Problems on Superimposition of Diagenesis and Hydrothermal Alteration

概要

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In Japan, a fairly large part of the sediments which had been altered diagenetically was superposed by various kinds of hydrothermal alterations. Practically it is rather difficult to discriminate the hydrothermal alterations of alkaline solutions from the diagenetic ones, because of production of same authigenic minerals. For the purpose of discrimination of both alterations, the writers characterized the mineralogical properties, mineral assemblage, relation to the original rocks, authigenic minerals, series of alteration, and type and morphology of zoning. The last is the most discrimitive and practical.
日本堆積学会の論文