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

GERM Database Search Results        
Reservoir Z Element Value Median SD Low High N Unit Info Reference Source(s)
Continental Crust   Be/Ta 2.7             Elemental ratios as found in the Continental Crust according to Rudnick and Gao 2003. As in the text these values are used as comparisons to the Elemental ratios found in Primitive Upper Mantle from McDonough and Sun 1995. Salters & Stracke 2004
Continental Crust   Bi/Pb 0.0164             Elemental ratios as found in the Continental Crust according to Rudnick and Gao 2003. As in the text these values are used as comparisons to the Elemental ratios found in Primitive Upper Mantle from McDonough and Sun 1995. Salters & Stracke 2004
Continental Crust   Cu/Sc 1.23             Elemental ratios as found in the Continental Crust according to Rudnick and Gao 2003. As in the text these values are used as comparisons to the Elemental ratios found in Primitive Upper Mantle from McDonough and Sun 1995. Salters & Stracke 2004
Continental Crust   Ge/Si 4.65e-06             Elemental ratios as found in the Continental Crust according to Rudnick and Gao 2003. As in the text these values are used as comparisons to the Elemental ratios found in Primitive Upper Mantle from McDonough and Sun 1995. Salters & Stracke 2004
Continental Crust   Hg/Mn 9.2e-06             Elemental ratios as found in the Continental Crust according to Rudnick and Gao 2003. As in the text these values are used as comparisons to the Elemental ratios found in Primitive Upper Mantle from McDonough and Sun 1995. Salters & Stracke 2004
Continental Crust   Se/V 0.00094             Elemental ratios as found in the Continental Crust according to Rudnick and Gao 2003. As in the text these values are used as comparisons to the Elemental ratios found in Primitive Upper Mantle from McDonough and Sun 1995. Salters & Stracke 2004
Continental Crust   Zn/Sc 3.29             Elemental ratios as found in the Continental Crust according to Rudnick and Gao 2003. As in the text these values are used as comparisons to the Elemental ratios found in Primitive Upper Mantle from McDonough and Sun 1995. Salters & Stracke 2004
Depleted D-MORB basalts   143Nd/144Nd 0.51311             Isotopic compositions of Depleted Mantle (DM) according to Neodymium isotopes in the 'Average' present day MORB. These average MORB compositions are calculated using a more restrictive set of filters in order to assure that MORB representing low degree melts or melts which have experienced large amounts of fractional crystallization do not affect the average. Though degree of melting or fractional crystallization do not effect the average isotopic composition, for incompatible trace element ratios to reflect source compositions only high degree melts should be used. These will be known as 'D-MORB' for Depleted Mid-Ocean Ridge Basalts. It is also noted that the values of the 'Average' and 'Extreme' D-MORB are very similar. Salters & Stracke 2004
Depleted D-MORB basalts   176Hf/177Hf 0.2833             Isotopic compositions of Depleted Mantle (DM) according to Hafnium isotopes in the 'Average' present day MORB. These average MORB compositions are calculated using a more restrictive set of filters in order to assure that MORB representing low degree melts or melts which have experienced large amounts of fractional crystallization do not affect the average. Though degree of melting or fractional crystallization do not effect the average isotopic composition, for incompatible trace element ratios to reflect source compositions only high degree melts should be used. These will be known as 'D-MORB' for Depleted Mid-Ocean Ridge Basalts. It is also noted that the values of the 'Average' and 'Extreme' D-MORB are very similar. Salters & Stracke 2004
Depleted D-MORB basalts   208Pb/204Pb 37.92             Isotopic compositions of Depleted Mantle (DM) according to Lead isotopes in the 'Average' present day MORB. These average MORB compositions are calculated using a more restrictive set of filters in order to assure that MORB representing low degree melts or melts which have experienced large amounts of fractional crystallization do not affect the average. Though degree of melting or fractional crystallization do not effect the average isotopic composition, for incompatible trace element ratios to reflect source compositions only high degree melts should be used. These will be known as 'D-MORB' for Depleted Mid-Ocean Ridge Basalts. It is also noted that the values of the 'Average' and 'Extreme' D-MORB are very similar. Salters & Stracke 2004
Depleted D-MORB basalts   87Sr/86Sr 0.7026             Isotopic compositions of Depleted Mantle (DM) according to Strontium isotopes in the 'Average' present day MORB. These average MORB compositions are calculated using a more restrictive set of filters in order to assure that MORB representing low degree melts or melts which have experienced large amounts of fractional crystallization do not affect the average. Though degree of melting or fractional crystallization do not effect the average isotopic composition, for incompatible trace element ratios to reflect source compositions only high degree melts should be used. These will be known as 'D-MORB' for Depleted Mid-Ocean Ridge Basalts. It is also noted that the values of the 'Average' and 'Extreme' D-MORB are very similar. Salters & Stracke 2004
Depleted D-MORB basalts   Ba/Th 87.3             Constant' ratios in MORB as taken from the D-MORB (Depleted MORB) compilation as explained in Salters and Stracke 2003. This compliation of 232 ratio values represent one method of removing low degree melts from MORB data. All values have gone thru a series of tests and must meet certain criteria to be added to the D-MORB compilation. This in turn leads to better estimates of values for the Depleted Mantle. Salters & Stracke 2004
Depleted D-MORB basalts   Ce/Nd 1.083             Constant' ratios in MORB as taken from the D-MORB (Depleted MORB) compilation as explained in Salters and Stracke 2003. This compliation of 232 ratio values represent one method of removing low degree melts from MORB data. All values have gone thru a series of tests and must meet certain criteria to be added to the D-MORB compilation. This in turn leads to better estimates of values for the Depleted Mantle. Salters & Stracke 2004
