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

	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) REE Fractionated CAI Inclusions 39 Y 1.7     0.86 3 5 ppm Martin & Mason 1974 Olivine Chondrules 39 Y 3.5     1.6 4.3 3 ppm Martin & Mason 1974 Melitite-rich Chondrules 39 Y 23     15 29 10 ppm Martin & Mason 1974 Marine Phosphorites 39 Y 260 175   20 1100 16 ppm Altschuller 1980 Depleted Mantle 39 Y 3.328     3.179 3.445   ppm Workman & Hart 2005 REE Unfractionated CAI Inclusions 39 Y 39     36 41 2 ppm Martin & Mason 1974 Marine Apatites 39 Y       40 610 9 ppm Altschuller 1980 Active Continental Rifts 39 Y 18           ppm Rudnick & Fountain 1995 Active Continental Rifts 39 Y 21           ppm Rudnick & Fountain 1995 Alaska Trench 39 Y 20.2           ppm Plank & Langmuir 1998 Alborz Mountains 39 Y 235         3 ppm Altschuller 1980 Aval et al. 1968 Aleutian Basalts 39 Y 12.9         18 ppm Kelemen et al. 2004 Aleutian Trench 39 Y 21.6           ppm Plank & Langmuir 1998 ALH 77005 Meteorite 39 Y 6.2           ppm McSween, Jr. 2004 Lodders 1998 ALH 84001 Meteorite 39 Y 1.6           ppm McSween, Jr. 2004 Lodders 1998 Allende Meteorite 39 Y 3.1           wt%ox Martin & Mason 1974 Amphibolites 39 Y 15.6         189 ppm Gao et al. 1998 Andaman Trench 39 Y 18.9           ppm Plank & Langmuir 1998 Andean Andesites 39 Y 15           ppm Weaver & Tarney 1984 Bailey 1981 Andes Basalt 39 Y 19.74         28 ppm Kelemen et al. 2004 Andesites 39 Y 23           ppm Condie 1993 Andesites 39 Y 20           ppm Condie 1993 Andesites 39 Y 20           ppm Condie 1993 Andesites 39 Y 22           ppm Condie 1993 Andesites 39 Y 25           ppm Condie 1993 Andesites 39 Y 20           ppm Condie 1993 Andesites 39 Y 20           ppm Condie 1993 Andesites 39 Y 14.85         22 ppm Kelemen et al. 2004 Andesites 39 Y 19.8         50 ppm Plank & Langmuir 1998 Plank & Langmuir 1988 Archean Amphibolites 39 Y 9           ppm Weaver & Tarney 1984 Weaver & Tarney 1981 Archean Lower Crust 39 Y 7           ppm Shaw et al. 1986 Weaver & Tarney 1984 Archean Terrains 39 Y 18           ppm Taylor & McLennan 1995 Archean Terrains 39 Y 19           ppm Taylor & McLennan 1995 Archean Terrains 39 Y 16           ppm Rudnick & Fountain 1995 Arenaceous Rocks 39 Y 20.9         121 ppm Gao et al. 1998 Arenaceous Rocks 39 Y 18         2754 ppm Gao et al. 1998 Ashy Clay 39 Y 49.9         4 ppm Plank & Langmuir 1998 Australian Granite 39 Y 10.8         13 ppm Kemp & Hawkesworth 2004 Inger & Harris 1993 Australian Granite 39 Y 32         704 ppm Kemp & Hawkesworth 2004 Chappell & White 1992 Australian Granite 39 Y 31         1074 ppm Kemp & Hawkesworth 2004 Wormald & Price 1988 Australian Granite 39 Y 79           ppm Kemp & Hawkesworth 2004 Collins et al. 1982 Australian Granite 39 Y 49         6 ppm Kemp & Hawkesworth 2004 Turner et al. 1992 Australian Granite 39 Y 22         8 ppm Kemp & Hawkesworth 2004 Whalen 1985 Baldissero Spinel Lherzolites 39 Y 2.7   0.3     14 ppm Wedepohl & Hartmann 1994 Balmuccia Spinel Lherzolites 39 Y 2.9   1.1     18 ppm Wedepohl & Hartmann 1994 Bambui Group 39 Y 100         14 ppm Altschuller 1980 Cathcart 1974 Basalts 39 Y 29.4         16 ppm Farmer 2004 Jung & Hoernes 2000 Basalts 39 Y 20.6         27 ppm Farmer 2004 Farmer et al. 2002 Basalts 39 Y 32.3         3 ppm Farmer 2004 Chung et al. 1995 Basalts 39 Y 28.3         23 ppm Farmer 2004 Paslick et al. 1995 Basalts 39 Y 31.4         8 ppm Farmer 2004 Marzoli et al. 2000 Basalts 39 Y 27.2         13 ppm Farmer 2004 Robert et al. 1992 Basalts 39 Y 34.5         44 ppm Farmer 2004 Baker et al. 1997 Basalts 39 Y 24.4         9 ppm Farmer 2004 Hoang & Flower 1998 Basalts 39 Y 27.1         7 ppm Farmer 2004 Price et al. 1997 Basalts 39 Y 24.6         4 ppm Farmer 2004 Chung 1999 Basalts 39 Y 27.9         16 ppm Farmer 2004 Rogers et al. 1998 Basalts 39 Y 17         6 ppm Farmer 2004 Turner et al. 1996a Basalts 39 Y 35.2         6 ppm Farmer 2004 Marzoli et al. 2000 Basalts 39 Y 25.8         8 ppm Farmer 2004 Zhang & O'Reilly 1997 Basalts 39 Y 21.5         12 ppm Farmer 2004 Dungan et al. 1986 Basalts 39 Y 35.7         7 ppm Farmer 2004 Conticelli et al. 1997 Basalts 39 Y 23.4         5 ppm Farmer 2004 Wilson et al. 1997 Basalts 39 Y 13.9         10 ppm Farmer 2004 Chung et al. 2001 Basalts 39 Y 26.7         3 ppm Farmer 2004 Wilson et al. 1997 Basalts 39 Y 20           ppm Condie 1993 Basalts 39 Y 28           ppm Condie 1993 Basalts 39 Y 33           ppm Condie 1993 Basalts 39 Y 27           ppm Condie 1993 Basalts 39 Y 32           ppm Condie 1993 Basalts 39 Y 23           ppm Condie 1993 Basalts 39 Y 30           ppm Condie 1993 Basic Precambrian Granulites 39 Y 47         25 ppm Shaw et al. 1986 Battle Creek Formation 39 Y 