg 2.89           wt%ox Condie 1993
Late Archean Upper Crust 12 Mg 2.57           wt%ox Condie 1993
Late Proterozoic Upper Crust 12 Mg 1.82           wt%ox Condie 1993
Late Proterozoic Upper Crust 12 Mg 2.07           wt%ox Condie 1993
Latites 12 Mg 2.22         146 wt%ox Le Maitre 1976
Least-Altered Basalt at ODP/DSDP Site 504 12 Mg 8.44   0.38     58 wt%ox Alt et al. 1986
Lesser Antilles Basalt 12 Mg 13.69         84 wt% Kelemen et al. 2004
Lesser Antilles Basalt   Mg# 70.97         84   Kelemen et al. 2004
Leucitic Basalt 12 Mg 8.36           wt% Fegley, Jr. 2004 Volkov et al. 1986
Lherzolites 12 Mg 28.37         177 wt%ox Le Maitre 1976
Low Si-Mg Mantle 12 Mg 37.78           wt% Walter 2004 Hart & Zindler 1986
Low Si-Mg Mantle   Mg# 89.8             Walter 2004 Hart & Zindler 1986
Low Si-Mg Mantle   MgO/SiO2 0.82             Walter 2004 Hart & Zindler 1986
Lower Continental Crust 12 Mg 4.1           wt%ox Shaw et al. 1986 Taylor & McLennan 1981
Lower Continental Crust 12 Mg 4.9           wt%ox Wedepohl 1995
Lower Continental Crust 12 Mg 4.1           wt%ox Shaw et al. 1986
Lower Continental Crust 12 Mg 3.8           wt% Taylor & McLennan 1995
Lower Continental Crust 12 Mg 31550           ppm Wedepohl 1995
Lower Continental Crust 12 Mg 7.1           wt%ox Rudnick & Fountain 1995
Lower Continental Crust 12 Mg 7.24           wt% Rudnick & Gao 2004 Rudnick & Fountain 1995
Lower Continental Crust 12 Mg 6.28           wt% Rudnick & Gao 2004 Taylor & McLennan 1985
Taylor & McLennan 1995
Lower Continental Crust 12 Mg 4.46           wt% Rudnick & Gao 2004 Gao et al. 1998a
Lower Continental Crust 12 Mg 5.32           wt% Rudnick & Gao 2004 Wedepohl 1995
Lower Continental Crust 12 Mg 7.21           wt% Rudnick & Gao 2004 Rudnick & Presper 1990
Lower Continental Crust 12 Mg 7.24           wt% Rudnick & Gao 2004 Rudnick & Fountain 1995
Lower Continental Crust 12 Mg 3.5           wt% Rudnick & Gao 2004 Weaver & Tarney 1984
Lower Continental Crust 12 Mg 8.72           wt% Rudnick & Gao 2004 Rudnick & Taylor 1987
Lower Continental Crust 12 Mg 4.36           wt% Rudnick & Gao 2004 Shaw et al. 1994
Lower Continental Crust 12 Mg 9.79           wt% Rudnick & Gao 2004 Liu et al. 2001
Lower Continental Crust 12 Mg 3.53           wt% Rudnick & Gao 2004 Villaseca et al. 1999
Lower Continental Crust 12 Mg 6.04           wt% Rudnick & Gao 2004 Condie & Selverstone 1999
Lower Continental Crust 12 Mg 7.24           wt% Kemp & Hawkesworth 2004 Rudnick & Gao 2004
Lower Continental Crust   Mg# 52.3             Rudnick & Gao 2004 Shaw et al. 1994
Lower Continental Crust   Mg# 51.4             Rudnick & Gao 2004 Taylor & McLennan 1985
Taylor & McLennan 1995
Lower Continental Crust   Mg# 56.5             Rudnick & Gao 2004 Rudnick & Taylor 1987
Lower Continental Crust   Mg# 58.6             Rudnick & Gao 2004 Rudnick & Presper 1990
Lower Continental Crust   Mg# 55.9             Rudnick & Gao 2004 Wedepohl 1995
Lower Continental Crust   Mg# 50.5             Rudnick & Gao 2004 Condie & Selverstone 1999
Lower Continental Crust   Mg# 60.1             Rudnick & Gao 2004 Rudnick & Fountain 1995
Lower Continental Crust   Mg# 46.1             Rudnick & Gao 2004 Gao et al. 1998a
Lower Continental Crust   Mg# 76.2             Rudnick & Gao 2004 Liu et al. 2001
Lower Continental Crust   Mg# 60.1             Kemp & Hawkesworth 2004 Rudnick & Gao 2004
Lower Continental Crust   Mg# 45.6             Rudnick & Gao 2004 Villaseca et al. 1999
Lower Continental Crust   Mg# 53.4             Rudnick & Gao 2004 Weaver & Tarney 1984
Lujavrites 12 Mg 1.35         76 wt%ox Le Maitre 1976
Lunar Anothosites 12 Mg 7.6           wt%ox Compston et al. 1970 Wood et al. 1970
Lunar Breccias 12 Mg 7.47         6 wt%ox Compston et al. 1970
Lunar Breccias 12 Mg 7.81         2 wt%ox Compston et al. 1970
Lunar Crystalline Rocks 12 Mg 7.13           wt%ox Compston et al. 1970
Lunar Soil 12 Mg 7.87         1 wt%ox Compston et al. 1970
Luzon Basalt 12 Mg 10.86         24 wt% Kelemen et al. 2004
Luzon Basalt   Mg# 66.05         24   Kelemen et al. 2004
MAC 88177 Lodranite 12 Mg 221             Mittlefehldt 2004 Weigel et al. 1999
Macibini Eucrites 12 Mg 50.5             Mittlefehldt 2004 McCarthy et al. 1973
Buchanan et al. 2000b
MacKenzie River Particulates 12 Mg 4000           µg/g Martin & Meybeck 1979
Mafic Archean Granulites 12 Mg 8.53 7.25       100 wt%ox Rudnick & Fountain 1995
Mafic Granulites 12 Mg 6.14         128 wt%ox Gao et al. 1998
Mafic Granulitic Xenolites 12 Mg 8.56 8.24       269 wt%ox Rudnick & Fountain 1995
Mafic Intrusions 12 Mg 7.29         308 wt%ox Gao et al. 1998
Mafic Post-Archean Granulites 12 Mg 8.14 7.3       95 wt%ox Rudnick & Fountain 1995
Makran Trench 12 Mg 3.49           wt%ox Plank & Langmuir 1998
Malvern Howardites 12 Mg 72.6             Mittlefehldt 2004 Palme et al. 1978
Manganese Nodules 12 Mg 16000           ppm Li 1991 Baturin 1988
Mantle 12 Mg 38.59     37.46 39.25   wt% Walter 2004
