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)
Atmosphere   36Ar 1             Isotopic compositions of Earth Atmosphere as given in relative abundances of noble-gas and major volatiles. Porcelli & Turekian 2014 Ozima & Podosek 2001
Porcelli et al. 2002
Atmosphere   37Ar 1.1             Global inventory of 37Ar isotope in the Earth's atmosphere as measured in either grams, kilograms or tons. Turekian & Graustein 2004 Lal & Peters 1967
Atmosphere   38Ar 0.188   0.0004         Isotopic compositions of Earth Atmosphere as given in relative abundances of noble-gas and major volatiles. Porcelli & Turekian 2014 Ozima & Podosek 2001
Porcelli et al. 2002
Atmosphere   38Ar/36Ar 0.188             Helium, Neodymium and Argon Isotopic compositions in the Solar System as first given by McDougall and Honda 1998. Hilton & Porcelli 2004 McDougall & Honda 1998
Atmosphere   39Ar 52             Global inventory of 39Ar isotope in the Earth's atmosphere as measured in either grams, kilograms or tons.  Based on atmospheric 39Ar/Ar ratio of (0.107 ¿ 0.004) dpm/l, Ar(STP). Turekian & Graustein 2004 Lal & Peters 1967
Atmosphere   40Ar 295.5   0.5         Isotopic compositions of Earth Atmosphere as given in relative abundances of noble-gas and major volatiles. Porcelli & Turekian 2014 Ozima & Podosek 2001
Porcelli et al. 2002
Atmosphere   40Ar/36Ar 295.5             Helium, Neodymium and Argon Isotopic compositions in the Solar System as first given by McDougall and Honda 1998. Hilton & Porcelli 2004 McDougall & Honda 1998
Atmosphere 18 Ar 1650000000000000000             Global inventory for atmospheric volatiles as measured in moles. Based on dry tropospheric air. Porcelli & Turekian 2006 Ozima & Podosek 2001
Atmosphere 18 Ar 0.934             Mole fraction of Ar: Argon gas in dry air. Major sources for these gases in the atmosphere range from biological sources to antropogenic. Prinn 2004 Brasseur et al. 1999
Prinn et al. 2000
CI Chondrites   20Ne/36Ar 40             Anders & Ebihara 1982 Marti et al. 1972
CI Chondrites   20Ne/36Ar 31             Anders & Ebihara 1982 Cameron 1973
CI Chondrites   20Ne/36Ar 37             Anders & Ebihara 1982
CI Chondrites   20Ne/36Ar 26             Anders & Ebihara 1982 Cameron 1982
CI Chondrites   36Ar/84Kr 3380             Anders & Ebihara 1982
CI Chondrites   36Ar/84Kr 3800             Anders & Ebihara 1982 Cameron 1982
CI Chondrites   36Ar/84Kr 3710             Anders & Ebihara 1982 Cameron 1973
CI Chondrites   36Ar/84Kr 2500             Anders & Ebihara 1982 Marti et al. 1972
CI Chondrites 18 Ar 751   0         Abundance of elements in the solar system based off of Palme & Beer 1993 study of CI meteorites. Elements imcompletely condensed in CI meteorites. Palme & Jones 2004 Palme & Beer 1993
CI Chondrites 18 Ar 751             Abundance of elements in the solar system from Anders & Grevesse 1989 study of CI meteorites. Palme & Jones 2004 Anders & Grevesse 1989
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
Intra Stellar Medium 18 Ar 6.08   2.736         Abundance of highly volatile elements in the gas phase of Inter Stellar Medium (ISM) as viewed in the direction of Ophiucus star. ISM is viewed as cool gas. Palme & Jones 2004 Savage & Sembach 1996
Jupiter Atmosphere 18 Ar       2 3     Abundances of major element species in the atmosphere of Jupiter with the values expressed as relative to solar abundance. See Source citations for abundance values in absolute units. Lunine 2004 Atreya et al. 1999b
Gautier et al. 2001
Noll et al. 1989
Fink et al. 1978
Mars Atmosphere   36Ar/132Xe 350   98         Elemental and Isotopic composition of the Martian atmosphere as modeled by Bogard et al. 2001. Isotopic values are given as ratios where elements are given in respect to gas compounds such as CO2, N2, etc. McSween, Jr. 2004 Bogard et al. 2001
Mars Atmosphere   36Ar/38Ar 5.5   1.5         Elemental and Isotopic composition of the Martian atmosphere as modeled by Bogard et al. 2001. Isotopic values are given as ratios where elements are given in respect to gas compounds such as CO2, N2, etc. McSween, Jr. 2004 Bogard et al. 2001
Mars Atmosphere   40Ar/36Ar 3000   500         Elemental and Isotopic composition of the Martian atmosphere as modeled by Bogard et al. 2001. Isotopic values are given as ratios where elements are given in respect to gas compounds such as CO2, N2, etc. McSween, Jr. 2004 Bogard et al. 2001
