GERM Reservoir Database
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GERM Database Search Results        
Reservoir Z Element Value Median SD Low High N Unit Info Reference Source(s)
Earth 13 Al 1.8           ppm Model composition of the Earth as first noted by Ganapathy & Anders 1974. The values are notably less for the 'cosmic' elements than that of the chondrites and eucrites which of course is to be expected, and enriched in the more terrestrial elements. Morgan et al. 1978 Ganapathy & Anders 1974
Earth 20 Ca 1.9           ppm Model composition of the Earth as first noted by Ganapathy & Anders 1974. The values are notably less for the 'cosmic' elements than that of the chondrites and eucrites which of course is to be expected, and enriched in the more terrestrial elements. Morgan et al. 1978 Ganapathy & Anders 1974
Earth 26 Fe 8           wt% Earth bulk planet FeO concentration as given in wt%.These are the most reasonable estimates of the bulk compositions of the planets made on the basis of the compositions of rocks from their surfaces or, for Earth, surface and mantle. Taylor & Scott 2004 Jagoutz et al. 1979
Taylor & McLennan 1985
McDonough & Sun 1995
Earth 26 Fe 35.9           ppm Model composition of the Earth as first noted by Ganapathy & Anders 1974. The values are notably less for the 'cosmic' elements than that of the chondrites and eucrites which of course is to be expected, and enriched in the more terrestrial elements. Total Fe from FeO + Fe. Morgan et al. 1978 Ganapathy & Anders 1974
Earth 26 Fe 10.5           wt% Earth FeO concentration given in wt% as found in planetary basalts. Taylor & Scott 2004 Melson et al. 1976
Earth 19 K 0.02           ppm Model composition of the Earth as first noted by Ganapathy & Anders 1974. The values are notably less for the 'cosmic' elements than that of the chondrites and eucrites which of course is to be expected, and enriched in the more terrestrial elements. Morgan et al. 1978 Ganapathy & Anders 1974
Earth 12 Mg 13.2           ppm Model composition of the Earth as first noted by Ganapathy & Anders 1974. The values are notably less for the 'cosmic' elements than that of the chondrites and eucrites which of course is to be expected, and enriched in the more terrestrial elements. Morgan et al. 1978 Ganapathy & Anders 1974
Earth 25 Mn 0.06           ppm Model composition of the Earth as first noted by Ganapathy & Anders 1974. The values are notably less for the 'cosmic' elements than that of the chondrites and eucrites which of course is to be expected, and enriched in the more terrestrial elements. Morgan et al. 1978 Ganapathy & Anders 1974
Earth 11 Na 0.16           ppm Model composition of the Earth as first noted by Ganapathy & Anders 1974. The values are notably less for the 'cosmic' elements than that of the chondrites and eucrites which of course is to be expected, and enriched in the more terrestrial elements. Morgan et al. 1978 Ganapathy & Anders 1974
Earth 28 Ni 2           ppm Model composition of the Earth as first noted by Ganapathy & Anders 1974. The values are notably less for the 'cosmic' elements than that of the chondrites and eucrites which of course is to be expected, and enriched in the more terrestrial elements. Morgan et al. 1978 Ganapathy & Anders 1974
Earth 14 Si 14.3           ppm Model composition of the Earth as first noted by Ganapathy & Anders 1974. The values are notably less for the 'cosmic' elements than that of the chondrites and eucrites which of course is to be expected, and enriched in the more terrestrial elements. Morgan et al. 1978 Ganapathy & Anders 1974
Earth 22 Ti 0.1           ppm Model composition of the Earth as first noted by Ganapathy & Anders 1974. The values are notably less for the 'cosmic' elements than that of the chondrites and eucrites which of course is to be expected, and enriched in the more terrestrial elements. Morgan et al. 1978 Ganapathy & Anders 1974
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