Mantle 12 Mg 38.59           wt% Walter 2004
Mantle 12 Mg 22.8           wt% McDonough 2004
Mantle 12 Mg 35.8           wt% Palme & O'Neill 2004
Mantle   Mg# 89.28     88.91 89.49     Walter 2004
Mantle   Mg# 89.3             Walter 2004
Mantle   MgO/SiO2 0.86             Walter 2004
Mantle Xenoliths 12 Mg 41.4           wt% Pearson et al. 2004 McDonough 1990
Mantle Xenoliths   Mg# 0.9             Pearson et al. 2004 McDonough 1990
Mantle Xenoliths   Mg/Si 1.21             Pearson et al. 2004 McDonough 1990
Marianas Basalt 12 Mg 8.57         168 wt% Kelemen et al. 2004
Marianas Basalt   Mg# 65.05         168   Kelemen et al. 2004
Marianas Trench 12 Mg 3.59           wt%ox Plank & Langmuir 1998
Marine Organisms 12 Mg 94000           ppm Li 1991 Bowen 1979
Marine Pelagic Clay 12 Mg 21000           ppm Li 1991 Turekian & Wedepohl 1961
Marine Pelagic Clay 12 Mg 21000           ppm Li 1982
Marine Shales 12 Mg 15000           ppm Li 1991 Turekian & Wedepohl 1961
Mars Mantle 12 Mg 30.1           wt% McSween, Jr. 2004 Wanke & Dreibus 1988
Mars Mantle 12 Mg 29.7           wt% McSween, Jr. 2004 Lodders & Fegley 1997
Mars Mantle 12 Mg 27.3           wt% McSween, Jr. 2004 Sanloup 1999
Mars Rocks 12 Mg 3.2   0.32       wt% McSween, Jr. 2004 Wanke et al. 2001
Mars Rocks 12 Mg 3.91   0.391       wt% McSween, Jr. 2004 Wanke et al. 2001
Mars Rocks 12 Mg 1.51   0.151       wt% McSween, Jr. 2004 Wanke et al. 2001
Mars Rocks 12 Mg 3.5   0.35       wt% McSween, Jr. 2004 Wanke et al. 2001
Mars Rocks 12 Mg 6.71   0.671       wt% McSween, Jr. 2004 Wanke et al. 2001
Mars Rocks 12 Mg 4.56   0.456       wt% McSween, Jr. 2004 Wanke et al. 2001
Mars Soil 12 Mg 8.16   0.816       wt% McSween, Jr. 2004 Wanke et al. 2001
Mars Soil 12 Mg 6.4     3.4 11.4   wt% McSween, Jr. 2004 Clark et al. 1982
Mars Soil 12 Mg 7.46   0.746       wt% McSween, Jr. 2004 Wanke et al. 2001
Mars Soil 12 Mg 9.95   0.995       wt% McSween, Jr. 2004 Wanke et al. 2001
Mars Soil 12 Mg 7.3     4.3 12.3   wt% McSween, Jr. 2004 Clark et al. 1982
Mars Soil 12 Mg 6.4     3.4 11.4   wt% McSween, Jr. 2004 Clark et al. 1982
Mars Soil 12 Mg 5.3     2.3 10.3   wt% McSween, Jr. 2004 Clark et al. 1982
Mars Soil 12 Mg 9.2   0.92       wt% McSween, Jr. 2004 Wanke et al. 2001
Mavic Volcanics 12 Mg 5.6         632 wt%ox Gao et al. 1998
Mead Peak Phosphatic Shale Member 12 Mg 0.36         41 wt%ox Gulbrandsen 1966
Mekong River Particulates 12 Mg 13500           µg/g Martin & Meybeck 1979
Melitite-rich Chondrules 12 Mg 9.9     6.9 12.6 10 wt%ox Martin & Mason 1974
Mercury Crustal Silicates 12 Mg 50           wt% Taylor & Scott 2004 Fegley & Cameron 1987
Mercury Crustal Silicates 12 Mg 10.8           wt% Taylor & Scott 2004 Morgan & Anders 1980
Mercury Crustal Silicates 12 Mg 36.1           wt% Taylor & Scott 2004 Goettel 1988
Jagoutz et al. 1979
Taylor & McLennan 1985
McDonough & Sun 1995
Mercury Crustal Silicates 12 Mg 33.7           wt% Taylor & Scott 2004 Morgan & Anders 1980
Mercury Crustal Silicates 12 Mg 34.6           wt% Taylor & Scott 2004 Goettel 1988
Mercury Crustal Silicates 12 Mg       32 38   wt% Taylor & Scott 2004 Goettel 1988
Mercury Crustal Silicates 12 Mg 19.1           wt% Taylor & Scott 2004
Mercury Crustal Silicates 12 Mg 18.9           wt% Taylor & Scott 2004 Krot et al. 2001
Mercury Crustal Silicates 12 Mg 37.4           wt% Taylor & Scott 2004 Krot et al. 2001
Mesozoic & Cenozoic Extensions 12 Mg 2.6           wt%ox Rudnick & Fountain 1995
Mesozoic & Cenozoic Extensions 12 Mg 4.8           wt%ox Rudnick & Fountain 1995
Mesozoic & Cenozoic Orogens 12 Mg 3.3           wt%ox Rudnick & Fountain 1995
Mesozoic & Cenozoic Orogens 12 Mg 4.8           wt%ox Rudnick & Fountain 1995
Mesozoic & Cenozoic Upper Crust 12 Mg 2.21           wt%ox Condie 1993
Mesozoic & Cenozoic Upper Crust 12 Mg 1.94           wt%ox Condie 1993
META 78008 Urelite 12 Mg 210             Mittlefehldt 2004 Warren & Kallemeyn 1992
Metafelsic Volcanics 12 Mg 2.23         41 wt%ox Gao et al. 1998
Metalliferous Clay 12 Mg 3.23         12 wt%ox Plank & Langmuir 1998
Metamorphic Rocks 12 Mg 2.91           wt%ox Wedepohl 1995 Poldervaart 1955
Metapelitic Granulitic Xenolites 12 Mg 3.12 3.03       78 wt%ox Rudnick & Fountain 1995
Mexico Trench 12 Mg 2.87           wt%ox Plank & Langmuir 1998
Middle Continental Crust 12 Mg 1.43           wt% Rudnick & Gao 2004 Weaver & Tarney 1984
Middle Continental Crust 12 Mg 3.4           wt%ox Rudnick & Fountain 1995
Middle Continental Crust 12 Mg 3.67           wt% Rudnick & Gao 2004 Gao et al. 1998
Middle Continental Crust 12 Mg 1.27           wt% Rudnick & Gao 2004 Shaw et al. 1994
Middle Continental Crust 12 Mg 3.59           wt% Kemp & Hawkesworth 2004 Rudnick & Gao 2004
Middle Continental Crust 12 Mg 3.59   0.1       wt% Rudnick & Gao 2004
Middle Continental Crust 12 Mg 3.5           wt% Rudnick & Gao 2004 Rudnick & Fountain 1995
Middle Continental Crust   Mg# 43.8             Rudnick & Gao 2004 Weaver & Tarney 1984
