{"created":"2023-07-25T11:08:46.190464+00:00","id":12706,"links":{},"metadata":{"_buckets":{"deposit":"95b23e33-0ebb-4da1-a6c4-5ac8178216b3"},"_deposit":{"created_by":36,"id":"12706","owners":[36],"pid":{"revision_id":0,"type":"depid","value":"12706"},"status":"published"},"_oai":{"id":"oai:nipr.repo.nii.ac.jp:00012706","sets":[]},"author_link":["35415","35418","35417","35416"],"item_10001_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2016-06","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"2","bibliographicPageEnd":"159","bibliographicPageStart":"147","bibliographicVolumeNumber":"10","bibliographic_titles":[{},{"bibliographic_title":"Polar Science","bibliographic_titleLang":"en"}]}]},"item_10001_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Petrographic and geochemical studies of microtektites collected in newly explored summit plateaus of the Transantarctic Mountains (i.e., Schroeder Spur, Killer Nunatak, Miller Butte in the inland catchment of the Rennick Glacier, and Allan Hills, in the inland catchment of the Mackay-David Glaciers) document a regional distribution of Australasian microtektites in Victoria Land. A geochemical comparison with Australasian microtektites from deep sea sediments at lower latitudes identifies a possible projectile geochemical signature for the first time, and confirms that Transantarctic Mountains microtektites experienced higher thermal regimes. Ballistic calculations reveal that the extraordinary distance of the Transantarctic Mountains microtektites from the hypothetical impact location in Indochina (∼11,000 km) could be more efficiently attained at relatively low ejection angles (20°–40°). Finally, the occurrence of Australasian microtektites (∼0.8 Ma old) on specific glacial surfaces of the Antarctic bedrock constrains the glacial history of the East Antarctic Ice Sheet in Victoria Land. In particular, data from Allan Hills supports a glaciological scenario envisaging an extremely stable East Antarctic Ice Sheet over at least the last ∼1 Ma in the inland catchment of the Mackay/David glaciers. This is consistent with the large accumulation of meteorites in the adjacent blue ice fields.","subitem_description_type":"Abstract"}]},"item_10001_description_6":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"南極横断山脈山頂付近で新しく見つかった微テクタイトの岩石学的特徴および元素組成から、ビクトリアランドにおけるオーストラリア微テクタイトの局所的分布についての報告を行った。低緯度の深海底から採取されたオーストラリア微テクタイトの元素組成との比較から、衝突物の痕跡が見つかったこと、また、南極横断山脈産の微テクタイトは、高温による影響をうけたことを示した。弾道計算によると、仮想的な衝突地点であるインドシナから、非常に離れている南極横断山脈へ（~11,000 km）、比較的低角で効率的に飛ばされたと考えられる。ビクトリアランドにおける氷床上のオーストラリア微テクタイトの産状は、過去100万年において、東南極の氷床が極めて安定であったことを示す。これは、隣接する裸氷帯における隕石集積と調和的である。","subitem_description_type":"Other"}]},"item_10001_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_text":"10.1016/j.polar.2016.02.004"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"http://doi.org/10.1016/j.polar.2016.02.004","subitem_relation_type_select":"DOI"}}]},"item_10001_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"18739652","subitem_source_identifier_type":"ISSN"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"metadata only access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_14cb"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Folco, Luigi","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"35415","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"D'Orazio, Massimo","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"35416","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Gemelli, Maurizio","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"35417","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Rochette, Pierre","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"35418","nameIdentifierScheme":"WEKO"}]}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Microtektite","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Australasian","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Impact cratering","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Transantarctic Mountains","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Bedrock denudation","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"East Antarctic Ice Sheet","subitem_subject_language":"en","subitem_subject_scheme":"Other"}]},"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":"Stretching out the Australasian microtektite strewn field in Victoria Land Transantarctic Mountains","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Stretching out the Australasian microtektite strewn field in Victoria Land Transantarctic Mountains"},{"subitem_title":"Stretching out the Australasian microtektite strewn field in Victoria Land Transantarctic Mountains","subitem_title_language":"en"}]},"item_type_id":"10001","owner":"36","path":["1672"],"pubdate":{"attribute_name":"公開日","attribute_value":"2016-05-31"},"publish_date":"2016-05-31","publish_status":"0","recid":"12706","relation_version_is_last":true,"title":["Stretching out the Australasian microtektite strewn field in Victoria Land Transantarctic Mountains"],"weko_creator_id":"36","weko_shared_id":-1},"updated":"2023-07-25T16:04:10.781274+00:00"}