Hf-W chronometry of lunar metals and the age and early differentiation of the Moon.
The use of hafnium-tungsten chronometry to date the Moon is hampered by cosmogenic tungsten-182 production mainly by neutron capture of tantalum-181 at the lunar surface. We report tungsten isotope data for lunar metals, which contain no 181Ta-derived cosmogenic 182W. The data reveal differences in...
| Main Authors: | , , , |
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| Format: | Journal article |
| Language: | English |
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2005
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| _version_ | 1826259137883799552 |
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| author | Kleine, T Palme, H Mezger, K Halliday, A |
| author_facet | Kleine, T Palme, H Mezger, K Halliday, A |
| author_sort | Kleine, T |
| collection | OXFORD |
| description | The use of hafnium-tungsten chronometry to date the Moon is hampered by cosmogenic tungsten-182 production mainly by neutron capture of tantalum-181 at the lunar surface. We report tungsten isotope data for lunar metals, which contain no 181Ta-derived cosmogenic 182W. The data reveal differences in indigenous 182W/184W of lunar mantle reservoirs, indicating crystallization of the lunar magma ocean 4.527 +/- 0.010 billion years ago. This age is consistent with the giant impact hypothesis and defines the completion of the major stage of Earth's accretion. |
| first_indexed | 2024-03-06T18:45:07Z |
| format | Journal article |
| id | oxford-uuid:0e3b5b8c-8638-4e97-9f79-3a30b63882df |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T18:45:07Z |
| publishDate | 2005 |
| record_format | dspace |
| spelling | oxford-uuid:0e3b5b8c-8638-4e97-9f79-3a30b63882df2022-03-26T09:44:50ZHf-W chronometry of lunar metals and the age and early differentiation of the Moon.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:0e3b5b8c-8638-4e97-9f79-3a30b63882dfEnglishSymplectic Elements at Oxford2005Kleine, TPalme, HMezger, KHalliday, AThe use of hafnium-tungsten chronometry to date the Moon is hampered by cosmogenic tungsten-182 production mainly by neutron capture of tantalum-181 at the lunar surface. We report tungsten isotope data for lunar metals, which contain no 181Ta-derived cosmogenic 182W. The data reveal differences in indigenous 182W/184W of lunar mantle reservoirs, indicating crystallization of the lunar magma ocean 4.527 +/- 0.010 billion years ago. This age is consistent with the giant impact hypothesis and defines the completion of the major stage of Earth's accretion. |
| spellingShingle | Kleine, T Palme, H Mezger, K Halliday, A Hf-W chronometry of lunar metals and the age and early differentiation of the Moon. |
| title | Hf-W chronometry of lunar metals and the age and early differentiation of the Moon. |
| title_full | Hf-W chronometry of lunar metals and the age and early differentiation of the Moon. |
| title_fullStr | Hf-W chronometry of lunar metals and the age and early differentiation of the Moon. |
| title_full_unstemmed | Hf-W chronometry of lunar metals and the age and early differentiation of the Moon. |
| title_short | Hf-W chronometry of lunar metals and the age and early differentiation of the Moon. |
| title_sort | hf w chronometry of lunar metals and the age and early differentiation of the moon |
| work_keys_str_mv | AT kleinet hfwchronometryoflunarmetalsandtheageandearlydifferentiationofthemoon AT palmeh hfwchronometryoflunarmetalsandtheageandearlydifferentiationofthemoon AT mezgerk hfwchronometryoflunarmetalsandtheageandearlydifferentiationofthemoon AT hallidaya hfwchronometryoflunarmetalsandtheageandearlydifferentiationofthemoon |