GERM Reservoir Database
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	GERM Database Search Results   Save as ... ================== Excel spreadsheet Tab delimited text file   Sort by ... =========== Reservoir Z Element Value Median SD Low High N Unit Reference =========== Default   Units ... ======= ppm ppb ppt wt% wt%ox ======= Default   Reservoir Z Element Value Median SD Low High N Unit Info Reference Source(s) Comet Halley 12 Mg -7.58             Anders & Grevesse 1989 Delsemme 1988 Comet Halley 12 Mg -7.58             Anders & Grevesse 1989 Jessberger et al. 1988 CI Chondrites   Si/Mg 0.014             Grossman & Wasson 1985 Kallemeyn & Wasson 1984 Chondrule Silicates   Si/Mg 0.03             Grossman & Wasson 1985 Pallasite Olivine   Si/Mg 0.06             Grossman & Wasson 1985 Scott 1977 Enstatite Chondrites   Al/Mg 0.075   0.003         McDonough & Sun 1995 Ordinary Chondrites   Al/Mg 0.081   0.002         McDonough & Sun 1995 CI Chondrites   Al/Mg 0.0891             McDonough & Sun 1995 Carbonaceous Chondrites   Al/Mg 0.105   0.01         McDonough & Sun 1995 Australian Granite 12 Mg 0.12         6 wt% Kemp & Hawkesworth 2004 Turner et al. 1992 Carbonaceous Chondrites   Mg/V 0.157   0.009         McDonough & Sun 1995 Australian Granite 12 Mg 0.17         13 wt% Kemp & Hawkesworth 2004 Inger & Harris 1993 CI Chondrites   Mg/V 0.172             McDonough & Sun 1995 Retort Phosphatic Shale Member 12 Mg 0.19         20 wt%ox Gulbrandsen 1966 Ordinary Chondrites   Mg/V 0.195   0.006         McDonough & Sun 1995 Enstatite Chondrites   Mg/V 0.204   0.025         McDonough & Sun 1995 Primitive Mantle   Fe/Mg 0.255   0.005         Allegre et al. 1995 Granites 12 Mg 0.29         8 wt% Kemp & Hawkesworth 2004 Kemp 2001 Phosphoria Formation 12 Mg 0.3         61 wt%ox Gulbrandsen 1966 Mead Peak Phosphatic Shale Member 12 Mg 0.36         41 wt%ox Gulbrandsen 1966 Granites 12 Mg 0.37           wt%ox Condie 1993 Rhyolites 12 Mg 0.39         554 wt%ox Le Maitre 1976 Australian Granite 12 Mg 0.4           wt% Kemp & Hawkesworth 2004 Collins et al. 1982 Felsic Volcanics 12 Mg 0.4           wt%ox Condie 1993 Granites 12 Mg 0.4           wt%ox Condie 1993 Granites 12 Mg 0.42           wt%ox Condie 1993 Interlayerd Clay & Chert 12 Mg 0.44         2 wt%ox Plank & Langmuir 1998 Sandstones 12 Mg 0.45           wt%ox Condie 1993 Radiolarites 12 Mg 0.47           wt%ox Elliot et al. 1997 Peninsular Range Batholith 12 Mg 0.48           wt% Kemp & Hawkesworth 2004 Sylvester 1995 Felsic Volcanics 12 Mg 0.5           wt%ox Condie 1993 Felsic Volcanics 12 Mg 0.5           wt%ox Condie 1993 Colombia Trench 12 Mg 0.55           wt%ox Plank & Langmuir 1998 Sandstones 12 Mg 0.55           wt%ox Condie 1993 Granites 12 Mg 0.57           wt%ox Wedepohl 1995 Whalen et al. 1987 Felsic Volcanics 12 Mg 0.6           wt%ox Condie 1993 Granites 12 Mg 0.62         1226 wt%ox Gao et al. 1998 Silicified Limestone 12 Mg 0.65           wt%ox Plank & Langmuir 1998 Chert 12 Mg 0.7         4 wt%ox Plank & Langmuir 1998 Enstatite Chondrites   Mg/Si 0.7   0.07         McDonough & Sun 1995 Halley Comet Tail   N/Mg 0.7             Brownlee 2004 Grun & Jessberger 1990 Granites 12 Mg 0.71         2236 wt%ox Le Maitre 1976 Felsic Volcanics 12 Mg 0.74           wt%ox Condie 1993 Kamchatka Trench 12 Mg 0.74           wt%ox Plank & Langmuir 1998 Radiolarites 12 Mg 0.74         4 wt%ox Plank & Langmuir 1998 Sandstones 12 Mg 0.76           wt%ox Condie 1993 Nepheline Syenites 12 Mg 0.77         108 wt%ox Le Maitre 1976 Felsic Volcanics 12 Mg 0.81           wt%ox Condie 1993 Interlayered Chert & Limestone 12 Mg 0.81         5 wt%ox Plank & Langmuir 1998 Ordinary Chondrites   Mg/Si 0.81   0.03         McDonough & Sun 1995 Primitive Mantle   MgO/SiO2 0.81             Walter 2004 Palme & O'Neill 2004 Low Si-Mg Mantle   MgO/SiO2 0.82             Walter 2004 Hart & Zindler 1986 Primitive Mantle   MgO/SiO2 0.82             Walter 2004 Allegre et al. 1995 Chondritic Smooth Interplanetary Dust Particles 12 Mg 0.824             Bradley 2004 Schramm et al. 1989 Granites 12 Mg 0.84           wt% Kemp & Hawkesworth 2004 Sylvester 1995 Pyrolites   MgO/SiO2 0.84             Walter 2004 McDougall & Sun 1995 Periodotite Massifs   MgO/SiO2 0.85             Walter 2004 Bonatti et al. 1986 Pyrolites   MgO/SiO2 0.85             Walter 2004 Ringwood 1979 Xenolites   MgO/SiO2 0.85             Walter 2004 Jagoutz et al. 1979 Chert 12 Mg 0.86           wt%ox Elliot et al. 1997 Mantle   MgO/SiO2 0.86             Walter 2004 Primitive Mantle   Mg# 0.89             Pearson et al. 2004 Palme & Nickel 1985 Primitive Mantle   Mg# 0.89             Pearson et al. 2004 McDonough & Sun 1995 Continental Arc Xenoliths   Mg# 0.895 0.898 0.018     28   Pearson et al. 2004 Oceanic Island Xenoliths   Mg# 0.895 0.908 0.022     16   Pearson et al. 2004 Continental Intraplate Xenoliths   Mg# 0.899 0.9 0.014     273   Pearson et al. 2004 Chert 12 Mg 0.9         4 wt%ox Plank & Langmuir 1998 Mantle Xenoliths   Mg# 0.9             Pearson et al. 2004 McDonough 1990 Primitive Mantle   Mg# 0.9             Pearson et al. 2004 Hart & Zindler 1986 Primitive Mantle   Mg# 0.9             Pearson et al. 2004 Jagoutz et al. 1979 Ureilite Rock Metal   Si/Mg 0.9         5   Janssens et al. 1987 Continental Rift Xenoliths   Mg# 0.902 0.903 0.008     23   Pearson et al. 2004 Ocean Arc Xenoliths   Mg# 0.905 0.906 0.007     21   Pearson et al. 2004 CI Chondrites   Mg/Si 0.906             McDonough & Sun 1995 Carbonaceous Chondrites   Mg/Si 0.91   0.04         McDonough & Sun 1995 Cratonic Xenoliths   Mg# 0.919 0.921 0.014     232   Pearson et al. 2004 CI Chondrites 12 Mg 0.92             Bradley 2004 McSween & Richardson 1977 Izu-Bonin Trench 12 Mg 0.92           wt%ox Plank & Langmuir 1998 L Ordinary Chondrites 12 Mg 0.928             Bradley 2004 Jarosewich 1990 Trachytes 12 Mg 0.93         483 wt%ox Le Maitre 1976 Primitive Mantle   Si/Mg 0.945   0.002         Allegre et al. 1995 CM Chondrites 12 Mg 0.957             Bradley 2004 McSween & Richardson 1977 Solid Earth   Mg/Si 0.97             McDonough & Sun 1995 Interplanetary Dust Particles 12 Mg 0.98             Bradley 2004 Schramm et al. 1989 Felsic Volcanics 12 Mg 0.99           wt%ox Condie 1993 Primitive Mantle   Mg/Si 0.99             Pearson et al. 2004 Palme & Nickel 1985 Core 12 Mg 0           wt% McDonough 2004 Core 12 Mg 0           wt% McDonough 1998 Chondritic Porous Interplanetary Dust Particles 12 Mg 1.015             Bradley 2004 Schramm et al. 1989 Inner Blake Plateau Phosphorites 12 Mg 1.02           wt%ox Manheim et al. 1980 Solar System 12 Mg 1.02             Clayton 2004 Palme & Jones 2004 CM Chondrites 12 Mg 1.023             Bradley 2004 Jarosewich 1990 CI Chondrites 12 Mg 1.04             Bradley 2004 Palme & Jones 2004 Granites 12 Mg 1.06         402 wt%ox Gao et al. 1998 Primitive Mantle   Mg/Si 1.06             Pearson et al. 2004 Hart & Zindler 1986 Phonolites 12 Mg 1.07         320 wt%ox Le Maitre 1976 Tinguaites 12 Mg 1.07         83 wt%ox Le Maitre 1976 Primitive Mantle   Mg/Si 1.09             Pearson et al. 2004 McDonough & Sun 1995 Primitive Mantle   Mg/Si 1.09             Pearson et al. 2004 Jagoutz et al. 1979 Felsic Archean Granulites 12 Mg 1.1 0.88       378 wt%ox Rudnick & Fountain 1995 Tonalites-Trondhjemites-Granodiorites 12 Mg 1.1           wt%ox Condie 1993 Ademellites 12 Mg 1.14         113 wt%ox Le Maitre 1976 Radiolarites 12 Mg 1.16         17 wt%ox Plank & Langmuir 1998 Continental Intraplate Xenoliths   Mg/Si 1.17 1.2 0.26     273   Pearson et al. 2004 Tonalites-Trondhjemites-Granodiorites 12 Mg 1.18         355 wt% Kemp & Hawkesworth 2004 Martin 1995 Continental Rift Xenoliths   Mg/Si 1.19 1.19 0.11     23   Pearson et al. 2004 Continental Arc Xenoliths   Mg/Si 1.2 1.17 0.1     28   Pearson et al. 2004 Northern Blake Plateau Phosphorites 12 Mg 1.2         8 wt%ox Manheim et al. 1980 Coarse Interplanetary Dust Particles 12 Mg 1.203             Bradley 2004 Schramm et al. 1989 Mantle Xenoliths   Mg/Si 1.21             Pearson et al. 2004 McDonough 1990 Australian Granite 12 Mg 1.24         704 wt% Kemp & Hawkesworth 2004 Chappell & White 1992 Middle Continental Crust 12 Mg 1.27           wt% Rudnick & Gao 2004 Shaw et al. 1994 Seawater 12 Mg 1.28           g/kg Quinby-Hunt & Turekian 1983 Carpenter & Mannella 1973 Oceans Surface water 12 Mg 1.284           g/kg Quinby-Hunt & Turekian 1983 Carpenter & Mannella 1973 Australian Granite 12 Mg 1.29         8 wt% Kemp & Hawkesworth 2004 Whalen 1985 Felsic Post-Archean Granulites 12 Mg 1.3 1.2       223 wt%ox Rudnick & Fountain 1995 Ocean Arc Xenoliths   Mg/Si 1.3 1.29 0.09     21   Pearson et al. 2004 Carbonate 12 Mg 1.31         13 wt%ox Plank & Langmuir 1998 Oceanic Island Xenoliths   Mg/Si 1.31 1.3 0.11     16   Pearson et al. 2004 Upper Continental