Depleted D-MORB basalts   Ce/P 0.19             Constant' ratios in MORB as taken from the D-MORB (Depleted MORB) compilation as explained in Salters and Stracke 2003. This compliation of 232 ratio values represent one method of removing low degree melts from MORB data. All values have gone thru a series of tests and must meet certain criteria to be added to the D-MORB compilation. This in turn leads to better estimates of values for the Depleted Mantle. Salters & Stracke 2004
Depleted D-MORB basalts   Ce/Pb 25             Constant' ratios in MORB as taken from the D-MORB (Depleted MORB) compilation as explained in Salters and Stracke 2003. This compliation of 232 ratio values represent one method of removing low degree melts from MORB data. All values have gone thru a series of tests and must meet certain criteria to be added to the D-MORB compilation. This in turn leads to better estimates of values for the Depleted Mantle. Salters & Stracke 2004
Depleted D-MORB basalts   Cs/Rb 0.015             Constant' ratios in MORB as taken from the D-MORB (Depleted MORB) compilation as explained in Salters and Stracke 2003. This compliation of 232 ratio values represent one method of removing low degree melts from MORB data. All values have gone thru a series of tests and must meet certain criteria to be added to the D-MORB compilation. This in turn leads to better estimates of values for the Depleted Mantle. Salters & Stracke 2004
Depleted D-MORB basalts   K/U 12654             Constant' ratios in MORB as taken from the D-MORB (Depleted MORB) compilation as explained in Salters and Stracke 2003. This compliation of 232 ratio values represent one method of removing low degree melts from MORB data. All values have gone thru a series of tests and must meet certain criteria to be added to the D-MORB compilation. This in turn leads to better estimates of values for the Depleted Mantle. Salters & Stracke 2004
Depleted D-MORB basalts   La/Ce 0.3026             Constant' ratios in MORB as taken from the D-MORB (Depleted MORB) compilation as explained in Salters and Stracke 2003. This compliation of 232 ratio values represent one method of removing low degree melts from MORB data. All values have gone thru a series of tests and must meet certain criteria to be added to the D-MORB compilation. This in turn leads to better estimates of values for the Depleted Mantle. Salters & Stracke 2004
Depleted D-MORB basalts   La/Nb 1.1             Constant' ratios in MORB as taken from the D-MORB (Depleted MORB) compilation as explained in Salters and Stracke 2003. This compliation of 232 ratio values represent one method of removing low degree melts from MORB data. All values have gone thru a series of tests and must meet certain criteria to be added to the D-MORB compilation. This in turn leads to better estimates of values for the Depleted Mantle. Salters & Stracke 2004
Depleted D-MORB basalts   Nb/Ta 15.19             Constant' ratios in MORB as taken from the D-MORB (Depleted MORB) compilation as explained in Salters and Stracke 2003. This compliation of 232 ratio values represent one method of removing low degree melts from MORB data. All values have gone thru a series of tests and must meet certain criteria to be added to the D-MORB compilation. This in turn leads to better estimates of values for the Depleted Mantle. Salters & Stracke 2004
Depleted D-MORB basalts   Nb/U 44.4             Constant' ratios in MORB as taken from the D-MORB (Depleted MORB) compilation as explained in Salters and Stracke 2003. This compliation of 232 ratio values represent one method of removing low degree melts from MORB data. All values have gone thru a series of tests and must meet certain criteria to be added to the D-MORB compilation. This in turn leads to better estimates of values for the Depleted Mantle. Salters & Stracke 2004
Depleted D-MORB basalts   Nd/Pr 5.443             Constant' ratios in MORB as taken from the D-MORB (Depleted MORB) compilation as explained in Salters and Stracke 2003. This compliation of 232 ratio values represent one method of removing low degree melts from MORB data. All values have gone thru a series of tests and must meet certain criteria to be added to the D-MORB compilation. This in turn leads to better estimates of values for the Depleted Mantle. Salters & Stracke 2004
Depleted D-MORB basalts   Rb/Ba 0.0731             Constant' ratios in MORB as taken from the D-MORB (Depleted MORB) compilation as explained in Salters and Stracke 2003. This compliation of 232 ratio values represent one method of removing low degree melts from MORB data. All values have gone thru a series of tests and must meet certain criteria to be added to the D-MORB compilation. This in turn leads to better estimates of values for the Depleted Mantle. Salters & Stracke 2004
Depleted D-MORB basalts   Sm/Hf 1.355             Constant' ratios in MORB as taken from the D-MORB (Depleted MORB) compilation as explained in Salters and Stracke 2003. This compliation of 232 ratio values represent one method of removing low degree melts from MORB data. All values have gone thru a series of tests and must meet certain criteria to be added to the D-MORB compilation. This in turn leads to better estimates of values for the Depleted Mantle. Salters & Stracke 2004
Depleted D-MORB basalts   Sr/Nd 13.74             Constant' ratios in MORB as taken from the D-MORB (Depleted MORB) compilation as explained in Salters and Stracke 2003. This compliation of 232 ratio values represent one method of removing low degree melts from MORB data. All values have gone thru a series of tests and must meet certain criteria to be added to the D-MORB compilation. This in turn leads to better estimates of values for the Depleted Mantle. Salters & Stracke 2004
Depleted D-MORB basalts   Sr/Nd 13.74             Constant' ratios in MORB as taken from the D-MORB (Depleted MORB) compilation as explained in Salters and Stracke 2003. This compliation of 232 ratio values represent one method of removing low degree melts from MORB data. All values have gone thru a series of tests and must meet certain criteria to be added to the D-MORB compilation. This in turn leads to better estimates of values for the Depleted Mantle. Salters & Stracke 2004
