Noble gases, nitrogen and cosmic ray exposure age of the Sulagiri chondrite
The Sulagiri meteorite fell in India on 12 September 2008, LL6 chondrite class is the largest among all the Indian meteorites. Isotopic compositions of noble gases (He, Ne, Ar, Kr and Xe) and nitrogen in the Sulagiri meteorite and cosmic ray exposure history are discussed. Low cosmogenic (22Ne/21Ne)...
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| Format: | Article |
| Language: | English |
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Elsevier
2017-01-01
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| Series: | Geoscience Frontiers |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1674987116000074 |
| _version_ | 1797706663822622720 |
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| author | Ramakant R. Mahajan |
| author_facet | Ramakant R. Mahajan |
| author_sort | Ramakant R. Mahajan |
| collection | DOAJ |
| description | The Sulagiri meteorite fell in India on 12 September 2008, LL6 chondrite class is the largest among all the Indian meteorites. Isotopic compositions of noble gases (He, Ne, Ar, Kr and Xe) and nitrogen in the Sulagiri meteorite and cosmic ray exposure history are discussed. Low cosmogenic (22Ne/21Ne)c ratio is consistent with irradiation in a large body. Cosmogenic noble gases indicate that Sulagiri has a 4π cosmic-ray exposure (CRE) age of 27.9 ± 3.4 Ma and is a member of the peak of CRE age distribution of LL chondrites. Radiogenic 4He and 40Ar concentrations in Sulagiri yields the radiogenic ages as 2.29 and 4.56 Ga, indicating the loss of He from the meteorite. Xenon and krypton are mixture of Q and spallogenic components. |
| first_indexed | 2024-03-12T05:55:39Z |
| format | Article |
| id | doaj.art-95792ae01d7445c3bd69ea21b6002387 |
| institution | Directory Open Access Journal |
| issn | 1674-9871 |
| language | English |
| last_indexed | 2024-03-12T05:55:39Z |
| publishDate | 2017-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Geoscience Frontiers |
| spelling | doaj.art-95792ae01d7445c3bd69ea21b60023872023-09-03T04:40:36ZengElsevierGeoscience Frontiers1674-98712017-01-018120521010.1016/j.gsf.2015.12.010Noble gases, nitrogen and cosmic ray exposure age of the Sulagiri chondriteRamakant R. MahajanThe Sulagiri meteorite fell in India on 12 September 2008, LL6 chondrite class is the largest among all the Indian meteorites. Isotopic compositions of noble gases (He, Ne, Ar, Kr and Xe) and nitrogen in the Sulagiri meteorite and cosmic ray exposure history are discussed. Low cosmogenic (22Ne/21Ne)c ratio is consistent with irradiation in a large body. Cosmogenic noble gases indicate that Sulagiri has a 4π cosmic-ray exposure (CRE) age of 27.9 ± 3.4 Ma and is a member of the peak of CRE age distribution of LL chondrites. Radiogenic 4He and 40Ar concentrations in Sulagiri yields the radiogenic ages as 2.29 and 4.56 Ga, indicating the loss of He from the meteorite. Xenon and krypton are mixture of Q and spallogenic components.http://www.sciencedirect.com/science/article/pii/S1674987116000074Noble gasesNitrogenCosmic ray exposure ageMeteoriteTrapped gases |
| spellingShingle | Ramakant R. Mahajan Noble gases, nitrogen and cosmic ray exposure age of the Sulagiri chondrite Geoscience Frontiers Noble gases Nitrogen Cosmic ray exposure age Meteorite Trapped gases |
| title | Noble gases, nitrogen and cosmic ray exposure age of the Sulagiri chondrite |
| title_full | Noble gases, nitrogen and cosmic ray exposure age of the Sulagiri chondrite |
| title_fullStr | Noble gases, nitrogen and cosmic ray exposure age of the Sulagiri chondrite |
| title_full_unstemmed | Noble gases, nitrogen and cosmic ray exposure age of the Sulagiri chondrite |
| title_short | Noble gases, nitrogen and cosmic ray exposure age of the Sulagiri chondrite |
| title_sort | noble gases nitrogen and cosmic ray exposure age of the sulagiri chondrite |
| topic | Noble gases Nitrogen Cosmic ray exposure age Meteorite Trapped gases |
| url | http://www.sciencedirect.com/science/article/pii/S1674987116000074 |
| work_keys_str_mv | AT ramakantrmahajan noblegasesnitrogenandcosmicrayexposureageofthesulagirichondrite |