Crust 12 Mg 1.33           wt% Taylor & McLennan 1995 Lujavrites 12 Mg 1.35         76 wt%ox Le Maitre 1976 Felsic Volcanics 12 Mg 1.36         972 wt%ox Gao et al. 1998 Archean Canadian Shield 12 Mg 1.38           wt%ox Shaw et al. 1986 Cameron et al. 1979 Arenaceous Rocks 12 Mg 1.38         2754 wt%ox Gao et al. 1998 Australian Granite 12 Mg 1.38         1074 wt% Kemp & Hawkesworth 2004 Wormald & Price 1988 Cratonic Xenoliths   Mg/Si 1.38 1.39 0.11     232   Pearson et al. 2004 Archean Amphibolites 12 Mg 1.4           wt%ox Weaver & Tarney 1984 Weaver & Tarney 1981 Ordinary Chondrites   Fe/Mg 1.4   0.1         McDonough & Sun 1995 Middle Continental Crust 12 Mg 1.43           wt% Rudnick & Gao 2004 Weaver & Tarney 1984 Mars Rocks 12 Mg 1.51   0.151       wt% McSween, Jr. 2004 Wanke et al. 2001 Central America Trench 12 Mg 1.52           wt%ox Plank & Langmuir 1998 Tonalites-Trondhjemites-Granodiorites 12 Mg 1.52         641 wt%ox Gao et al. 1998 Nano Ooze 12 Mg 1.59         4 wt%ox Plank & Langmuir 1998 Enstatite Chondrites   Fe/Mg 1.6   0.2         McDonough & Sun 1995 Tonalites-Trondhjemites-Granodiorites 12 Mg 1.6           wt%ox Condie 1993 Ferruginous Clay 12 Mg 1.61         2 wt%ox Plank & Langmuir 1998 Japan Trench 12 Mg 1.67           wt%ox Plank & Langmuir 1998 Kuriles Trench 12 Mg 1.67           wt%ox Plank & Langmuir 1998 Talkeetna Arc Plutonic Rocks 12 Mg 1.67   0.035     28 wt% Kelemen et al. 2004 Carbonaceous Chondrites   Fe/Mg 1.68   0.12         McDonough & Sun 1995 Tonalites-Trondhjemites-Granodiorites 12 Mg 1.7           wt%ox Condie 1993 Silicic Precambrian Granulites 12 Mg 1.71         23 wt%ox Shaw et al. 1986 Diatom Oozes & Clay 12 Mg 1.73         15 wt%ox Plank & Langmuir 1998 South Sandwich Trench 12 Mg 1.73           wt%ox Plank & Langmuir 1998 Granodiorites 12 Mg 1.74         723 wt%ox Le Maitre 1976 Granodiorites 12 Mg 1.74           wt%ox Wedepohl 1995 Le Maitre 1976 Dacites 12 Mg 1.78         578 wt%ox Le Maitre 1976 Peru Trench 12 Mg 1.81           wt%ox Plank & Langmuir 1998 Late Proterozoic Upper Crust 12 Mg 1.82           wt%ox Condie 1993 Middle Proterozoic Upper Crust 12 Mg 1.87           wt%ox Condie 1993 Syenites 12 Mg 1.87         436 wt%ox Le Maitre 1976 CI Chondrites   Fe/Mg 1.88             McDonough & Sun 1995 Ordinary Chondrites   Fe/Mg 1.9   0.1         McDonough & Sun 1995 Mesozoic & Cenozoic Upper Crust 12 Mg 1.94           wt%ox Condie 1993 Early Proterozoic Upper Crust 12 Mg 1.95           wt%ox Condie 1993 Andaman Trench 12 Mg 1.96           wt%ox Plank & Langmuir 1998 Paleozoic Upper Crust 12 Mg 1.96           wt%ox Condie 1993 Pelites 12 Mg 1.97         1341 wt%ox Gao et al. 1998 Ca-Al-rich Inclusions 12 Mg 10           wt%ox Bischoff & Keil 1983 CO Chondrites 12 Mg 10.1   3     6 wt% Scott & Krot 2004 Brearley 1993 Greshake 1997 Primitive Mantle   Mg/Al 10.52   0.1         Allegre et al. 1995 Greater Antilles Basalt 12 Mg 10.57         21 wt% Kelemen et al. 2004 Carbonates 12 Mg 10.58         2038 wt%ox Gao et al. 1998 Central American Basalts 12 Mg 10.63         78 wt% Kelemen et al. 2004 Nepheline Leucite Basalts 12 Mg 10.63         70 wt%ox Le Maitre 1976 Boninites 12 Mg 10.64         348 wt% Kelemen et al. 2004 Mercury Crustal Silicates 12 Mg 10.8           wt% Taylor & Scott 2004 Morgan & Anders 1980 Luzon Basalt 12 Mg 10.86         24 wt% Kelemen et al. 2004 Estherville Mesosiderite 12 Mg 102.4             Mittlefehldt 2004 Mittlefehldt in press Simpson & Ahrens 1977 Colorado River Particulates 12 Mg 10400           µg/g Martin & Meybeck 1979 Orgueil Chondrite 12 Mg 105             Grossman et al. 1985 Solar System 12 Mg 1060000             Anders & Ebihara 1982 Cameron 1982 Binda Eucrite 12 Mg 107             Mittlefehldt 2004 Barrat et al. 2000 McCarthy et al. 1973 Solar System 12 Mg 1074000   40800     15   Anders & Grevesse 1989 Solar System 12 Mg 1075000   38700     14   Anders & Ebihara 1982 Parana River Particulates 12 Mg 10900           µg/g Martin & Meybeck 1979 Basalts 12 Mg 11.3         8 wt% Farmer 2004 Zhang & O'Reilly 1997 Halley Comet Tail   C/Mg 11.3             Brownlee 2004 Grun & Jessberger 1990 Halley Comet Tail   C/Mg 11.3             Brownlee 2004 Huebner 2002 Type F Aggregates 12 Mg 11.3           wt%ox Bischoff & Keil 1983 Wark 1979 New Hebrides Islands 12 Mg 11.33         65 wt% Kelemen et al. 2004 Venera 13 Rocks 12 Mg 11.4   6.2       wt% Fegley, Jr. 2004 Surkov et al. 1984 Vega 2 12 Mg 11.5   3.7       wt% Fegley, Jr. 2004 Surkov et al. 1986 Ca-Al-rich Inclusions 12 Mg 11.82           wt%ox Bischoff & Keil 1983 McSween 1977 Basalts 12 Mg 11.9         27 wt% Farmer 2004 Farmer et al. 2002 Amazon River Particulates 12 Mg 11200           µg/g Martin & Meybeck 1979 Angrite LEW 87051 12 Mg 117             Mittlefehldt 2004 Mittlefehldt & Lindstrom 1990 River Particulates 12 Mg 11800           µg/g Martin & Meybeck 1979 Winonaite Pontlyfni 12 Mg 119.2             Mittlefehldt 2004 Graham et al. 1977 Davis et al. 1977 Halley Comet Tail   C/Mg 12             Brownlee 2004 Geiss 1988 Carbonates 12 Mg 12.79   0.26     162 wt%ox Mirota & Veizer 1994 REE Fractionated CAI Inclusions 12 Mg 12.8     10.1 16.6 5 wt%ox Martin & Mason 1974 Mincy Mesosiderite 12 Mg 124             Mittlefehldt 2004 Mittlefehldt in press Simpson & Ahrens 1977 Ganges River Particulates 12 Mg 12400           µg/g Martin & Meybeck 1979 Qingzhen Enstatite Chondrite 12 Mg 125             Grossman et al. 1985 Frankfort Howardites 12 Mg 126.3             Mittlefehldt 2004 McCarthy et al. 1972 Palme et al. 1978 Seawater 12 Mg 1290000           ppb Li 1982 Seawater 12 Mg 1290000000             Li 1991 Whitfield & Turner 1987 Phanerozoic Flood Basalts 12 Mg 13         7 wt% Farmer 2004 Wooden et al. 1993 Earth 12 Mg 13.2           ppm Morgan et al. 1978 Ganapathy & Anders 1974 Cratonic Peridotite 12 Mg 13.4           wt% Pearson et al. 2004 Canil & O'Neill 1996 Lesser Antilles Basalt 12 Mg 13.69         84 wt% Kelemen et al. 2004 Mekong River Particulates 12 Mg 13500           µg/g Martin & Meybeck 1979 Upper Continental Crust 12 Mg 13510           ppm Wedepohl 1995 Veramin Mesosiderite 12 Mg 136.3             Mittlefehldt 2004 Mittlefehldt in press Powell 1971 H Ordinary Chondrites 12 Mg 14.3           ppm Morgan et al. 1978 Mason 1965 CI Chondrites   MgO/Ni 14.5             McDonough 1990 McDonough & Frey 1989 Sun & McDonough 1989 Sun 1982 REE Unfractionated CAI Inclusions 12 Mg 14.5     13.6 15.4 2 wt%ox Martin & Mason 1974 Carbonates 12 Mg 14.89         50 wt%ox Gao et al. 1998 Winonaite Tierra Blanca 12 Mg 147             Mittlefehldt 2004 Kallemeyn & Wasson 1985 Jarosweich 1990 Eucrites 12 Mg 15           ppm Morgan et al. 1978 Halley Comet Tail   O/Mg 15             Brownlee 2004 Grun & Jessberger 1990 ALH 84001 Meteorite 12 Mg 15.1   0.5         McSween, Jr. 2004 Lodders 1998 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 Basalts 12 Mg 15.3         10 wt% Farmer 2004 Chung et al. 2001 Continental Intraplate Peridotite 12 Mg 15.3           wt% Pearson et al. 2004 Canil & O'Neill 1996 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 12 Mg 15.4           wt% McDonough 2004 Continental Intraplate Peridotite 12 Mg 15.41           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 15.52           wt% Pearson et al. 2004 Ionov 1996 Ultrabasic Precambrian Granulites 12 Mg 15.53         14 wt%ox Shaw et al. 1986 CO Chondrites 12 Mg 15.8   0.8     106 wt% Scott & Krot 2004 Brearley 1993 Greshake 1997 Solid Earth 12 Mg 15.866           wt% Allegre et al. 1995 Marine Shales 12 Mg 15000           ppm Li 1991 Turekian & Wedepohl 1961 IAB Landes 12 Mg 153             Mittlefehldt 2004 Bild 1977 Johnstown Diogenite 12 Mg 153.6             Mittlefehldt 2004 Wanke et al. 1977 Acapulcoite Primitive Achondrites 12 Mg 153.8             Mittlefehldt 2004 Yanai & Kojima 1991 Zipfel et al. 1995 Shalka Diogenite 12 Mg 155.5             Mittlefehldt 2004 McCarthy et al. 1972 Mittlefehldt 1994 ALHA77081 Acapulcoite 12 Mg 157             Mittlefehldt 2004 Schultz et al. 1982 IAB Campo del Cielo 12 Mg 159             Mittlefehldt 2004 Bild 1977 Continental Intraplate Peridotite 12 Mg 16.02           wt% Pearson et al. 2004 Zipfel & Worner 1992 Pyroxenites 12 Mg 16.04         106 wt%ox Le Maitre 1976 Ocean Island Peridotite 12 Mg 16.05           wt% Pearson et al. 2004 Sen 1988 Continental Intraplate Peridotite 12 Mg 16.08           wt% Pearson et al. 2004 Ionov 1996 Depleted MORB Mantle Clinopyroxene 12 Mg 16.19           wt% Workman & Hart 2005 Cratonic Peridotite 12 Mg 16.2           wt% Pearson et al. 2004 Canil & O'Neill 1996 Chondrules 12 Mg 16.6           wt%ox Bischoff & Keil 1983 Ocean Island Peridotite 12 Mg 16.61           wt% Pearson et al. 2004 Sen 1988 CO Chondrites 12 Mg 16.7   1.5     36 wt% Scott & Krot 2004 Brearley 1993 Greshake 