Depleted D-MORB basalts   Th/U 2.9             Constant' ratios in MORB as taken from the D-MORB (Depleted MORB) compilation as explained in Salters and Stracke 2003. This compliation of 232 ratio values represent one method of removing low degree melts from MORB data. All values have gone thru a series of tests and must meet certain criteria to be added to the D-MORB compilation. This in turn leads to better estimates of values for the Depleted Mantle. Salters & Stracke 2004
Depleted D-MORB basalts   Ti/Gd 2020             Constant' ratios in MORB as taken from the D-MORB (Depleted MORB) compilation as explained in Salters and Stracke 2003. This compliation of 232 ratio values represent one method of removing low degree melts from MORB data. All values have gone thru a series of tests and must meet certain criteria to be added to the D-MORB compilation. This in turn leads to better estimates of values for the Depleted Mantle. Salters & Stracke 2004
Depleted D-MORB basalts   Y/Yb 10.144             Constant' ratios in MORB as taken from the D-MORB (Depleted MORB) compilation as explained in Salters and Stracke 2003. This compliation of 232 ratio values represent one method of removing low degree melts from MORB data. All values have gone thru a series of tests and must meet certain criteria to be added to the D-MORB compilation. This in turn leads to better estimates of values for the Depleted Mantle. Salters & Stracke 2004
Depleted D-MORB basalts   Zr/Hf 39.83             Constant' ratios in MORB as taken from the D-MORB (Depleted MORB) compilation as explained in Salters and Stracke 2003. This compliation of 232 ratio values represent one method of removing low degree melts from MORB data. All values have gone thru a series of tests and must meet certain criteria to be added to the D-MORB compilation. This in turn leads to better estimates of values for the Depleted Mantle. Salters & Stracke 2004
Depleted Mantle 47 Ag 6   3       ppb Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. Ag-CaO is the element ratio/constraint used to make this estimate. Salters & Stracke 2004
Depleted Mantle 13 Al 4.28   0.0856       wt%ox Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. MMM is the element ratio used to make this estimate. Salters & Stracke 2004
Depleted Mantle 18 Ar 1.21   0.4598       ppb Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. He/Ar is the element ratio used to make this estimate. Salters & Stracke 2004
Depleted Mantle 33 As 7.4   2.072       ppb Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. As/Ce is the element ratio/constraint used to make this estimate. Salters & Stracke 2004
Depleted Mantle 79 Au 1   0.48       ppb Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. Ir/Au is the element ratio/constraint used to make this estimate. Salters & Stracke 2004
Depleted Mantle 5 B 0.06   0.0546       ppm Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. B/K is the element ratio used to make this estimate. Salters & Stracke 2004
Depleted Mantle 56 Ba 1.2   0.588       ppm Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. Rb/Ba is the element ratio/constraint used to make this estimate. Salters & Stracke 2004
Depleted Mantle 4 Be 25   25       ppb Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. Be/Ta is the element ratio used to make this estimate. Salters & Stracke 2004
Depleted Mantle 83 Bi 0.39           ppb Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. Bi/Pb is the element ratio/constraint used to make this estimate. Salters & Stracke 2004
Depleted Mantle 6 C 50.3   12.072       ppm Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. CO2/Nb is the element ratio used to make this estimate. Salters & Stracke 2004
Depleted Mantle 20 Ca 3.5   0.035       wt%ox Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. MMM is the element ratio used to make this estimate. Salters & Stracke 2004
Depleted Mantle 48 Cd 0.014   0.0042       ppm Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. Cd/Dy is the element ratio/constraint used to make this estimate. Salters & Stracke 2004
Depleted Mantle 58 Ce 0.772   0.1158       ppm Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. Ce/Nd is the element ratio/constraint used to make this estimate. Salters & Stracke 2004
Depleted Mantle 17 Cl 0.51   0.0918       ppm Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. Cl/K is the element ratio used to make this estimate. Salters & Stracke 2004
Depleted Mantle 27 Co 106   14.84       ppm Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. Co-CaO is the element ratio used to make this estimate. Salters & Stracke 2004
Depleted Mantle 24 Cr 2500   1000       ppm Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. CaO-Cr is the element ratio used to make this estimate. Salters & Stracke 2004
Depleted Mantle 55 Cs 1.32   0.5544       ppb Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. Cs/Rb is the element ratio/constraint used to make this estimate. Salters & Stracke 2004
Depleted Mantle 29 Cu 30           ppm Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. Cu/Sc is the element ratio used to make this estimate. Salters & Stracke 2004
Depleted Mantle 66 Dy 0.531   0.0531       ppm Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. Dy/Lu-Sm is the element ratio/constraint used to make this estimate. Salters & Stracke 2004
Depleted Mantle 68 Er 0.371   0.0371       ppm Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. Er/Lu-Sm is the element ratio/constraint used to make this estimate. Salters & Stracke 2004
Depleted Mantle 63 Eu 0.107   0.0107       ppm Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. Eu/Lu-Sm is the element ratio/constraint used to make this estimate. Salters & Stracke 2004
Depleted Mantle 9 F 11   4.51       ppm Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. F/P is the element ratio used to make this estimate. Salters & Stracke 2004
Depleted Mantle 26 Fe 8.07   0.1614       wt%ox Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. MMM is the element ratio used to make this estimate. Salters & Stracke 2004
Depleted Mantle 31 Ga 3.2   0.512       ppm Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. CaO is the element ratio/constraint used to make this estimate. Salters & Stracke 2004
Depleted Mantle 64 Gd 0.395   0.0395       ppm Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. Gd/Lu-Sm is the element ratio/constraint used to make this estimate. Salters & Stracke 2004
