{"created":"2021-03-01T06:52:42.624767+00:00","id":33877,"links":{},"metadata":{"_buckets":{"deposit":"e71db5ee-b509-4608-9a78-5326ed2864e9"},"_deposit":{"id":"33877","owner":"1","owners":[],"pid":{"revision_id":0,"type":"depid","value":"33877"},"status":"published"},"_oai":{"id":"oai:repository.dl.itc.u-tokyo.ac.jp:00033877","sets":["80:4535:5007:5011","9:504:4538:5009:5012"]},"author_link":["132139","132138"],"item_4_alternative_title_1":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"20°不運続と電気的性質"}]},"item_4_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1959-10-20","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"3","bibliographicPageEnd":"431","bibliographicPageStart":"423","bibliographicVolumeNumber":"37","bibliographic_titles":[{"bibliographic_title":"東京大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, University of Tokyo"}]}]},"item_4_description_13":{"attribute_name":"フォーマット","attribute_value_mlt":[{"subitem_description":"application/pdf","subitem_description_type":"Other"}]},"item_4_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Assuming olivine-spinel transition of Mg2SiO4 at the depth of 400 km in the earth, the difference in free energy between sub-stances composing the upper and lower mantle is estimated. The difference obtained here is approximately the same as that deduced by Ringwood from experimental results. The influence of the transition on the electrical conductivity is also studied. The steep increase of the electrical conductivity at the depth as inferred from the studies of geomagnetic variations seems to be justified by the transition hypothesis.","subitem_description_type":"Abstract"},{"subitem_description":"最近Ringwoodは,Ni2GeO4-Mg2SiO4固溶体を調べ,地球中間層内に於てMg2Si04がオリビンスピネル転移を起すことが可能であることを推論した.彼の研究によれば,転移に伴なう自由エネルギーの変化は1,500℃に於て70,000±10,000Joule/mole,密度変化は約11%,スピネルMg2SiO4の格子常数は7.99Åとなる.","subitem_description_type":"Abstract"}]},"item_4_full_name_3":{"attribute_name":"著者別名","attribute_value_mlt":[{"nameIdentifiers":[{"nameIdentifier":"132139","nameIdentifierScheme":"WEKO"}],"names":[{"name":"力武, 常次"}]}]},"item_4_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.15083/0000033877","subitem_identifier_reg_type":"JaLC"}]},"item_4_publisher_20":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"東京大学地震研究所"}]},"item_4_source_id_10":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN00162258","subitem_source_identifier_type":"NCID"}]},"item_4_source_id_8":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"00408972","subitem_source_identifier_type":"ISSN"}]},"item_4_subject_15":{"attribute_name":"日本十進分類法","attribute_value_mlt":[{"subitem_subject":"453","subitem_subject_scheme":"NDC"}]},"item_4_text_21":{"attribute_name":"出版者別名","attribute_value_mlt":[{"subitem_text_value":"Earthquake Research Institute,University of Tokyo"}]},"item_4_text_4":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"地震研究所"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Rikitake, Tsuneji"}],"nameIdentifiers":[{"nameIdentifier":"132138","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":"2017-06-27"}],"displaytype":"detail","filename":"ji0373003.pdf","filesize":[{"value":"564.9 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"ji0373003.pdf","url":"https://repository.dl.itc.u-tokyo.ac.jp/record/33877/files/ji0373003.pdf"},"version_id":"1594a4a3-abf1-4cef-a26d-fbbc409e68a5"}]},"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":"Geophysical Evidence of the Olivine-spinel Transition Hypothesis in the Earth's Mantle","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Geophysical Evidence of the Olivine-spinel Transition Hypothesis in the Earth's Mantle","subitem_title_language":"en"}]},"item_type_id":"4","owner":"1","path":["5011","5012"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2008-05-30"},"publish_date":"2008-05-30","publish_status":"0","recid":"33877","relation_version_is_last":true,"title":["Geophysical Evidence of the Olivine-spinel Transition Hypothesis in the Earth's Mantle"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2022-12-19T04:09:10.739572+00:00"}