1997 Manganese Nodules 12 Mg 16000           ppm Li 1991 Baturin 1988 ALH 77005 Meteorite 12 Mg 17   0.8         McSween, Jr. 2004 Lodders 1998 Ocean Island Peridotite 12 Mg 17.04           wt% Pearson et al. 2004 Sen 1988 Cratonic Peridotite 12 Mg 17.3           wt% Pearson et al. 2004 Canil & O'Neill 1996 Moon 12 Mg 17.4           ppm Morgan et al. 1978 Ganapathy & Anders 1974 Rivers 12 Mg 170             Edmond et al. 1979 Garonne River Particulates 12 Mg 17300           µg/g Martin & Meybeck 1979 Halley Comet Tail   O/Mg 18.5             Brownlee 2004 Huebner 2002 Continental Intraplate Peridotite 12 Mg 18.55           wt% Pearson et al. 2004 Ionov 1996 Mercury Crustal Silicates 12 Mg 18.9           wt% Taylor & Scott 2004 Krot et al. 2001 Continental Intraplate Peridotite 12 Mg 18.92           wt% Pearson et al. 2004 Ionov 1996 ALH 84025 Brachinite 12 Mg 184             Mittlefehldt 2004 Warren & Kallemeyn 1989a Nile River Particulates 12 Mg 18500           µg/g Martin & Meybeck 1979 Gibson Lodranite 12 Mg 188             Mittlefehldt 2004 Weigel et al. 1999 Watson IIE Iron 12 Mg 189.4             Mittlefehldt 2004 Olsen et al. 1994 Ocean Island Peridotite 12 Mg 19.03           wt% Pearson et al. 2004 Sen 1988 Mercury Crustal Silicates 12 Mg 19.1           wt% Taylor & Scott 2004 Websterites 12 Mg 19.15         199 wt%ox Le Maitre 1976 Chassigny Meteorite 12 Mg 19.2   0.5         McSween, Jr. 2004 Lodders 1998 Depleted MORB Mantle Spinel 12 Mg 19.27           wt% Workman & Hart 2005 Australian Granite   Mg# 19.5             Kemp & Hawkesworth 2004 Collins et al. 1982 Cratonic Peridotite 12 Mg 19.9           wt% Pearson et al. 2004 Canil & O'Neill 1996 Spinel Peridotites   MgO/Ni 190 190 33     308   McDonough 1990 Spinel Peridotites   MgO/Ni 191   33         McDonough 1991 Periodotite Section in Ophiolites   MgO/Ni 196   17         McDonough 1991 Primitive Mantle   MgO/Ni 196             McDonough 1990 McDonough & Frey 1989 Sun & McDonough 1989 Sun 1982 IAB Udei Station 12 Mg 197             Mittlefehldt 2004 Kallemeyn & Wasson 1985 Primitive Mantle   MgO/Ni 197             McDonough 1991 Garnet Peridotites   MgO/Ni 199   44         McDonough 1991 Graywackes 12 Mg 2           wt%ox Condie 1993 Arenaceous Rocks 12 Mg 2.01         121 wt%ox Gao et al. 1998 Monzonites 12 Mg 2.02         252 wt%ox Le Maitre 1976 Zeolite Clay 12 Mg 2.02         3 wt%ox Plank & Langmuir 1998 Late Proterozoic Upper Crust 12 Mg 2.07           wt%ox Condie 1993 Rhyodacites 12 Mg 2.09         63 wt%ox Le Maitre 1976 Turbidites 12 Mg 2.09         4 wt%ox Plank & Langmuir 1998 Graywackes 12 Mg 2.1           wt%ox Condie 1993 Graywackes 12 Mg 2.1           wt%ox Condie 1993 Post-Archean Terrrains 12 Mg 2.1           wt%ox Shaw et al. 1986 Eade & Fahrig 1971 Upper Continental Crust 12 Mg 2.1           wt% Rudnick & Gao 2004 Borodin 1998 Island Arcs 12 Mg 2.11           wt% Taylor & McLennan 1995 Anorthosites 12 Mg 2.12         97 wt%ox Le Maitre 1976 Tonalites-Trondhjemites-Granodiorites 12 Mg 2.13         553 wt%ox Gao et al. 1998 Middle Proterozoic Upper Crust 12 Mg 2.14           wt%ox Condie 1993 Island Arcs 12 Mg 2.15         323 wt% Kemp & Hawkesworth 2004 Silver & Chappell 1998 Diatome Ooze 12 Mg 2.18         4 wt%ox Plank & Langmuir 1998 Sumatra Trench 12 Mg 2.18           wt%ox Plank & Langmuir 1998 Archean Canadian Shield 12 Mg 2.2           wt%ox Shaw et al. 1986 Goodwin 1978 Continental Crust 12 Mg 2.2           wt% Wedepohl 1995 Diatome Clay 12 Mg 2.2         6 wt%ox Plank & Langmuir 1998 Diatome Mud 12 Mg 2.2         6 wt%ox Plank & Langmuir 1998 Graywackes 12 Mg 2.2           wt%ox Condie 1993 Shales 12 Mg 2.2           wt%ox Condie 1993 Upper Continental Crust 12 Mg 2.2           wt% Rudnick & Gao 2004 Taylor & McLennan 1985 Upper Continental Crust 12 Mg 2.2           wt% Rudnick & Gao 2004 Fahrig & Eade 1968 Mesozoic & Cenozoic Upper Crust 12 Mg 2.21           wt%ox Condie 1993 Latites 12 Mg 2.22         146 wt%ox Le Maitre 1976 Nankai Trench 12 Mg 2.22           wt%ox Plank & Langmuir 1998 Pelagic Clay 12 Mg 2.22         55 wt%ox Plank & Langmuir 1998 Early Proterozoic Upper Crust 12 Mg 2.23           wt%ox Condie 1993 Metafelsic Volcanics 12 Mg 2.23         41 wt%ox Gao et al. 1998 Paleozoic Upper Crust 12 Mg 2.24           wt%ox Condie 1993 Precambrian Canadian Shield 12 Mg 2.24           wt%ox Shaw et al. 1986 Radiolarian Clay 12 Mg 2.24         2 wt%ox Plank & Langmuir 1998 South Antilles Trench 12 Mg 2.29           wt%ox Plank & Langmuir 1998 Archean Canadian Shield 12 Mg 2.3           wt%ox Shaw et al. 1986 Eade & Fahrig 1971 Greywackes 12 Mg 2.3           wt%ox Wedepohl 1995 Halley Comet Tail   N/Mg 2.3             Brownlee 2004 Huebner 2002 Shales 12 Mg 2.3           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% Rudnick & Gao 2004 Shaw et al. 1967 Upper Continental Crust 12 Mg 2.3           wt% Rudnick & Gao 2004 Wedepohl 1995 Upper Continental Crust 12 Mg 2.3           wt%ox Weaver & Tarney 1984 Taylor & McLennan 1981 Ureilite Vein Metal   Si/Mg 2.3         5   Janssens et al. 1987 Yangtze Craton 12 Mg 2.32           wt%ox Gao et al. 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 Hydrothermal Sediment 12 Mg 2.35         4 wt%ox Plank & Langmuir 1998 Upper Continental Crust 12 Mg 2.4           wt%ox Wedepohl 1995 Interlayered Clay & Chert 12 Mg 2.41         12 wt%ox Plank & Langmuir 1998 Upper Continental Crust 12 Mg 2.42           wt%ox Condie 1993 Felsic Granulites 12 Mg 2.44         137 wt%ox Gao et al. 1998 East Sunda Trench 12 Mg 2.45           wt%ox Plank & Langmuir 1998 Upper Continental Crust 12 Mg 2.45           wt% Rudnick & Gao 2004 Condie 1993 Upper Continental Crust 12 Mg 2.46           wt%ox Condie 1993 Subducted Sediment 12 Mg 2.48   0.16       wt%ox Plank & Langmuir 1998 Upper Continental Crust 12 Mg 2.48   0.35       wt% Rudnick & Gao 2004 see text Upper Continental Crust 12 Mg 2.48           wt% Rudnick & Gao 2004 Upper Continental Crust 12 Mg 2.48           wt% Kemp & Hawkesworth 2004 Rudnick & Gao 2004 DSDP/ODP Site 801 12 Mg 2.49           wt%ox Elliot et al. 1997 Central East China Craton 12 Mg 2.52           wt%ox Gao et al. 1998 Pelites 12 Mg 2.56         69 wt%ox Gao et al. 1998 Late Archean Upper Crust 12 Mg 2.57           wt%ox Condie 1993 Trachyandesites 12 Mg 2.57         223 wt%ox Le Maitre 1976 Enstatite Chondrites   Fe/Mg 2.6   0.2         McDonough & Sun 1995 Mesozoic & Cenozoic Extensions 12 Mg 2.6           wt%ox Rudnick & Fountain 1995 Tonalites 12 Mg 2.6           wt%ox Wedepohl 1995 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 Upper Continental Crust 12 Mg 2.62           wt% Rudnick & Gao 2004 Gao et al. 1998 Silty Mud 12 Mg 2.63         16 wt%ox Plank & Langmuir 1998 South Qinling Belt in China 12 Mg 2.64           wt%ox Gao et al. 1998 Interior North China Craton 12 Mg 2.67           wt%ox Gao et al. 1998 Tonga Trench 12 Mg 2.69           wt%ox Plank & Langmuir 1998 Yangtze Craton 12 Mg 2.7           wt%ox Gao et al. 1998 Aleutian Trench 12 Mg 2.71           wt%ox Plank & Langmuir 1998 Java Trench 12 Mg 2.72           wt%ox Plank & Langmuir 1998 North Antilles Trench 12 Mg 2.77           wt%ox Plank & Langmuir 1998 Yangtze Craton 12 Mg 2.77           wt%ox Gao et al. 1998 Continental Crust 12 Mg 2.8           wt%ox Weaver & Tarney 1984 Continental Crust 12 Mg 2.8           wt% Rudnick & Gao 2004 Weaver & Tarney 1984 Continental Crust 12 Mg 2.8           wt% Rudnick & Gao 2004 Smithson 1978 Tonalites 12 Mg 2.8         83 wt%ox Le Maitre 1976 Archean Terrains 12 Mg 2.83           wt% Taylor & McLennan 1995 Vanuatu Trench 12 Mg 2.84           wt%ox Plank & Langmuir 1998 North American Shale Composite (NASC) 12 Mg 2.86           wt%ox Condie 1993 South Margin of North China Craton 12 Mg 2.86           wt%ox Gao et al. 1998 Alaska Trench 12 Mg 2.87           wt%ox Plank & Langmuir 1998 Kerm Trench 12 Mg 2.87           wt%ox Plank & Langmuir 1998 Mexico Trench 12 Mg 2.87           wt%ox Plank & Langmuir 1998 South Qinling Belt in China 12 Mg 2.88           wt%ox Gao et al. 1998 Late Archean Upper Crust 12 Mg 2.89           wt%ox Condie 1993 Carbonate Turbidites 12 Mg 2.9         87 wt%ox Plank & Langmuir 1998 Metamorphic Rocks 12 Mg 2.91           wt%ox Wedepohl 1995 Poldervaart 1955 Volcanoclastic Sediment 12 Mg 2.93         15 wt%ox Plank & Langmuir 1998 Cascadia Trench 12 Mg 2.96           wt%ox Plank & Langmuir 1998 Clastic Turbidites 12 Mg 2.96         28 wt%ox Plank & Langmuir 1998 Cratonic Peridotite 12 Mg 20.1           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 20.13           wt% Pearson et al. 2004 Zipfel & Worner 1992 Cratonic Peridotite 12 Mg 20.3           wt% Pearson et al. 2004 Canil & O'Neill 1996 Continental Intraplate Peridotite 12 Mg 20.77           wt% Pearson et al. 2004 Ionov 1996 Cratonic Peridotite 