Mars Atmosphere 18 Ar 1.6             Elemental and Isotopic composition of the Martian atmosphere as modeled by Bogard et al. 2001. Isotopic values are given as ratios where elements are given in respect to gas compounds such as CO2, N2, etc. McSween, Jr. 2004 Bogard et al. 2001
Oceans Deep water 18 Ar 15.6             Deep ocean water is ~1,000 m depth. Where possible data is from the Pacific ocean that shows the greates variations; otherwhise data is from the Atlantic ocean. Depth = 1086 m. Quinby-Hunt & Turekian 1983 Craig et al. 1967
Oceans Surface water 18 Ar 10             Surface or near-surface concentratio. Where possible data is from the Pacific ocean that shows the greates variations; otherwhise data is from the Atlantic ocean. Depth = 10 m. Quinby-Hunt & Turekian 1983 Craig et al. 1967
Orgueil Chondrite 18 Ar 751         7   Solar system abundances of major and minor elements as based on studies from the Orgueil Meteorite. Abundances in the Orgueil meteorite are adequately close to the C1 chondrite mean except for REE, in which case other studies will yield more preferable results Anders & Ebihara 1982
Orgueil Chondrite 18 Ar 751         7   Orgueil meteorite measurements. Abundance approximated from 36Ar not element. Anders & Grevesse 1989
Planets   36Ar 6.7e-11             Abundance of volatiles in the atmospheres of terrestrial planets. In this case, the value is for the atmosphere of Venus and is measured as a ratio of moles to the mass of the planet itself (mol/g-planet) where the planet is given in grams in the actual table. These values were originally given by Ozima and Podosek 2001. Porcelli & Pepin Ozima & Podosek 2001
Planets   36Ar 5.8e-15             Abundance of volatiles in the atmospheres of terrestrial planets. In this case, the value is for the atmosphere of Mars and is measured as a ratio of moles to the mass of the planet itself (mol/g-planet) where the planet is given in grams in the actual table. These values were originally given by Ozima and Podosek 2001. Porcelli & Pepin Ozima & Podosek 2001
Planets   36Ar 9.41e-13             Abundance of volatiles in the atmospheres of terrestrial planets. In this case, the value is for the atmosphere of Earth and is measured as a ratio of moles to the mass of the planet itself (mol/g-planet) where the planet is given in grams in the actual table. These values were originally given by Ozima and Podosek 2001. Porcelli & Pepin Ozima & Podosek 2001
Seawater 18 Ar 15             Broeker & Peng 1982
SNC Meteorites   36Ar/132Xe 900   100         Isotopic ratio of the Martian Atmosphere as studied by Bogard et al. 2001 using SNC (Shergotty Nakhla Chassigny Meteorite) glasses. Isotopic values are given as ratios with % terrestrial or % solar values depending on the isotope itself. McSween, Jr. 2004 Bogard et al. 2001
SNC Meteorites   36Ar/38Ar         3.9     Isotopic ratio of the Martian Atmosphere as studied by Bogard et al. 2001 using SNC (Shergotty Nakhla Chassigny Meteorite) glasses. Isotopic values are given as ratios with % terrestrial or % solar values depending on the isotope itself. McSween, Jr. 2004 Bogard et al. 2001
SNC Meteorites   40Ar/36Ar 1800             Isotopic ratio of the Martian Atmosphere as studied by Bogard et al. 2001 using SNC (Shergotty Nakhla Chassigny Meteorite) glasses. Isotopic values are given as ratios with % terrestrial or % solar values depending on the isotope itself. McSween, Jr. 2004 Bogard et al. 2001
Solar Corona   20Ne/36Ar 17   10         Neon/Argon noble gas ratio as measured in the solar corona from Meyer 1985b. Anders & Grevesse 1989 Meyer 1985
Solar Corona 18 Ar 5.89   0.1         Based on the measurement of solar energetic particles and the solar wind. Adopted solar corona values corrected for residual charge/mass fractionation. Normalized to Log A(Si) = 7.55 based on the photospheric scale. Anders & Grevesse 1989
Solar Corona 18 Ar 5.93   0.06         SEP values corrected for the Q/M-depenent fractionation which depend on the assumed Fe/Si ratio. For the most part these values are quite accurate they generally agree with Solar Wind values and lie within the errors of the specroscopic data. Anders & Grevesse 1989 Breneman & Stone 1985
Solar Corona 18 Ar 6.28   0.26         Coronal spectroscopic results apply variously to the ordinary quiet coronas, active regions, coronal holes or prominences. Found that coronal abundances do not differ from photospheric abundances by more than their uncertainties. Anders & Grevesse 1989 Meyer 1985
