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Structural state (Al/Si order-disorder) determination has been made with an X-ray diffractometry on some alkali-feldspars and plagioclases in the Cretaceous granitic rocks of the northern Kitakami mou...ntains. The feldspar minerals were divided into three groups from the relations between Al/Si order-disorder and Or content of alkali-feldspars, and the Al/Si order-disorder relations between coexisting alkali-feldspars and plagioclases. The results suggest that at least three types of granitic masses exist in this province.続きを見る
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Mendeley出力