12 Mg 20.9           wt% Pearson et al. 2004 Smith et al. 1991 Continental Intraplate Peridotite 12 Mg 20.91           wt% Pearson et al. 2004 Ionov 1996 Continental Intraplate Peridotite 12 Mg 20.97           wt% Pearson et al. 2004 Ionov 1996 Shallowater Aubrite 12 Mg 201.5             Mittlefehldt 2004 Easton 1985 Keil et al. 1989 Cratonic Peridotite 12 Mg 21.1           wt% Pearson et al. 2004 Smith et al. 1991 Continental Intraplate Peridotite 12 Mg 21.47           wt% Pearson et al. 2004 Ionov 1996 Cratonic Peridotite 12 Mg 21.5           wt% Pearson et al. 2004 Canil & O'Neill 1996 EET 83309 Urelite 12 Mg 210             Mittlefehldt 2004 Warren & Kallemeyn 1989b EET 84302 Acapulcoite 12 Mg 210             Mittlefehldt 2004 Weigel et al. 1999 Komatiites   MgO/Ni 210             McDonough 1991 META 78008 Urelite 12 Mg 210             Mittlefehldt 2004 Warren & Kallemeyn 1992 Danube River Particulates 12 Mg 21000           µg/g Martin & Meybeck 1979 Marine Pelagic Clay 12 Mg 21000           ppm Li 1982 Marine Pelagic Clay 12 Mg 21000           ppm Li 1991 Turekian & Wedepohl 1961 Y-791491 Lodranite 12 Mg 212             Mittlefehldt 2004 Weigel et al. 1999 ALHA 81101 Urelite 12 Mg 215             Mittlefehldt 2004 Warren & Kallemeyn 1992 Spitz & Boynton 1991 Orangeite 12 Mg 22.1         114 wt% Farmer 2004 Mitchell 1995 Primitive Mantle 12 Mg 22.17   0.2217       wt% Palme & O'Neill 2004 Primitive Mantle 12 Mg 22.17           wt% Palme & O'Neill 2004 Cratonic Peridotite 12 Mg 22.3           wt% Pearson et al. 2004 Canil & O'Neill 1996 Halley Comet Tail   O/Mg 22.3             Brownlee 2004 Geiss 1988 Primitive Mantle 12 Mg 22.5           wt% McDonough 1990 McDonough & Frey 1989 Sun 1982 Mantle 12 Mg 22.8           wt% McDonough 2004 Primitive Mantle 12 Mg 22.8   2.28       wt% McDonough & Sun 1995 Silicate Earth 12 Mg 22.8           wt% McDonough 1998 Silicate Earth 12 Mg 22.8           wt% McDonough 2004 Silicate Earth 12 Mg 22.8   2.28       wt% McDonough & Sun 1995 MAC 88177 Lodranite 12 Mg 221             Mittlefehldt 2004 Weigel et al. 1999 Havero Urelite 12 Mg 224             Mittlefehldt 2004 Wanke et al. 1972 Primitive Mantle 12 Mg 229060           ppm Wedepohl & Hartmann 1994 Wedepohl 1991 Aubres Aubrite 12 Mg 232.7             Mittlefehldt 2004 Easton 1985 Wolf et al. 1983 Continental Crust 12 Mg 23790           ppm Wedepohl & Hartmann 1994 Wedepohl 1991 Pena Blanca Spring Aubrite 12 Mg 238.4             Mittlefehldt 2004 Wolf et al. 1983 Lodders et al. 1993 ALHA 77257 Urelite 12 Mg 239.1             Mittlefehldt 2004 Jarosewich 1990 Warren & Kallemeyn 1992 Spitz & Boynton 1991 Allende Meteorite 12 Mg 24.63           wt%ox Martin & Mason 1974 St. Lawrence River Particulates 12 Mg 24500           µg/g Martin & Meybeck 1979 Australian Granite   Mg# 25.2         13   Kemp & Hawkesworth 2004 Inger & Harris 1993 Halley Comet Tail   H/Mg 25200             Brownlee 2004 Huebner 2002 Komatiites 12 Mg 26           wt%ox Condie 1993 Goalpara Ureilite 12 Mg 26.1   0.8       wt%ox Boynton et al. 1976 Kimberlite 12 Mg 26.7         32 wt% Farmer 2004 Taylor et al. 1994 Mars Mantle 12 Mg 27.3           wt% McSween, Jr. 2004 Sanloup 1999 Kimberlite 12 Mg 27.8         22 wt% Farmer 2004 Taylor et al. 1994 Talkeetna Arc Plutonic Rocks 12 Mg 27.95   0.343     17 wt% Kelemen et al. 2004 Lherzolites 12 Mg 28.37         177 wt%ox Le Maitre 1976 Kimberlite 12 Mg 29.1         35 wt% Farmer 2004 Taylor et al. 1994 Granites   Mg# 29.7         8   Kemp & Hawkesworth 2004 Kemp 2001 Mars Mantle 12 Mg 29.7           wt% McSween, Jr. 2004 Lodders & Fegley 1997 North Qinling Belt in China 12 Mg 3.01           wt%ox Gao et al. 1998 Turbidites 12 Mg 3.01         4 wt%ox Plank & Langmuir 1998 Upper Continental Crust 12 Mg 3.01           wt% Rudnick & Gao 2004 Ronov & Yaroshevskiy 1976 Central East China Craton 12 Mg 3.02           wt%ox Gao et al. 1998 DSDP/ODP Site 801 12 Mg 3.05           wt%ox Plank & Langmuir 1998 Pelagic Clay 12 Mg 3.07         6 wt%ox Plank & Langmuir 1998 Archean Terrains 12 Mg 3.1           wt%ox Shaw et al. 1986 Rogers 1978 Continental Crust 12 Mg 3.1           wt% Rudnick & Gao 2004 Christensen & Mooney 1995 Continental Crust 12 Mg 3.1           wt% Rudnick & Gao 2004 Ronov & Yaroshevsky 1967 Continental Crust 12 Mg 3.1           wt%ox Weaver & Tarney 1984 Ronov & Yaroshevskiy 1969 Continental Crust 12 Mg 3.1           wt%ox Weaver & Tarney 1984 Vinogradov 1962 Pelagic Clay 12 Mg 3.1         3 wt%ox Plank & Langmuir 1998 Metapelitic Granulitic Xenolites 12 Mg 3.12 3.03       78 wt%ox Rudnick & Fountain 1995 Pelagic Clay 12 Mg 3.13           wt%ox Elliot et al. 1997 Pelagic Clay 12 Mg 3.13         6 wt%ox Plank & Langmuir 1998 Continental Crust 12 Mg 3.15           wt%ox Shaw et al. 1986 Green Clay 12 Mg 3.15         3 wt%ox Plank & Langmuir 1998 Ryuku Trench 12 Mg 3.17           wt%ox Plank & Langmuir 1998 Intermediate Precambrian Granulites 12 Mg 3.18         26 wt%ox Shaw et al. 1986 Philip Trench 12 Mg 3.19           wt%ox Plank & Langmuir 1998 Continental Crust 12 Mg 3.2           wt%ox Weaver & Tarney 1984 Holland & Lambert 1972 Continental Crust 12 Mg 3.2           wt% Palme & O'Neill 2004 Rudnick & Gao 2004 Continental Crust 12 Mg 3.2           wt% Rudnick & Gao 2004 Holland & Lambert 1972 Continental Crust 12 Mg 3.2           wt% Rudnick & Gao 2004 Shaw et al. 1986 Continental Crust 12 Mg 3.2           wt% Taylor & McLennan 1995 Mars Rocks 12 Mg 3.2   0.32       wt% McSween, Jr. 2004 Wanke et al. 2001 Mugearites 12 Mg 3.2         55 wt%ox Le Maitre 1976 North Qinling Belt in China 12 Mg 3.2           wt%ox Gao et al. 1998 South Qinling Belt in China 12 Mg 3.2           wt%ox Gao et al. 1998 South Margin of North China Craton 12 Mg 3.21           wt%ox Gao et al. 1998 Metalliferous Clay 12 Mg 3.23         12 wt%ox Plank & Langmuir 1998 Brown Clay 12 Mg 3.26         29 wt%ox Plank & Langmuir 1998 Andesites 12 Mg 3.3           wt%ox Condie 1993 Graywackes 12 Mg 3.3           wt%ox Condie 1993 Mesozoic & Cenozoic Orogens 12 Mg 3.3           wt%ox Rudnick & Fountain 1995 Sediments 12 Mg 3.3           wt%ox Wedepohl 1995 Ronov & Yaroshevskiy 1969 Andesites 12 Mg 3.33         2203 wt%ox Le Maitre 1976 Brown Clay 12 Mg 3.36         4 wt%ox Plank & Langmuir 1998 South Margin of North China Craton 12 Mg 3.36           wt%ox Gao et al. 1998 Radiolarian Clay 12 Mg 3.37         8 wt%ox Plank & Langmuir 1998 Radiolarian Clay 12 Mg 3.37         8 wt%ox Plank & Langmuir 1998 Central East China Craton 12 Mg 3.38           wt%ox Gao et al. 1998 North Qinling Belt in China 12 Mg 3.38           wt%ox Gao et al. 1998 South Margin of North China Craton 12 Mg 3.39           wt%ox Gao et al. 1998 Andean Andesites 12 Mg 3.4           wt%ox Weaver & Tarney 1984 Bailey 1981 Andesites 12 Mg 3.4           wt%ox Condie 1993 Archean Lower Crust 12 Mg 3.4           wt%ox Shaw et al. 1986 Weaver & Tarney 1984 Early Archean Upper Crust 12 Mg 3.4           wt%ox Condie 1993 Granulites 12 Mg 3.4           wt%ox Weaver & Tarney 1984 Weaver & Tarney 1982 Middle Continental Crust 12 Mg 3.4           wt%ox Rudnick & Fountain 1995 South Qinling Belt in China 12 Mg 3.4           wt%ox Gao et al. 1998 Central East China Craton 12 Mg 3.42           wt%ox Gao et al. 1998 Yangtze Craton 12 Mg 3.42           wt%ox Gao et al. 1998 Granulites 12 Mg 3.47 1.73       655 wt%ox Rudnick & Presper 1990 Interior North China Craton 12 Mg 3.47           wt%ox Gao et al. 1998 Upper Continental Crust 12 Mg 3.47           wt% Rudnick & Gao 2004 Goldschmidt 1933 East China Craton 12 Mg 3.48           wt%ox Gao et al. 1998 Makran Trench 12 Mg 3.49           wt%ox Plank & Langmuir 1998 Andesites 12 Mg 3.5           wt%ox Condie 1993 Archean Terrains 12 Mg 3.5           wt%ox Shaw et al. 1986 Shaw et al. 1967 Central East China Craton 12 Mg 3.5           wt%ox Gao et al. 1998 Continental Crust 12 Mg 3.5           wt%ox Weaver & Tarney 1984 Taylor & McLennan 1981 Continental Crust 12 Mg 3.5           wt%ox Weaver & Tarney 1984 Goldschmidt 1933 Continental Crust 12 Mg 3.5           wt% Rudnick & Gao 2004 Gao et al. 1998a Graywackes 12 Mg 3.5           wt%ox Condie 1993 Lower Continental Crust 12 Mg 3.5           wt% Rudnick & Gao 2004 Weaver & Tarney 1984 Mars Rocks 12 Mg 3.5   0.35       wt% McSween, Jr. 2004 Wanke et al. 2001 Middle Continental Crust 12 Mg 3.5           wt% Rudnick & Gao 2004 Rudnick & Fountain 1995 Radiolarian Clay 12 Mg 3.5         11 wt%ox Plank & Langmuir 1998 Lower Continental Crust 12 Mg 3.53           wt% Rudnick & Gao 2004 Villaseca et al. 1999 Archean Terrains 12 Mg 3.56           wt% Taylor & McLennan 1995 Upper Continental Crust 12 Mg 3.56           wt% Rudnick & Gao 2004 Clarke & Washington 1924 Talkeetna Arc Plutonic Rocks 12 Mg 3.57   0.017     114 wt% Kelemen et al. 2004 Marianas Trench 12 Mg 3.59           