태백산광화대내의 원동 다금속광상의 성인

• 발행기관: 대한자원환경지질학회
• 저자명: 황덕환 이재영
• 간행물 정보: 『자원환경지질』31권 5호, 375~388쪽, 전체 14쪽
• 주제분류: 자연과학 > 지질학
• 파일형태: PDF
• 발행일자: 1998.10.30

영문 초록

The purpose of this study is to invetigate the ore genesis and occurrence of the Wondong polumetallic mineral deposits. The Pb-Zn, Fe and W-Mo mineralizations are found in skarn zones which formed mainly in or along the fault shear zones with the N25-40˚W and N10-50˚E directions, whereas the Cu-Mo mineralization is apeared hydrothermal relacement zone. The skarn minerals consist mainly of garnet and epidote, which were the last alteration phases between pneumatolytic and hydrothermal stage. The mineral paragenesis toward the late stage are as follows: arsenopyrite, scheelite, magnetite, pyrite, pyrrhotite, sphalerite, galena, chalcopyrite and molybdenite. Average ore grades are 0.33 g/t Au, 46.29 g/t, 0.06% Cu, 4.4% Pb, 2.61% Zn and 29.39% Fe in tunnels, and 0.31% cu, 0.52% Pb, 6.29% Zn, 29.29% Fe, 0.03% Mo and 0.12% WO₃in drill cores. Fluid inclusion data shows that Type I(liquid-rich), Type II (vapor-rich) and Type III (halite-bearing) inclusions are coexisted and their homogenization temperatures are quite similar. This indicates that boiling conditions have been reached during the mineralization. It is also likely that the ore solutions were evolved through the mixing between magmatic and meteoric waters. Phyolite and quartz porphyry far the mineralization probably are not responsible of the Wondong polymetallic mineral deposits.

키워드

태백산광화대 함백향사 원동 다금속광상 스카른 광석광물,유체포유물 회중석 방해석 석영 조선누층군