Item type |
紀要論文(ELS) / Departmental Bulletin Paper(1) |
公開日 |
2003-10-01 |
タイトル |
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タイトル |
Geology of eastern Muhlig -Hofmannfjella and Filchnerfjella in Dronning Maud Land, East Antarctica; A preliminary report of a Japan-Norway-Germany joint geological investigation |
言語 |
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言語 |
eng |
キーワード |
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主題Scheme |
Other |
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主題 |
central Dronning Maud Land |
キーワード |
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主題Scheme |
Other |
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主題 |
geology of Filchnerfjella |
キーワード |
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主題Scheme |
Other |
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主題 |
two-stage meta-morphism |
キーワード |
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主題Scheme |
Other |
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主題 |
Pan-African magmatism |
キーワード |
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主題Scheme |
Other |
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主題 |
Gondwana break-up |
資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
departmental bulletin paper |
ID登録 |
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ID登録 |
10.15094/00003125 |
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ID登録タイプ |
JaLC |
ページ属性 |
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内容記述タイプ |
Other |
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内容記述 |
P(論文) |
著者名(英) |
Owada, Masaaki
Baba, Sotaro
Laufer, Andreas L.
Elvevold, Synnoeve
Shiraishi, Kazuyuki
Jacobs, Joachim
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著者所属(英) |
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en |
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Department of Earth Sciences, Yamaguchi University/Department of Natural Environment, University of the Ryukyus/Geologisch-Palaontologisches Institut, Johann Wolfgang Goethe-Universitat/Norwegian Polar Institute/National Institute of Polar Research/Universitat Bremen |
抄録(英) |
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内容記述タイプ |
Other |
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内容記述 |
The geological history of Filchnerfjella and surrounding areas (2゜E to 8゜E) in central Dronning Maud Land,East Antarctica,is constructed from metamorphic and igneous petrology,and structural investigations.The geology of Filchner-fjella consists mainly of metamorphic rocks accompanied by intrusive rocks.Two stages of metamorphism can be recognized in this area.The earlier stage metamorphism is defined as a porphyroblast stage (garnet,hornblende,and sillimanite stable), and the later one is recognized as a symplectic stage (orthopyroxene and cordieritestable).Taking metamorphic textures and geothermobarometries into account,the rocks experienced an early high-P/medium-T followed by a low-P and high-T stage. Partial melting took place during the low-P/high-T stage,because probable melt of leucocratic gneiss contains cordierite.The field relationships and petrography of the syenite at Filchnerfjella are similar to those of post-tectonic plutons from central Dronning Maud Land,and most of the post-tectonic intrusive rocks have within-plate geochemical features.The structural history in Filchnerfjella and surrounding areas can be divided into the Pan-African stage and the Meso to Cenozoic stage that relates to the break-up of Gondwana. |
雑誌書誌ID |
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収録物識別子タイプ |
NCID |
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収録物識別子 |
AA1130866X |
書誌情報 |
Polar geoscience
巻 16,
p. 108-136,
発行日 2003-10
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出版者 |
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出版者 |
National Institute of Polar Research |