{"_buckets": {"deposit": "e4bf829b-23a8-4ec8-8b43-4327b3348649"}, "_deposit": {"id": "11701", "owners": [], "pid": {"revision_id": 0, "type": "depid", "value": "11701"}, "status": "published"}, "_oai": {"id": "oai:nagoya.repo.nii.ac.jp:00011701", "sets": ["1243"]}, "author_link": ["81450", "81451", "81452", "81453", "81454", "81455"], "item_1615768549627": {"attribute_name": "出版タイプ", "attribute_value_mlt": [{"subitem_version_resource": "http://purl.org/coar/version/c_970fb48d4fbd8a85", "subitem_version_type": "VoR"}]}, "item_9_alternative_title_19": {"attribute_name": "その他のタイトル", "attribute_value_mlt": [{"subitem_alternative_title": "Carbon-14 activities in recently fallen meteorites and Antarcitic Yamato meteorites(Proceedings of the 15^\u003cth\u003e Symposium on Researches Using the Tandetron AMS System at Nagoya University in 2002)", "subitem_alternative_title_language": "en"}]}, "item_9_biblio_info_6": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2003-03", "bibliographicIssueDateType": "Issued"}, "bibliographicPageEnd": "82", "bibliographicPageStart": "72", "bibliographicVolumeNumber": "14", "bibliographic_titles": [{"bibliographic_title": "名古屋大学加速器質量分析計業績報告書", "bibliographic_titleLang": "ja"}]}]}, "item_9_description_4": {"attribute_name": "抄録", "attribute_value_mlt": [{"subitem_description": "The storage time of a meteorite on the Earth\u0027s surface, its terrestrial age, can be determined by the decay of cosmic-ray-produced radionuclides. The radionuclide ^\u003c14\u003eC is very useful for determining the age, especially younger age than 〜30 kyr. We have attempted measuring reliable ^\u003c14\u003eC terrestrial ages of Antarctic meteorites by AMS at Nagoya University. There was a problem that a fixed blank exists when carbon was extracted from meteorite, and the blank effect was large due to little ^\u003c14\u003eC in meteorite. So we improved the previous carbon extraction method to combust the mixture of a meteorite sample and an iron standard including nearly ^\u003c14\u003eC-free carbon of 0.052% in the RF furnace (LECO HF-10) and extracted ^\u003c14\u003eCO_2 was diluted at the same time when the meteorite was combusted. The ^\u003c14\u003eC activities of recently fallen meteorites of Holbrook (L6) and Mt.Tazerzait (L5) were measured by using the method. The mean value was 56.5±3.2 dpm/kg. This value is suitable, compared with the reported value of 52.7±4.3 dpm/kg for recently fallen L6 chondrites. Terrestrial ages were measured for three Antarctic Yamato meteorite samples: 0.8±0.5 kyr of Y-74190 (L6), 1.7±0.5 kyr of Y-75097 (L6), and 1.8±0.5 kyr of Y-75108 (L6). These values are younger than the data by Minami and Nakamura (2002) but agree with the value reported by Jull et al. (1984). The five samples of Y-74190, Y-75097 and Y-75108, together with Y-75102 and Y-75271, are considered the same origin (Takaoka, 1987). From the results in this study and Minami and Nakamura (2002), Y-75097 and Y-75108 could be originated from the same meteoroid, while Y-74190 could have the different origin because its terrestrial age is younger. However, the large difference is not observed in major element compositions of these meteorites. Furthermore, there is a possibility that Y-74190 existed at deeper depth of a meteoroid than the other two samples from the data of ^3He/^\u003c21\u003eNe, ^\u003c22\u003eNe/^\u003c21\u003eNe and ^\u003c53\u003eMn (Takaoka, 1987). Y-74190 could have the near terrestrial age to Y-75097 and Y-75108, by shielding or depth corrections in a meteoroid. The shielding or depth corrections are needed for ^\u003c14\u003eC terrestrial age determination of a meteorite sample if the meteoroid was very large or very small. By normalizing the saturated activity of ^\u003c14\u003eC to that of ^\u003c10\u003eBe in a meteorite, more correct terrestrial age for the meteorite could be obtained.", "subitem_description_language": "en", "subitem_description_type": "Abstract"}]}, "item_9_description_5": {"attribute_name": "内容記述", "attribute_value_mlt": [{"subitem_description": "第15回名古屋大学タンデトロン加速器質量分析計シンポジウム(平成14年(2002年度)報告 