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Carbon can be divided into four separate components, identified on the basis of combustion temperature and isotopic composition : (1) carbonates (possibly calcite; 1.2 ppm with δ^\u003c13\u003eC\u0026acd;-23‰); (2) magmatic carbon (1 ppm; δ^\u003c13\u003eC\u0026acd;-35±10‰); (3) martian atmospheric species and (4) cosmogenic carbon. The last three components can also be recognised in terms of their calculated nitrogen isotopic compositions. The isotopically-light carbonate in Y79 conforms to the observations made on other shergottites, that these meteorites have not been altered by surficial fluids in contact with the martian atmosphere, but rather contain carbonates produced from primary magmatic fluids. 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The approximate ^\u003c21\u003eNe exposure age of Y79 is \u0026acd;4 Myr, slightly higher than values for other lherzolitic shergottites.", "subitem_description_type": "Other"}]}, "item_1_identifier_registration": {"attribute_name": "ID登録", "attribute_value_mlt": [{"subitem_identifier_reg_text": "10.15094/00005894", "subitem_identifier_reg_type": "JaLC"}]}, "item_1_publisher_22": {"attribute_name": "出版者", "attribute_value_mlt": [{"subitem_publisher": "National Institute of Polar Research"}]}, "item_1_source_id_13": {"attribute_name": "雑誌書誌ID", "attribute_value_mlt": [{"subitem_source_identifier": "AA11182426", "subitem_source_identifier_type": "NCID"}]}, "item_1_text_10": {"attribute_name": "著者所属(英)", "attribute_value_mlt": [{"subitem_text_language": "en", "subitem_text_value": "Department of Mineralogy, The Natural History Museum/Planetary Sciences Research Institute, The Open University/Planetary Sciences Research Institute, The Open University/Planetary Sciences Research Institute, The Open University"}]}, "item_files": {"attribute_name": "ファイル情報", "attribute_type": "file", "attribute_value_mlt": [{"accessrole": "open_date", "date": [{"dateType": "Available", "dateValue": "1997-09-01"}], "displaytype": "detail", "download_preview_message": "", "file_order": 0, "filename": "KJ00000040886.pdf", "filesize": [{"value": "1.6 MB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_6", "mimetype": "application/pdf", "size": 1600000.0, "url": {"label": "KJ00000040886", "url": "https://nipr.repo.nii.ac.jp/record/5894/files/KJ00000040886.pdf"}, "version_id": "c6d07b8f-67da-4cec-9708-fcf8ac5b811f"}]}, "item_language": {"attribute_name": "言語", "attribute_value_mlt": [{"subitem_language": "eng"}]}, "item_resource_type": {"attribute_name": "資源タイプ", "attribute_value_mlt": [{"resourcetype": "departmental bulletin paper", "resourceuri": "http://purl.org/coar/resource_type/c_6501"}]}, "item_title": "The light element geochemistry of Yamato-793605", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "The light element geochemistry of Yamato-793605"}]}, "item_type_id": "1", "owner": "4", "path": ["774"], "permalink_uri": "https://doi.org/10.15094/00005894", "pubdate": {"attribute_name": "公開日", "attribute_value": "1997-09-01"}, "publish_date": "1997-09-01", "publish_status": "0", "recid": "5894", "relation": {}, "relation_version_is_last": true, "title": ["The light element geochemistry of Yamato-793605"], "weko_shared_id": 4}
The light element geochemistry of Yamato-793605
https://doi.org/10.15094/00005894
https://doi.org/10.15094/000058949f458254-5a24-4183-b24a-e3d946081f61
名前 / ファイル | ライセンス | アクション |
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KJ00000040886 (1.6 MB)
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Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||
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公開日 | 1997-09-01 | |||||
タイトル | ||||||
タイトル | The light element geochemistry of Yamato-793605 | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | departmental bulletin paper | |||||
ID登録 | ||||||
ID登録 | 10.15094/00005894 | |||||
ID登録タイプ | JaLC | |||||
ページ属性 | ||||||
内容記述タイプ | Other | |||||
内容記述 | P(論文) | |||||
著者名(英) |
Grady,Monica M.
× Grady,Monica M.× Verchovsky,A.B.× Wright,I.P.× Pillinger,C. T. |
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著者所属(英) | ||||||
en | ||||||
Department of Mineralogy, The Natural History Museum/Planetary Sciences Research Institute, The Open University/Planetary Sciences Research Institute, The Open University/Planetary Sciences Research Institute, The Open University | ||||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Carbon, nitrogen, neon and argon abundances and isotopic compositions have been determined by stepped combustion-mass spectrometry on aliquots of the lherzolitic shergottite Yamato (Y)-793605. The meteorite has the lowest carbon abundance of any martian meteorite so far analysed. Once terrestrial contamination has been removed, Y79 contains only 7.3 ppm carbon with a δ^<13>C∿-19‰. Carbon can be divided into four separate components, identified on the basis of combustion temperature and isotopic composition : (1) carbonates (possibly calcite; 1.2 ppm with δ^<13>C∿-23‰); (2) magmatic carbon (1 ppm; δ^<13>C∿-35±10‰); (3) martian atmospheric species and (4) cosmogenic carbon. The last three components can also be recognised in terms of their calculated nitrogen isotopic compositions. The isotopically-light carbonate in Y79 conforms to the observations made on other shergottites, that these meteorites have not been altered by surficial fluids in contact with the martian atmosphere, but rather contain carbonates produced from primary magmatic fluids. Neon and argon data were acquired simultaneously with nitrogen, but the small temperature increments selected for the analysis (to maximise information from the nitrogen experiment) resulted in low quantities of the noble gases being released, amounts close to that of the system blank. Only ^<21>Ne yielded an abundance (2.2×10^<-8>cm^3 g^<-1> STP) much higher than the blank, concentrations which, on the basis of their ^<21>Ne/^<22>Ne and ^<20>Ne/^<22>Ne ratios were found to be a 9 : 1 mix of cosmogenic neon with terrestrial atmospheric neon (from the blank). The approximate ^<21>Ne exposure age of Y79 is ∿4 Myr, slightly higher than values for other lherzolitic shergottites. | |||||
雑誌書誌ID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA11182426 | |||||
書誌情報 |
Antarctic meteorite research 巻 10, p. 151-162, 発行日 1997-09 |
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出版者 | ||||||
出版者 | National Institute of Polar Research |