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オフリッジ火山から高速拡大海嶺のモホ遷移帯マグマプロセスを探る
https://doi.org/10.24517/00052363
https://doi.org/10.24517/00052363c6dac26c-be25-4790-89d4-d50025c65e5b
名前 / ファイル | ライセンス | アクション |
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SC-PR-UMINO-S-kaken 2014-6p.pdf (660.4 kB)
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Item type | 報告書 / Research Paper(1) | |||||
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公開日 | 2018-10-04 | |||||
タイトル | ||||||
タイトル | オフリッジ火山から高速拡大海嶺のモホ遷移帯マグマプロセスを探る | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Magma processes in the Moho Transition Zone: an insight from volcanoes off the first-spreading ridges | |||||
言語 | ||||||
言語 | jpn | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_18ws | |||||
資源タイプ | research report | |||||
ID登録 | ||||||
ID登録 | 10.24517/00052363 | |||||
ID登録タイプ | JaLC | |||||
著者 |
海野, 進
× 海野, 進 |
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著者別表示 |
Umino, Susumu
× Umino, Susumu |
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書誌情報 |
平成25(2013)年度 科学研究費補助金 基盤研究(B) 研究成果報告書 en : 2013 Fiscal Year Final Research Report 巻 2010-04-01 - 2014-03-31, p. 6p., 発行日 2014-06-02 |
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出版者 | ||||||
出版者 | 金沢大学理工研究域地球社会基盤学系 | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | オマーンオフィオライト及び深海掘削サイト1256の最上部を構成するオフリッジ巨大溶岩の岩相,全岩化学組成,鉱物組成および組織を解析し,巨大溶岩流の定置過程とマグマの成因について考察した。巨大溶岩流は低噴出率の噴火によって水底パホイホイ溶岩からなる複合溶岩流として流下し,ローブの融合が進んだ高温の溶岩体中心部では,後から噴出した溶岩が未固結の中心部に貫入し,内成的に溶岩流が成長する。噴火中にマグマ組成が変化し,マグマ混合が起きている。大洋島玄武岩とエンリッチした中央海嶺玄武岩(EMORB)の中間的なアルカリ玄武岩を伴い,オフリッジ巨大溶岩流が比較的浅いマントルで発生したことを示唆する。 | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Off-ridge large lava flows in the Oman Ophiolite and in ODP site 1256 were investigated to understand the emplacement process and the magma genesis by analyzing the bulk-rock and mineral compositions and textures. Both lava flows were extruded at low extrusion rates as compound flow lobes, which were merged into thick large lobes. Merged flow lobes thicken endogenously as subsequent lava was injected into the molten core of the lobes. Magma compositions changed during the eruptions, resulted in mixing of magmas. Associated alkali basalts showing intermediated characteristics between ocean island basalts and enriched mid-ocean ridge basalts indicate that the sources for the large lava flows are shallower than ocean island basalt magmas. | |||||
内容記述 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 研究課題/領域番号:22403004, 研究期間(年度):2010-04-01 - 2014-03-31 | |||||
内容記述 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 出典:研究課題「オフリッジ火山から高速拡大海嶺のモホ遷移帯マグマプロセスを探る」課題番号22403004 (KAKEN:科学研究費助成事業データベース(国立情報学研究所)) (https://kaken.nii.ac.jp/report/KAKENHI-PROJECT-22403004/22403004seika/)を加工して作成 |
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著者版フラグ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
関連URI | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://kaken.nii.ac.jp/search/?qm=30192511 | |||||
関連名称 | https://kaken.nii.ac.jp/search/?qm=30192511 | |||||
関連URI | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22403004/ | |||||
関連名称 | https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22403004/ | |||||
関連URI | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://kaken.nii.ac.jp/report/KAKENHI-PROJECT-22403004/22403004seika/ | |||||
関連名称 | https://kaken.nii.ac.jp/report/KAKENHI-PROJECT-22403004/22403004seika/ |