Memoirs of the Faculty of Literature and Science, Shimane University. Natural sciences

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Memoirs of the Faculty of Literature and Science, Shimane University. Natural sciences 5
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
Kitahara, Jun-ichi
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Description
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.