87         7 ppm Altschuller 1980 De Keyser & Cook 1972 Battle Creek Formation 39 Y 1100         17 ppm Altschuller 1980 De Keyser & Cook 1972 Bone Valley Formation 39 Y 235         8 ppm Altschuller 1980 Boninites 39 Y 7.59         68 ppm Kelemen et al. 2004 Brown Clay 39 Y 66.3         29 ppm Plank & Langmuir 1998 Brown Clay 39 Y 67.1         4 ppm Plank & Langmuir 1998 Brown Rock 39 Y 63         3 ppm Altschuller 1980 Carbonate 39 Y 31.9         13 ppm Plank & Langmuir 1998 Carbonate Turbidites 39 Y 17         87 ppm Plank & Langmuir 1998 Carbonates 39 Y 6.5         2038 ppm Gao et al. 1998 Carbonates 39 Y 3.9         50 ppm Gao et al. 1998 Carbonates 39 Y 13   0.32     162 ppm Mirota & Veizer 1994 Cascade Basalt 39 Y 20.91         22 ppm Kelemen et al. 2004 Cascadia Trench 39 Y 22.2           ppm Plank & Langmuir 1998 Central America Trench 39 Y 31.7           ppm Plank & Langmuir 1998 Central American Basalts 39 Y 18.67         29 ppm Kelemen et al. 2004 Central East China Craton 39 Y 17.1           ppm Gao et al. 1998 Central East China Craton 39 Y 17.5           ppm Gao et al. 1998 Central East China Craton 39 Y 17.4           ppm Gao et al. 1998 Central East China Craton 39 Y 17           ppm Gao et al. 1998 Central East China Craton 39 Y 16.5           ppm Gao et al. 1998 Central East China Craton 39 Y 15.5           ppm Gao et al. 1998 Central East China Craton 39 Y 16.7           ppm Gao et al. 1998 Central East China Craton 39 Y 15.5           ppm Gao et al. 1998 Central East China Craton 39 Y 16.2           ppm Gao et al. 1998 Central East China Craton 39 Y 16.6           ppm Gao et al. 1998 Central East China Craton 39 Y 17.8           ppm Gao et al. 1998 Chassigny Meteorite 39 Y 0.64           ppm McSween, Jr. 2004 Lodders 1998 Chert 39 Y 10.4           ppm Elliot et al. 1997 Chert 39 Y 26.9         4 ppm Plank & Langmuir 1998 Chert 39 Y 10.4         4 ppm Plank & Langmuir 1998 CI Chondrites 39 Y 2.25           ppm McDonough et al. 1992 CI Chondrites 39 Y 1.56   0.094     5 ppm Anders & Grevesse 1989 CI Chondrites 39 Y 1.57           ppm McDonough & Sun 1995 CI Chondrites 39 Y 1.56   0.0468       ppm Palme & O'Neill 2004 Palme & Jones 2004 CI Chondrites 39 Y 1.44           ppm McDonough & Sun 1995 Wasson & Kallemeyn 1988 CI Chondrites 39 Y 1.57           ppm McDonough & Sun 1995 Palme 1988 CI Chondrites 39 Y 1.56   0.0468       ppm Palme & Jones 2004 Palme & Beer 1993 Jochum et al. 2000 CI Chondrites 39 Y 1.56           ppm Palme & Jones 2004 Anders & Grevesse 1989 CI Chondrites 39 Y 1.57           ppm McDonough & Frey 1989 Palme et al. 1981 Anders & Ebihara 1982 Beer et al. 1984 Jochum et al. 1986 CI Chondrites 39 Y 2.21   0.04         Palme & Jones 2004 CI Chondrites   Y/Ho 28             McDonough 1990 McDonough & Frey 1989 Sun & McDonough 1989 Sun 1982 Clastic Turbidites 39 Y 22.2         28 ppm Plank & Langmuir 1998 Colombia Trench 39 Y 11.9           ppm Plank & Langmuir 1998 Continental Arc Andesite 39 Y 17.13         37 ppm Kelemen et al. 2004 Continental Arc Andesite 39 Y 18.69         141 ppm Kelemen et al. 2004 Continental Arcs 39 Y 19           ppm Rudnick & Fountain 1995 Continental Arcs 39 Y 15           ppm Rudnick & Fountain 1995 Continental Crust 39 Y 14           µg/g Rudnick & Gao 2004 Weaver & Tarney 1984 Continental Crust 39 Y 20           µg/g Rudnick & Gao 2004 Rudnick & Fountain 1995 Continental Crust 39 Y 19           µg/g Rudnick & Gao 2004 Rudnick & Fountain 1995 Continental Crust 39 Y 26           µg/g Rudnick & Gao 2004 Shaw et al. 1986 Continental Crust 39 Y 24           µg/g Rudnick & Gao 2004 Wedepohl 1995 Continental Crust 39 Y 24           ppm Wedepohl 1995 Continental Crust 39 Y 20           ppm Taylor & McLennan 1995 Continental Crust 39 Y 20           ppm Rudnick & Fountain 1995 Continental Crust 39 Y 14           ppm Weaver & Tarney 1984 Continental Crust 39 Y 22           ppm Weaver & Tarney 1984 Taylor & McLennan 1981 Continental Crust 39 Y 26           ppm Shaw et al. 1986 Continental Crust 39 Y 24.4           ppm Wedepohl & Hartmann 1994 Wedepohl 1991 Continental Crust 39 Y 19           ppm Kemp & Hawkesworth 2004 Rudnick & Gao 2004 Continental Crust 39 Y 24           ppm Rudnick & Fountain 1995 Wedepohl 1995 Continental Crust 39 Y 19           µg/g Rudnick & Gao 2004 Continental Crust 39 Y 20           µg/g Rudnick & Gao 2004 Taylor & McLennan 1985 Taylor & McLennan 1995 Continental Crust 39 Y 33           µg/g Rudnick & Gao 2004 Taylor 1964 Continental Crust 39 Y 17.5           µg/g Rudnick & Gao 2004 Gao et al. 1998a Continental Crust 39 Y 20           ppb Palme & O'Neill 2004 Rudnick & Gao 2004 Continental Intraplate Xenoliths 39 Y 0.045           ppm Pearson et al. 2004 Eggins et al. 1998 Continental