Depleted Mantle 32 Ge 1   2       ppm Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. Ge/Si is the element ratio/constraint used to make this estimate. Salters & Stracke 2004
Depleted Mantle 1 H 116   58       ppm Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. H2O/Ce is the element ratio used to make this estimate. Salters & Stracke 2004
Depleted Mantle 2 He 157   72.22       ppt Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. C/He is the element ratio used to make this estimate. Salters & Stracke 2004
Depleted Mantle 72 Hf 0.199   0.01592       ppm Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. Lu/Hf is the element ratio/constraint used to make this estimate. Salters & Stracke 2004
Depleted Mantle 80 Hg 10           ppb Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. Hg/Mn is the element ratio/constraint used to make this estimate. Salters & Stracke 2004
Depleted Mantle 67 Ho 0.122   0.0122       ppm Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. Ho/Lu-Sm is the element ratio/constraint used to make this estimate. Salters & Stracke 2004
Depleted Mantle 49 In 12.2   3.05       ppb Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. In/Y is the element ratio/constraint used to make this estimate. Salters & Stracke 2004
Depleted Mantle 77 Ir 2.9   0.58       ppb Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. Per is the element ratio/constraint used to make this estimate. Salters & Stracke 2004
Depleted Mantle 19 K 60   16.8       ppm Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. K/U is the element ratio used to make this estimate. Salters & Stracke 2004
Depleted Mantle 36 Kr 2   0.8         Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. He/Kr is the element ratio/constraint used to make this estimate. Salters & Stracke 2004
Depleted Mantle 57 La 0.234   0.03276       ppm Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. La/Ce is the element ratio/constraint used to make this estimate. Salters & Stracke 2004
Depleted Mantle 3 Li 0.7   0.056       ppm Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. Yb/Li is the element ratio used to make this estimate. Salters & Stracke 2004
Depleted Mantle 71 Lu 0.063   0.00567       ppm Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. Lu-CaO is the element ratio/constraint used to make this estimate. Salters & Stracke 2004
Depleted Mantle 12 Mg 38.22   0.3822       wt%ox Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. MMM is the element ratio used to make this estimate. Salters & Stracke 2004
Depleted Mantle 25 Mn 1045   177.65       ppm Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. Fe/Mn is the element ratio used to make this estimate. Salters & Stracke 2004
Depleted Mantle 42 Mo 25   7       ppb Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. Mo/Ce is the element ratio/constraint used to make this estimate. Salters & Stracke 2004
Depleted Mantle 7 N 40   12       ppb Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. C/N is the element ratio used to make this estimate. Salters & Stracke 2004
Depleted Mantle 11 Na 0.29   0.029       wt%ox Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. MMM is the element ratio used to make this estimate. Salters & Stracke 2004
Depleted Mantle 41 Nb 210   73.5       ppb Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. U/Nb is the element ratio/constraint used to make this estimate. Salters & Stracke 2004
Depleted Mantle 60 Nd 0.713   0.04991       ppm Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. Sm/Nd is the element ratio/constraint used to make this estimate. Salters & Stracke 2004
Depleted Mantle 28 Ni 1960   196       ppm Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. MgO/Ni is the element ratio used to make this estimate. Salters & Stracke 2004
Depleted Mantle 76 Os 2.99   0.4485       ppb Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. Os/Is is the element ratio/constraint used to make this estimate. Salters & Stracke 2004
Depleted Mantle 15 P 40.7   10.175       ppm Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. Ce/P is the element ratio used to make this estimate. Salters & Stracke 2004
Depleted Mantle 82 Pb 23.2   6.96       ppb Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. Th/Pb is the element ratio/constraint used to make this estimate. Salters & Stracke 2004
Depleted Mantle 46 Pd 5.2   1.248       ppb Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. Ir/Pd is the element ratio/constraint used to make this estimate. Salters & Stracke 2004
Depleted Mantle 59 Pr 0.131   0.0131       ppm Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. Nd/Pr is the element ratio/constraint used to make this estimate. Salters & Stracke 2004
Depleted Mantle 78 Pt 6.2   1.674       ppb Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. Ir/Pt is the element ratio/constraint used to make this estimate. Salters & Stracke 2004
Depleted Mantle 37 Rb 0.088   0.022       ppm Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. Rb/Sr is the element ratio/constraint used to make this estimate. Salters & Stracke 2004
Depleted Mantle 75 Re 0.157   0.03925       ppb Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. Re/Os is the element ratio/constraint used to make this estimate. Salters & Stracke 2004
Depleted Mantle 45 Rh 1   0.15       ppb Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. Ir/Rh is the element ratio/constraint used to make this estimate. Salters & Stracke 2004
Depleted Mantle 44 Ru 5.7   0.912       ppb Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. Ir/Ru is the element ratio/constraint used to make this estimate. Salters & Stracke 2004
Depleted Mantle 16 S 119   29.75       ppm Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. S/Dy is the element ratio used to make this estimate. Salters & Stracke 2004
Depleted Mantle 51 Sb 2.6   1.092       ppb Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. Sb/Pr is the element ratio/constraint used to make this estimate. Salters & Stracke 2004
Depleted Mantle 21 Sc 16.3   2.119       ppm Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. Sc-CaO is the element ratio used to make this estimate. Salters & Stracke 2004
Depleted Mantle 34 Se 72           ppb Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. Se/V is the element ratio/constraint used to make this estimate. Salters & Stracke 2004