Solar Photosphere 18 Ar 6.4   0.06         Elemental solar photospheric abundances as given by various references. Abundances are not derived from the photosphere. Palme & Jones 2004 Grevesse & Sauval 1998
Solar Photosphere 18 Ar 6.56   0.1         Abundances in Solar Photosphere; in original table: log N(H) = 12.00. Based on solar or astronomical data. Anders & Grevesse 1989
Solar System   20Ne/36Ar 37             Anders & Grevesse 1989
Solar System   20Ne/36Ar 26             Solar system Noble Gas ratios as measured by Cameron 1982. Anders & Grevesse 1989 Cameron 1982
Solar System   20Ne/36Ar 37             Solar system Noble Gas ratios as measured by Anders & Ebihara 1982. These particular ratio values are high compared to the solar wind and SEP most likely due to different depletions of He and Ne in SEPs. Anders & Grevesse 1989 Anders & Ebihara 1982
Solar System   20Ne/36Ar 40             Solar system Noble Gas ratios as measured by Marti et al. 1972. Anders & Grevesse 1989 Marti et al. 1972
Solar System   36Ar/84Kr 2500             Solar system Noble Gas ratios as measured by Marti et al. 1972. Anders & Grevesse 1989 Marti et al. 1972
Solar System   36Ar/84Kr 3800             Solar system Noble Gas ratios as measured by Cameron 1982. Anders & Grevesse 1989 Cameron 1982
Solar System   36Ar/84Kr 3380             Solar system Noble Gas ratios as measured by Anders & Ebihara 1982. These particular ratio values are high compared to the solar wind and SEP most likely due to different depletions of He and Ne in SEPs. Anders & Grevesse 1989 Anders & Ebihara 1982
Solar System   36Ar/84Kr 3320             Anders & Grevesse 1989
Solar System   38Ar/36Ar 0.1825             Helium, Neodymium and Argon Isotopic compositions in the Solar System as first given by McDougall and Honda 1998. Hilton & Porcelli 2004 McDougall & Honda 1998
Solar System   40Ar/36Ar 0.0003             Helium, Neodymium and Argon Isotopic compositions in the Solar System as first given by McDougall and Honda 1998. Hilton & Porcelli 2004 McDougall & Honda 1998
Solar System 18 Ar 106000             Anders & Ebihara 1982 Cameron 1982
Solar System 18 Ar 101000   6060         Solar atomic abundances. Values are not normalised to 100% but they are relative to 10E6 Silica atoms. Anders & Grevesse 1989
Solar System 18 Ar 104000   20800         Anders & Ebihara 1982
Solar System 18 Ar 6.4   0.32         Solar system abundance of volatile and refractory elements based on calculations from Palme & Jones 2004 on Highly Volatile elements. Palme & Jones 2004
Solar Wind   20Ne/36Ar 45   10         Noble gas ratios as measured in the solar wind by Bochsler 1987. Anders & Grevesse 1989 Bochsler 1987
Solar Wind   20Ne/36Ar 45   10         Anders & Ebihara 1982 Cerutti 1974
Geiss 1982
Solar Wind 18 Ar 5.85   0.1         Anders & Grevesse 1989 Bochsler 1987
Solid Earth   38Ar/36Ar 0.188             Helium, Neodymium and Argon Isotopic compositions in the Solar System as first given by McDougall and Honda 1998. Hilton & Porcelli 2004 McDougall & Honda 1998
Solid Earth   40Ar/36Ar 0.0003             Helium, Neodymium and Argon Isotopic compositions in the Solar System as first given by McDougall and Honda 1998. Hilton & Porcelli 2004 McDougall & Honda 1998
Venus Atmosphere   36Ar 30     20 50     Abundance of various elements, isotopes and compounds to give a representative chemical composition model of the atmosphere found on Venus. Fegley, Jr. 2004 Lodders & Fegley 1998
Wieler 2002
Venus Atmosphere   36Ar/38Ar 5.45   0.1         Isotopic composition of Venus' atmosphere as obtained by Pioneer Venus Mass Spectroscopy as well as from Venera 11/12 Mass specrometer. Fegley, Jr. 2004 Lodders & Fegley 1998
Wieler 2002
Venus Atmosphere   38Ar 5.5             Abundance of various elements, isotopes and compounds to give a representative chemical composition model of the atmosphere found on Venus. Fegley, Jr. 2004 Lodders & Fegley 1998
Wieler 2002
Venus Atmosphere   40Ar 31     21 51     Abundance of various elements, isotopes and compounds to give a representative chemical composition model of the atmosphere found on Venus. Fegley, Jr. 2004 Lodders & Fegley 1998
Wieler 2002
Venus Atmosphere   40Ar/36Ar 1.11   0.02         Isotopic composition of Venus' atmosphere as obtained by Pioneer Venus Mass Spectroscopy as well as from Venera 11/12 Mass specrometer. Fegley, Jr. 2004 Lodders & Fegley 1998
Wieler 2002
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