{"created":"2023-06-20T14:06:47.488821+00:00","id":486,"links":{},"metadata":{"_buckets":{"deposit":"14561b56-0bff-450c-821e-3ffc1e004f63"},"_deposit":{"created_by":10,"id":"486","owners":[10],"pid":{"revision_id":0,"type":"depid","value":"486"},"status":"published"},"_oai":{"id":"oai:naragakuen.repo.nii.ac.jp:00000486","sets":["136:138"]},"author_link":["773","774","772","775"],"item_10001_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2003","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"10","bibliographicPageStart":"1","bibliographicVolumeNumber":"2","bibliographic_titles":[{"bibliographic_title":"情報学フォーラム"},{"bibliographic_title":"Information Science Forum","bibliographic_titleLang":"en"}]}]},"item_10001_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"A model is presented which relates the geological and paleonthological events of the past 300\nmillion years to the sun's passage through the spiral arms of the Galaxy. It is an extension of\nthe ideas presented by McCrea, Clube & Napier and Begelma & Rees, and is based on a recent\nwork of Leitch & Vasishit which shows that the sun was most probably in the spiral arms at the\ntimes of the well-known Cretaceous-Tertiary and Permian-Triassic boundaries. An argument is\npresented which relates the accretion of the IS gas cloud onto the sun to the change in the solar\nluminosity, which in turn brings about the changing rotational period of the earth, whereby the\nboundary layer between the core and the mantle is disturbed to generate a superplume, which\nleads to flood basalts at the surface; a superchron of the geomagnetic field is brought to a halt\nby the greater temperature gradient in the layer. The encounter(s) with IS clouds disturbs the\nOort cloud of comets, injecting comets into the inner solar system, some of them becoming\nearth impactors. It is shown that this model is consistent with geological and palaeonthological\ndata so far known.","subitem_description_type":"Abstract"}]},"item_10001_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"奈良産業大学情オフ学部"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"藪下, 信"},{"creatorName":"ヤブシタ, シン","creatorNameLang":"ja-Kana"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Anthony J., Allen"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Yabushita, Shin","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Anthony J., Allen","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2016-08-26"}],"displaytype":"detail","filename":"yabushita2003a.pdf","filesize":[{"value":"306.8 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"本文PDF","url":"https://naragakuen.repo.nii.ac.jp/record/486/files/yabushita2003a.pdf"},"version_id":"186191b3-9512-4edd-a1f1-eb33e25187a4"}]},"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":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"The Spiral Arms, Superplumes, Superchrons and Mass Extinctions","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"The Spiral Arms, Superplumes, Superchrons and Mass Extinctions"},{"subitem_title":"The Spiral Arms, Superplumes, Superchrons and Mass Extinctions","subitem_title_language":"en"}]},"item_type_id":"10001","owner":"10","path":["138"],"pubdate":{"attribute_name":"公開日","attribute_value":"2016-08-26"},"publish_date":"2016-08-26","publish_status":"0","recid":"486","relation_version_is_last":true,"title":["The Spiral Arms, Superplumes, Superchrons and Mass Extinctions"],"weko_creator_id":"10","weko_shared_id":-1},"updated":"2023-06-20T14:59:16.005547+00:00"}