Middle Continental Crust   Mg# 51.5             Rudnick & Gao 2004
Middle Continental Crust   Mg# 54.5             Rudnick & Gao 2004 Gao et al. 1998
Middle Continental Crust   Mg# 48.6             Rudnick & Gao 2004 Rudnick & Fountain 1995
Middle Continental Crust   Mg# 45.5             Rudnick & Gao 2004 Shaw et al. 1994
Middle Continental Crust   Mg# 51.5             Kemp & Hawkesworth 2004 Rudnick & Gao 2004
Middle Proterozoic Upper Crust 12 Mg 1.87           wt%ox Condie 1993
Middle Proterozoic Upper Crust 12 Mg 2.14           wt%ox Condie 1993
Miles IIE Iron 12 Mg 65.1             Mittlefehldt 2004 Ebihara et al. 1997
Miles IIE Iron 12 Mg 42             Mittlefehldt 2004 Ebihara et al. 1997
Mincy Mesosiderite 12 Mg 124             Mittlefehldt 2004 Mittlefehldt in press
Simpson & Ahrens 1977
Monzonites 12 Mg 2.02         252 wt%ox Le Maitre 1976
Moon 12 Mg 17.4           ppm Morgan et al. 1978 Ganapathy & Anders 1974
Moore County Eucrite 12 Mg 56.7             Mittlefehldt 2004 Barrat et al. 2000
McCarthy et al. 1973
MORB Basaltic Glass 12 Mg 6.87           wt% Klein 2004 Lehnert 2000
MORB Basaltic Glass 12 Mg 7.21           wt% Klein 2004 Lehnert 2000
MORB Basaltic Glass 12 Mg 5.62           wt% Klein 2004 Lehnert 2000
MORB Basaltic Glass 12 Mg 8.37           wt% Klein 2004 Lehnert 2000
MORB Basaltic Glass 12 Mg 7.85           wt% Klein 2004 Lehnert 2000
MORB Basaltic Glass   Mg# 58.6             Klein 2004 Lehnert 2000
MORB Basaltic Glass   Mg# 52.5             Klein 2004 Lehnert 2000
MORB Basaltic Glass   Mg# 55.2             Klein 2004 Lehnert 2000
MORB Basaltic Glass   Mg# 62.6             Klein 2004 Lehnert 2000
MORB Basaltic Glass   Mg# 43.3             Klein 2004 Lehnert 2000
Mugearites 12 Mg 3.2         55 wt%ox Le Maitre 1976
N-MORB 12 Mg 9.74           wt% Workman & Hart 2005 Presnall & Hoover 1987
N-MORB 12 Mg 7.576   0.9243     26 wt%ox Hofmann 1988 Jochum et al. 1988
N-MORB 12 Mg 70.6           ng/g Workman & Hart 2005 Presnall & Hoover 1987
N-MORB 12 Mg 7.58           wt% Klein 2004 Niu et al. 1999
N-MORB 12 Mg 7.576           wt%ox Hart et al. 1999 Hofmann 1988
Ito et al. 1987
Smith et al. 1995
Hauri & Hart 1997
N-MORB 12 Mg 8.53           wt% Klein 2004 Lehnert 2000
N-MORB 12 Mg 8.67           wt% Klein 2004 Lehnert 2000
N-MORB 12 Mg 56.4           wt%ox Hart et al. 1999 Hofmann 1988
Ito et al. 1987
Smith et al. 1995
Hauri & Hart 1997
N-MORB 12 Mg 7.23           wt% Klein 2004 Thompson et al. 1980
Nakhla Meteorite 12 Mg 7.3   0.2         McSween, Jr. 2004 Lodders 1998
Nankai Trench 12 Mg 2.22           wt%ox Plank & Langmuir 1998
Nano Ooze 12 Mg 1.59         4 wt%ox Plank & Langmuir 1998
Nepheline Leucite Basalts 12 Mg 10.63         70 wt%ox Le Maitre 1976
Nepheline Syenites 12 Mg 0.77         108 wt%ox Le Maitre 1976
Nephelinites 12 Mg 6.39         159 wt%ox Le Maitre 1976
New Hebrides Islands 12 Mg 11.33         65 wt% Kelemen et al. 2004
New Hebrides Islands   Mg# 69.53         65   Kelemen et al. 2004
Niger River Particulates 12 Mg 9300           µg/g Martin & Meybeck 1979
Nile River Particulates 12 Mg 18500           µg/g Martin & Meybeck 1979
Norites 12 Mg 8.73         188 wt%ox Le Maitre 1976
North American Shale Composite (NASC) 12 Mg 2.86           wt%ox Condie 1993
North Antilles Trench 12 Mg 2.77           wt%ox Plank & Langmuir 1998
North Qinling Belt in China 12 Mg 3.94           wt%ox Gao et al. 1998
North Qinling Belt in China 12 Mg 3.2           wt%ox Gao et al. 1998
North Qinling Belt in China 12 Mg 3.38           wt%ox Gao et al. 1998
North Qinling Belt in China 12 Mg 3.01           wt%ox Gao et al. 1998
North Qinling Belt in China 12 Mg 4.24           wt%ox Gao et al. 1998
Northern Blake Plateau Phosphorites 12 Mg 1.2         8 wt%ox Manheim et al. 1980
Novo-Urei Ureilite 12 Mg 34.5   0.7       wt%ox Boynton et al. 1976
Nuevo Laredo Eucrite 12 Mg 34             Mittlefehldt 2004 Warren & Jerde 1987
Ocean Arc Xenoliths 12 Mg 44.61 44.66 1.87     21   Pearson et al. 2004
Ocean Arc Xenoliths   Mg# 0.905 0.906 0.007     21   Pearson et al. 2004
Ocean Arc Xenoliths   Mg/Si 1.3 1.29 0.09     21   Pearson et al. 2004
Ocean Island Peridotite 12 Mg 19.03           wt% Pearson et al. 2004 Sen 1988
Ocean Island Peridotite 12 Mg 17.04           wt% Pearson et al. 2004 Sen 1988
Ocean Island Peridotite 12 Mg 16.61           wt% Pearson et al. 2004 Sen 1988
Ocean Island Peridotite 12 Mg 33.6           wt% Pearson et al. 2004 Sen 1988
Ocean Island Peridotite 12 Mg 33.4           wt% Pearson et al. 2004 Sen 1988
Ocean Island Peridotite 12 Mg 16.05           wt% Pearson et al. 2004 Sen 1988
Oceanic Crust 12 Mg 49600           ppm Wedepohl & Hartmann 1994 Wedepohl 1981
Oceanic Island Xenoliths 12 Mg 44.25 44.73 234     16   Pearson et al. 2004
Oceanic Island Xenoliths   Mg# 0.895 0.908 0.022     16   Pearson et al. 2004
Oceanic Island Xenoliths   Mg/Si 1.31 1.3 0.11     16   Pearson et al. 2004
Oceans Surface water 12 Mg 1.284           g/kg Quinby-Hunt & Turekian 1983 Carpenter & Mannella 1973
