Department of Earth Sciences, College of General Education, Tohoku University
National Institute of Polar Research
Institute of Petrology, Mineraloy and Economic Geology, Faculty of Science, Tohoku University
抄録(英)
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.
雑誌書誌ID
AA00733561
雑誌名
Memoirs of National Institute of Polar Research. Special issue
Major Element Chemistry of Metamorphic Rocks of the Cape Hinode District, East Antarctica
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KJ00000011574
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概要
