{"created":"2023-11-08T05:43:28.940939+00:00","id":2000346,"links":{},"metadata":{"_buckets":{"deposit":"4311de8a-6f54-4cb5-a486-f14b6684fcd1"},"_deposit":{"created_by":42,"id":"2000346","owners":[42],"pid":{"revision_id":0,"type":"depid","value":"2000346"},"status":"published"},"_oai":{"id":"oai:kindai.repo.nii.ac.jp:02000346","sets":["14:2667:1697004343623"]},"author_link":[],"item_1693381679919":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"report","resourceuri":"http://purl.org/coar/resource_type/c_93fc"}]},"item_30001_bibliographic_information17":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicNumberOfPages":"7","bibliographic_titles":[{"bibliographic_title":"科学研究費助成事業研究成果報告書 (2022)","bibliographic_titleLang":"ja"}]}]},"item_30001_creator2":{"attribute_name":"研究代表者","attribute_type":"creator","attribute_value_mlt":[{"creatorAffiliations":[{"affiliationNameIdentifiers":[{"affiliationNameIdentifier":"34419","affiliationNameIdentifierScheme":"kakenhi"}],"affiliationNames":[{"affiliationName":"近畿大学","affiliationNameLang":"ja"},{"affiliationName":"Kindai University","affiliationNameLang":"en"}]}],"creatorNames":[{"creatorName":"道上, 達広","creatorNameLang":"ja"},{"creatorName":"Michikami, Tatsuhiro","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"60369931","nameIdentifierScheme":"e-Rad"}]}]},"item_30001_description8":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"炭素質隕石に対して衝突実験を行い、生じたクラックの３次元分布をX線CT撮像（衝突前後に撮像）から明らかにした。その結果、CM隕石においては、クラックは、コンドリュールの境界に関係なく成長することが分かった（水質変成を受けた部分の強度が弱くなり、そこにクラックが存在している）。一方、衝突でない、熱疲労でクラックが生じる場合、熱膨張率の違いから、クラックはコンドリュールの境界に沿って成長することが知られている。将来、CM隕石と同じ物質であろう小惑星ベンヌから持ち帰られるサンプル粒子を調査し、今回の実験結果と比較することで、小惑星ベンヌの表層の形成過程を推定（衝突か熱疲労か）することができる。","subitem_description_language":"ja","subitem_description_type":"Abstract"},{"subitem_description":"In order to investigate how chondrules are affected by impact-induced crack growth, we fired spherical alumina and glass projectiles (diameter 1 and 0.8 mm) into 1 to 2 cm-sized targets of carbonaceous meteorites at a nominal impact velocity of 2.0 and 4.0 km/s. Before and after the six successful impact experiments, the cracks within chondrules in the respective targets are examined using X-ray microtomography at a resolution with the voxel size of ～10 um. The results show that most cracks in CM chondrites grow regardless of the boundary surfaces of the chondrules. We found that most chondrules in CM chondrites have experienced aqueous alteration and become structurally weak.","subitem_description_language":"en","subitem_description_type":"Abstract"},{"subitem_description":"研究分野：惑星科学","subitem_description_language":"ja","subitem_description_type":"Other"}]},"item_30001_file22":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_access","filename":"20K04048seika.pdf","format":"application/pdf","mimetype":"application/pdf","url":{"url":"https://kindai.repo.nii.ac.jp/record/2000346/files/20K04048seika.pdf"},"version_id":"e3a51390-47c6-49af-a47b-ac8d8de16abe"}]},"item_30001_funding_reference15":{"attribute_name":"助成情報","attribute_value_mlt":[{"subitem_award_numbers":{"subitem_award_number":"20K04048","subitem_award_uri":"https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20K04048/"},"subitem_award_titles":[{"subitem_award_title":"炭素質隕石に対する衝突実験とX線CT撮像～小惑星リュウグウへの応用","subitem_award_title_language":"ja"},{"subitem_award_title":"Cracking the chondrules of carbonaceous meteorites in hypervelocity impact  experiments.","subitem_award_title_language":"en"}],"subitem_funder_names":[{"subitem_funder_name":"独立行政法人日本学術振興会","subitem_funder_name_language":"ja"},{"subitem_funder_name":"Japan Society for the Promotion of Science","subitem_funder_name_language":"en"}]}]},"item_30001_language10":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_30001_subject7":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"小惑星リュウグウ","subitem_subject_language":"ja","subitem_subject_scheme":"Other"},{"subitem_subject":"衝突実験","subitem_subject_language":"ja","subitem_subject_scheme":"Other"},{"subitem_subject":"コンドライト隕石","subitem_subject_language":"ja","subitem_subject_scheme":"Other"},{"subitem_subject":"X線CT撮像実験","subitem_subject_language":"ja","subitem_subject_scheme":"Other"},{"subitem_subject":"小惑星ベンヌ","subitem_subject_language":"ja","subitem_subject_scheme":"Other"}]},"item_30001_title0":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"炭素質隕石に対する衝突実験とX線CT撮像～小惑星リュウグウへの応用","subitem_title_language":"ja"},{"subitem_title":"Cracking the chondrules of carbonaceous meteorites in hypervelocity impact  experiments.","subitem_title_language":"en"}]},"item_30001_version_type12":{"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_title":"炭素質隕石に対する衝突実験とX線CT撮像～小惑星リュウグウへの応用","item_type_id":"40001","owner":"42","path":["1697004343623"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2023-11-08"},"publish_date":"2023-11-08","publish_status":"0","recid":"2000346","relation_version_is_last":true,"title":["炭素質隕石に対する衝突実験とX線CT撮像～小惑星リュウグウへの応用"],"weko_creator_id":"42","weko_shared_id":-1},"updated":"2024-10-23T00:49:23.688855+00:00"}