The Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists
Online ISSN : 1883-0765
Print ISSN : 0021-4825
ISSN-L : 0021-4825
Mineral parageneses of glaucophanitic metamorphism
Specially on Franciscan and Sanbagawa metamorphic rocks
Hitoshi Onuki
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1966 Volume 56 Issue 2 Pages 78-92

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Abstract
Mineral parageneses of glaucophanitic metamorphism are discussed from available data of the Sanbagawa and Franciscan metamorphic terranes. Firstly, the glaucophane schist facies is divided into the following subfacies including two subfacies proposed by Miyashiro and Seki (1958); pumpellyite-glaucophane, pumpellyite-lawsonite-glaucophane, pumpellyite-epidote-glaucophane, pumpellyite-lawsonite-epidote-glaucophane, lawsonite-glaucophane and epidote-glaucophane subfacies. Secondly, it is suggested that these subfacies are subdivided into high pressure and low pressure types by means of such stability relation as albite= jadeite + quartz or calcite= aragonite. Then, some considerations are noted on mineral facies of higher-grade than the glaucophane schist facies and their significances in glaucophanitic metamorphism.
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© Japan Association of Mineralogical Sciences
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