1993•Journal of the Mineralogical Society of JapanOpen access
Weathering and Hydrothermal Alteration of Mica Minerals.
Yoshihiro Kuwahara
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Abstract
The alteration of trioctahedral micas (biotite, phlogopite, etc.) have been the subject of many studies on weathering and hydrothermal alteration, because they are common rock-forming minerals and act as an important source of soluble K in soil. In this paper, the dissolution process of micas and the formation mechanism of alteration products such as vermiculite, chlorite and kaolinite in the alteration process of micas are reviewed briefly.