wt%ox Plank & Langmuir 1998 Middle Continental Crust 12 Mg 3.59   0.1       wt% Rudnick & Gao 2004 Middle Continental Crust 12 Mg 3.59           wt% Kemp & Hawkesworth 2004 Rudnick & Gao 2004 Central East China Craton 12 Mg 3.6           wt%ox Gao et al. 1998 Intermediate Mafic Archean Granulites 12 Mg 3.6 3.3       106 wt%ox Rudnick & Fountain 1995 Pelagic Clay 12 Mg 3.64         8 wt%ox Plank & Langmuir 1998 Intermediate Granulites 12 Mg 3.66         136 wt%ox Gao et al. 1998 Central East China Craton 12 Mg 3.67           wt%ox Gao et al. 1998 Middle Continental Crust 12 Mg 3.67           wt% Rudnick & Gao 2004 Gao et al. 1998 Andesites 12 Mg 3.7           wt%ox Condie 1993 Continental Crust 12 Mg 3.7           wt%ox Rudnick & Fountain 1995 Wedepohl 1995 Solar System 12 Mg 3.7           wt%ox Wedepohl 1995 Le Maitre 1976 Diorites 12 Mg 3.71         755 wt%ox Le Maitre 1976 Interior North China Craton 12 Mg 3.72           wt%ox Gao et al. 1998 Central East China Craton 12 Mg 3.73           wt%ox Gao et al. 1998 Granulites 12 Mg 3.73 2.66       592 wt%ox Rudnick & Presper 1990 Diorite 12 Mg 3.74         260 wt%ox Gao et al. 1998 Interior North China Craton 12 Mg 3.76           wt%ox Gao et al. 1998 East China Craton 12 Mg 3.77           wt%ox Gao et al. 1998 QUE 94201 Meteorite 12 Mg 3.77   0.04         McSween, Jr. 2004 Lodders 1998 South Margin of North China Craton 12 Mg 3.77           wt%ox Gao et al. 1998 Continental Crust 12 Mg 3.8           wt% Rudnick & Gao 2004 Wedepohl 1995 Intermediate Mafic Post-Archean Granulites 12 Mg 3.8 3.6       132 wt%ox Rudnick & Fountain 1995 Lower Continental Crust 12 Mg 3.8           wt% Taylor & McLennan 1995 Yangtze Craton 12 Mg 3.82           wt%ox Gao et al. 1998 Central East China Craton 12 Mg 3.86           wt%ox Gao et al. 1998 Shales 12 Mg 3.88           wt%ox Condie 1993 Andesites 12 Mg 3.9           wt%ox Condie 1993 Continental Crust 12 Mg 3.9           wt%ox Weaver & Tarney 1984 Taylor 1964 Continental Crust 12 Mg 3.9           wt% Rudnick & Gao 2004 Taylor 1964 Paleozoic Orogens 12 Mg 3.9           wt%ox Rudnick & Fountain 1995 Mars Rocks 12 Mg 3.91   0.391       wt% McSween, Jr. 2004 Wanke et al. 2001 North Qinling Belt in China 12 Mg 3.94           wt%ox Gao et al. 1998 Mars Mantle 12 Mg 30.1           wt% McSween, Jr. 2004 Wanke & Dreibus 1988 Chassigny Achondrite 12 Mg 30.2   0.6       wt%ox Boynton et al. 1976 Depleted MORB Mantle Orthopyroxene 12 Mg 30.55           wt% Workman & Hart 2005 Halley Comet Tail   H/Mg 31             Brownlee 2004 Grun & Jessberger 1990 Peridotites 12 Mg 31.24         103 wt%ox Le Maitre 1976 Olivine Chondrules 12 Mg 31.8     23.5 36.6 3 wt%ox Martin & Mason 1974 Lower Continental Crust 12 Mg 31550           ppm Wedepohl 1995 Cratonic Peridotite 12 Mg 32.5           wt% Pearson et al. 2004 Smith et al. 1991 Continental Intraplate Peridotite 12 Mg 32.51           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 32.94           wt% Pearson et al. 2004 Ionov 1996 Kenna Ureilite 12 Mg 33.1   0.7       wt%ox Boynton et al. 1976 Harzburgites 12 Mg 33.18         199 wt%ox Le Maitre 1976 Continental Intraplate Peridotite 12 Mg 33.21           wt% Pearson et al. 2004 Ionov 1996 Venus Mantle 12 Mg 33.3           wt% Fegley, Jr. 2004 Lodders & Fegley 1998 Ocean Island Peridotite 12 Mg 33.4           wt% Pearson et al. 2004 Sen 1988 Ocean Island Peridotite 12 Mg 33.6           wt% Pearson et al. 2004 Sen 1988 Mercury Crustal Silicates 12 Mg 33.7           wt% Taylor & Scott 2004 Morgan & Anders 1980 Continental Intraplate Peridotite 12 Mg 34           wt% Pearson et al. 2004 Canil & O'Neill 1996 Nuevo Laredo Eucrite 12 Mg 34             Mittlefehldt 2004 Warren & Jerde 1987 Primitive Mantle 12 Mg 34.02           wt%ox McDonough & Frey 1989 Anderson 1983 Peninsular Range Batholith   Mg# 34.1             Kemp & Hawkesworth 2004 Sylvester 1995 Novo-Urei Ureilite 12 Mg 34.5   0.7       wt%ox Boynton et al. 1976 Mercury Crustal Silicates 12 Mg 34.6           wt% Taylor & Scott 2004 Goettel 1988 Continental Intraplate Peridotite 12 Mg 34.64           wt% Pearson et al. 2004 Zipfel & Worner 1992 Australian Granite   Mg# 34.8         8   Kemp & Hawkesworth 2004 Whalen 1985 Cratonic Peridotite 12 Mg 35           wt% Pearson et al. 2004 Canil & O'Neill 1996 Enstatite Chondrites   Mg/Cr 35   4         McDonough & Sun 1995 Primitive Mantle 12 Mg 35.1           wt%ox McDonough & Frey 1989 Taylor & McLennan 1985 Primitive Mantle 12 Mg 35.15           wt%ox McDonough & Sun 1995 Taylor & McLennan 1985 Silicate Earth 12 Mg 35.15           wt%ox McDonough & Sun 1995 Taylor & McLennan 1985 Cratonic Peridotite 12 Mg 35.2           wt% Pearson et al. 2004 Canil & O'Neill 1996 Granites   Mg# 35.5             Kemp & Hawkesworth 2004 Sylvester 1995 Primitive Mantle 12 Mg 35.5           wt% Pearson et al. 2004 Palme & Nickel 1985 Primitive Mantle 12 Mg 35.5           wt%ox McDonough & Frey 1989 Palme & Nickel 1985 Primitive Mantle 12 Mg 35.5           wt% Palme & O'Neill 2004 Palme & Nickel 1985 Venus Mantle 12 Mg 35.5           wt% Fegley, Jr. 2004 Morgan & Anders 1980 Lodders & Fegley 1998 Mantle 12 Mg 35.8           wt% Palme & O'Neill 2004 Mercury Crustal Silicates 12 Mg 36.1           wt% Taylor & Scott 2004 Goettel 1988 Jagoutz et al. 1979 Taylor & McLennan 1985 McDonough & Sun 1995 CI Chondrites   Mg/Cr 36.4             McDonough & Sun 1995 Cratonic Peridotite 12 Mg 36.5           wt% Pearson et al. 2004 Canil & O'Neill 1996 Fresh Mid-Ocean Ridge Basalts 12 Mg 36.77           wt% Palme & O'Neill 2004 Primitive Mantle 12 Mg 36.77   0.44       wt% Palme & O'Neill 2004 Primitive Mantle 12 Mg 36.78           wt% Walter 2004 Palme & O'Neill 2004 Primitive Mantle 12 Mg 36.8           wt% Palme & O'Neill 2004 Wanke et al. 1984 Primitive Mantle 12 Mg 36.85           wt%ox McDonough & Frey 1989 Wanke et al. 1984 Primitive Mantle 12 Mg 37.2           wt%ox McDonough & Frey 1989 McDonough & Sun 1989 Primitive Mantle 12 Mg 37.2           wt%ox McDonough 1990 McDonough & Frey 1989 Sun 1982 Mercury Crustal Silicates 12 Mg 37.4           wt% Taylor & Scott 2004 Krot et al. 2001 Venus Mantle 12 Mg 37.6           wt% Fegley, Jr. 2004 Lodders & Fegley 1998 Primitive Mantle 12 Mg 37.71           wt% Workman & Hart 2005 McDonough & Sun 1995 Primitive Mantle 12 Mg 37.77           wt% Walter 2004 Allegre et al. 1995 Primitive Mantle 12 Mg 37.77           wt% Palme & O'Neill 2004 Allegre et al. 1995 Primitive Mantle 12 Mg 37.77           wt%ox Allegre et al. 1995 Low Si-Mg Mantle 12 Mg 37.78           wt% Walter 2004 Hart & Zindler 1986 Primitive Mantle 12 Mg 37.78           wt%ox McDonough & Frey 1989 Hart & Zindler 1986 Primitive Mantle 12 Mg 37.78           wt% Pearson et al. 2004 Hart & Zindler 1986 Primitive Mantle 12 Mg 37.78           wt%ox Hofmann 1988 Hart & Zindler 1986 Primitive Mantle 12 Mg 37.8           wt% Palme & O'Neill 2004 Hart & Zindler 1986 Primitive Mantle 12 Mg 37.8           wt% Pearson et al. 2004 McDonough & Sun 1995 Primitive Mantle 12 Mg 37.8           wt% Palme & O'Neill 2004 McDonough & Sun 1995 Primitive Mantle 12 Mg 37.8           wt%ox McDonough & Sun 1995 Pyrolites 12 Mg 37.8           wt% Walter 2004 McDougall & Sun 1995 Silicate Earth 12 Mg 37.8           wt%ox McDonough & Sun 1995 Dunites 12 Mg 37.94         78 wt%ox Le Maitre 1976 Periodotite Massifs 12 Mg 38           wt% Walter 2004 Bonatti et al. 1986 Primitive Mantle 12 Mg 38           wt%ox McDonough & Frey 1989 Sun 1982 Primitive Mantle 12 Mg 38.1           wt% Palme & O'Neill 2004 Ringwood 1979 Primitive Mantle 12 Mg 38.1           wt%ox McDonough & Frey 1989 Ringwood 1979 Pyrolites 12 Mg 38.1           wt% Walter 2004 Ringwood 1979 Pyrolites 12 Mg 38.1           wt%ox Allegre et al. 1995 Ringwood 1979 Depleted Mantle 12 Mg 38.22   0.3822       wt%ox Salters & Stracke 2004 Primitive Mantle 12 Mg 38.3           wt% Pearson et al. 2004 Jagoutz et al. 1979 Primitive Mantle 12 Mg 38.3           wt% Palme & O'Neill 2004 Jagoutz et al. 1979 Primitive Mantle 12 Mg 38.3           wt%ox McDonough & Sun 1995 Jagoutz et al. 1979 Silicate Earth 12 Mg 38.3           wt%ox McDonough & Sun 1995 Jagoutz et al. 1979 Xenolites 12 Mg 38.3           wt% Walter 2004 Jagoutz et al. 1979 Mantle 12 Mg 38.59           wt% Walter 2004 Mantle 12 Mg 38.59     37.46 39.25   wt% Walter 2004 Island Arcs   Mg# 38.7         323   Kemp & Hawkesworth 2004 Silver & Chappell 1998 Depleted D-MORB basalts 12 Mg 38.73           wt% Workman & Hart 2005 Primitive Mantle 12 Mg 38.8           wt%ox McDonough & Sun 1995 Green et al. 1979 Silicate Earth 12 Mg 38.8           wt%ox McDonough & Sun 1995 Green et al. 1979 Carbonaceous Chondrites   Mg/Cr 39   2         McDonough & Sun 1995 Halley Comet Tail   H/Mg 39             Brownlee 2004 Geiss 1988 Ordinary Chondrites   Mg/Cr 39   1         