阿武隈山地,コートランド岩類の2.3の造岩鉱物
1968 年 59 巻 4 号 p. 152-156
詳細
1968 年 59 巻 4 号 p. 152-156
Three clinopyroxenes, an orthopyroxene and a hornblende from the cortlandtite and associated mela-gabbros in the Abukuma plateau are chemically analysed. Fe+2-Mg partition coefficient between co-existing pyroxenes of the cortlandtite may be supposed to indicate lower temperature range of igneous crystallization.