ODP Site 735 12 Mg 8.837 8.34       22 wt%ox Hart et al. 1999
ODP Site 735   Mg# 64.54 66.15       22   Hart et al. 1999
ODP/DSDP Site 417/418 12 Mg 6.66           wt%ox Staudigel et al. 1996
Olivine Chondrules 12 Mg 31.8     23.5 36.6 3 wt%ox Martin & Mason 1974
Orangeite 12 Mg 22.1         114 wt% Farmer 2004 Mitchell 1995
Ordinary Chondrites   Al/Mg 0.081   0.002         McDonough & Sun 1995
Ordinary Chondrites   Fe/Mg 1.4   0.1         McDonough & Sun 1995
Ordinary Chondrites   Fe/Mg 1.9   0.1         McDonough & Sun 1995
Ordinary Chondrites   Mg/Cr 39   1         McDonough & Sun 1995
Ordinary Chondrites   Mg/Si 0.81   0.03         McDonough & Sun 1995
Ordinary Chondrites   Mg/V 0.195   0.006         McDonough & Sun 1995
Orgueil Chondrite 12 Mg 105             Grossman et al. 1985
Orgueil Chondrite 12 Mg 9.55         10   Anders & Ebihara 1982
Orgueil Chondrite 12 Mg 9.53         11 wt% Anders & Grevesse 1989
Orinoco River Particulates 12 Mg 5800           µg/g Martin & Meybeck 1979
Paleozoic Orogens 12 Mg 6           wt%ox Rudnick & Fountain 1995
Paleozoic Orogens 12 Mg 3.9           wt%ox Rudnick & Fountain 1995
Paleozoic Upper Crust 12 Mg 1.96           wt%ox Condie 1993
Paleozoic Upper Crust 12 Mg 2.24           wt%ox Condie 1993
Pallasite Olivine   Si/Mg 0.06             Grossman & Wasson 1985 Scott 1977
Parana River Particulates 12 Mg 10900           µg/g Martin & Meybeck 1979
Pelagic Clay 12 Mg 3.07         6 wt%ox Plank & Langmuir 1998
Pelagic Clay 12 Mg 3.64         8 wt%ox Plank & Langmuir 1998
Pelagic Clay 12 Mg 2.33         56 wt%ox Plank & Langmuir 1998
Pelagic Clay 12 Mg 2.33         56 wt%ox Plank & Langmuir 1998
Pelagic Clay 12 Mg 3.13         6 wt%ox Plank & Langmuir 1998
Pelagic Clay 12 Mg 2.22         55 wt%ox Plank & Langmuir 1998
Pelagic Clay 12 Mg 3.1         3 wt%ox Plank & Langmuir 1998
Pelagic Clay 12 Mg 3.13           wt%ox Elliot et al. 1997
Pelites 12 Mg 2.56         69 wt%ox Gao et al. 1998
Pelites 12 Mg 1.97         1341 wt%ox Gao et al. 1998
Pena Blanca Spring Aubrite 12 Mg 238.4             Mittlefehldt 2004 Wolf et al. 1983
Lodders et al. 1993
Peninsular Range Batholith 12 Mg 0.48           wt% Kemp & Hawkesworth 2004 Sylvester 1995
Peninsular Range Batholith   Mg# 34.1             Kemp & Hawkesworth 2004 Sylvester 1995
Peridotites 12 Mg 31.24         103 wt%ox Le Maitre 1976
Periodotite Massifs 12 Mg 38           wt% Walter 2004 Bonatti et al. 1986
Periodotite Massifs   Mg# 88.7             Walter 2004 Bonatti et al. 1986
Periodotite Massifs   MgO/SiO2 0.85             Walter 2004 Bonatti et al. 1986
Periodotite Section in Ophiolites 12 Mg   40.2         wt%ox McDonough 1991
Periodotite Section in Ophiolites   Mg#   89.9           McDonough 1991
Periodotite Section in Ophiolites   MgO/Ni 196   17         McDonough 1991
Peru Trench 12 Mg 1.81           wt%ox Plank & Langmuir 1998
Petersburg Eucrites 12 Mg 67.78             Mittlefehldt 2004 Mason et al. 1979
Buchanan & Reid 1996
Phanerozoic Flood Basalts 12 Mg 6.8         9 wt% Farmer 2004 Wooden et al. 1993
Phanerozoic Flood Basalts 12 Mg 5.7         18 wt% Farmer 2004 Lightfoot et al. 1990
Phanerozoic Flood Basalts 12 Mg 6.9         6 wt% Farmer 2004 Lightfoot et al. 1990
Phanerozoic Flood Basalts 12 Mg 13         7 wt% Farmer 2004 Wooden et al. 1993
Phanerozoic Flood Basalts 12 Mg 6.1         1 wt% Farmer 2004 Peate 1997
Phanerozoic Flood Basalts 12 Mg 8         1 wt% Farmer 2004 Peate 1997
Phanerozoic Flood Basalts 12 Mg 4.3         1 wt% Farmer 2004 Peate 1997
Phanerozoic Flood Basalts 12 Mg 4.2         36 wt% Farmer 2004 Hooper & Hawkesworth 1993
Philip Trench 12 Mg 3.19           wt%ox Plank & Langmuir 1998
Phonolites 12 Mg 1.07         320 wt%ox Le Maitre 1976
Phosphoria Formation 12 Mg 0.3         61 wt%ox Gulbrandsen 1966
Post-Archean Terrrains 12 Mg 2.1           wt%ox Shaw et al. 1986 Eade & Fahrig 1971
Precambrian Canadian Shield 12 Mg 2.24           wt%ox Shaw et al. 1986
Precambrian Granulites 12 Mg 4.06         88 wt%ox Shaw et al. 1986
Primitive Mantle   Fe/Mg 0.255   0.005         Allegre et al. 1995
Primitive Mantle 12 Mg 88.7             McDonough & Frey 1989 Taylor & McLennan 1985
Primitive Mantle 12 Mg 35.1           wt%ox McDonough & Frey 1989 Taylor & McLennan 1985
Primitive Mantle 12 Mg 37.77           wt%ox Allegre et al. 1995
Primitive Mantle 12 Mg 38.3           wt%ox McDonough & Sun 1995 Jagoutz et al. 1979
Primitive Mantle 12 Mg 37.78           wt%ox Hofmann 1988 Hart & Zindler 1986
Primitive Mantle 12 Mg 37.71           wt% Workman & Hart 2005 McDonough & Sun 1995
Primitive Mantle 12 Mg 89.3             Workman & Hart 2005 McDonough & Sun 1995
Primitive Mantle 12 Mg 38.3           wt% Palme & O'Neill 2004 Jagoutz et al. 1979
Primitive Mantle 12 Mg 36.8           wt% Palme & O'Neill 2004 Wanke et al. 1984
Primitive Mantle 12 Mg 37.77           wt% Palme & O'Neill 2004 Allegre et al. 1995