Intraplate Xenoliths 39 Y 9.04           ppm Pearson et al. 2004 Glaser et al. 1999 Continental Intraplate Xenoliths 39 Y 92           ppm Pearson et al. 2004 Bedini & Bodinier 1999 Continental Intraplate Xenoliths 39 Y 1.07           ppm Pearson et al. 2004 Eggins et al. 1998 Continental Intraplate Xenoliths 39 Y 21.1           ppm Pearson et al. 2004 Eggins et al. 1998 Continental Intraplate Xenoliths 39 Y 12.3           ppm Pearson et al. 2004 Eggins et al. 1998 Continental Intraplate Xenoliths 39 Y 0.0005           ppm Pearson et al. 2004 Bedini & Bodinier 1999 Continental Intraplate Xenoliths 39 Y 0.2           ppm Pearson et al. 2004 Eggins et al. 1998 Continental Intraplate Xenoliths 39 Y 0.78           ppm Pearson et al. 2004 Glaser et al. 1999 Continental Intraplate Xenoliths 39 Y 147           ppm Pearson et al. 2004 Bedini & Bodinier 1999 Continental Intraplate Xenoliths 39 Y 20.3           ppm Pearson et al. 2004 Johnson et al. 1996 Continental Intraplate Xenoliths 39 Y 22.1           ppm Pearson et al. 2004 Gregoire et al. 2002 Continental Intraplate Xenoliths 39 Y 0.04           ppm Pearson et al. 2004 Bedini & Bodinier 1999 Continental Intraplate Xenoliths 39 Y 17.1           ppm Pearson et al. 2004 Bedini & Bodinier 1999 Continental Intraplate Xenoliths 39 Y 0.71           ppm Pearson et al. 2004 Ionov 1998 Continental Intraplate Xenoliths 39 Y 0.95           ppm Pearson et al. 2004 Bedini & Bodinier 1999 Continental Shields & Platforms 39 Y 19           ppm Rudnick & Fountain 1995 Continental Shields & Platforms 39 Y 16           ppm Rudnick & Fountain 1995 Core 39 Y 0           µg/g McDonough 1998 Cratonic Xenoliths 39 Y 0.884           ppm Pearson et al. 2004 Cratonic Xenoliths 39 Y 1.09           ppm Pearson et al. 2004 Cratonic Xenoliths 39 Y 0.02           ppm Pearson et al. 2004 Cratonic Xenoliths 39 Y 1.64           ppm Pearson et al. 2004 Gregoire et al. 2002 Cratonic Xenoliths 39 Y 0.28           ppm Pearson et al. 2004 Gregoire et al. 2002 Cratonic Xenoliths 39 Y 7.7           ppm Pearson et al. 2004 Gergoire et al. 2002 Cratonic Xenoliths 39 Y 1.69           ppm Pearson et al. 2004 Stachel et al. 1998 Cratonic Xenoliths 39 Y 303           ppm Pearson et al. 2004 Cratonic Xenoliths 39 Y 0.65           ppm Pearson et al. 2004 Gregoire et al. 2002 Cratonic Xenoliths 39 Y 0.205           ppm Pearson et al. 2004 Cratonic Xenoliths 39 Y 6.37           ppm Pearson et al. 2004 Cratonic Xenoliths 39 Y 2.01           ppm Pearson et al. 2004 Cratonic Xenoliths 39 Y 3.04           ppm Pearson et al. 2004 Cratonic Xenoliths 39 Y 0.017           ppm Pearson et al. 2004 Depleted D-MORB basalts   Y/Yb 10.144             Salters & Stracke 2004 Depleted Mantle 39 Y 4.07   0.4884       ppm Salters & Stracke 2004 Depleted-Depleted MORB Mantle 39 Y 3.129           ppm Workman & Hart 2005 Diatom Oozes & Clay 39 Y 15         15 ppm Plank & Langmuir 1998 Diatome Clay 39 Y 21.2         6 ppm Plank & Langmuir 1998 Diatome Mud 39 Y 31.1         6 ppm Plank & Langmuir 1998 Diatome Ooze 39 Y 21.4         4 ppm Plank & Langmuir 1998 Diorite 39 Y 17.2         260 ppm Gao et al. 1998 DSDP/ODP Site 800 39 Y 29.8           ppm Plank & Langmuir 1998 DSDP/ODP Site 801 39 Y 22           ppm Elliot et al. 1997 DSDP/ODP Site 801 39 Y 22           ppm Plank & Langmuir 1998 E-MORB 39 Y 29           ppm Klein 2004 Lehnert 2000 Early Archean Upper Crust 39 Y 17           ppm Condie 1993 Early Archean Upper Crust 39 Y 18           ppm Condie 1993 Early Archean Upper Crust   Zr/Y 8.5             Condie 1993 Early Archean Upper Crust   Zr/Y 7.7             Condie 1993 Early Proterozoic Upper Crust 39 Y 32           ppm Condie 1993 Early Proterozoic Upper Crust 39 Y 30           ppm Condie 1993 Early Proterozoic Upper Crust   Zr/Y 5.7             Condie 1993 Early Proterozoic Upper Crust   Zr/Y 5.7             Condie 1993 East China Craton 39 Y 16.6           ppm Gao et al. 1998 East China Craton 39 Y 17.5           ppm Gao et al. 1998 East Sunda Trench 39 Y 24.6           ppm Plank & Langmuir 1998 Enriched-Depleted MORB Mantle 39 Y 3.548           ppm Workman & Hart 2005 Felsic Archean Granulites 39 Y 24 11       286 ppm Rudnick & Fountain 1995 Felsic Granulites 39 Y 12.7         137 ppm Gao et al. 1998 Felsic Post-Archean Granulites 39 Y 35 22       151 ppm Rudnick & Fountain 1995 Felsic Volcanics 39 Y 38           ppm Condie 1993 Felsic Volcanics 39 Y 33           ppm Condie 1993 Felsic Volcanics 39 Y 37           ppm Condie 1993 Felsic Volcanics 39 Y 45           ppm Condie 1993 Felsic Volcanics 39 Y 40           ppm Condie 1993 Felsic Volcanics 39 Y 19.9         972 ppm Gao et al. 1998 Felsic Volcanics 39 Y 35           ppm Condie 1993 Felsic Volcanics 39 Y 38           ppm Condie 1993 