AN INTERSTRATIFIED MINERAL FOUND IN ALTERED ANDESITE

KATSUTOSHI TOMITA; HIROYUKI YAMASHITA; NOBORU OBA

doi:10.2465/ganko1941.61.25

The Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists

Online ISSN : 1883-0765
Print ISSN : 0021-4825
ISSN-L : 0021-4825

AN INTERSTRATIFIED MINERAL FOUND IN ALTERED ANDESITE

KATSUTOSHI TOMITA, HIROYUKI YAMASHITA, NOBORU OBA

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1969 Volume 61 Issue 1 Pages 25-34

DOI https://doi.org/10.2465/ganko1941.61.25

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Abstract

An interstratified mineral was found in the hydrothermally altered andesite in the southern part of the Satsuma Peninsula, Kagoshima Prefecture. The mineral having 26.8_??_ spacing consists of a combination of the 10_??_ mica clay mineral structure and its hydrous forms. The interstratified mineral was formed by degrading process of sericite.

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