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Riiser-Larsen area of the Napier Complex, East Antarctica, is underlain by various kinds of ultrahigh-temperature (UHT) metamorphic rocks such as orthopyroxene felsic gneiss, garnet felsic gneiss, garnet-sillimanite gneiss, mafic gneiss and meta-ultramafic rocks. On the basis of the mode of occurrence and petrography, the garnet felsic gneisses are further divided into garnet felsic gneiss I (garnet-poor type) and II (garnet-rich type), the mafic gneisses into quartz-free and -bearing types, and the metaultramafic rocks into phlogopite-free and -bearing types. Bulk rock chemical analyses for the major, minor and rare earth elements (REEs) demonstrate that (1) both the garnetsillimanite gneiss and garnet felsic gneiss II are of sedimentary origin such as mudstone and sandstone, respectively, and (2) other rocks are of igneous origin, as follows: i) the orthopyroxene felsic gneiss and garnet felsic gneiss I are chemically comparable with CIPW normative tonalite to granodiorite and granite, respectively, of which the former also exhibits a calc-alkaline compositional variation with a REE signature comparable to the Archaean TTG (tonalite-trondhjemite-granodiorite); ii) the quartz-free and quartz-bearing mafic gneisses have been derived from flat or slightly LREE-depleted and LREE-enriched tholeiitic basalts, respectively; iii) phlogopite-free and phlogopite-bearing meta-ultramafic rocks have been derived from depleted mantle peridotites and komatiitic rocks, respectively, of which the latter shows a magmatic compositional variation controlled by addition or subtraction of only olivine. 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Riiser-Larsen", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}, {"subitem_subject": "Napier Complex", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}, {"subitem_subject": "original rocks", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}, {"subitem_subject": "ultrahigh-temperature metamorphic rocks", "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": "departmental bulletin paper", "resourceuri": "http://purl.org/coar/resource_type/c_6501"}]}, "item_title": "Geochemical study of granulites from Mt. Riiser-Larsen, Enderby Land, East Antarctica: Implication for protoliths of the Archaean Napier Complex", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "Geochemical study of granulites from Mt. Riiser-Larsen, Enderby Land, East Antarctica: Implication for protoliths of the Archaean Napier Complex"}]}, "item_type_id": "1", "owner": "4", "path": ["437"], "permalink_uri": "https://doi.org/10.15094/00003045", "pubdate": {"attribute_name": "公開日", "attribute_value": "1999-10-01"}, "publish_date": "1999-10-01", "publish_status": "0", "recid": "3045", "relation": {}, "relation_version_is_last": true, "title": ["Geochemical study of granulites from Mt. Riiser-Larsen, Enderby Land, East Antarctica: Implication for protoliths of the Archaean Napier Complex"], "weko_shared_id": 4}
Geochemical study of granulites from Mt. Riiser-Larsen, Enderby Land, East Antarctica: Implication for protoliths of the Archaean Napier Complex
https://doi.org/10.15094/00003045
https://doi.org/10.15094/00003045d8740a07-e3b3-4050-8c49-d40f7a126c20
名前 / ファイル | ライセンス | アクション |
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KJ00000044162 (4.5 MB)
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Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||
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公開日 | 1999-10-01 | |||||
タイトル | ||||||
タイトル | Geochemical study of granulites from Mt. Riiser-Larsen, Enderby Land, East Antarctica: Implication for protoliths of the Archaean Napier Complex | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | bulk rock chemistries | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Mt. Riiser-Larsen | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Napier Complex | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | original rocks | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | ultrahigh-temperature metamorphic rocks | |||||
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 | departmental bulletin paper | |||||
ID登録 | ||||||
ID登録 | 10.15094/00003045 | |||||
ID登録タイプ | JaLC | |||||
ページ属性 | ||||||
内容記述タイプ | Other | |||||
内容記述 | P(論文) | |||||
著者名(英) |
Suzuki, Satoko
× Suzuki, Satoko× Hokada, Tomokazu× Ishikawa, Masahiro× Ishizuka, Hideo |
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著者所属(英) | ||||||
en | ||||||
Department of Polar Science, School of Mathematical and Physical Sciences, The Graduate University for Advanced Studies | ||||||
著者所属(英) | ||||||
en | ||||||
Department of Polar Science, School of Mathematical and Physical Sciences, The Graduate University for Advanced Studies | ||||||
著者所属(英) | ||||||
en | ||||||
Geological Institute, Yokohama National University | ||||||
著者所属(英) | ||||||
en | ||||||
Department of Geology, Kochi University | ||||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | The Mt. Riiser-Larsen area of the Napier Complex, East Antarctica, is underlain by various kinds of ultrahigh-temperature (UHT) metamorphic rocks such as orthopyroxene felsic gneiss, garnet felsic gneiss, garnet-sillimanite gneiss, mafic gneiss and meta-ultramafic rocks. On the basis of the mode of occurrence and petrography, the garnet felsic gneisses are further divided into garnet felsic gneiss I (garnet-poor type) and II (garnet-rich type), the mafic gneisses into quartz-free and -bearing types, and the metaultramafic rocks into phlogopite-free and -bearing types. Bulk rock chemical analyses for the major, minor and rare earth elements (REEs) demonstrate that (1) both the garnetsillimanite gneiss and garnet felsic gneiss II are of sedimentary origin such as mudstone and sandstone, respectively, and (2) other rocks are of igneous origin, as follows: i) the orthopyroxene felsic gneiss and garnet felsic gneiss I are chemically comparable with CIPW normative tonalite to granodiorite and granite, respectively, of which the former also exhibits a calc-alkaline compositional variation with a REE signature comparable to the Archaean TTG (tonalite-trondhjemite-granodiorite); ii) the quartz-free and quartz-bearing mafic gneisses have been derived from flat or slightly LREE-depleted and LREE-enriched tholeiitic basalts, respectively; iii) phlogopite-free and phlogopite-bearing meta-ultramafic rocks have been derived from depleted mantle peridotites and komatiitic rocks, respectively, of which the latter shows a magmatic compositional variation controlled by addition or subtraction of only olivine. These chemical features reveal that the various kinds of original rocks are intermingled in the Riiser-Larsen area, which is important for understanding the site of development of original rocks in the Napier Complex. | |||||
雑誌書誌ID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA1130866X | |||||
書誌情報 |
Polar geoscience 巻 12, p. 101-125, 発行日 1999-10 |
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出版者 | ||||||
出版者 | National Institute of Polar Research |