Fresh Mid-Ocean Ridge Basalts 39 Y 27.48         46 ppm Kelemen et al. 2004 Fresh Mid-Ocean Ridge Basalts   Y/Yb 10.07             Salters & Stracke 2004 Fresh MORB in Indian Ocean 39 Y 24.4           ppm Klein 2004 Klein et al. 1991 Granites 39 Y 20.1         8 ppm Kemp & Hawkesworth 2004 Kemp 2001 Granites 39 Y 21           ppm Kemp & Hawkesworth 2004 Sylvester 1995 Granites 39 Y 45           ppm Condie 1993 Granites 39 Y 20           ppm Condie 1993 Granites 39 Y 45           ppm Condie 1993 Granites 39 Y 19.3         1226 ppm Gao et al. 1998 Granites 39 Y 21.4         402 ppm Gao et al. 1998 Granulites 39 Y 7           ppm Weaver & Tarney 1984 Weaver & Tarney 1982 Granulites 39 Y 39 26       342 ppm Rudnick & Presper 1990 Granulites 39 Y 25 16       490 ppm Rudnick & Presper 1990 Granulitic Xenolites 39 Y 20 18       180 ppm Rudnick & Presper 1990 Graywackes 39 Y 27           ppm Condie 1993 Graywackes 39 Y 28           ppm Condie 1993 Graywackes 39 Y 24           ppm Condie 1993 Graywackes 39 Y 28           ppm Condie 1993 Graywackes 39 Y 25           ppm Condie 1993 Graywackes 39 Y 25           ppm Condie 1993 Greater Antilles Basalt 39 Y 13.15         16 ppm Kelemen et al. 2004 Green Clay 39 Y 21.1         3 ppm Plank & Langmuir 1998 Greywackes 39 Y 26           ppm Wedepohl 1995 Honshu Basalt 39 Y 22.54         21 ppm Kelemen et al. 2004 Hydrothermal Sediment 39 Y 153.8         4 ppm Plank & Langmuir 1998 Interior North China Craton 39 Y 14.8           ppm Gao et al. 1998 Interior North China Craton 39 Y 14           ppm Gao et al. 1998 Interior North China Craton 39 Y 15.9           ppm Gao et al. 1998 Interior North China Craton 39 Y 16.1           ppm Gao et al. 1998 Interior North China Craton 39 Y 17.3           ppm Gao et al. 1998 Interlayerd Clay & Chert 39 Y 32.5         2 ppm Plank & Langmuir 1998 Interlayered Chert & Limestone 39 Y 14.5         5 ppm Plank & Langmuir 1998 Interlayered Clay & Chert 39 Y 153         12 ppm Plank & Langmuir 1998 Intermediate Granulites 39 Y 14.4         136 ppm Gao et al. 1998 Intermediate Mafic Archean Granulites 39 Y 22 20       85 ppm Rudnick & Fountain 1995 Intermediate Mafic Granulitic Xenolites 39 Y 23 17       25 ppm Rudnick & Fountain 1995 Intermediate Mafic Post-Archean Granulites 39 Y 30 24       86 ppm Rudnick & Fountain 1995 Intermediate Precambrian Granulites 39 Y 32         26 ppm Shaw et al. 1986 Island Arc Andesite 39 Y 20.34         25 ppm Kelemen et al. 2004 Island Arc Andesite 39 Y 19.47         145 ppm Kelemen et al. 2004 Island Arcs 39 Y 19         323 ppm Kemp & Hawkesworth 2004 Silver & Chappell 1998 Island Arcs 39 Y 22           ppm Taylor & McLennan 1995 Izu-Bonin Trench 39 Y 46           ppm Plank & Langmuir 1998 Japan Trench 39 Y 28.9           ppm Plank & Langmuir 1998 Java Trench 39 Y 32.6           ppm Plank & Langmuir 1998 Kamchatka Basalt 39 Y 19.54         32 ppm Kelemen et al. 2004 Kamchatka Trench 39 Y 22.6           ppm Plank & Langmuir 1998 Karatau 39 Y 215         10 ppm Altschuller 1980 Kholodov 1963 Kerm Trench 39 Y 75           ppm Plank & Langmuir 1998 Kermadec Basalts 39 Y 20.4         10 ppm Kelemen et al. 2004 Kimberlite 39 Y 10         22 ppm Farmer 2004 Taylor et al. 1994 Komatiites 39 Y 8           ppm Condie 1993 Kuriles Trench 39 Y 28.9           ppm Plank & Langmuir 1998 Kyzyl Kum 39 Y 20         5 ppm Altschuller 1980 Kapustyanski 1964 La Caja Formation 39 Y 136         8 ppm Altschuller 1980 Rogers et al. 1956 Late Archean Upper Crust 39 Y 20           ppm Condie 1993 Late Archean Upper Crust 39 Y 18           ppm Condie 1993 Late Archean Upper Crust   Zr/Y 8.4             Condie 1993 Late Archean Upper Crust   Zr/Y 7.6             Condie 1993 Late Proterozoic Upper Crust 39 Y 31           ppm Condie 1993 Late Proterozoic Upper Crust 39 Y 30           ppm Condie 1993 Late Proterozoic Upper Crust   Zr/Y 5.7             Condie 1993 Late Proterozoic Upper Crust   Zr/Y 5.7             Condie 1993 Lesser Antilles Basalt 39 Y 17.45         54 ppm Kelemen et al. 2004 Lower Continental Crust 39 Y 19           µg/g Rudnick & Gao 2004 Taylor & McLennan 1985 Taylor & McLennan 1995 Lower Continental Crust 39 Y 16           ppm Kemp & Hawkesworth 2004 Rudnick & Gao 2004 Lower Continental Crust 39 Y 22           ppm Shaw et al. 1986 Taylor & McLennan 1981 Lower Continental Crust 39 Y 30           ppm Shaw et al. 1986 Lower Continental Crust 39 Y 18           µg/g Rudnick & Gao 2004 Gao et al. 1998a Lower Continental Crust 39 Y 27           µg/g Rudnick & Gao 2004 Wedepohl 1995 Lower Continental Crust 39 Y 16           µg/g Rudnick & Gao 2004 Rudnick & Fountain 1995 Lower Continental Crust 39 Y 28           µg/g Rudnick & Gao 2004 Rudnick & Taylor 1987 Lower Continental Crust 39 Y 