WEKO3
アイテム
{"_buckets": {"deposit": "e6d8a147-c0b2-4016-a556-ae5b2ac7d893"}, "_deposit": {"created_by": 4, "id": "5927", "owners": [4], "pid": {"revision_id": 0, "type": "depid", "value": "5927"}, "status": "published"}, "_oai": {"id": "oai:nipr.repo.nii.ac.jp:00005927", "sets": ["775"]}, "author_link": ["43987", "43989", "43988", "43986", "9856"], "item_1_biblio_info_14": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "1998-03", "bibliographicIssueDateType": "Issued"}, "bibliographicPageEnd": "121", "bibliographicPageStart": "103", "bibliographicVolumeNumber": "11", "bibliographic_titles": [{"bibliographic_title": "Antarctic meteorite research"}]}]}, "item_1_creator_8": {"attribute_name": "著者名(英)", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "Kita,Noriko T.", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "9856", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Togashi,Shigeko", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "43986", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Morishita,Yuichi", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "43987", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Terashima,Shigeru", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "43988", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Yurimoto,Hisayoshi", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "43989", "nameIdentifierScheme": "WEKO"}]}]}, "item_1_description_1": {"attribute_name": "ページ属性", "attribute_value_mlt": [{"subitem_description": "P(論文)", "subitem_description_type": "Other"}]}, "item_1_description_12": {"attribute_name": "抄録(英)", "attribute_value_mlt": [{"subitem_description": "We have developed a technique for in-situ Ni isotopic analysis using the ion microprobe, in order to detect ^\u003c60\u003eNi excess from the decay of the short lived nuclide ^\u003c60\u003eFe (half life=1.5Ma) in ureilite samples. The silicate minerals from MET-78008 ureilite with an old U-Pb age of 4.563±0.006 Ga were analyzed. The ^\u003c56\u003eFe/^\u003c58\u003eNi ratios of olivine and orthopyroxene are between 2700 and 5400. In spite of the high Fe/Ni ratios, we could not observe any detectable ^\u003c60\u003eNi excess. From the mean value of olivine core data, we obtain an upper limit of the ^\u003c60\u003eFe/^\u003c56\u003eFe ratio at the time of ureilite formation of 1.8×10^\u003c-7\u003e. The time difference between CAI formation and ureilite formation was estimated to be more than 4 million years, which is consistent with the UPb data from the same meteorite. We concluded that the impact event for the disruption of the ureilite parent body happened more than 4 million years after CAI formation. However, a large uncertainty in the initial ^\u003c60\u003eFe/^\u003c56\u003eFe ratio is introduced by the possibility that the ^\u003c60\u003eNi excess observed in CAIs is of nucleosynthetic origin. Our conclusion may change if the initial ^\u003c60\u003eFe/^\u003c56\u003eFe ratio of the solar system using CAI data is too high.", "subitem_description_type": "Other"}]}, "item_1_identifier_registration": {"attribute_name": "ID登録", "attribute_value_mlt": [{"subitem_identifier_reg_text": "10.15094/00005927", "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": "Geological Survey of Japan/Geological Survey of Japan/Geological Survey of Japan/Geological Survey of Japan/Dept. Earth and Planetary Science, Faculty of Science, Tokyo Institute of Technology"}]}, "item_files": {"attribute_name": "ファイル情報", "attribute_type": "file", "attribute_value_mlt": [{"accessrole": "open_date", "date": [{"dateType": "Available", "dateValue": "1998-03-01"}], "displaytype": "detail", "download_preview_message": "", "file_order": 0, "filename": "KJ00000040919.pdf", "filesize": [{"value": "2.6 MB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_6", "mimetype": "application/pdf", "size": 2600000.0, "url": {"label": "KJ00000040919", "url": "https://nipr.repo.nii.ac.jp/record/5927/files/KJ00000040919.pdf"}, "version_id": "a35b5c38-b2e2-49f5-925e-ee9af82015b9"}]}, "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": "Search for 60Ni excesses in MET-78008 ureilite: An ion microprobe study", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "Search for 60Ni excesses in MET-78008 ureilite: An ion microprobe study"}]}, "item_type_id": "1", "owner": "4", "path": ["775"], "permalink_uri": "https://doi.org/10.15094/00005927", "pubdate": {"attribute_name": "公開日", "attribute_value": "1998-03-01"}, "publish_date": "1998-03-01", "publish_status": "0", "recid": "5927", "relation": {}, "relation_version_is_last": true, "title": ["Search for 60Ni excesses in MET-78008 ureilite: An ion microprobe study"], "weko_shared_id": 4}
Search for 60Ni excesses in MET-78008 ureilite: An ion microprobe study
https://doi.org/10.15094/00005927
https://doi.org/10.15094/00005927a2dd9548-08f5-4c8e-90b6-5319b4575d30
名前 / ファイル | ライセンス | アクション |
---|---|---|
KJ00000040919 (2.6 MB)
|
Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||
---|---|---|---|---|---|---|
公開日 | 1998-03-01 | |||||
タイトル | ||||||
タイトル | Search for 60Ni excesses in MET-78008 ureilite: An ion microprobe study | |||||
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 | 10.15094/00005927 | |||||
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) |
Kita,Noriko T.
× Kita,Noriko T.× Togashi,Shigeko× Morishita,Yuichi× Terashima,Shigeru× Yurimoto,Hisayoshi |
|||||
著者所属(英) | ||||||
en | ||||||
Geological Survey of Japan/Geological Survey of Japan/Geological Survey of Japan/Geological Survey of Japan/Dept. Earth and Planetary Science, Faculty of Science, Tokyo Institute of Technology | ||||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | We have developed a technique for in-situ Ni isotopic analysis using the ion microprobe, in order to detect ^<60>Ni excess from the decay of the short lived nuclide ^<60>Fe (half life=1.5Ma) in ureilite samples. The silicate minerals from MET-78008 ureilite with an old U-Pb age of 4.563±0.006 Ga were analyzed. The ^<56>Fe/^<58>Ni ratios of olivine and orthopyroxene are between 2700 and 5400. In spite of the high Fe/Ni ratios, we could not observe any detectable ^<60>Ni excess. From the mean value of olivine core data, we obtain an upper limit of the ^<60>Fe/^<56>Fe ratio at the time of ureilite formation of 1.8×10^<-7>. The time difference between CAI formation and ureilite formation was estimated to be more than 4 million years, which is consistent with the UPb data from the same meteorite. We concluded that the impact event for the disruption of the ureilite parent body happened more than 4 million years after CAI formation. However, a large uncertainty in the initial ^<60>Fe/^<56>Fe ratio is introduced by the possibility that the ^<60>Ni excess observed in CAIs is of nucleosynthetic origin. Our conclusion may change if the initial ^<60>Fe/^<56>Fe ratio of the solar system using CAI data is too high. | |||||
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 11, p. 103-121, 発行日 1998-03 |
|||||
出版者 | ||||||
出版者 | National Institute of Polar Research |