高知県白滝鉱山付近の地質構造

The Shirataki mining district is a part of the Besshi-Shirataki region, a zone of spotted schists (crystalline schists with albite porphyroblasts) in the Sambagawa metamorphic zone. In the present paper, stratigraphy, petrographical characteristics, and geological structure of crystalline schist system in the district are described. In this connection, the location of cupriferous pyritic deposits (Kieslager) is noticed.