Proceedings of the 15th Symposium on Researches Using the Tandetron AMS System at Nagoya University in 2002 日時:平成15 (2003)年1月30日(木)､31日(金) 会場:名古屋大学シンポジオン Date:January 30th and 31st,2003 Place:Nagoya University Symposion Hall", "subitem_description_language": "ja", "subitem_description_type": "Other"}]}, "item_9_identifier_registration": {"attribute_name": "ID登録", "attribute_value_mlt": [{"subitem_identifier_reg_text": "10.18999/sumrua.14.72", "subitem_identifier_reg_type": "JaLC"}]}, "item_9_publisher_32": {"attribute_name": "出版者", "attribute_value_mlt": [{"subitem_publisher": "名古屋大学年代測定資料研究センター", "subitem_publisher_language": "ja"}]}, "item_9_relation_43": {"attribute_name": "関連情報", "attribute_value_mlt": [{"subitem_relation_type": "isVersionOf", "subitem_relation_type_id": {"subitem_relation_type_id_text": "http://ci.nii.ac.jp/naid/110007150865/", "subitem_relation_type_select": "URI"}}]}, "item_9_rights_12": {"attribute_name": "権利", "attribute_value_mlt": [{"subitem_rights": "名古屋大学年代測定資料研究センター", "subitem_rights_language": "ja"}, {"subitem_rights": "本文データは学協会の許諾に基づきCiNiiから複製したものである", "subitem_rights_language": "ja"}]}, "item_9_select_15": {"attribute_name": "著者版フラグ", "attribute_value_mlt": [{"subitem_select_item": "publisher"}]}, "item_9_text_14": {"attribute_name": "フォーマット", "attribute_value_mlt": [{"subitem_text_value": "application/pdf"}]}, "item_access_right": {"attribute_name": "アクセス権", "attribute_value_mlt": [{"subitem_access_right": "open access", "subitem_access_right_uri": "http://purl.org/coar/access_right/c_abf2"}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "南, 雅代", "creatorNameLang": "ja"}], "nameIdentifiers": [{"nameIdentifier": "81450", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Minami, Masayo", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "81451", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "照井, 敦", "creatorNameLang": "ja"}], "nameIdentifiers": [{"nameIdentifier": "81452", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Terui, Atsushi", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "81453", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "中村, 俊夫", "creatorNameLang": "ja"}], "nameIdentifiers": [{"nameIdentifier": "81454", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Nakamura, Toshio", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "81455", "nameIdentifierScheme": "WEKO"}]}]}, "item_files": {"attribute_name": "ファイル情報", "attribute_type": "file", "attribute_value_mlt": [{"accessrole": "open_date", "date": [{"dateType": "Available", "dateValue": "2018-02-20"}], "displaytype": "detail", "download_preview_message": "", "file_order": 0, "filename": "KJ00005461726.pdf", "filesize": [{"value": "670.2 kB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_note", "mimetype": "application/pdf", "size": 670200.0, "url": {"label": "KJ00005461726.pdf", "objectType": "fulltext", "url": "https://nagoya.repo.nii.ac.jp/record/11701/files/KJ00005461726.pdf"}, "version_id": "829565d9-a795-46ac-87a3-13e926773827"}]}, "item_language": {"attribute_name": "言語", "attribute_value_mlt": [{"subitem_language": "jpn"}]}, "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": "最近落下した隕石ならびに南極やまと隕石の ^\u003c14\u003eC濃度測定(第15回名古屋大学タンデトロン加速器質量分析計シンポジウム(平成14(2002)年度)報告)", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "最近落下した隕石ならびに南極やまと隕石の ^\u003c14\u003eC濃度測定(第15回名古屋大学タンデトロン加速器質量分析計シンポジウム(平成14(2002)年度)報告)", "subitem_title_language": "ja"}]}, "item_type_id": "9", "owner": "1", "path": ["1243"], "permalink_uri": "https://doi.org/10.18999/sumrua.14.72", "pubdate": {"attribute_name": "PubDate", "attribute_value": "2010-06-02"}, "publish_date": "2010-06-02", "publish_status": "0", "recid": "11701", "relation": {}, "relation_version_is_last": true, "title": ["最近落下した隕石ならびに南極やまと隕石の ^\u003c14\u003eC濃度測定(第15回名古屋大学タンデトロン加速器質量分析計シンポジウム(平成14(2002)年度)報告)"], "weko_shared_id": -1}