McDonough & Sun 1995 D'Orbigny Angrite 12 Mg 39.6             Mittlefehldt 2004 Mittlefehldt et al. 2002 Active Continental Rifts 12 Mg 4           wt%ox Rudnick & Fountain 1995 Upper Continental Crust   Mg# 4             Rudnick & Gao 2004 Borodin 1998 Early Archean Upper Crust 12 Mg 4.06           wt%ox Condie 1993 Precambrian Granulites 12 Mg 4.06         88 wt%ox Shaw et al. 1986 Lower Continental Crust 12 Mg 4.1           wt%ox Shaw et al. 1986 Lower Continental Crust 12 Mg 4.1           wt%ox Shaw et al. 1986 Taylor & McLennan 1981 DSDP/ODP Site 800 12 Mg 4.13           wt%ox Plank & Langmuir 1998 Phanerozoic Flood Basalts 12 Mg 4.2         36 wt% Farmer 2004 Hooper & Hawkesworth 1993 North Qinling Belt in China 12 Mg 4.24           wt%ox Gao et al. 1998 Phanerozoic Flood Basalts 12 Mg 4.3         1 wt% Farmer 2004 Peate 1997 Rifted Continental Margins 12 Mg 4.3           wt%ox Rudnick & Fountain 1995 Central East China Craton 12 Mg 4.33           wt%ox Gao et al. 1998 Lower Continental Crust 12 Mg 4.36           wt% Rudnick & Gao 2004 Shaw et al. 1994 Ashy Clay 12 Mg 4.39         4 wt%ox Plank & Langmuir 1998 Continental Crust 12 Mg 4.4           wt%ox Rudnick & Fountain 1995 Lower Continental Crust 12 Mg 4.46           wt% Rudnick & Gao 2004 Gao et al. 1998a Andesites 12 Mg 4.5           wt%ox Condie 1993 Continental Crust 12 Mg 4.5           wt% Rudnick & Gao 2004 Rudnick & Fountain 1995 Mars Rocks 12 Mg 4.56   0.456       wt% McSween, Jr. 2004 Wanke et al. 2001 Upper Continental Crust 12 Mg 4.59           wt% Rudnick & Gao 2004 Clarke 1889 Andesites 12 Mg 4.6           wt%ox Condie 1993 Andesites 12 Mg 4.66         50 wt%ox Plank & Langmuir 1998 Plank & Langmuir 1988 Continental Crust 12 Mg 4.66           wt% Rudnick & Gao 2004 Continental Crust 12 Mg 4.66           wt% Kemp & Hawkesworth 2004 Rudnick & Gao 2004 Continental Crust 12 Mg 4.7           wt% Rudnick & Gao 2004 Rudnick & Fountain 1995 Continental Shields & Platforms 12 Mg 4.7           wt%ox Rudnick & Fountain 1995 Tephrites 12 Mg 4.7         84 wt%ox Le Maitre 1976 Interior North China Craton 12 Mg 4.77           wt%ox Gao et al. 1998 Mesozoic & Cenozoic Extensions 12 Mg 4.8           wt%ox Rudnick & Fountain 1995 Mesozoic & Cenozoic Orogens 12 Mg 4.8           wt%ox Rudnick & Fountain 1995 Talkeetna Arc Plutonic Rocks 12 Mg 4.89   0.187     7 wt% Kelemen et al. 2004 Archean Terrains 12 Mg 4.9           wt%ox Rudnick & Fountain 1995 Lower Continental Crust 12 Mg 4.9           wt%ox Wedepohl 1995 MacKenzie River Particulates 12 Mg 4000           µg/g Martin & Meybeck 1979 Continental Arc Xenoliths 12 Mg 41.14 40.72 2.8     28   Pearson et al. 2004 Continental Rift Xenoliths 12 Mg 41.17 41.21 3.43     23   Pearson et al. 2004 Mantle Xenoliths 12 Mg 41.4           wt% Pearson et al. 2004 McDonough 1990 Spinel Peridotites 12 Mg 41.4 41.2 3     375 wt%ox McDonough 1990 Continental Intraplate Xenoliths 12 Mg 41.84 41.7 2.96     273   Pearson et al. 2004 Australian Granite   Mg# 41.9         704   Kemp & Hawkesworth 2004 Chappell & White 1992 Rivers 12 Mg 4100           ppb Li 1982 Miles IIE Iron 12 Mg 42             Mittlefehldt 2004 Ebihara et al. 1997 Stannern Eucrite 12 Mg 42             Mittlefehldt 2004 Barrat et al. 2000 McCarthy et al. 1973 Spinel Peridotites 12 Mg 42.25           wt%ox McDonough 1990 Maaloe & Aoki 1975 Garnet Peridotites 12 Mg 42.6           wt%ox McDonough 1990 Maaloe & Aoki 1975 Tonalites-Trondhjemites-Granodiorites   Mg# 42.8         355   Kemp & Hawkesworth 2004 Martin 1995 Sioux County Eucrite 12 Mg 42.9             Mittlefehldt 2004 Barrat et al. 2000 McCarthy et al. 1973 Talkeetna Arc Plutonic Rocks   Mg# 43   0.4     28   Kelemen et al. 2004 Talkeetna Arc Plutonic Rocks   Mg# 43   0.1     114   Kelemen et al. 2004 MORB Basaltic Glass   Mg# 43.3             Klein 2004 Lehnert 2000 Garnet Peridotites 12 Mg 43.55           wt%ox McDonough 1990 Jordan 1979 Middle Continental Crust   Mg# 43.8             Rudnick & Gao 2004 Weaver & Tarney 1984 Ibitira Eucrite 12 Mg 43.9             Mittlefehldt 2004 Jarosewich 1990 Barrat et al. 2000 Australian Granite   Mg# 44.1         1074   Kemp & Hawkesworth 2004 Wormald & Price 1988 Oceanic Island Xenoliths 12 Mg 44.25 44.73 234     16   Pearson et al. 2004 Ocean Arc Xenoliths 12 Mg 44.61 44.66 1.87     21   Pearson et al. 2004 Continental Crust   Mg# 44.8             Rudnick & Gao 2004 Christensen & Mooney 1995 South African Garnet Peridotites 12 Mg 44.86           wt%ox McDonough 1990 Boyd & Mertzman 1987 Enstatite Chondrites   Mg/Cr 45   8         McDonough & Sun 1995 Talkeetna Arc Plutonic Rocks   Mg# 45   0.6     7   Kelemen et al. 2004 Middle Continental Crust   Mg# 45.5             Rudnick & Gao 2004 Shaw et al. 1994 Lower Continental Crust   Mg# 45.6             Rudnick & Gao 2004 Villaseca et al. 1999 Y-74450 Eucrites 12 Mg 45.7             Mittlefehldt 2004 Wanke et al. 1977 Lower Continental Crust   Mg# 46.1             Rudnick & Gao 2004 Gao et al. 1998a Cratonic Xenoliths 12 Mg 46.19 46.52 2.94     232   Pearson et al. 2004 Upper Continental Crust   Mg# 46.6             Rudnick & Gao 2004 Taylor & McLennan 1985 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# 46.7             Rudnick & Gao 2004 Gao et al. 1998 Upper Continental Crust   Mg# 46.9             Rudnick & Gao 2004 Goldschmidt 1933 Continental Crust   Mg# 47             Rudnick & Gao 2004 Ronov & Yaroshevsky 1967 Upper Continental Crust   Mg# 47.4             Rudnick & Gao 2004 Fahrig & Eade 1968 Upper Continental Crust   Mg# 47.9             Rudnick & Gao 2004 Condie 1993 Upper Continental Crust   Mg# 48.1             Rudnick & Gao 2004 Ronov & Yaroshevskiy 1976 Continental Crust   Mg# 48.3             Rudnick & Gao 2004 Gao et al. 1998a Chaunskij Mesosiderite 12 Mg 48.4             Mittlefehldt 2004 Mittlefehldt in press Petaev et al. 2000 Depleted MORB Mantle Olivine 12 Mg 48.59           wt% Workman & Hart 2005 Middle Continental Crust   Mg# 48.6             Rudnick & Gao 2004 Rudnick & Fountain 1995 Continental Crust   Mg# 48.7             Rudnick & Gao 2004 Taylor 1964 Upper Continental Crust   Mg# 48.7             Rudnick & Gao 2004 Goldschmidt 1933 Continental Crust   Mg# 49             Rudnick & Gao 2004 Smithson 1978 Granulites   Mg# 49.5 42.9           Rudnick & Presper 1990 Oceanic Crust 12 Mg 49600           ppm Wedepohl & Hartmann 1994 Wedepohl 1981 Fresh Mid-Ocean Ridge Basalts 12 Mg 5             Edmond et al. 1979 Central East China Craton 12 Mg 5.05           wt%ox Gao et al. 1998 Igneous Rocks 12 Mg 5.06         22775 wt%ox Le Maitre 1976 Continental Arcs 12 Mg 5.1           wt%ox Rudnick & Fountain 1995 Trachybasalts 12 Mg 5.17         155 wt%ox Le Maitre 1976 Archean Canadian Shield 12 Mg 5.2           wt%ox Shaw et al. 1986 Taylor & McLennan 1981 Continental Crust 12 Mg 5.3           wt% Rudnick & Gao 2004 Taylor & McLennan 1985 Taylor & McLennan 1995 Mars Soil 12 Mg 5.3     2.3 10.3   wt% McSween, Jr. 2004 Clark et al. 1982 Volcanoclastic Turbidites 12 Mg 5.31           wt%ox Elliot et al. 1997 Lower Continental Crust 12 Mg 5.32           wt% Rudnick & Gao 2004 Wedepohl 1995 Intermediate Mafic Granulitic Xenolites 12 Mg 5.5 5.3       48 wt%ox Rudnick & Fountain 1995 Hawaiites 12 Mg 5.58         58 wt%ox Le Maitre 1976 Shergotty Meteorite 12 Mg 5.58   0.11         McSween, Jr. 2004 Lodders 1998 Mavic Volcanics 12 Mg 5.6         632 wt%ox Gao et al. 1998 MORB Basaltic Glass 12 Mg 5.62           wt% Klein 2004 Lehnert 2000 Andesites 12 Mg 5.65         47 wt% Kelemen et al. 2004 Phanerozoic Flood Basalts 12 Mg 5.7         18 wt% Farmer 2004 Lightfoot et al. 1990 Mercury Crustal Silicates 12 Mg 50           wt% Taylor & Scott 2004 Fegley & Cameron 1987 Continental Crust   Mg# 50.1             Rudnick & Gao 2004 Shaw et al. 1986 Upper Continental Crust   Mg# 50.1             Rudnick & Gao 2004 Shaw et al. 1967 Upper Continental Crust   Mg# 50.1             Rudnick & Gao 2004 Wedepohl 1995 Continental Crust   Mg# 50.5             Rudnick & Gao 2004 Weaver & Tarney 1984 Lower Continental Crust   Mg# 50.5             Rudnick & Gao 2004 Condie & Selverstone 1999 Macibini Eucrites 12 Mg 50.5             Mittlefehldt 2004 McCarthy et al. 1973 Buchanan et al. 2000b Continental Crust   Mg# 50.9             Rudnick & Gao 2004 Holland & Lambert 1972 Continental Crust   Mg# 50.9             Rudnick & Gao 2004 Taylor & McLennan 1985 Taylor & McLennan 1995 Lower Continental Crust   Mg# 51.4             Rudnick & Gao 2004 Taylor & McLennan 1985 Taylor & McLennan 1995 Middle Continental Crust   Mg# 51.5             Kemp & Hawkesworth 2004 Rudnick & Gao 2004 Middle Continental Crust   Mg# 51.5             Rudnick & Gao 2004 Granulites   Mg# 52.3 41.7           Rudnick & Presper 1990 Lower Continental Crust   Mg# 52.3             Rudnick & Gao 2004 Shaw et al. 1994 MORB Basaltic