Primitive Mantle 12 Mg 35.5           wt% Palme & O'Neill 2004 Palme & Nickel 1985
Primitive Mantle 12 Mg 37.8           wt% Palme & O'Neill 2004 Hart & Zindler 1986
Primitive Mantle 12 Mg 37.77           wt% Walter 2004 Allegre et al. 1995
Primitive Mantle 12 Mg 36.78           wt% Walter 2004 Palme & O'Neill 2004
Primitive Mantle 12 Mg 22.17   0.2217       wt% Palme & O'Neill 2004
Primitive Mantle 12 Mg 37.8           wt% Palme & O'Neill 2004 McDonough & Sun 1995
Primitive Mantle 12 Mg 38.3           wt% Pearson et al. 2004 Jagoutz et al. 1979
Primitive Mantle 12 Mg 35.5           wt% Pearson et al. 2004 Palme & Nickel 1985
Primitive Mantle 12 Mg 36.77   0.44       wt% Palme & O'Neill 2004
Primitive Mantle 12 Mg 38.1           wt% Palme & O'Neill 2004 Ringwood 1979
Primitive Mantle 12 Mg 37.78           wt% Pearson et al. 2004 Hart & Zindler 1986
Primitive Mantle 12 Mg 37.8           wt% Pearson et al. 2004 McDonough & Sun 1995
Primitive Mantle 12 Mg 22.17           wt% Palme & O'Neill 2004
Primitive Mantle 12 Mg 22.8   2.28       wt% McDonough & Sun 1995
Primitive Mantle 12 Mg 37.8           wt%ox McDonough & Sun 1995
Primitive Mantle 12 Mg 229060           ppm Wedepohl & Hartmann 1994 Wedepohl 1991
Primitive Mantle 12 Mg   88.8           McDonough 1991 McDonough & Frey 1989
Sun 1982
Primitive Mantle 12 Mg 38.1           wt%ox McDonough & Frey 1989 Ringwood 1979
Primitive Mantle 12 Mg 89.5           wt%ox McDonough & Frey 1989 Ringwood 1979
Primitive Mantle 12 Mg 38           wt%ox McDonough & Frey 1989 Sun 1982
Primitive Mantle 12 Mg 89.2             McDonough & Frey 1989 Sun 1982
Primitive Mantle 12 Mg 36.85           wt%ox McDonough & Frey 1989 Wanke et al. 1984
Primitive Mantle 12 Mg 89.6             McDonough & Frey 1989 Wanke et al. 1984
Primitive Mantle 12 Mg 37.78           wt%ox McDonough & Frey 1989 Hart & Zindler 1986
Primitive Mantle 12 Mg 89.9             McDonough & Frey 1989 Hart & Zindler 1986
Primitive Mantle 12 Mg 34.02           wt%ox McDonough & Frey 1989 Anderson 1983
Primitive Mantle 12 Mg 88.5             McDonough & Frey 1989 Anderson 1983
Primitive Mantle 12 Mg 35.5           wt%ox McDonough & Frey 1989 Palme & Nickel 1985
Primitive Mantle 12 Mg 89.1             McDonough & Frey 1989 Palme & Nickel 1985
Primitive Mantle 12 Mg 37.2           wt%ox McDonough 1990 McDonough & Frey 1989
Sun 1982
Primitive Mantle 12 Mg 22.5           wt% McDonough 1990 McDonough & Frey 1989
Sun 1982
Primitive Mantle 12 Mg 37.2           wt%ox McDonough & Frey 1989 McDonough & Sun 1989
Primitive Mantle 12 Mg 89.2             McDonough & Frey 1989 McDonough & Sun 1989
Primitive Mantle 12 Mg 88.8             McDonough 1990 McDonough & Frey 1989
Sun 1982
Primitive Mantle 12 Mg   37.2         wt%ox McDonough 1991 McDonough & Frey 1989
Sun 1982
Primitive Mantle 12 Mg 38.8           wt%ox McDonough & Sun 1995 Green et al. 1979
Primitive Mantle 12 Mg 35.15           wt%ox McDonough & Sun 1995 Taylor & McLennan 1985
Primitive Mantle   Mg# 0.89             Pearson et al. 2004 McDonough & Sun 1995
Primitive Mantle   Mg# 0.89             Pearson et al. 2004 Palme & Nickel 1985
Primitive Mantle   Mg# 0.9             Pearson et al. 2004 Jagoutz et al. 1979
Primitive Mantle   Mg# 0.9             Pearson et al. 2004 Hart & Zindler 1986
Primitive Mantle   Mg# 89             Walter 2004 Palme & O'Neill 2004
Primitive Mantle   Mg# 89.8             Walter 2004 Allegre et al. 1995
Primitive Mantle   Mg/Al 9.7             McDonough & Sun 1995
Primitive Mantle   Mg/Al 10.52   0.1         Allegre et al. 1995
Primitive Mantle   Mg/Si 1.09             Pearson et al. 2004 Jagoutz et al. 1979
Primitive Mantle   Mg/Si 1.09             Pearson et al. 2004 McDonough & Sun 1995
Primitive Mantle   Mg/Si 1.06             Pearson et al. 2004 Hart & Zindler 1986
Primitive Mantle   Mg/Si 0.99             Pearson et al. 2004 Palme & Nickel 1985
Primitive Mantle   MgO/Ni 197             McDonough 1991
Primitive Mantle   MgO/Ni 196             McDonough 1990 McDonough & Frey 1989
Sun & McDonough 1989
Sun 1982
Primitive Mantle   MgO/SiO2 0.82             Walter 2004 Allegre et al. 1995
Primitive Mantle   MgO/SiO2 0.81             Walter 2004 Palme & O'Neill 2004
Primitive Mantle   Si/Mg 0.945   0.002         Allegre et al. 1995
Protolith Gabbros at ODP Site 735 12 Mg 8.83         8 wt%ox Hart et al. 1999
Protolith Gabbros at ODP Site 735   Mg# 62.9         8   Hart et al. 1999
Pyrolites 12 Mg 38.1           wt% Walter 2004 Ringwood 1979
Pyrolites 12 Mg 38.1           wt%ox Allegre et al. 1995 Ringwood 1979
Pyrolites 12 Mg 37.8           wt% Walter 2004 McDougall & Sun 1995
Pyrolites   Mg# 89.2             Walter 2004 McDonough & Sun 1995
Pyrolites   Mg# 89.3             Walter 2004 Ringwood 1979
Pyrolites   MgO/SiO2 0.85             Walter 2004 Ringwood 1979
Pyrolites   MgO/SiO2 0.84             Walter 2004 McDougall & Sun 1995
Pyroxenites 12 Mg 16.04         106 wt%ox Le Maitre 1976
