WEKO3
アイテム
{"_buckets": {"deposit": "bfc67bd8-c8e6-443b-a221-5d02779ec613"}, "_deposit": {"created_by": 26, "id": "15979", "owners": [26], "pid": {"revision_id": 0, "type": "depid", "value": "15979"}, "status": "published"}, "_oai": {"id": "oai:nipr.repo.nii.ac.jp:00015979", "sets": ["2012"]}, "author_link": ["70138", "70139", "70137"], "item_10001_biblio_info_7": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2020", "bibliographicIssueDateType": "Issued"}, "bibliographicPageStart": "100505", "bibliographicVolumeNumber": "23", "bibliographic_titles": [{}, {"bibliographic_title": "Polar Science", "bibliographic_titleLang": "en"}]}]}, "item_10001_description_5": {"attribute_name": "抄録", "attribute_value_mlt": [{"subitem_description": "More than 100 volcanoes have been discovered in Antarctica, however, the sources of many Antarctic tephras are not yet constrained. In this study, four tephra samples recovered from the environment of Site 27 on an area of blue ice at Allan Hills, South Victoria Land, provide information on magma and crustal sources for the tephra erupted in Antarctica. We report data on the chemistry of Antarctic tephra glasses and minerals analysed by electron microscopy, electron probe microanalysis and laser ablation inductively coupled plasma mass spectrometry. The tephra amphibole chemistry indicates magma residence at ~1 GPa and ~1100 °C. Abundant Ca–Al–Si-rich minerals imply that the magma ascended from a reservoir at 29.4 ± 2.7 km depth was affected by the assimilation of calc-silicate crust. The high Fe and Ti contents in the magmatic minerals and the trace element patterns of the glasses typical of a hydrothermally altered oceanic crust suggest that the Allan Hills tephra originated from a mantle plume-derived magma. The fragmented morphology of the glasses implies that the magmatic activity was associated with explosive eruptions during the mid-Pleistocene. The chemistry of the glasses and the presence of rhönite and Al-rich spinel minerals suggest that the magma might be genetically related to the currently active McMurdo volcanic group.", "subitem_description_type": "Abstract"}]}, "item_10001_relation_14": {"attribute_name": "DOI", "attribute_value_mlt": [{"subitem_relation_name": [{"subitem_relation_name_text": "10.1016/j.polar.2020.100505"}], "subitem_relation_type_id": {"subitem_relation_type_id_text": "https://doi.org/10.1016/j.polar.2020.100505", "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": "Borisova, Anastassia Y.", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "70137", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Jochum, Klaus Peter", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "70138", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Gouy, Sophie", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "70139", "nameIdentifierScheme": "WEKO"}]}]}, "item_keyword": {"attribute_name": "キーワード", "attribute_value_mlt": [{"subitem_subject": "Volcanic tephra", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}, {"subitem_subject": "Antarctica", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}, {"subitem_subject": "Allan Hills", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}, {"subitem_subject": "Mantle plume", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}, {"subitem_subject": "Pleistocene", "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": "Mineralogical and geochemical features of the Allan Hills tephra, South Victoria Land: Implications for mid-Pleistocene volcanic activity in Antarctica", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "Mineralogical and geochemical features of the Allan Hills tephra, South Victoria Land: Implications for mid-Pleistocene volcanic activity in Antarctica"}, {"subitem_title": "Mineralogical and geochemical features of the Allan Hills tephra, South Victoria Land: Implications for mid-Pleistocene volcanic activity in Antarctica", "subitem_title_language": "en"}]}, "item_type_id": "10001", "owner": "26", "path": ["2012"], "permalink_uri": "https://nipr.repo.nii.ac.jp/records/15979", "pubdate": {"attribute_name": "公開日", "attribute_value": "2020-03-11"}, "publish_date": "2020-03-11", "publish_status": "0", "recid": "15979", "relation": {}, "relation_version_is_last": true, "title": ["Mineralogical and geochemical features of the Allan Hills tephra, South Victoria Land: Implications for mid-Pleistocene volcanic activity in Antarctica"], "weko_shared_id": -1}
Mineralogical and geochemical features of the Allan Hills tephra, South Victoria Land: Implications for mid-Pleistocene volcanic activity in Antarctica
https://nipr.repo.nii.ac.jp/records/15979
https://nipr.repo.nii.ac.jp/records/159797dcec305-1afc-4b54-a260-84f4ec0c280f
Item type | 学術雑誌論文 / Journal Article(1) | |||||
---|---|---|---|---|---|---|
公開日 | 2020-03-11 | |||||
タイトル | ||||||
タイトル | Mineralogical and geochemical features of the Allan Hills tephra, South Victoria Land: Implications for mid-Pleistocene volcanic activity in Antarctica | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Mineralogical and geochemical features of the Allan Hills tephra, South Victoria Land: Implications for mid-Pleistocene volcanic activity in Antarctica | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Volcanic tephra | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Antarctica | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Allan Hills | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Mantle plume | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Pleistocene | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
Borisova, Anastassia Y.
× Borisova, Anastassia Y.× Jochum, Klaus Peter× Gouy, Sophie |
|||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | More than 100 volcanoes have been discovered in Antarctica, however, the sources of many Antarctic tephras are not yet constrained. In this study, four tephra samples recovered from the environment of Site 27 on an area of blue ice at Allan Hills, South Victoria Land, provide information on magma and crustal sources for the tephra erupted in Antarctica. We report data on the chemistry of Antarctic tephra glasses and minerals analysed by electron microscopy, electron probe microanalysis and laser ablation inductively coupled plasma mass spectrometry. The tephra amphibole chemistry indicates magma residence at ~1 GPa and ~1100 °C. Abundant Ca–Al–Si-rich minerals imply that the magma ascended from a reservoir at 29.4 ± 2.7 km depth was affected by the assimilation of calc-silicate crust. The high Fe and Ti contents in the magmatic minerals and the trace element patterns of the glasses typical of a hydrothermally altered oceanic crust suggest that the Allan Hills tephra originated from a mantle plume-derived magma. The fragmented morphology of the glasses implies that the magmatic activity was associated with explosive eruptions during the mid-Pleistocene. The chemistry of the glasses and the presence of rhönite and Al-rich spinel minerals suggest that the magma might be genetically related to the currently active McMurdo volcanic group. | |||||
書誌情報 |
en : Polar Science 巻 23, p. 100505, 発行日 2020 |
|||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 18739652 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1016/j.polar.2020.100505 | |||||
関連名称 | 10.1016/j.polar.2020.100505 |