16           µg/g Rudnick & Gao 2004 Shaw et al. 1994 Lower Continental Crust 39 Y 7           µg/g Rudnick & Gao 2004 Weaver & Tarney 1984 Lower Continental Crust 39 Y 20           µg/g Rudnick & Gao 2004 Rudnick & Presper 1990 Lower Continental Crust 39 Y 8           µg/g Rudnick & Gao 2004 Liu et al. 2001 Lower Continental Crust 39 Y 40           µg/g Rudnick & Gao 2004 Villaseca et al. 1999 Lower Continental Crust 39 Y 16           µg/g Rudnick & Gao 2004 Rudnick & Fountain 1995 Lower Continental Crust 39 Y 27.2           ppm Wedepohl 1995 Lower Continental Crust 39 Y 19           ppm Taylor & McLennan 1995 Lower Continental Crust 39 Y 16           ppm Rudnick & Fountain 1995 Luzon Basalt 39 Y 16.1         10 ppm Kelemen et al. 2004 Mafic Archean Granulites 39 Y 25 22       73 ppm Rudnick & Fountain 1995 Mafic Granulites 39 Y 19.8         128 ppm Gao et al. 1998 Mafic Granulitic Xenolites 39 Y 16 13       151 ppm Rudnick & Fountain 1995 Mafic Intrusions 39 Y 14.1         308 ppm Gao et al. 1998 Mafic Post-Archean Granulites 39 Y 39 31       47 ppm Rudnick & Fountain 1995 Makran Trench 39 Y 39.8           ppm Plank & Langmuir 1998 Manganese Nodules 39 Y 150           ppm Li 1991 Baturin 1988 Marianas Basalt 39 Y 24.14         21 ppm Kelemen et al. 2004 Marianas Trench 39 Y 25.9           ppm Plank & Langmuir 1998 Marine Apatites 39 Y 275         9 ppm Altschuller 1980 Marine Pelagic Clay 39 Y 60           ppm Li 1991 Turekian & Wedepohl 1961 Rankin & Glasby 1979 Marine Pelagic Clay 39 Y 90           ppm Li 1982 Marine Phosphorites   Y/La 1.8             Altschuller 1980 Marine Shales 39 Y 38.4         9 ppm Altschuller 1980 Hermann 1970 Marine Shales 39 Y 26           ppm Altschuller 1980 Turekian & Wedepohl 1961 Marine Shales 39 Y 26           ppm Li 1991 Turekian & Wedepohl 1961 Marine Shales   Y/La 0.85             Altschuller 1980 Turekian & Wedepohl 1961 Marine Shales   Y/RE 0.15             Altschuller 1980 Turekian & Wedepohl 1961 Mavic Volcanics 39 Y 18.4         632 ppm Gao et al. 1998 Mead Peak Phosphatic Shale Member 39 Y 0.03         41 ppm Gulbrandsen 1966 Mesozoic & Cenozoic Extensions 39 Y 20           ppm Rudnick & Fountain 1995 Mesozoic & Cenozoic Extensions 39 Y 22           ppm Rudnick & Fountain 1995 Mesozoic & Cenozoic Orogens 39 Y 20           ppm Rudnick & Fountain 1995 Mesozoic & Cenozoic Orogens 39 Y 22           ppm Rudnick & Fountain 1995 Mesozoic & Cenozoic Upper Crust 39 Y 29           ppm Condie 1993 Mesozoic & Cenozoic Upper Crust 39 Y 30           ppm Condie 1993 Mesozoic & Cenozoic Upper Crust   Zr/Y 5.7             Condie 1993 Mesozoic & Cenozoic Upper Crust   Zr/Y 5.8             Condie 1993 Metafelsic Volcanics 39 Y 16.2         41 ppm Gao et al. 1998 Metalliferous Clay 39 Y 316.1         12 ppm Plank & Langmuir 1998 Metapelitic Granulitic Xenolites 39 Y 44 33       35 ppm Rudnick & Fountain 1995 Mexico Trench 39 Y 42.2           ppm Plank & Langmuir 1998 Middle Continental Crust 39 Y 22           µg/g Rudnick & Gao 2004 Rudnick & Fountain 1995 Middle Continental Crust 39 Y 16           µg/g Rudnick & Gao 2004 Shaw et al. 1994 Middle Continental Crust 39 Y 17           µg/g Rudnick & Gao 2004 Gao et al. 1998 Middle Continental Crust 39 Y 20   4       µg/g Rudnick & Gao 2004 Middle Continental Crust 39 Y 9           µg/g Rudnick & Gao 2004 Weaver & Tarney 1984 Middle Continental Crust 39 Y 20           ppm Kemp & Hawkesworth 2004 Rudnick & Gao 2004 Middle Continental Crust 39 Y 22           ppm Rudnick & Fountain 1995 Middle Proterozoic Upper Crust 39 Y 30           ppm Condie 1993 Middle Proterozoic Upper Crust 39 Y 32           ppm Condie 1993 Middle Proterozoic Upper Crust   Zr/Y 5.7             Condie 1993 Middle Proterozoic Upper Crust   Zr/Y 5.7             Condie 1993 Mishash Formation 39 Y 70         3 ppm Altschuller 1980 Mazor 1963 Monterey Formation 39 Y 120         5 ppm Altschuller 1980 MORB Basaltic Glass 39 Y 43.9           ppm Klein 2004 Lehnert 2000 MORB Basaltic Glass 39 Y 39.7           ppm Klein 2004 Lehnert 2000 MORB Basaltic Glass 39 Y 38.9           ppm Klein 2004 Lehnert 2000 N-MORB 39 Y 25           ppm Klein 2004 Lehnert 2000 N-MORB 39 Y 20.6           ppm Klein 2004 Lehnert 2000 N-MORB 39 Y 27.2           ppm Klein 2004 Niu et al. 1999 N-MORB 39 Y 35.82           ppm Hart et al. 1999 Hofmann 1988 Ito et al. 1987 Smith et al. 1995 Hauri & Hart 1997 N-MORB 39 Y 35.82   11.176     26 ppm Hofmann 1988 Jochum et al. 1988 N-MORB 39 Y 36           ppm Klein 2004 Thompson et al. 1980 Nakhla Meteorite 39 Y 3.3   1.1       ppm McSween, Jr. 2004 Lodders 1998 Nankai Trench 39 Y 36.8           ppm Plank & Langmuir 1998 Nanno Ooze 39 Y 24.5         2 ppm Plank & Langmuir 1998 Nano Ooze 39 Y 16.5         4 ppm Plank & Langmuir 1998 New Hebrides Islands 39 Y 17.86         21 ppm Kelemen et al. 2004 North American Shale Composite (NASC) 39 Y 35           ppm Condie 1993 North Antilles Trench 39 Y 23.9           ppm Plank & Langmuir 1998 North Qinling Belt in China 39 Y 18.8           ppm Gao et al. 1998 North Qinling Belt in China 39 Y 16.7           ppm Gao et al. 1998 North Qinling Belt in China 39 Y 19.2           ppm Gao et al. 1998 North Qinling Belt in China 39 Y 17.6           ppm Gao et al. 1998 North Qinling Belt in China 39 Y 18           ppm Gao et al. 1998 Northern Blake Plateau Phosphorites 39 Y 0.0179           wt% Manheim et al. 1980 Ehrlich 1968 Oceanic Crust 39 Y 29           ppm Wedepohl & Hartmann 1994 Wedepohl 1981 Oceanic Crust 39 Y 35.8           ppm Wedepohl & Hartmann 1994 Hofmann 1988 Oceanic Plateaus 39 Y 21           ppm Kerr 2004 Hauff et al. 2000 Oceanic Plateaus 39 Y 19           ppm Kerr 2004 Kerr et al. 2002 Oceanic Plateaus 39 Y 25           ppm Kerr 2004 Tejada et al. 2002 Oceanic Plateaus 39 Y 41.7           ppm Kerr 2004 Kerr et al. 1997 Hauff et al. 2000 Oceanic Plateaus 39 Y 22           ppm Kerr 2004 Tejada et al. 1996 Oceanic Plateaus 39 Y 29.4           ppm Kerr 2004 Kerr et al. 1997 Hauff et al. 2000 Oceanic Plateaus 39 Y 27.7           ppm Kerr 2004 Salters et al. 1992 Oceanic Plateaus 39 Y 23           ppm Kerr 2004 Tejada et al. 2002 Oceanic Plateaus 39 Y 15.8           ppm Kerr 2004 Kerr et al. 1996 Oceanic Plateaus 39 Y 13.8           ppm Kerr 2004 Aitken & Echeverria 1984 Dupre & Echeverria 1984 Jochum et al. 1991 Oceanic Plateaus 39 Y 29.3           ppm Kerr 2004 Salters et al. 1992 Oceanic Plateaus 39 Y 11.5           ppm Kerr 2004 Kerr et al. 1996 Oceanic Plateaus 39 Y 22.3           ppm Kerr 2004 Reynaud et al. 1999 Oceanic Plateaus 39 Y 24.6           ppm Kerr 2004 Salters et al. 1992 Oceanic Plateaus 39 Y 22.8           ppm Kerr 2004 Aitken & Echeverria 1984 Dupre & Echeverria 1984 Jochum et al. 1991 Oceanic Plateaus 39 Y 28.8           ppm Kerr 2004 Mahoney et al. 1995 Oceanic Plateaus 39 Y 15.3           ppm Kerr 2004 Oceanic Plateaus 39 Y 24           ppm Kerr 2004 Mahoney et al. 1993 Oceanic Plateaus 39 Y 23.2           ppm Kerr 2004 Salters et al. 1992 Oceanic Plateaus 39 Y 30           ppm Kerr 2004 Mahoney et al. 1993 Oceans Deep water 39 Y 13           ng/kg Quinby-Hunt & Turekian 1983 Hogdahl et al. 1968 ODP Site 735 39 Y 26.9 24.3       22 ppm Hart et al. 1999 ODP/DSDP Site 417/418 39 Y 26.9           ppm Staudigel et al. 1996 Orgueil Chondrite 39 Y 1.5         2 ppm Anders & Ebihara 1982 Orgueil Chondrite 39 Y 1.53         4 ppm Anders & Grevesse 1989 Oulad Abdoun Basin 39 Y 700         4 ppm Altschuller 1980 Paleozoic Orogens 39 Y 20           ppm Rudnick & Fountain 1995 Paleozoic Orogens 39 Y 18           ppm Rudnick & Fountain 1995 Paleozoic Upper Crust 39 Y 30           ppm Condie 1993 Paleozoic Upper Crust 39 Y 31           ppm Condie 1993 Paleozoic Upper Crust   Zr/Y 5.5             Condie 1993 Paleozoic Upper Crust   Zr/Y 5.5             Condie 1993 Pelagic Clay 39 Y 26         56 ppm Plank & Langmuir 1998 Pelagic Clay 39 Y 192         6 ppm Plank & Langmuir 1998 Pelagic Clay 39 Y 45.5         8 ppm Plank & Langmuir 1998 Pelagic Clay 39 Y 26         56 ppm Plank & Langmuir 1998 Pelagic Clay 39 Y 385.1         6 ppm Plank & Langmuir 1998 Pelagic Clay 39 Y 192           ppm Elliot et al. 1997 Pelagic Clay 39 Y 36.8         55 ppm Plank & Langmuir 1998 Pelagic Clay 39 Y 55.7         3 ppm Plank & Langmuir 1998 Pelites 39 Y 22.8         69 ppm Gao et al. 1998 Pelites 39 Y 24.2         1341 ppm Gao et al. 1998 Peninsular Range Batholith 39 Y 7           ppm Kemp & Hawkesworth 2004 Sylvester 1995 Peru Trench 39 Y 27           ppm Plank & Langmuir 1998 Phanerozoic Flood Basalts   Ti/Y 578         1   Farmer 2004 Peate 1997 Phanerozoic Flood Basalts   Ti/Y 451         18   Farmer 2004 Lightfoot et al. 1990 Phanerozoic Flood Basalts   Ti/Y 332         31   Farmer 2004 Hooper & Hawkesworth 1993 Phanerozoic Flood Basalts   Ti/Y 395         3   Farmer 2004 Wooden et al. 1993 Phanerozoic Flood Basalts   Ti/Y 283         1   Farmer 2004 Peate 1997 Phanerozoic Flood Basalts   Ti/Y 468         6   Farmer 2004 Lightfoot et al. 1990 Phanerozoic Flood Basalts   Ti/Y 248         1   Farmer 2004 Peate 1997 Phanerozoic Flood Basalts   Ti/Y 216         5   Farmer 2004 Wooden et al. 1993 Phanerozoic Flood Basalts 39 Y 30         6 ppm Farmer 2004 Lightfoot et al. 1990 Phanerozoic Flood Basalts 39 Y 35.6         36 ppm Farmer 2004 Hooper & Hawkesworth 1993 Phanerozoic Flood Basalts 39 Y 27         9 ppm Farmer 2004 Wooden et al. 1993 Phanerozoic Flood Basalts 39 Y 42         18 ppm Farmer 2004 Lightfoot et al. 1990 Phanerozoic Flood Basalts 