Depleted Mantle 14 Si 44.9   0.449       wt%ox Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. MMM is the element ratio used to make this estimate. Salters & Stracke 2004
Depleted Mantle 62 Sm 0.27   0.027       ppm Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. Sm/Hf is the element ratio/constraint used to make this estimate. Salters & Stracke 2004
Depleted Mantle 50 Sn 0.1   0.022       ppm Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. Sn/Sm is the element ratio/constraint used to make this estimate. Salters & Stracke 2004
Depleted Mantle 38 Sr 9.8   1.862       ppm Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. Sr/Nd is the element ratio/constraint used to make this estimate. Salters & Stracke 2004
Depleted Mantle 73 Ta 13.8   4.554       ppb Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. Nb/Ta is the element ratio/constraint used to make this estimate. Salters & Stracke 2004
Depleted Mantle 65 Tb 0.075   0.0075       ppm Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. Tb/Lu-Sm is the element ratio/constraint used to make this estimate. Salters & Stracke 2004
Depleted Mantle 52 Te 15.1   12.08       ppb Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. Te/Ni is the element ratio/constraint used to make this estimate. Salters & Stracke 2004
Depleted Mantle 90 Th 13.7   4.11       ppb Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. Ba/Th is the element ratio/constraint used to make this estimate. Salters & Stracke 2004
Depleted Mantle 22 Ti 798   95.76       ppm Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. Ti/Gd is the element ratio used to make this estimate. Salters & Stracke 2004
Depleted Mantle 81 Tl 0.38           ppb Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. Rb/Tl is the element ratio/constraint used to make this estimate. Salters & Stracke 2004
Depleted Mantle 69 Tm 0.06   0.006       ppm Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. Tm/Lu-Sm is the element ratio/constraint used to make this estimate. Salters & Stracke 2004
Depleted Mantle 92 U 4.7   1.41       ppb Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. Th/U is the element ratio/constraint used to make this estimate. Salters & Stracke 2004
Depleted Mantle 23 V 79   5.53       ppm Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. CaO-V is the element ratio used to make this estimate. Salters & Stracke 2004
Depleted Mantle 74 W 3.5   1.82       ppb Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. W/Ba is the element ratio/constraint used to make this estimate. Salters & Stracke 2004
Depleted Mantle 54 Xe 0.79   0.316         Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. He/Xe is the element ratio/constraint used to make this estimate. Salters & Stracke 2004
Depleted Mantle 39 Y 4.07   0.4884       ppm Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. Y/Yb is the element ratio/constraint used to make this estimate. Salters & Stracke 2004
Depleted Mantle 70 Yb 0.401   0.02807       ppm Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. Yb/Lu-Sm is the element ratio/constraint used to make this estimate. Salters & Stracke 2004
Depleted Mantle 30 Zn 56           ppm Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. Zn/Sc is the element ratio used to make this estimate. Salters & Stracke 2004
Depleted Mantle 40 Zr 7.94   1.7468       ppm Estimate for the concentrations in the Depleted Mantle of most of the elements of the Periodic Table. Zr/Hf is the element ratio/constraint used to make this estimate. Salters & Stracke 2004
Extreme Depleted D-MORB basalts   143Nd/144Nd 0.5134             Isotopic compositions of Depleted Mantle (DM) according to Neodymium isotopes in the 'Extreme' present day MORB. 'Extreme' merely refers to the fact that these isotopic compositions are from the most depleted end of the MORB field. These average MORB compositions are calculated using a more restrictive set of filters in order to assure that MORB representing low degree melts or melts which have experienced large amounts of fractional crystallization do not affect the average. Though degree of melting or fractional crystallization do not effect the average isotopic composition, for incompatible trace element ratios to reflect source compositions only high degree melts should be used. These will be known as 'D-MORB' for Depleted Mid-Ocean Ridge Basalts. It is also noted that the values of the 'Average' and 'Extreme' D-MORB are very similar. Salters & Stracke 2004
Extreme Depleted D-MORB basalts   176Hf/177Hf 0.2836             Isotopic compositions of Depleted Mantle (DM) according to Hafnium isotopes in the 'Extreme' present day MORB. 'Extreme' merely refers to the fact that these isotopic compositions are from the most depleted end of the MORB field. These average MORB compositions are calculated using a more restrictive set of filters in order to assure that MORB representing low degree melts or melts which have experienced large amounts of fractional crystallization do not affect the average. Though degree of melting or fractional crystallization do not effect the average isotopic composition, for incompatible trace element ratios to reflect source compositions only high degree melts should be used. These will be known as 'D-MORB' for Depleted Mid-Ocean Ridge Basalts. It is also noted that the values of the 'Average' and 'Extreme' D-MORB are very similar. Salters & Stracke 2004
Extreme Depleted D-MORB basalts   208Pb/204Pb 37.2             Isotopic compositions of Depleted Mantle (DM) according to Lead isotopes in the 'Extreme' present day MORB. 'Extreme' merely refers to the fact that these isotopic compositions are from the most depleted end of the MORB field. These average MORB compositions are calculated using a more restrictive set of filters in order to assure that MORB representing low degree melts or melts which have experienced large amounts of fractional crystallization do not affect the average. Though degree of melting or fractional crystallization do not effect the average isotopic composition, for incompatible trace element ratios to reflect source compositions only high degree melts should be used. These will be known as 'D-MORB' for Depleted Mid-Ocean Ridge Basalts. It is also noted that the values of the 'Average' and 'Extreme' D-MORB are very similar. Salters & Stracke 2004
