宇久ロウ石鉱床に産するPyrophylliteとKaoliniteの結晶表面マイクロトポグラフ

概要

論文の詳細を見る
The Au-decoration technique of electron microscopy was applied to the crystal surfaces of pyrophyllite and kaolinite collected from the Uku pyrophyllite deposit in Abu-Susa district, Yamaguchi Prefecture. The specimens composed of pyrophyllite and kaolinite exclusively exhibited malformed step growth patterns and polygonal spiral growth patterns. Sawtooth step patterns, which are formed by dissolution, were also observed. The crystals with malformed layer by layer step growth patterns are corresponded to pyrophyllite, they with polygonal spiral growth pattern and/or saw-tooth step patterns are indicated kaolinite crystals. It is considered from these observation that kaolinite was formed before pyrophyllite grew under the hydrothermal alteration.
日本粘土学会の論文
2002-08-24