39 Y 39         1 ppm Farmer 2004 Peate 1997 Phanerozoic Flood Basalts 39 Y 23         1 ppm Farmer 2004 Peate 1997 Phanerozoic Flood Basalts 39 Y 29         1 ppm Farmer 2004 Peate 1997 Phanerozoic Flood Basalts 39 Y 24         7 ppm Farmer 2004 Wooden et al. 1993 Philip Trench 39 Y 70.6           ppm Plank & Langmuir 1998 Phosphoria Formation 39 Y   300         ppm Gulbrandsen 1966 Phosphoria Formation 39 Y 300         60 ppm Altschuller 1980 Gulbrandsen 1966 Phosphoria Formation 39 Y 0.1         61 ppm Gulbrandsen 1966 Precambrian Canadian Shield 39 Y 21           ppm Shaw et al. 1986 Precambrian Granulites 39 Y 30         88 ppm Shaw et al. 1986 Primitive Mantle 39 Y 4.6           ppm Wedepohl & Hartmann 1994 Jagoutz et al. 1979 Primitive Mantle 39 Y 3.94           ppm Wedepohl & Hartmann 1994 Hofmann 1988 Primitive Mantle 39 Y 3.88           ppm McDonough & Frey 1989 Hart & Zindler 1986 Primitive Mantle 39 Y 4.3   0.43       ppm McDonough & Sun 1995 Primitive Mantle 39 Y 4.37   0.437       ppm Palme & O'Neill 2004 Primitive Mantle 39 Y 4.37           ppb Palme & O'Neill 2004 Primitive Mantle 39 Y 4.2           ppm Wedepohl & Hartmann 1994 Primitive Mantle 39 Y 3.6           ppm Wedepohl & Hartmann 1994 Wedepohl 1991 Primitive Mantle 39 Y 4.47           ppm McDonough & Frey 1989 McDonough & Sun 1989 Primitive Mantle 39 Y 3.94           ppm Hofmann 1988 Hart & Zindler 1986 Primitive Mantle 39 Y 3.4           ppm McDonough & Frey 1989 Taylor & McLennan 1985 Primitive Mantle 39 Y 4.63           ppm McDonough & Frey 1989 Sun 1982 Primitive Mantle   Y/Ho 28             McDonough 1990 McDonough & Frey 1989 Sun & McDonough 1989 Sun 1982 Protolith Gabbros at ODP Site 735 39 Y 16.92         8 ppm Hart et al. 1999 Pungo River Formation 39 Y 300         2 ppm Altschuller 1980 QUE 94201 Meteorite 39 Y 31           ppm McSween, Jr. 2004 Lodders 1998 Radiolarian Clay 39 Y 53.1         2 ppm Plank & Langmuir 1998 Radiolarian Clay 39 Y 29.2         8 ppm Plank & Langmuir 1998 Radiolarian Clay 39 Y 29.2         8 ppm Plank & Langmuir 1998 Radiolarites 39 Y 6.8         4 ppm Plank & Langmuir 1998 Radiolarites 39 Y 17.3         17 ppm Plank & Langmuir 1998 Radiolarites 39 Y 6.8           ppm Elliot et al. 1997 Retort Phosphatic Shale Member 39 Y 0.1         20 ppm Gulbrandsen 1966 Rifted Continental Margins 39 Y 15           ppm Rudnick & Fountain 1995 Rifted Continental Margins 39 Y 20           ppm Rudnick & Fountain 1995 Ryuku Trench 39 Y 238.6           ppm Plank & Langmuir 1998 Sandstones 39 Y 5.8           ppm Condie 1993 Sandstones 39 Y 6.8           ppm Condie 1993 Sandstones 39 Y 10.3           ppm Condie 1993 Scotia Island Basalt 39 Y 23.29         16 ppm Kelemen et al. 2004 Seawater 39 Y 13           ng/kg Quinby-Hunt & Turekian 1983 Hogdahl et al. 1968 Seawater 39 Y 0.00015             Broeker & Peng 1982 Seawater 39 Y 0.0013           ppb Li 1982 Seawater 39 Y 13             Li 1991 Whitfield & Turner 1987 Seawater 39 Y 0.15             Bruland 1983 Shales 39 Y 35           ppm Condie 1993 Shales 39 Y 28           ppm Condie 1993 Shales 39 Y 33           ppm Condie 1993 Shergotty Meteorite 39 Y 19           ppm McSween, Jr. 2004 Lodders 1998 Silicate Earth 39 Y 3.4           ppm McDonough et al. 1992 Taylor & McLennan 1985 Silicate Earth 39 Y 4.3           µg/g McDonough 1998 Silicate Earth 39 Y 4.3   0.43       ppm McDonough & Sun 1995 Silicate Earth 39 Y 3.94           ppm McDonough et al. 1992 Hofmann 1988 Silicate Earth 39 Y 4.55           ppm McDonough et al. 1992 Sun 1982 Sun & McDonough 1989 McDonough & Frey 1989 Silicate Earth 39 Y 4.3           ppm McDonough 2004 Silicic Precambrian Granulites 39 Y 19         23 ppm Shaw et al. 1986 Silicified Limestone 39 Y 14           ppm Plank & Langmuir 1998 Silty Mud 39 Y 28         16 ppm Plank & Langmuir 1998 Slope Lisbourne Group 39 Y 300         4 ppm Altschuller 1980 Patton & Matzko 1959 Solar Photosphere 39 Y 2.24   0.03         Anders & Grevesse 1989 Solar Photosphere 39 Y 2.24   0.03         Palme & Jones 2004 Grevesse & Sauval 1998 Solar System 39 Y 4.64   0.278     5   Anders & Grevesse 1989 Solar System 39 Y 4.8             Anders & Ebihara 1982 Cameron 1982 Solar System 39 Y 4.64   0.38     3   Anders & Ebihara 1982 Solid Earth 39 Y 2.9           ppm McDonough 2004 Solid Earth 39 Y 2.9           µg/g McDonough 1998 South Antilles Trench 39 Y 28.7           ppm Plank & Langmuir 1998 South Margin of North China Craton 39 Y 17.4           ppm Gao et al. 1998 South Margin of North China Craton 39 Y 16.3           ppm Gao et al. 1998 South Margin of North China Craton 39 Y 15.7           ppm Gao et al. 1998 South Margin of North China Craton 39 Y 16.4           ppm Gao et al. 1998 South Margin of North China