Qingzhen Enstatite Chondrite 12 Mg 125             Grossman et al. 1985
QUE 94201 Meteorite 12 Mg 3.77   0.04         McSween, Jr. 2004 Lodders 1998
Radiolarian Clay 12 Mg 3.37         8 wt%ox Plank & Langmuir 1998
Radiolarian Clay 12 Mg 3.5         11 wt%ox Plank & Langmuir 1998
Radiolarian Clay 12 Mg 2.24         2 wt%ox Plank & Langmuir 1998
Radiolarian Clay 12 Mg 3.37         8 wt%ox Plank & Langmuir 1998
Radiolarites 12 Mg 0.74         4 wt%ox Plank & Langmuir 1998
Radiolarites 12 Mg 0.47           wt%ox Elliot et al. 1997
Radiolarites 12 Mg 1.16         17 wt%ox Plank & Langmuir 1998
REE Fractionated CAI Inclusions 12 Mg 12.8     10.1 16.6 5 wt%ox Martin & Mason 1974
REE Unfractionated CAI Inclusions 12 Mg 14.5     13.6 15.4 2 wt%ox Martin & Mason 1974
Retort Phosphatic Shale Member 12 Mg 0.19         20 wt%ox Gulbrandsen 1966
Rhyodacites 12 Mg 2.09         63 wt%ox Le Maitre 1976
Rhyolites 12 Mg 0.39         554 wt%ox Le Maitre 1976
Rifted Continental Margins 12 Mg 7.7           wt%ox Rudnick & Fountain 1995
Rifted Continental Margins 12 Mg 4.3           wt%ox Rudnick & Fountain 1995
River Particulates 12 Mg 11800           µg/g Martin & Meybeck 1979
Rivers 12 Mg 170             Edmond et al. 1979
Rivers 12 Mg 4100           ppb Li 1982
Ryuku Trench 12 Mg 3.17           wt%ox Plank & Langmuir 1998
Sandstones 12 Mg 0.55           wt%ox Condie 1993
Sandstones 12 Mg 0.45           wt%ox Condie 1993
Sandstones 12 Mg 0.76           wt%ox Condie 1993
Scotia Island Basalt 12 Mg 7.74         41 wt% Kelemen et al. 2004
Scotia Island Basalt   Mg# 63.06         41   Kelemen et al. 2004
Seawater 12 Mg 52.6             Bowers & Taylor 1985
Seawater 12 Mg 1290000           ppb Li 1982
Seawater 12 Mg 53.2             Bruland 1983
Seawater 12 Mg 53             von Glasow & Crutzen 2004 Andrews et al. 1996
Seawater 12 Mg 53000             Broeker & Peng 1982
Seawater 12 Mg 1.28           g/kg Quinby-Hunt & Turekian 1983 Carpenter & Mannella 1973
Seawater 12 Mg 1290000000             Li 1991 Whitfield & Turner 1987
Sediments 12 Mg 3.3           wt%ox Wedepohl 1995 Ronov & Yaroshevskiy 1969
Serra De Mage Eucrite 12 Mg 68.44             Mittlefehldt 2004 Barrat et al. 2000
McCarthy et al. 1973
Shales 12 Mg 3.88           wt%ox Condie 1993
Shales 12 Mg 2.2           wt%ox Condie 1993
Shales 12 Mg 2.3           wt%ox Condie 1993
Shalka Diogenite 12 Mg 155.5             Mittlefehldt 2004 McCarthy et al. 1972
Mittlefehldt 1994
Shallowater Aubrite 12 Mg 201.5             Mittlefehldt 2004 Easton 1985
Keil et al. 1989
Shergotty Meteorite 12 Mg 5.58   0.11         McSween, Jr. 2004 Lodders 1998
Silicate Earth 12 Mg 38.8           wt%ox McDonough & Sun 1995 Green et al. 1979
Silicate Earth 12 Mg 37.8           wt%ox McDonough & Sun 1995
Silicate Earth 12 Mg 22.8           wt% McDonough 1998
Silicate Earth 12 Mg 38.3           wt%ox McDonough & Sun 1995 Jagoutz et al. 1979
Silicate Earth 12 Mg 22.8   2.28       wt% McDonough & Sun 1995
Silicate Earth 12 Mg 35.15           wt%ox McDonough & Sun 1995 Taylor & McLennan 1985
Silicate Earth 12 Mg 22.8           wt% McDonough 2004
Silicate Earth   Mg/Al 9.7             McDonough & Sun 1995
Silicic Precambrian Granulites 12 Mg 1.71         23 wt%ox Shaw et al. 1986
Silicified Limestone 12 Mg 0.65           wt%ox Plank & Langmuir 1998
Silty Mud 12 Mg 2.63         16 wt%ox Plank & Langmuir 1998
Sioux County Eucrite 12 Mg 42.9             Mittlefehldt 2004 Barrat et al. 2000
McCarthy et al. 1973
Solar Corona 12 Mg 7.59   0.03         Anders & Grevesse 1989 Breneman & Stone 1985
Solar Corona 12 Mg 7.59   0.06         Anders & Grevesse 1989
Solar Corona 12 Mg 7.53   0.11         Anders & Grevesse 1989 Meyer 1985
Solar Photosphere 12 Mg 7.58   0.05         Anders & Grevesse 1989
Solar Photosphere 12 Mg 7.54   0.06         Palme & Jones 2004 Holweger 2001
Solar System 12 Mg 1074000   40800     15   Anders & Grevesse 1989
Solar System 12 Mg 1.02             Clayton 2004 Palme & Jones 2004
Solar System 12 Mg 7.56   1.134         Palme & Jones 2004
Solar System 12 Mg 1060000             Anders & Ebihara 1982 Cameron 1982
Solar System 12 Mg 1075000   38700     14   Anders & Ebihara 1982
Solar System 12 Mg 3.7           wt%ox Wedepohl 1995 Le Maitre 1976
Solid Earth 12 Mg 15.4           wt% McDonough 2004
Solid Earth 12 Mg 15.866           wt% Allegre et al. 1995
Solid Earth 12 Mg 15.4           wt% McDonough 2004
Solid Earth 12 Mg 15.4           wt% McDonough 1998
Solid Earth 12 Mg 15.4           wt% McDonough & Sun 1995
Solid Earth   Mg/Al       9.7 9.7     McDonough & Sun 1995
Solid Earth   Mg/Si 0.97             McDonough & Sun 1995
Solid Mars 12 Mg 9   2.6       wt% McSween, Jr. 2004 Hamilton et al. 2001
Wyatt et al. 2001
Solid Mars 12 Mg 8.7   2.6       wt% McSween, Jr. 2004 Hamilton et al. 2001
Wyatt et al. 2001
South African Garnet Peridotites 12 Mg 92             McDonough 1990 Boyd & Mertzman 1987
South African Garnet Peridotites 12 Mg 44.86           wt%ox McDonough 1990 Boyd & Mertzman 1987
