Mineralogy and Petrography of the Shallow - depth Emplaced Granitic Rocks Distributed in the Southern Part of the Kyeongsang Basin , Korea
(주)코리아스칼라
- 최초 등록일
- 2023.04.05
- 최종 저작일
- 1992.06
- 24페이지/ 어도비 PDF
- 가격 6,100원
* 본 문서는 배포용으로 복사 및 편집이 불가합니다.
서지정보
ㆍ발행기관 : 한국지구과학회
ㆍ수록지정보 : 한국지구과학회지 / 13권 / 2호
ㆍ저자명 : Jong Ik Lee
영어 초록
The granitic rocks in the southern part of the Kyeongsang basin, Korea, are divided into seven masses based on the petrographical features. They are generally characterized by shallow-depth intrusions. The chemical compositions of amphibole and biotite from the granitic rocks show systematic variations in Fe/(Fe+Mg) ratios as well as Mn and F contents. Hornblende geobarometer indicates low pressure condition (less than 2.3 kbar) at the time of final crystallization of hornblende crystals. The composition of biotite indicates that oxygen fugacity has been almost buffered during crystallization regardless of rock types. The oxygen fugacity is presumably close to the value of Ni-NiO buffer. From the Fe-Ti oxide geothermometry, it seems likely that most of the Fe-Ti oxides have been re-equilibrated during cooling and have suffered oxidation under subsolidus condition.
참고 자료
없음
"한국지구과학회지"의 다른 논문
더보기 (4/9)