Extreme Depleted D-MORB basalts   87Sr/86Sr 0.702             Isotopic compositions of Depleted Mantle (DM) according to Strontium isotopes in the 'Extreme' present day MORB. 'Extreme' merely refers to the fact that these isotopic compositions are from the most depleted end of the MORB field. These average MORB compositions are calculated using a more restrictive set of filters in order to assure that MORB representing low degree melts or melts which have experienced large amounts of fractional crystallization do not affect the average. Though degree of melting or fractional crystallization do not effect the average isotopic composition, for incompatible trace element ratios to reflect source compositions only high degree melts should be used. These will be known as 'D-MORB' for Depleted Mid-Ocean Ridge Basalts. It is also noted that the values of the 'Average' and 'Extreme' D-MORB are very similar. Salters & Stracke 2004
Fresh Mid-Ocean Ridge Basalts   143Nd/144Nd 0.5134             Isotopic compositions of Depleted Mantle (DM) according to Neodymium isotopic values from the 'All MORB' data compilation. To achieve an average isotopic composition of the Depleted Mantle the PetDB database was utilized. All eruptive products from mid-ocean spreading centers were compiled and filtered to include only samples that were erupted in water depths in excess of 2000 m. All samples that contained more than 55 wt.% SiO2 were excluded as well. Samples with non-smooth REE patterns were excluded wherever applicable. With these minimal steps of filtering, this ensures that at least part of the plume influenced basalts are excluded. Salters & Stracke 2004
Fresh Mid-Ocean Ridge Basalts   176Hf/177Hf 0.28328             Isotopic compositions of Depleted Mantle (DM) according to Hafnium isotopic values from the 'All MORB' data compilation. To achieve an average isotopic composition of the Depleted Mantle the PetDB database was utilized. All eruptive products from mid-ocean spreading centers were compiled and filtered to include only samples that were erupted in water depths in excess of 2000 m. All samples that contained more than 55 wt.% SiO2 were excluded as well. Samples with non-smooth REE patterns were excluded wherever applicable. With these minimal steps of filtering, this ensures that at least part of the plume influenced basalts are excluded. Salters & Stracke 2004
Fresh Mid-Ocean Ridge Basalts   208Pb/204Pb 37.9             Isotopic compositions of Depleted Mantle (DM) according to Lead isotopic values from the 'All MORB' data compilation. To achieve an average isotopic composition of the Depleted Mantle the PetDB database was utilized. All eruptive products from mid-ocean spreading centers were compiled and filtered to include only samples that were erupted in water depths in excess of 2000 m. All samples that contained more than 55 wt.% SiO2 were excluded as well. Samples with non-smooth REE patterns were excluded wherever applicable. With these minimal steps of filtering, this ensures that at least part of the plume influenced basalts are excluded. Salters & Stracke 2004
Fresh Mid-Ocean Ridge Basalts   87Sr/86Sr 0.7027             Isotopic compositions of Depleted Mantle (DM) according to Strontium isotopic values from the 'All MORB' data compilation. To achieve an average isotopic composition of the Depleted Mantle the PetDB database was utilized. All eruptive products from mid-ocean spreading centers were compiled and filtered to include only samples that were erupted in water depths in excess of 2000 m. All samples that contained more than 55 wt.% SiO2 were excluded as well. Samples with non-smooth REE patterns were excluded wherever applicable. With these minimal steps of filtering, this ensures that at least part of the plume influenced basalts are excluded. Salters & Stracke 2004
Fresh Mid-Ocean Ridge Basalts   Ba/Th 86.04             Constant' ratios in MORB as taken from the 'All MORB' data set according to Salters and Stracke 2003. The 'All MORB' data set is a compilation of 639 sample ratios to represent the MORB composition. In using these values and applying a simple mathematical process order to remove the outliers, which are found by calculating the upper and lower quartile range, then applying the outlier criterion (explained in Salters and Stracke 2003 pg.7). In addition to this method all the samples with La > 5 ppm were rejected. This, much like with the tests and criteria of the D-MORB values, is a method of removing low degree melts from the MORB data in order to come closer to a value for Depleted Mantle. Salters & Stracke 2004
Fresh Mid-Ocean Ridge Basalts   Ce/Nd 1.21             Constant' ratios in MORB as taken from the 'All MORB' data set according to Salters and Stracke 2003. The 'All MORB' data set is a compilation of 639 sample ratios to represent the MORB composition. In using these values and applying a simple mathematical process order to remove the outliers, which are found by calculating the upper and lower quartile range, then applying the outlier criterion (explained in Salters and Stracke 2003 pg.7). In addition to this method all the samples with La > 5 ppm were rejected. This, much like with the tests and criteria of the D-MORB values, is a method of removing low degree melts from the MORB data in order to come closer to a value for Depleted Mantle. Salters & Stracke 2004
Fresh Mid-Ocean Ridge Basalts   Ce/P 0.19             Constant' ratios in MORB as taken from the 'All MORB' data set according to Salters and Stracke 2003. The 'All MORB' data set is a compilation of 639 sample ratios to represent the MORB composition. In using these values and applying a simple mathematical process order to remove the outliers, which are found by calculating the upper and lower quartile range, then applying the outlier criterion (explained in Salters and Stracke 2003 pg.7). In addition to this method all the samples with La > 5 ppm were rejected. This, much like with the tests and criteria of the D-MORB values, is a method of removing low degree melts from the MORB data in order to come closer to a value for Depleted Mantle. Salters & Stracke 2004
