남한의 주요 금속광상산 석영내의 유체포유물의 가스성분과 용존성분의 화학조성

• 발행기관: 대한자원환경지질학회
• 저자명: 김규한 정해란
• 간행물 정보: 『자원환경지질』32권 5호, 421~434쪽, 전체 14쪽
• 주제분류: 자연과학 > 지질학
• 파일형태: PDF
• 발행일자: 1999.10.30

영문 초록

Gas and chemical compositions of fluid inclusions in quartz some of Au-Ag, Pb-Zn-Cu and W-Mo mineral deposits in South Kores were analyzed to interpret the sources of ore fluid and the depositional condition of ore minerals in base-metal ore deposits. Fluid inclusions in quartz from the gold and silver mines are characterized by CO2 rich fluids which have a wide range in CH4 and CO2 contents (CH4/CO2=0.001-0.225). The CO2 rich but CH4-poor nature of the fluid reflects the high fo2 condition during the mineral precipitation. The C2H6 is detected in hydrothermal quartz vines in metasedimentary rocks from the Jeonjoo-il, Youngbokari and Taechang mines. The CH4/CO2 rations in W-Mo bearing quartz veins range from 0.005 to 0.214, which is similar with those in Au-Ag mines. However, skarn formation stage. Fluid inclusions, A relatively good correlation between Na and Cl contentrations reflects varible salinity in the fluid inclusion, it is suggested that the chemistry of promary magmatic hydrothermal fluids has changed during post-magmatic alteration and/or wall rock alteration processes. The content of gas compositions also depends on the kinds of country rocks, supporting above conclusion.

목차

금속광상;스카른형;광맥형;유체포유물;용존성분;화학조성