坡州 酸性火成岩體의 岩石學的 硏究

• 영문명: Petrology and petrochemistry of Pajoo acidic igneous pluton
• 발행기관: 대한자원환경지질학회
• 저자명: Mihn Soo Oh(吳敏秀)
• 간행물 정보: 『자원환경지질』11권 1호, 1~15쪽, 전체 15쪽
• 주제분류: 자연과학 > 지질학
• 파일형태: PDF
• 발행일자: 1978.03.30

영문 초록

The study is on petrology and petrochemistry of Pajoo Acidic Igneous pluton which intruded into Pre-cambrian metasediments of basement of the area. The geologic sequence of studied area was shown in table 1 and 10 modal analyses and 7 chemical analyses on the rock samples taken from the body. Pajoo Acidic Igneous rock consist of hypersthene-quartz-diorite and porphyritic adamellite which based on the classification of the subcommision on systematics of igneous rocks of IUGS. And porphyritic adamellite which occured as a small stock was intruded into hypersthene quartz diorite. The rock forming minerals of hypersthene quartz diorite are composed of plagioclase, perthite, quartz, hypersthene, hornblende, biotite and porphyritic adamellite is composed of perthite, quartz, plagioclase and biotite. And the former is hypidiomorphic granular texture and later is porphyritic texture with microcline phenocrysts. In silica-oxides variation diagram, the Pajoo acidic igneous rocks are similar to the trend of Daly’s average composition and equivalent to the calc-alkalic rock series. In AMF diagram, these rocks are stock of fissure filling vein type by cooling in magmatic differentiation.

목차

Abstract

1. 序言

2. 位置 및 交通

3. 地質

4. 化學成分

5. 結言

References