Fresh Mid-Ocean Ridge Basalts   Ce/Pb 22.36             Constant' ratios in MORB as taken from the 'All MORB' data set according to Salters and Stracke 2003. The 'All MORB' data set is a compilation of 639 sample ratios to represent the MORB composition. In using these values and applying a simple mathematical process order to remove the outliers, which are found by calculating the upper and lower quartile range, then applying the outlier criterion (explained in Salters and Stracke 2003 pg.7). In addition to this method all the samples with La > 5 ppm were rejected. This, much like with the tests and criteria of the D-MORB values, is a method of removing low degree melts from the MORB data in order to come closer to a value for Depleted Mantle. Salters & Stracke 2004
Fresh Mid-Ocean Ridge Basalts   Cs/Rb 0.015             Constant' ratios in MORB as taken from the 'All MORB' data set according to Salters and Stracke 2003. The 'All MORB' data set is a compilation of 639 sample ratios to represent the MORB composition. In using these values and applying a simple mathematical process order to remove the outliers, which are found by calculating the upper and lower quartile range, then applying the outlier criterion (explained in Salters and Stracke 2003 pg.7). In addition to this method all the samples with La > 5 ppm were rejected. This, much like with the tests and criteria of the D-MORB values, is a method of removing low degree melts from the MORB data in order to come closer to a value for Depleted Mantle. Salters & Stracke 2004
Fresh Mid-Ocean Ridge Basalts   K/U 14674             Constant' ratios in MORB as taken from the 'All MORB' data set according to Salters and Stracke 2003. The 'All MORB' data set is a compilation of 639 sample ratios to represent the MORB composition. In using these values and applying a simple mathematical process order to remove the outliers, which are found by calculating the upper and lower quartile range, then applying the outlier criterion (explained in Salters and Stracke 2003 pg.7). In addition to this method all the samples with La > 5 ppm were rejected. This, much like with the tests and criteria of the D-MORB values, is a method of removing low degree melts from the MORB data in order to come closer to a value for Depleted Mantle. Salters & Stracke 2004
Fresh Mid-Ocean Ridge Basalts   La/Ce 0.3565             Constant' ratios in MORB as taken from the 'All MORB' data set according to Salters and Stracke 2003. The 'All MORB' data set is a compilation of 639 sample ratios to represent the MORB composition. In using these values and applying a simple mathematical process order to remove the outliers, which are found by calculating the upper and lower quartile range, then applying the outlier criterion (explained in Salters and Stracke 2003 pg.7). In addition to this method all the samples with La > 5 ppm were rejected. This, much like with the tests and criteria of the D-MORB values, is a method of removing low degree melts from the MORB data in order to come closer to a value for Depleted Mantle. Salters & Stracke 2004
Fresh Mid-Ocean Ridge Basalts   La/Nb 1.2             Constant' ratios in MORB as taken from the 'All MORB' data set according to Salters and Stracke 2003. The 'All MORB' data set is a compilation of 639 sample ratios to represent the MORB composition. In using these values and applying a simple mathematical process order to remove the outliers, which are found by calculating the upper and lower quartile range, then applying the outlier criterion (explained in Salters and Stracke 2003 pg.7). In addition to this method all the samples with La > 5 ppm were rejected. This, much like with the tests and criteria of the D-MORB values, is a method of removing low degree melts from the MORB data in order to come closer to a value for Depleted Mantle. Salters & Stracke 2004
Fresh Mid-Ocean Ridge Basalts   Nb/Ta 14.73             Constant' ratios in MORB as taken from the 'All MORB' data set according to Salters and Stracke 2003. The 'All MORB' data set is a compilation of 639 sample ratios to represent the MORB composition. In using these values and applying a simple mathematical process order to remove the outliers, which are found by calculating the upper and lower quartile range, then applying the outlier criterion (explained in Salters and Stracke 2003 pg.7). In addition to this method all the samples with La > 5 ppm were rejected. This, much like with the tests and criteria of the D-MORB values, is a method of removing low degree melts from the MORB data in order to come closer to a value for Depleted Mantle. Salters & Stracke 2004
Fresh Mid-Ocean Ridge Basalts   Nb/U 45.74             Constant' ratios in MORB as taken from the 'All MORB' data set according to Salters and Stracke 2003. The 'All MORB' data set is a compilation of 639 sample ratios to represent the MORB composition. In using these values and applying a simple mathematical process order to remove the outliers, which are found by calculating the upper and lower quartile range, then applying the outlier criterion (explained in Salters and Stracke 2003 pg.7). In addition to this method all the samples with La > 5 ppm were rejected. This, much like with the tests and criteria of the D-MORB values, is a method of removing low degree melts from the MORB data in order to come closer to a value for Depleted Mantle. Salters & Stracke 2004
Fresh Mid-Ocean Ridge Basalts   Nd/Pr 5.13             Constant' ratios in MORB as taken from the 'All MORB' data set according to Salters and Stracke 2003. The 'All MORB' data set is a compilation of 639 sample ratios to represent the MORB composition. In using these values and applying a simple mathematical process order to remove the outliers, which are found by calculating the upper and lower quartile range, then applying the outlier criterion (explained in Salters and Stracke 2003 pg.7). In addition to this method all the samples with La > 5 ppm were rejected. This, much like with the tests and criteria of the D-MORB values, is a method of removing low degree melts from the MORB data in order to come closer to a value for Depleted Mantle. Salters & Stracke 2004
