구례-순천간에 분포하는 화강암질편마암의 암석화학적 연구

• 발행기관: 대한자원환경지질학회
• 저자명: 조규성
• 간행물 정보: 『자원환경지질』33권 3호, 173~180쪽, 전체 8쪽
• 주제분류: 자연과학 > 지질학
• 파일형태: PDF
• 발행일자: 2000.06.30

영문 초록

Main aims of this study are to clarify petrochemistry of the granitic gneiss in the Durye-Suncheon area. The origin of the metamorphic rock is evaluated from the abundance of Na₂O, the TiO₂/Al₂O₃ ratios, the Harker variation diagram and Al₂O₃(Na2 +K2O + CaO) ratios of the major elements. and the frequency distribution and average abundance of the trace elements . The trace elements of the granitic gneiss in the studied area are compared with those of the granitic rocks with shales in the other areas. The abundance of Na2O is lower than 3.27% and the TiO2/Al2O3 ratio is 0.04. Also the Harker s variation diagram indicate this granitic gneiss correspond to sedimentary origin or S-type granite. The average abundance for trace elements of the granitic gneiss is similar to that of the shale, and the frequency distribution shows extensive distribution and irregularly . But xenolith are observed in the field survey, it is evidence of igneous origin , and then origin of the granitic gneiss in studied area is S-type granite.

키워드

구례 순천 화강암질편마암 암석화학 퇴적암류 화산암류 석영반암 미량원소 빈도분포