無極鑛山 三兄弟脈의 金銀鑛化作用

• 영문명: Gold and Silver Mineralization of Samhyungje Vein, the Mugeug Mine
• 발행기관: 대한자원환경지질학회
• 저자명: Hee In Park(朴喜寅) Seong Jun Kang(姜聖俊)
• 간행물 정보: 『자원환경지질』21권 3호, 257~270쪽, 전체 14쪽
• 주제분류: 자연과학 > 지질학
• 파일형태: PDF
• 발행일자: 1988.06.30

영문 초록

The Mugeug gold deposits is consisted of more than fourteen gold and silver-bearing quartz veins emplaced in Mesozoic granodiorite mass. In the Samhyungje vein, one of the representative vein in the mine, six stages of mineralizatidns are recognized: Stage I, deposition of base-metal sulfides and gray quartz; stage II, deposition of base-metal sulfides, electrum and white quartz with pinkish tint; stage m, deposition of base-metal sulfides and dark gray quartz; stage N, deposition of native silver, argentite, Ag-tetrahedrite, polybasite, arsenpolybasite and quartz; stage V, deposition of nearly barren quartz; stage VI, deposition of transparent quartz veinlets with minor pyrite. Ag contents of electrum increase steadily from stage II to stage N; 57.25-61.44 atom. % for stage II, 62.85-69.66 atom. % for stage m, 69.79-74.12 atom. % for stage N. Homogenization temperatures of fluid inclusions are as follows; stage II, from 194° to 287℃; stage V, from 137° to 171℃, stage VI, from 192° to 232℃. Salinities of fluid inclusions range from 3.7 to 7.9 wt.% equivalent NaCl in stage II and from 0.8 to 4.3 wt.% equivalent Nael in stage V. Ore mineralogy suggest that temperature and sulfur fugacity declined steadily from 290° to 150℃ and from 10-10.5 to 10-19.0atm. through stage II into stage N. Fluid pressure during stage II inferred from data of mineral assemblages and fluid inclusions is 370bar.

목차

Abstract

序言

地質

鑛床

流體包有物

考察

結言

參考文獻