Glass   Mg# 52.5             Klein 2004 Lehnert 2000 Seawater 12 Mg 52.6             Bowers & Taylor 1985 Seawater 12 Mg 53             von Glasow & Crutzen 2004 Andrews et al. 1996 Upper Continental Crust   Mg# 53             Rudnick & Gao 2004 Clarke & Washington 1924 Seawater 12 Mg 53.2             Bruland 1983 Continental Crust 12 Mg 53.4             Rudnick & Fountain 1995 Wedepohl 1995 Lower Continental Crust   Mg# 53.4             Rudnick & Gao 2004 Weaver & Tarney 1984 CI Chondrites 12 Mg 53.6             McDonough & Frey 1989 Palme et al. 1981 Anders & Ebihara 1982 Beer et al. 1984 Jochum et al. 1986 Seawater 12 Mg 53000             Broeker & Peng 1982 Continental Crust   Mg# 54.3             Rudnick & Gao 2004 Rudnick & Fountain 1995 Continental Crust   Mg# 54.3             Rudnick & Gao 2004 Wedepohl 1995 Middle Continental Crust   Mg# 54.5             Rudnick & Gao 2004 Gao et al. 1998 MORB Basaltic Glass   Mg# 55.2             Klein 2004 Lehnert 2000 Continental Crust   Mg# 55.3             Rudnick & Gao 2004 Continental Crust   Mg# 55.3             Kemp & Hawkesworth 2004 Rudnick & Gao 2004 Lower Continental Crust   Mg# 55.9             Rudnick & Gao 2004 Wedepohl 1995 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 Lower Continental Crust   Mg# 56.5             Rudnick & Gao 2004 Rudnick & Taylor 1987 AII Fracture Zone Basalts 12 Mg 56.66             Hart et al. 1999 Johnson & Dick 1992 Moore County Eucrite 12 Mg 56.7             Mittlefehldt 2004 Barrat et al. 2000 McCarthy et al. 1973 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 Talkeetna Arc Plutonic Rocks   Mg# 58   2.8     6   Kelemen et al. 2004 Talkeetna Arc Plutonic Rocks   Mg# 58   0.1     95   Kelemen et al. 2004 Lower Continental Crust   Mg# 58.6             Rudnick & Gao 2004 Rudnick & Presper 1990 MORB Basaltic Glass   Mg# 58.6             Klein 2004 Lehnert 2000 Congo River Particulates 12 Mg 5800           µg/g Martin & Meybeck 1979 Orinoco River Particulates 12 Mg 5800           µg/g Martin & Meybeck 1979 Active Continental Rifts 12 Mg 6           wt%ox Rudnick & Fountain 1995 Basalts 12 Mg 6           wt%ox Condie 1993 Paleozoic Orogens 12 Mg 6           wt%ox Rudnick & Fountain 1995 Lower Continental Crust 12 Mg 6.04           wt% Rudnick & Gao 2004 Condie & Selverstone 1999 Phanerozoic Flood Basalts 12 Mg 6.1         1 wt% Farmer 2004 Peate 1997 Mafic Granulites 12 Mg 6.14         128 wt%ox Gao et al. 1998 Basalts 12 Mg 6.2         5 wt% Farmer 2004 Wilson et al. 1997 Volcanoclastic Turbidites 12 Mg 6.25         13 wt%ox Plank & Langmuir 1998 Lower Continental Crust 12 Mg 6.28           wt% Rudnick & Gao 2004 Taylor & McLennan 1985 Taylor & McLennan 1995 Intra Stellar Medium 12 Mg 6.33   0.3165         Palme & Jones 2004 Savage & Sembach 1996 Nephelinites 12 Mg 6.39         159 wt%ox Le Maitre 1976 Diabases 12 Mg 6.4         370 wt%ox Le Maitre 1976 Mars Soil 12 Mg 6.4     3.4 11.4   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 Basalts 12 Mg 6.5           wt%ox Condie 1993 Continental Arc Andesite 12 Mg 6.56         142 wt% Kelemen et al. 2004 Basalts 12 Mg 6.6           wt%ox Condie 1993 Basalts 12 Mg 6.6         3 wt% Farmer 2004 Chung et al. 1995 Group 2 Lunar Crystalline Rocks 12 Mg 6.66         8 wt%ox Compston et al. 1970 ODP/DSDP Site 417/418 12 Mg 6.66           wt%ox Staudigel et al. 1996 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 Amphibolites 12 Mg 6.68         189 wt%ox Gao et al. 1998 Basalts 12 Mg 6.7           wt%ox Condie 1993 Mars Rocks 12 Mg 6.71   0.671       wt% McSween, Jr. 2004 Wanke et al. 2001 Basalts 12 Mg 6.73         3156 wt%ox Le Maitre 1976 Dolerites 12 Mg 6.78         687 wt%ox Le Maitre 1976 Basalts 12 Mg 6.8         7 wt% Farmer 2004 Conticelli et al. 1997 Phanerozoic Flood Basalts 12 Mg 6.8         9 wt% Farmer 2004 Wooden et al. 1993 MORB Basaltic Glass 12 Mg 6.87           wt% Klein 2004 Lehnert 2000 Basalts 12 Mg 6.9           wt%ox Condie 1993 Phanerozoic Flood Basalts 12 Mg 6.9         6 wt% Farmer 2004 Lightfoot et al. 1990 Lower Continental Crust   Mg# 60.1             Kemp & Hawkesworth 2004 Rudnick & Gao 2004 Lower Continental Crust   Mg# 60.1             Rudnick & Gao 2004 Rudnick & Fountain 1995 Granulitic Xenolites   Mg# 60.4 59.8           Rudnick & Presper 1990 MORB Basaltic Glass   Mg# 62.6             Klein 2004 Lehnert 2000 Protolith Gabbros at ODP Site 735   Mg# 62.9         8   Hart et al. 1999 Scotia Island Basalt   Mg# 63.06         41   Kelemen et al. 2004 Fresh Mid-Ocean Ridge Basalts   Mg# 63.23         203   Kelemen et al. 2004 Andes Basalt   Mg# 64.12         56   Kelemen et al. 2004 Kermadec Basalts   Mg# 64.48         36   Kelemen et al. 2004 Central American Basalts   Mg# 64.49         78   Kelemen et al. 2004 ODP Site 735   Mg# 64.54 66.15       22   Hart et al. 1999 Aleutian Basalts   Mg# 64.96         66   Kelemen et al. 2004 Honshu Basalt   Mg# 65         137   Kelemen et al. 2004 Marianas Basalt   Mg# 65.05         168   Kelemen et al. 2004 Kamchatka Basalt   Mg# 65.09         78   Kelemen et al. 2004 Angrite Angra Dos Reis 12 Mg 65.1             Mittlefehldt 2004 Mittlefehldt & Lindstrom 1990 Miles IIE Iron 12 Mg 65.1             Mittlefehldt 2004 Ebihara et al. 1997 Continental Arc Andesite   Mg# 65.18         142   Kelemen et al. 2004 Continental Arc Andesite   Mg# 65.24         497   Kelemen et al. 2004 Andesites   Mg# 65.62         47   Kelemen et al. 2004 Tongan Basalts   Mg# 65.81         70   Kelemen et al. 2004 Luzon Basalt   Mg# 66.05         24   Kelemen et al. 2004 Island Arc Andesite   Mg# 66.29         32   Kelemen et al. 2004 Island Arc Andesite   Mg# 66.29         503   Kelemen et al. 2004 Cascade Basalt   Mg# 67.17         60   Kelemen et al. 2004 Greater Antilles Basalt   Mg# 67.64         21   Kelemen et al. 2004 Petersburg Eucrites 12 Mg 67.78             Mittlefehldt 2004 Mason et al. 1979 Buchanan & Reid 1996 Serra De Mage Eucrite 12 Mg 68.44             Mittlefehldt 2004 Barrat et al. 2000 McCarthy et al. 1973 Boninites   Mg# 69.5         348   Kelemen et al. 2004 New Hebrides Islands   Mg# 69.53         65   Kelemen et al. 2004 AII Fracture Zone Basalts 12 Mg 7.1           wt%ox Hart et al. 1999 Johnson & Dick 1992 Continental Shields & Platforms 12 Mg 7.1           wt%ox Rudnick & Fountain 1995 Lower Continental Crust 12 Mg 7.1           wt%ox Rudnick & Fountain 1995 Lunar Crystalline Rocks 12 Mg 7.13           wt%ox Compston et al. 1970 Group 2 Lunar Crystalline Rocks 12 Mg 7.17         8 wt%ox Compston et al. 1970 Basalts 12 Mg 7.2         44 wt% Farmer 2004 Baker et al. 1997 Basalts 12 Mg 7.2         3 wt% Farmer 2004 Wilson et al. 1997 Lower Continental Crust 12 Mg 7.21           wt% Rudnick & Gao 2004 Rudnick & Presper 1990 MORB Basaltic Glass 12 Mg 7.21           wt% Klein 2004 Lehnert 2000 N-MORB 12 Mg 7.23           wt% Klein 2004 Thompson et al. 1980 Lower Continental Crust 12 Mg 7.24           wt% Kemp & Hawkesworth 2004 Rudnick & Gao 2004 Lower Continental Crust 12 Mg 7.24           wt% Rudnick & Gao 2004 Rudnick & Fountain 1995 Lower Continental Crust 12 Mg 7.24           wt% Rudnick & Gao 2004 Rudnick & Fountain 1995 Mafic Intrusions 12 Mg 7.29         308 wt%ox Gao et al. 1998 Mars Soil 12 Mg 7.3     4.3 12.3   wt% McSween, Jr. 2004 Clark et al. 1982 Nakhla Meteorite 12 Mg 7.3   0.2         McSween, Jr. 2004 Lodders 1998 Tholeiites 12 Mg 7.3         190 wt%ox Le Maitre 1976 Transitional Mid-Ocean Ridge Basalts 12 Mg 7.39           wt% Klein 2004 Lehnert 2000 E-MORB 12 Mg 7.43           wt% Klein 2004 Lehnert 2000 Mars Soil 12 Mg 7.46   0.746       wt% McSween, Jr. 2004 Wanke et al. 2001 Lunar Breccias 12 Mg 7.47         6 wt%ox Compston et al. 1970 Group 1 Lunar Crystalline Rocks 12 Mg 7.5         6 wt%ox Compston et al. 1970 Solar Corona 12 Mg 7.53   0.11         Anders & Grevesse 1989 Meyer 1985 Solar Photosphere 12 Mg 7.54   0.06         Palme & Jones 2004 Holweger 2001 CI Chondrites 12 Mg 7.56   0.01         Palme & Jones 2004 Solar System 12 Mg 7.56   1.134         Palme & Jones 2004 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 7.576   0.9243     26 wt%ox Hofmann 1988 Jochum et al. 1988 N-MORB 12 Mg 7.58           wt% Klein 2004 Niu et al. 1999 Solar Photosphere 12 Mg 7.58   0.05         Anders & Grevesse 1989 Gabbros 12 Mg 7.59         1317 wt%ox Le Maitre 1976 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 Basalts 12 Mg 7.6           wt%ox Condie 1993 Gabbros 12 Mg 7.6           wt%ox Wedepohl 1995 Le Maitre 1976 Group 1 Lunar Crystalline Rocks 12 Mg 7.6         6 wt%ox Compston et al. 1970 Lunar Anothosites 12 Mg 7.6           wt%ox Compston et al. 1970 Wood et al. 1970 Granulitic Xenolites 12 Mg 7.68 7.32       350 wt%ox Rudnick & Presper 1990 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 Continental Arcs 12 Mg 7.7           wt%ox Rudnick & Fountain 1995 Rifted Continental Margins 12 Mg 7.7           wt%ox Rudnick & Fountain 1995 Scotia Island Basalt 12 Mg 7.74         41 wt% Kelemen et al. 2004 Talkeetna Arc Plutonic Rocks 12 Mg 7.78   0.027     95 wt% Kelemen et al. 2004 Basic Precambrian Granulites 12 Mg 7.79         25 wt%ox Shaw et al. 1986 Basalts 12 Mg 7.8         7 wt% Farmer 2004 Price et al. 1997 Lunar Breccias 12 Mg 7.81         2 wt%ox Compston et al. 1970 MORB Basaltic Glass 12 Mg 7.85           wt% Klein 2004 Lehnert 2000 Talkeetna Arc Plutonic Rocks 12 Mg 7.86   0.486     6 wt% Kelemen et al. 2004 Lunar Soil 12 Mg 7.87         1 wt%ox Compston et al. 1970 Island Arc Andesite 12 Mg 7.95         32 wt% Kelemen et al. 2004 N-MORB 12 Mg 70.6           ng/g Workman & Hart 2005 Presnall & Hoover 1987 Lesser Antilles Basalt   Mg# 70.97         84   Kelemen et al. 2004 Malvern Howardites 12 Mg 72.6             Mittlefehldt 2004 Palme et al. 1978 Depleted MORB Mantle Spinel 12 Mg 73.2             Workman & Hart 2005 Lower Continental Crust   Mg# 76.2             Rudnick & Gao 2004 Liu et al. 2001 Basalts 12 Mg 8         23 wt% Farmer 2004 Paslick et al. 1995 Phanerozoic Flood Basalts 12 Mg 8         1 wt% Farmer 2004 Peate 1997 Basalts 12 Mg 8.1         13 wt% Farmer 2004 Robert et al. 1992 Basalts 12 Mg 8.1         9 wt% Farmer 2004 Hoang & Flower 1998 Venera 14 Rocks 12 Mg 8.1   3.3       wt% Fegley, Jr. 2004 Surkov et al. 1984 Mafic Post-Archean Granulites 12 Mg 8.14 7.3       95 wt%ox Rudnick & Fountain 1995 Mars Soil 12 Mg 8.16   0.816       wt% McSween, Jr. 2004 Wanke et al. 2001 Basaltic Glass at ODP/DSDP Site 504 12 Mg 8.2   0.34     51 wt%ox Alt et al. 1986 Basalts 12 Mg 8.2         6 wt% Farmer 2004 Marzoli et al. 2000 Andes Basalt 12 Mg 8.28         56 wt% Kelemen et al. 2004 CO Chondrites 12 Mg 8.3   1.7     8 wt% Scott & Krot 2004 Brearley 1993 Greshake 1997 Leucitic Basalt 12 Mg 8.36           wt% Fegley, Jr. 2004 Volkov et al. 1986 MORB Basaltic Glass 12 Mg 8.37           wt% Klein 2004 Lehnert 2000 Least-Altered Basalt at ODP/DSDP Site 504 12 Mg 8.44   0.38     58 wt%ox Alt et al. 1986 Mafic Archean Granulites 12 Mg 8.53 7.25       100 wt%ox Rudnick & Fountain 1995 N-MORB 12 Mg 8.53           wt% Klein 2004 Lehnert 2000 Basanites 12 Mg 8.54         138 wt%ox Le Maitre 1976 Mafic Granulitic Xenolites 12 Mg 8.56 8.24       269 wt%ox Rudnick & Fountain 1995 Fresh Mid-Ocean Ridge Basalts 12 Mg 8.57         203 wt% Kelemen et al. 2004 Marianas Basalt 12 Mg 8.57         168 wt% Kelemen et al. 2004 N-MORB 12 Mg 8.67           wt% Klein 2004 Lehnert 2000 Basalts 12 Mg 8.7         4 wt% Farmer 2004 Chung 1999 Solid Mars 12 Mg 8.7   2.6       wt% McSween, Jr. 2004 Hamilton et al. 2001 Wyatt et al. 2001 Lower Continental Crust 12 Mg 8.72           wt% Rudnick & Gao 2004 Rudnick & Taylor 1987 Volcanoclastic Turbidites 12 Mg 8.72         43 wt%ox Plank & Langmuir 1998 Norites 12 Mg 8.73         188 wt%ox Le Maitre 1976 Protolith Gabbros at ODP Site 735 12 Mg 8.83         8 wt%ox Hart et al. 1999 ODP Site 735 12 Mg 8.837 8.34       22 wt%ox Hart et al. 1999 Fresh MORB in Indian Ocean 12 Mg 8.85           wt% Klein 2004 Klein et al. 1991 Basalts 12 Mg 8.9         8 wt% Farmer 2004 Marzoli et al. 2000 Talkeetna Arc Plutonic Rocks   Mg# 86   0.2     17   Kelemen et al. 2004 Primitive Mantle 12 Mg 88.5             McDonough & Frey 1989 Anderson 1983 Periodotite Massifs   Mg# 88.7             Walter 2004 Bonatti et al. 1986 Primitive Mantle 12 Mg 88.7             McDonough & Frey 1989 Taylor & McLennan 1985 Primitive Mantle 12 Mg 88.8             McDonough 1990 McDonough & Frey 1989 Sun 1982 Primitive Mantle   Mg# 89             Walter 2004 Palme & O'Neill 2004 Primitive Mantle 12 Mg 89.1             McDonough & Frey 1989 Palme & Nickel 1985 Primitive Mantle 12 Mg 89.2             McDonough & Frey 1989 Sun 1982 Primitive Mantle 12 Mg 89.2             McDonough & Frey 1989 McDonough & Sun 1989 Pyrolites   Mg# 89.2             Walter 2004 McDonough & Sun 1995 Mantle   Mg# 89.28     88.91 89.49     Walter 2004 Mantle   Mg# 89.3             Walter 2004 Primitive Mantle 12 Mg 89.3             Workman & Hart 2005 McDonough & Sun 1995 Pyrolites   Mg# 89.3             Walter 2004 Ringwood 1979 Depleted D-MORB basalts 12 Mg 89.4             Workman & Hart 2005 Depleted MORB Mantle Olivine 12 Mg 89.5             Workman & Hart 2005 Primitive Mantle 12 Mg 89.5           wt%ox McDonough & Frey 1989 Ringwood 1979 Primitive Mantle 12 Mg 89.6             McDonough & Frey 1989 Wanke et al. 1984 Xenolites   Mg# 89.6             Walter 2004 Jagoutz et al. 1979 Depleted MORB Mantle Orthopyroxene 12 Mg 89.7             Workman & Hart 2005 Low Si-Mg Mantle   Mg# 89.8             Walter 2004 Hart & Zindler 1986 Primitive Mantle   Mg# 89.8             Walter 2004 Allegre et al. 1995 Spinel Peridotites   Mg# 89.8 90 1.1     375   McDonough 1990 Primitive Mantle 12 Mg 89.9             McDonough & Frey 1989 Hart & Zindler 1986 Solid Mars 12 Mg 9   2.6       wt% McSween, Jr. 2004 Hamilton et al. 2001 Wyatt et al. 2001 Kermadec Basalts 12 Mg 9.07         36 wt% Kelemen et al. 2004 Basalts 12 Mg 9.1         16 wt% Farmer 2004 Jung & Hoernes 2000 Cascade Basalt 12 Mg 9.12         60 wt% Kelemen et al. 2004 Mars Soil 12 Mg 9.2   0.92       wt% McSween, Jr. 2004 Wanke et al. 2001 Aleutian Basalts 12 Mg 9.22         66 wt% Kelemen et al. 2004 Honshu Basalt 12 Mg 9.29         137 wt% Kelemen et al. 2004 Kamchatka Basalt 12 Mg 9.39         78 wt% Kelemen et al. 2004 Tongan Basalts 12 Mg 9.39         70 wt% Kelemen et al. 2004 Basalts 12 Mg 9.4           wt%ox Condie 1993 CI Chondrites 12 Mg 9.4           wt% McDonough & Sun 1995 Palme 1988 Continental Arc Andesite 12 Mg 9.48         497 wt% Kelemen et al. 2004 Orgueil Chondrite 12 Mg 9.53         11 wt% Anders & Grevesse 1989 Orgueil Chondrite 12 Mg 9.55         10   Anders & Ebihara 1982 CI Chondrites 12 Mg 9.61   0.2883       wt% Palme & O'Neill 2004 Palme & Jones 2004 CI Chondrites 12 Mg 9.61   0.2883       wt% Palme & Jones 2004 Palme & Beer 1993 CI Chondrites 12 Mg 9.65           wt% McDonough & Sun 1995 Venus N-MORB 12 Mg 9.67           wt% Fegley, Jr. 2004 Wilson 1989 Australian Granite   Mg# 9.7         6   Kemp & Hawkesworth 2004 Turner et al. 1992 CI Chondrites 12 Mg 9.7           wt% McDonough & Sun 1995 Wasson & Kallemeyn 1988 Primitive Mantle   Mg/Al 9.7             McDonough & Sun 1995 Silicate Earth   Mg/Al 9.7             McDonough & Sun 1995 N-MORB 12 Mg 9.74           wt% Workman & Hart 2005 Presnall & Hoover 1987 Lower Continental Crust 12 Mg 9.79           wt% Rudnick & Gao 2004 Liu et al. 2001 Island Arc Andesite 12 Mg 9.84         503 wt% Kelemen et al. 2004 CI Chondrites 12 Mg 9.89           wt% Palme & Jones 2004 Anders & Grevesse 1989 CI Chondrites 12 Mg 9.89   0.376     15 wt% Anders & Grevesse 1989 Melitite-rich Chondrules 12 Mg 9.9     6.9 12.6 10 wt%ox Martin & Mason 1974 Mars Soil 12 Mg 9.95   0.995       wt% McSween, Jr. 2004 Wanke et al. 2001 Spinel Peridotites 12 Mg 90.1             McDonough 1990 Maaloe & Aoki 1975 Garnet Peridotites 12 Mg 90.6             McDonough 1990 Maaloe & Aoki 1975 Depleted MORB Mantle Clinopyroxene 12 Mg 90.8             Workman & Hart 2005 Garnet Peridotites 12 Mg 91.1             McDonough 1990 Jordan 1979 Barea Mesosiderite 12 Mg 91.7             Mittlefehldt 2004 Mason & Jarosewich 1973 Mittlefehldt in press South African Garnet Peridotites 12 Mg 92             McDonough 1990 Boyd & Mertzman 1987 Niger River Particulates 12 Mg 9300           µg/g Martin & Meybeck 1979 Marine Organisms 12 Mg 94000           ppm Li 1991 Bowen 1979 Kapoeta Howardites 12 Mg 95             Mittlefehldt 2004 Wanke et al. 1972 Galapagos Hydrothermal Vents 12 Mg       51.1 52.7     Edmond et al. 1979 Garnet Peridotites 12 Mg   91.6           McDonough 1991 Maaloe & Aoki 1975 Jordan 1979 Boyd 1989 McDonough 1990 Garnet Peridotites 12 Mg   44.2         wt%ox McDonough 1991 Maaloe & Aoki 1975 Jordan 1979 Boyd 1989 McDonough 1990 Halley Comet Tail   N/Mg       0.4 0.8     Brownlee 2004 Geiss 1988 Mercury Crustal Silicates 12 Mg       32 38   wt% Taylor & Scott 2004 Goettel 1988 Periodotite Section in Ophiolites 12 Mg   40.2         wt%ox McDonough 1991 Periodotite Section in Ophiolites   Mg#   89.9           McDonough 1991 Primitive Mantle 12 Mg   88.8           McDonough 1991 McDonough & Frey 1989 Sun 1982 Primitive Mantle 12 Mg   37.2         wt%ox McDonough 1991 McDonough & Frey 1989 Sun 1982 Solid Earth   Mg/Al       9.7 9.7     McDonough & Sun 1995 Spinel Peridotites 12 Mg   90           McDonough 1991 Maaloe & Aoki 1975 Jordan 1979 Boyd 1989 McDonough 1990 Spinel Peridotites 12 Mg   41.2         wt%ox McDonough 1991 Maaloe & Aoki 1975 Jordan 1979 Boyd 1989 McDonough 1990 Ureilite Primitive Achondrites 12 Mg       36.7 39.2   wt%ox Boynton et al. 1976 Mason 1971