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島根大学文理学部紀要. 理学科編 5 巻
1972-03-10 発行
島根・鳥取・岡山・広島県境地域の超塩基性岩に随伴する鉱物(VIII) : 鳥取県広瀬鉱山産カルシウムモンモリオナイト
On Minerals Associated with Ultrabasic Rocks, Found in the Vicinity of Commom Boundaries of Shimane, Tottori, Okayama, and Hiroshima Prefectures(VIII) : Ca-montmorillonite from the Hirose Mine, Tottori Prefecture
北原 順一
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A Ca-montmorillonite has been altered from pyroxenite. The Ca-montmorillonite described in the paper is associated with a smal amount of diopside. X-ray, differential thermal and chemical data of the Ca-montmorillonite are presented. A part of Ca occupies octahedral site replacing Mg^<+2>, and the exchangeable capacity of Ca presented in inter-layer is lrage.
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