Major Element Chemistry of Metamorphic Rocks of the Cape Hinode District, East Antarctica
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概要
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Metamorphic rocks of the Cape Hinode district have the mineral assemblages of the amphibolite facies and have the chemical composition poor in K_2O even in SiO_2-rich rocks. They show lower K_2O/Na_2O and higher Fe_2O_3/FeO ratios than those of the Lutzow-Holmbukta region. The fluorine content in metabasites of the Cape Hinode and Lutzow-Holmbukta districts shows positive correlation with K_2O, and the F/K_2O ratio is slightly higher than that of the continental basalt series. The amount of fluorine decreases with increasing SiO_2 content in most of rock types.
- 国立極地研究所の論文
著者
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Yanai Keizo
National Institute of Polar Research
-
Kanisawa Satoshi
Department Of Earth Sciences College Of General Education Tohoku University
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Ishikawa Ken'ichi
Institute Of Petrology Mineraloy And Economic Geology Faculty Of Science Tohoku University
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