三光 金 鑛床의 鑛化 溫度 및 根源에 關한 硏究

• 영문명: Study on the temperature and the origin of mineralization at the Samkwang Au deposits
• 발행기관: 대한자원환경지질학회
• 저자명: Kun Joo Moon(文建柱)
• 간행물 정보: 『자원환경지질』19권 1호, 19~24쪽, 전체 6쪽
• 주제분류: 자연과학 > 지질학
• 파일형태: PDF
• 발행일자: 1986.02.28

영문 초록

The Samkwang mine is one of gold deposits distributed mainly in the southwestern province (Chungnam) of the Korean peninsula. Golds occur in quartz veins aged of 223±4 MA according to K-Ar age dating from muscovite in a pegmatitic quartz vein. Quantz veins intrude Precambrian biotite-granite gneiss and mica schist of unknown age. Fluid inclusions in the quartz show a range of homogenization temperatures from 159 to 274℃. A calculated temperature from the isotopes of the galena-sphalerite pair is 375℃. Two phases-fluid inclusions homogenized either by liquid or vapor phase are frequently observed in specimens over 260℃, which may indicate the boiling of the fluids. Pressure of formation of the quartz veins inferred by the homogenization temperatures of liquid-CO₂ bearing fluid is 1kb. Based on these data, it is assumed that the temperature of the formation of the Samkwang mine may lie in between 350°-230℃. δ³⁴S∑s values of sulphide minerals show narrow range of +2.1 to +4.6, and show a trend of enrichments of δ³⁴S in the fluid from deep to the surface. δ³⁴S∑s in the fluid estimated is less than 3 permil, suggesting sulphur fluid originated from the magma.

목차

Abstract

序言

地質 鑛床 槪要

金의 産狀

石英脈의 生成時期

流體包有物

黃安定同位立元素

結言

參考文獻