Water and carbon in the Earth's mantle
The concentrations of H2O and C in mid-ocean ridge basalts indicate that the upper, degassed, part of the mantle contains approximately 200 ppm H2O and 80 ppm C. Estimates for the bulk silicate earth are less precise, but, from geochemical and cosmochemical arguments, values of 550-1900 ppm for H2O...
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| Format: | Conference item |
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1996
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| _version_ | 1797051201880064000 |
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| author | Wood, B Pawley, A Frost, DR |
| author_facet | Wood, B Pawley, A Frost, DR |
| author_sort | Wood, B |
| collection | OXFORD |
| description | The concentrations of H2O and C in mid-ocean ridge basalts indicate that the upper, degassed, part of the mantle contains approximately 200 ppm H2O and 80 ppm C. Estimates for the bulk silicate earth are less precise, but, from geochemical and cosmochemical arguments, values of 550-1900 ppm for H2O and 900-3700 ppm for C are plausible. The implications is that the (undegassed) lower mantle is enriched relative to the upper mantle in these volatile components, but concentrations there are only of the order of 2000 ppm. |
| first_indexed | 2024-03-06T18:16:34Z |
| format | Conference item |
| id | oxford-uuid:04d07c9f-5d89-4e0a-825d-2e6014585c03 |
| institution | University of Oxford |
| last_indexed | 2024-03-06T18:16:34Z |
| publishDate | 1996 |
| record_format | dspace |
| spelling | oxford-uuid:04d07c9f-5d89-4e0a-825d-2e6014585c032022-03-26T08:53:49ZWater and carbon in the Earth's mantleConference itemhttp://purl.org/coar/resource_type/c_5794uuid:04d07c9f-5d89-4e0a-825d-2e6014585c03Symplectic Elements at Oxford1996Wood, BPawley, AFrost, DRThe concentrations of H2O and C in mid-ocean ridge basalts indicate that the upper, degassed, part of the mantle contains approximately 200 ppm H2O and 80 ppm C. Estimates for the bulk silicate earth are less precise, but, from geochemical and cosmochemical arguments, values of 550-1900 ppm for H2O and 900-3700 ppm for C are plausible. The implications is that the (undegassed) lower mantle is enriched relative to the upper mantle in these volatile components, but concentrations there are only of the order of 2000 ppm. |
| spellingShingle | Wood, B Pawley, A Frost, DR Water and carbon in the Earth's mantle |
| title | Water and carbon in the Earth's mantle |
| title_full | Water and carbon in the Earth's mantle |
| title_fullStr | Water and carbon in the Earth's mantle |
| title_full_unstemmed | Water and carbon in the Earth's mantle |
| title_short | Water and carbon in the Earth's mantle |
| title_sort | water and carbon in the earth s mantle |
| work_keys_str_mv | AT woodb waterandcarbonintheearthsmantle AT pawleya waterandcarbonintheearthsmantle AT frostdr waterandcarbonintheearthsmantle |