Craton 39 Y 17.1           ppm Gao et al. 1998 South Qinling Belt in China 39 Y 17.7           ppm Gao et al. 1998 South Qinling Belt in China 39 Y 16.6           ppm Gao et al. 1998 South Qinling Belt in China 39 Y 17.5           ppm Gao et al. 1998 South Qinling Belt in China 39 Y 16.7           ppm Gao et al. 1998 South Sandwich Trench 39 Y 15           ppm Plank & Langmuir 1998 Spinel Peridotites 39 Y 4.4 3.1 5.5     86 ppm McDonough 1990 Spinel Peridotites   Y/Ho 26 25 16     16   McDonough 1990 Subducted Sediment 39 Y 29.8   9.92       ppm Plank & Langmuir 1998 Sumatra Trench 39 Y 22.1           ppm Plank & Langmuir 1998 Talkeetna Arc Plutonic Rocks 39 Y 9.8   0.2     31 ppm Kelemen et al. 2004 Talkeetna Arc Plutonic Rocks 39 Y 2.8   0.1     17 ppm Kelemen et al. 2004 Talkeetna Arc Plutonic Rocks 39 Y 17   2     7 ppm Kelemen et al. 2004 Talkeetna Arc Plutonic Rocks 39 Y 15.728   2.143     6 ppm Kelemen et al. 2004 Talkeetna Arc Plutonic Rocks 39 Y 9.472   0.24     31 ppm Kelemen et al. 2004 Talkeetna Arc Plutonic Rocks 39 Y 2.03   0.095     16 ppm Kelemen et al. 2004 Talkeetna Arc Plutonic Rocks 39 Y 30.467   1.356     13 ppm Kelemen et al. 2004 Talkeetna Arc Plutonic Rocks 39 Y 16   2     6 ppm Kelemen et al. 2004 Talkeetna Arc Plutonic Rocks 39 Y 29.107   0.303     42 ppm Kelemen et al. 2004 Talkeetna Arc Plutonic Rocks 39 Y 28.8   0.1     86 ppm Kelemen et al. 2004 Talkeetna Arc Plutonic Rocks 39 Y 31   1     13 ppm Kelemen et al. 2004 Talkeetna Arc Plutonic Rocks 39 Y 17.415   1.45     7 ppm Kelemen et al. 2004 Tamalyk Krasnoyarsk 39 Y 100         38 ppm Altschuller 1980 Chaikina & Nikolskaya 1970 Tonalites 39 Y 22           ppm Wedepohl 1995 Tonalites-Trondhjemites-Granodiorites 39 Y 7.5         355 ppm Kemp & Hawkesworth 2004 Martin 1995 Tonalites-Trondhjemites-Granodiorites 39 Y 13           ppm Condie 1993 Tonalites-Trondhjemites-Granodiorites 39 Y 25           ppm Condie 1993 Tonalites-Trondhjemites-Granodiorites 39 Y 25           ppm Condie 1993 Tonalites-Trondhjemites-Granodiorites 39 Y 11.5         553 ppm Gao et al. 1998 Tonalites-Trondhjemites-Granodiorites 39 Y 14.9         641 ppm Gao et al. 1998 Tonga Trench 39 Y 173           ppm Plank & Langmuir 1998 Tongan Basalts 39 Y 16.64         11 ppm Kelemen et al. 2004 Transitional Mid-Ocean Ridge Basalts 39 Y 32           ppm Klein 2004 Lehnert 2000 Turbidites 39 Y 19.03         4 ppm Plank & Langmuir 1998 Turbidites 39 Y 20.5         4 ppm Plank & Langmuir 1998 Ultrabasic Precambrian Granulites 39 Y 46         14 ppm Shaw et al. 1986 Upper Continental Crust 39 Y 21           µg/g Rudnick & Gao 2004 Upper Continental Crust 39 Y 24           ppm Condie 1993 Upper Continental Crust 39 Y 22           ppm Taylor & McLennan 1995 Upper Continental Crust 39 Y 20.7           ppm Wedepohl 1995 Upper Continental Crust 39 Y 21           µg/g Rudnick & Gao 2004 Shaw et al. 1967 Shaw et al. 1976 Upper Continental Crust 39 Y 24           µg/g Rudnick & Gao 2004 Condie 1993 Upper Continental Crust 39 Y 21           µg/g Rudnick & Gao 2004 Eade and Fahrig 1973 Upper Continental Crust 39 Y 25           ppm Condie 1993 Upper Continental Crust 39 Y 22           ppm Taylor et al. 1983 Taylor & McLennan 1981 Upper Continental Crust 39 Y 22           ppm Weaver & Tarney 1984 Taylor & McLennan 1981 Upper Continental Crust 39 Y 32           ppm Hart et al. 1999 Staudigel et al. 1995 Smith et al. 1995 Hart & Staudigel 1989 Staudigel et al. 1989 Upper Continental Crust 39 Y 21           ppm Kemp & Hawkesworth 2004 Rudnick & Gao 2004 Upper Continental Crust 39 Y 17.4           µg/g Rudnick & Gao 2004 Gao et al. 1998 Upper Continental Crust 39 Y 22           µg/g Rudnick & Gao 2004 Taylor & McLennan 1985 Taylor & McLennan 1995 Upper Continental Crust 39 Y 21           µg/g Rudnick & Gao 2004 Wedepohl 1995 Upper Continental Crust 39 Y 21   2       µg/g Rudnick & Gao 2004 see text Upper Continental Crust   Zr/Y 6.4             Condie 1993 Upper Continental Crust   Zr/Y 6.7             Condie 1993 Ureilite Rock Metal   Y/RE 2.4         5   Janssens et al. 1987 Ureilite Vein Metal   Y/RE 5.4         5   Janssens et al. 1987 Vanuatu Trench 39 Y 25.6           ppm Plank & Langmuir 1998 Volcanoclastic Sediment 39 Y 24.9         15 ppm Plank & Langmuir 1998 Volcanoclastic Turbidites 39 Y 14.3           ppm Elliot et al. 1997 Volcanoclastic Turbidites 39 Y 20.2         43 ppm Plank & Langmuir 1998 Volcanoclastic Turbidites 39 Y 14.3         13 ppm Plank & Langmuir 1998 Yangtze Craton 39 Y 15.5           ppm Gao et al. 1998 Yangtze Craton 39 Y 17.8           ppm Gao et al. 1998 Yangtze Craton 39 Y 18.1           ppm Gao et al. 1998 Yangtze Craton 39 Y 17.2           ppm Gao et al. 1998 Yangtze Craton 39 Y 17.8           ppm Gao et al. 1998