Fresh Mid-Ocean Ridge Basalts   Rb/Ba 0.0874             Constant' ratios in MORB as taken from the 'All MORB' data set according to Salters and Stracke 2003. The 'All MORB' data set is a compilation of 639 sample ratios to represent the MORB composition. In using these values and applying a simple mathematical process order to remove the outliers, which are found by calculating the upper and lower quartile range, then applying the outlier criterion (explained in Salters and Stracke 2003 pg.7). In addition to this method all the samples with La > 5 ppm were rejected. This, much like with the tests and criteria of the D-MORB values, is a method of removing low degree melts from the MORB data in order to come closer to a value for Depleted Mantle. Salters & Stracke 2004
Fresh Mid-Ocean Ridge Basalts   Sm/Hf 1.32             Constant' ratios in MORB as taken from the 'All MORB' data set according to Salters and Stracke 2003. The 'All MORB' data set is a compilation of 639 sample ratios to represent the MORB composition. In using these values and applying a simple mathematical process order to remove the outliers, which are found by calculating the upper and lower quartile range, then applying the outlier criterion (explained in Salters and Stracke 2003 pg.7). In addition to this method all the samples with La > 5 ppm were rejected. This, much like with the tests and criteria of the D-MORB values, is a method of removing low degree melts from the MORB data in order to come closer to a value for Depleted Mantle. Salters & Stracke 2004
Fresh Mid-Ocean Ridge Basalts   Sr/Nd 11.88             Constant' ratios in MORB as taken from the 'All MORB' data set according to Salters and Stracke 2003. The 'All MORB' data set is a compilation of 639 sample ratios to represent the MORB composition. In using these values and applying a simple mathematical process order to remove the outliers, which are found by calculating the upper and lower quartile range, then applying the outlier criterion (explained in Salters and Stracke 2003 pg.7). In addition to this method all the samples with La > 5 ppm were rejected. This, much like with the tests and criteria of the D-MORB values, is a method of removing low degree melts from the MORB data in order to come closer to a value for Depleted Mantle. Salters & Stracke 2004
Fresh Mid-Ocean Ridge Basalts   Th/U 3.26             Constant' ratios in MORB as taken from the 'All MORB' data set according to Salters and Stracke 2003. The 'All MORB' data set is a compilation of 639 sample ratios to represent the MORB composition. In using these values and applying a simple mathematical process order to remove the outliers, which are found by calculating the upper and lower quartile range, then applying the outlier criterion (explained in Salters and Stracke 2003 pg.7). In addition to this method all the samples with La > 5 ppm were rejected. This, much like with the tests and criteria of the D-MORB values, is a method of removing low degree melts from the MORB data in order to come closer to a value for Depleted Mantle. Salters & Stracke 2004
Fresh Mid-Ocean Ridge Basalts   Ti/Gd 1937             Constant' ratios in MORB as taken from the 'All MORB' data set according to Salters and Stracke 2003. The 'All MORB' data set is a compilation of 639 sample ratios to represent the MORB composition. In using these values and applying a simple mathematical process order to remove the outliers, which are found by calculating the upper and lower quartile range, then applying the outlier criterion (explained in Salters and Stracke 2003 pg.7). In addition to this method all the samples with La > 5 ppm were rejected. This, much like with the tests and criteria of the D-MORB values, is a method of removing low degree melts from the MORB data in order to come closer to a value for Depleted Mantle. Salters & Stracke 2004
Fresh Mid-Ocean Ridge Basalts   Y/Yb 10.07             Constant' ratios in MORB as taken from the 'All MORB' data set according to Salters and Stracke 2003. The 'All MORB' data set is a compilation of 639 sample ratios to represent the MORB composition. In using these values and applying a simple mathematical process order to remove the outliers, which are found by calculating the upper and lower quartile range, then applying the outlier criterion (explained in Salters and Stracke 2003 pg.7). In addition to this method all the samples with La > 5 ppm were rejected. This, much like with the tests and criteria of the D-MORB values, is a method of removing low degree melts from the MORB data in order to come closer to a value for Depleted Mantle. Salters & Stracke 2004
Fresh Mid-Ocean Ridge Basalts   Zr/Hf 39.03             Constant' ratios in MORB as taken from the 'All MORB' data set according to Salters and Stracke 2003. The 'All MORB' data set is a compilation of 639 sample ratios to represent the MORB composition. In using these values and applying a simple mathematical process order to remove the outliers, which are found by calculating the upper and lower quartile range, then applying the outlier criterion (explained in Salters and Stracke 2003 pg.7). In addition to this method all the samples with La > 5 ppm were rejected. This, much like with the tests and criteria of the D-MORB values, is a method of removing low degree melts from the MORB data in order to come closer to a value for Depleted Mantle. Salters & Stracke 2004
Silicate Earth   143Nd/144Nd 0.512634             Isotopic compositions of Depleted Mantle (DM) according to Neodymium isotopes in the Bulk Silicate Earth. The composition of the Bulk Silicate Earth (BSE) has been estimated by McDonough & Sun 1995. Salters & Stracke 2004
Silicate Earth   176Hf/177Hf 0.282843             Isotopic compositions of Depleted Mantle (DM) according to Hafnium isotopes in the Bulk Silicate Earth. The composition of the Bulk Silicate Earth (BSE) has been estimated by McDonough & Sun 1995. For these Hafnium values the average for C-Chondrites (from Patchett et al. 2004) were used. This results in a BSE composition that falls within the Hf-Nd array on an isotope correlation diagram. Salters & Stracke 2004
Silicate Earth   208Pb/204Pb 17.7             Isotopic compositions of Depleted Mantle (DM) according to Lead isotopes in the Bulk Silicate Earth. The composition of the Bulk Silicate Earth (BSE) has been estimated by McDonough & Sun 1995. Salters & Stracke 2004
Silicate Earth   87Sr/86Sr 0.7045             Isotopic compositions of Depleted Mantle (DM) according to Strontium isotopes in the Bulk Silicate Earth. The composition of the Bulk Silicate Earth (BSE) has been estimated by McDonough & Sun 1995. Salters & Stracke 2004
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