South Antilles Trench 12 Mg 2.29           wt%ox Plank & Langmuir 1998
South Margin of North China Craton 12 Mg 2.86           wt%ox Gao et al. 1998
South Margin of North China Craton 12 Mg 3.39           wt%ox Gao et al. 1998
South Margin of North China Craton 12 Mg 3.77           wt%ox Gao et al. 1998
South Margin of North China Craton 12 Mg 3.36           wt%ox Gao et al. 1998
South Margin of North China Craton 12 Mg 3.21           wt%ox Gao et al. 1998
South Qinling Belt in China 12 Mg 2.64           wt%ox Gao et al. 1998
South Qinling Belt in China 12 Mg 3.2           wt%ox Gao et al. 1998
South Qinling Belt in China 12 Mg 3.4           wt%ox Gao et al. 1998
South Qinling Belt in China 12 Mg 2.88           wt%ox Gao et al. 1998
South Sandwich Trench 12 Mg 1.73           wt%ox Plank & Langmuir 1998
Spinel Peridotites 12 Mg 41.4 41.2 3     375 wt%ox McDonough 1990
Spinel Peridotites 12 Mg 90.1             McDonough 1990 Maaloe & Aoki 1975
Spinel Peridotites 12 Mg   41.2         wt%ox McDonough 1991 Maaloe & Aoki 1975
Jordan 1979
Boyd 1989
McDonough 1990
Spinel Peridotites 12 Mg   90           McDonough 1991 Maaloe & Aoki 1975
Jordan 1979
Boyd 1989
McDonough 1990
Spinel Peridotites 12 Mg 42.25           wt%ox McDonough 1990 Maaloe & Aoki 1975
Spinel Peridotites   Mg# 89.8 90 1.1     375   McDonough 1990
Spinel Peridotites   MgO/Ni 191   33         McDonough 1991
Spinel Peridotites   MgO/Ni 190 190 33     308   McDonough 1990
St. Lawrence River Particulates 12 Mg 24500           µg/g Martin & Meybeck 1979
Stannern Eucrite 12 Mg 42             Mittlefehldt 2004 Barrat et al. 2000
McCarthy et al. 1973
Subducted Sediment 12 Mg 2.48   0.16       wt%ox Plank & Langmuir 1998
Sumatra Trench 12 Mg 2.18           wt%ox Plank & Langmuir 1998
Syenites 12 Mg 1.87         436 wt%ox Le Maitre 1976
Talkeetna Arc Plutonic Rocks 12 Mg 3.57   0.017     114 wt% Kelemen et al. 2004
Talkeetna Arc Plutonic Rocks 12 Mg 7.86   0.486     6 wt% Kelemen et al. 2004
Talkeetna Arc Plutonic Rocks 12 Mg 27.95   0.343     17 wt% Kelemen et al. 2004
Talkeetna Arc Plutonic Rocks 12 Mg 7.78   0.027     95 wt% Kelemen et al. 2004
Talkeetna Arc Plutonic Rocks 12 Mg 4.89   0.187     7 wt% Kelemen et al. 2004
Talkeetna Arc Plutonic Rocks 12 Mg 1.67   0.035     28 wt% Kelemen et al. 2004
Talkeetna Arc Plutonic Rocks   Mg# 58   2.8     6   Kelemen et al. 2004
Talkeetna Arc Plutonic Rocks   Mg# 43   0.1     114   Kelemen et al. 2004
Talkeetna Arc Plutonic Rocks   Mg# 43   0.4     28   Kelemen et al. 2004
Talkeetna Arc Plutonic Rocks   Mg# 86   0.2     17   Kelemen et al. 2004
Talkeetna Arc Plutonic Rocks   Mg# 58   0.1     95   Kelemen et al. 2004
Talkeetna Arc Plutonic Rocks   Mg# 45   0.6     7   Kelemen et al. 2004
Tephrites 12 Mg 4.7         84 wt%ox Le Maitre 1976
Tholeiites 12 Mg 7.3         190 wt%ox Le Maitre 1976
Tinguaites 12 Mg 1.07         83 wt%ox Le Maitre 1976
Tonalites 12 Mg 2.6           wt%ox Wedepohl 1995 Wedepohl 1991
Arth et al. 1978
Ermanovics et al. 1979
Tarney et al. 1979
Schermerhorn 1987
Paradis et al. 1988
Pohl & Emmermann 1991
Tepper et al. 1993
Tonalites 12 Mg 2.6           wt%ox Wedepohl 1995
Tonalites 12 Mg 2.8         83 wt%ox Le Maitre 1976
Tonalites-Trondhjemites-Granodiorites 12 Mg 1.18         355 wt% Kemp & Hawkesworth 2004 Martin 1995
Tonalites-Trondhjemites-Granodiorites 12 Mg 1.6           wt%ox Condie 1993
Tonalites-Trondhjemites-Granodiorites 12 Mg 1.1           wt%ox Condie 1993
Tonalites-Trondhjemites-Granodiorites 12 Mg 1.7           wt%ox Condie 1993
Tonalites-Trondhjemites-Granodiorites 12 Mg 2.13         553 wt%ox Gao et al. 1998
Tonalites-Trondhjemites-Granodiorites 12 Mg 1.52         641 wt%ox Gao et al. 1998
Tonalites-Trondhjemites-Granodiorites   Mg# 42.8         355   Kemp & Hawkesworth 2004 Martin 1995
Tonga Trench 12 Mg 2.69           wt%ox Plank & Langmuir 1998
Tongan Basalts 12 Mg 9.39         70 wt% Kelemen et al. 2004
Tongan Basalts   Mg# 65.81         70   Kelemen et al. 2004
Trachyandesites 12 Mg 2.57         223 wt%ox Le Maitre 1976
Trachybasalts 12 Mg 5.17         155 wt%ox Le Maitre 1976
Trachytes 12 Mg 0.93         483 wt%ox Le Maitre 1976
Transitional Mid-Ocean Ridge Basalts 12 Mg 7.39           wt% Klein 2004 Lehnert 2000
Turbidites 12 Mg 3.01         4 wt%ox Plank & Langmuir 1998
Turbidites 12 Mg 2.09         4 wt%ox Plank & Langmuir 1998
Type F Aggregates 12 Mg 11.3           wt%ox Bischoff & Keil 1983 Wark 1979
Ultrabasic Precambrian Granulites 12 Mg 15.53         14 wt%ox Shaw et al. 1986
Upper Continental Crust 12 Mg 2.48   0.35       wt% Rudnick & Gao 2004 see text









Upper Continental Crust 12 Mg 2.4           wt%ox Wedepohl 1995
Upper Continental Crust 12 Mg 2.42           wt%ox Condie 1993
Upper Continental Crust 12 Mg 2.46           wt%ox Condie 1993
Upper Continental Crust 12 Mg 2.3           wt%ox Shaw et al. 1986 Taylor & McLennan 1981
Upper Continental Crust 12 Mg 2.3           wt%ox Weaver & Tarney 1984 Taylor & McLennan 1981
