PETROGENESIS OF THE META-TRONDHJEMITES FROM CAPE HINODE, EAST ANTARCTICA
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概要
- 論文の詳細を見る
Meta-trondhjemites (ca. 1000 Ma) from Cape Hinode, Lutzow-Holm Complex (LHC), East Antarctica are characterized by relatively high Al (Al_2O_3>15% at 70% SiO_2) and Sr, and low Y and Yb contents, which are chemically similar to Archaean trondhjemites and adakites. Trace element modelings of the partial melting of MORB suggest that igneous protoliths of the meta-trondhjemites were derived by partial melting of a basaltic source material under garnet stability P-T conditions. We suggest that a young hot subducting plate along LHC at 1000 Ma may have reached elevated temperatures which initiated melting of the slab.
- 国立極地研究所の論文
著者
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Shiraishi Kazuyuki
National Institute of Polar Research
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Ikeda Y
Hokkaido University Of Education At Kushiro
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Yanai Keizo
Faculty Of Engineering Iwate University
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IKEDA Yasuo
Hokkaido University of Education at Kushiro
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Yanai Keizo
Faculty Of Technology Iwate University
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