火成岩中の流体包有物と鉱化作用
とくに成羽川地域の酸性火成岩類について
1979 年 95 巻 1091 号 p. 1-5
詳細
1979 年 95 巻 1091 号 p. 1-5
Fluid inclusions in the granitic intrusives occurring in Nariwa-gawa district have been observed. Based on the relationship between fluid inclusions and mineralization; the intrusive stocks are divided into five types.(i) The stock with polyphase inclusions and related with mineralization (P-M type): MG. KY. AT. KS. TN, OS, YK.(ii) Thectnrk with nnlvphace incliicinns but not related with mineralization (P-U type): KB, SD, UD.(iii) The stock with liquid inclusions and relatea with minerah. zation (L-M type): HK.(iv) The stock with liquid inclusions but not related with mineralization (L. U type): OK, YN, SS (v) The stock without fluid inclusion and not related with mineralization (N-U type): NR.The resnlt indicafes that the mineralization is generally found near the stocks containing polyphase inclusions, and that the mineralization is not found generally in the vicinity of the stock with only liquid inclusions or without fluid inclusions, although a few exceptional cases are found.