Upper Continental Crust 12 Mg 56.82             Hart et al. 1999 Staudigel et al. 1995
Smith et al. 1995
Hart & Staudigel 1989
Staudigel et al. 1989
Upper Continental Crust 12 Mg 6.66           wt%ox Hart et al. 1999 Staudigel et al. 1995
Smith et al. 1995
Hart & Staudigel 1989
Staudigel et al. 1989
Upper Continental Crust 12 Mg 1.33           wt% Taylor & McLennan 1995
Upper Continental Crust 12 Mg 13510           ppm Wedepohl 1995
Upper Continental Crust 12 Mg 2.2           wt% Rudnick & Gao 2004 Taylor & McLennan 1985
Upper Continental Crust 12 Mg 2.3           wt% Rudnick & Gao 2004 Shaw et al. 1967
Upper Continental Crust 12 Mg 3.47           wt% Rudnick & Gao 2004 Goldschmidt 1933
Upper Continental Crust 12 Mg 2.1           wt% Rudnick & Gao 2004 Borodin 1998
Upper Continental Crust 12 Mg 2.48           wt% Rudnick & Gao 2004
Upper Continental Crust 12 Mg 2.62           wt% Rudnick & Gao 2004 Gao et al. 1998
Upper Continental Crust 12 Mg 3.01           wt% Rudnick & Gao 2004 Ronov & Yaroshevskiy 1976
Upper Continental Crust 12 Mg 2.2           wt% Rudnick & Gao 2004 Fahrig & Eade 1968
Upper Continental Crust 12 Mg 4.59           wt% Rudnick & Gao 2004 Clarke 1889
Upper Continental Crust 12 Mg 3.56           wt% Rudnick & Gao 2004 Clarke & Washington 1924
Upper Continental Crust 12 Mg 2.45           wt% Rudnick & Gao 2004 Condie 1993
Upper Continental Crust 12 Mg 2.3           wt% Rudnick & Gao 2004 Wedepohl 1995
Upper Continental Crust 12 Mg 2.48           wt% Kemp & Hawkesworth 2004 Rudnick & Gao 2004
Upper Continental Crust   Mg# 47.4             Rudnick & Gao 2004 Fahrig & Eade 1968
Upper Continental Crust   Mg# 46.9             Rudnick & Gao 2004 Goldschmidt 1933
Upper Continental Crust   Mg# 47.9             Rudnick & Gao 2004 Condie 1993
Upper Continental Crust   Mg# 46.7             Kemp & Hawkesworth 2004 Rudnick & Gao 2004
Upper Continental Crust   Mg# 46.7             Rudnick & Gao 2004
Upper Continental Crust   Mg# 50.1             Rudnick & Gao 2004 Shaw et al. 1967
Upper Continental Crust   Mg# 48.7             Rudnick & Gao 2004 Goldschmidt 1933
Upper Continental Crust   Mg# 50.1             Rudnick & Gao 2004 Wedepohl 1995
Upper Continental Crust   Mg# 53             Rudnick & Gao 2004 Clarke & Washington 1924
Upper Continental Crust   Mg# 46.7             Rudnick & Gao 2004 Gao et al. 1998
Upper Continental Crust   Mg# 4             Rudnick & Gao 2004 Borodin 1998
Upper Continental Crust   Mg# 46.6             Rudnick & Gao 2004 Taylor & McLennan 1985
Upper Continental Crust   Mg# 48.1             Rudnick & Gao 2004 Ronov & Yaroshevskiy 1976
Ureilite Primitive Achondrites 12 Mg       36.7 39.2   wt%ox Boynton et al. 1976 Mason 1971
Ureilite Rock Metal   Si/Mg 0.9         5   Janssens et al. 1987
Ureilite Vein Metal   Si/Mg 2.3         5   Janssens et al. 1987
Vanuatu Trench 12 Mg 2.84           wt%ox Plank & Langmuir 1998
Vega 2 12 Mg 11.5   3.7       wt% Fegley, Jr. 2004 Surkov et al. 1986
Venera 13 Rocks 12 Mg 11.4   6.2       wt% Fegley, Jr. 2004 Surkov et al. 1984
Venera 14 Rocks 12 Mg 8.1   3.3       wt% Fegley, Jr. 2004 Surkov et al. 1984
Venus Mantle 12 Mg 33.3           wt% Fegley, Jr. 2004 Lodders & Fegley 1998
Venus Mantle 12 Mg 37.6           wt% Fegley, Jr. 2004 Lodders & Fegley 1998
Venus Mantle 12 Mg 35.5           wt% Fegley, Jr. 2004 Morgan & Anders 1980
Lodders & Fegley 1998
Venus N-MORB 12 Mg 9.67           wt% Fegley, Jr. 2004 Wilson 1989
Veramin Mesosiderite 12 Mg 136.3             Mittlefehldt 2004 Mittlefehldt in press
Powell 1971
Volcanoclastic Sediment 12 Mg 2.93         15 wt%ox Plank & Langmuir 1998
Volcanoclastic Turbidites 12 Mg 8.72         43 wt%ox Plank & Langmuir 1998
Volcanoclastic Turbidites 12 Mg 5.31           wt%ox Elliot et al. 1997
Volcanoclastic Turbidites 12 Mg 6.25         13 wt%ox Plank & Langmuir 1998
Watson IIE Iron 12 Mg 189.4             Mittlefehldt 2004 Olsen et al. 1994
Websterites 12 Mg 19.15         199 wt%ox Le Maitre 1976
Winonaite Pontlyfni 12 Mg 119.2             Mittlefehldt 2004 Graham et al. 1977
Davis et al. 1977
Winonaite Tierra Blanca 12 Mg 147             Mittlefehldt 2004 Kallemeyn & Wasson 1985
Jarosweich 1990
Xenolites 12 Mg 38.3           wt% Walter 2004 Jagoutz et al. 1979
Xenolites   Mg# 89.6             Walter 2004 Jagoutz et al. 1979
Xenolites   MgO/SiO2 0.85             Walter 2004 Jagoutz et al. 1979
Y-74450 Eucrites 12 Mg 45.7             Mittlefehldt 2004 Wanke et al. 1977
Y-791491 Lodranite 12 Mg 212             Mittlefehldt 2004 Weigel et al. 1999
Yangtze Craton 12 Mg 2.77           wt%ox Gao et al. 1998
Yangtze Craton 12 Mg 2.7           wt%ox Gao et al. 1998
Yangtze Craton 12 Mg 2.32           wt%ox Gao et al. 1998
Yangtze Craton 12 Mg 3.82           wt%ox Gao et al. 1998
Yangtze Craton 12 Mg 3.42           wt%ox Gao et al. 1998
Zeolite Clay 12 Mg 2.02         3 wt%ox Plank & Langmuir 1998
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