慶南 固城 東海鑛山의 地質 및 鑛床

• 영문명: Geology and Ore Deposits of the Donghae Mine, Goseong Area
• 발행기관: 대한자원환경지질학회
• 저자명: Jong Dae Kim(金鍾大)
• 간행물 정보: 『자원환경지질』20권 4호, 213~221쪽, 전체 9쪽
• 주제분류: 자연과학 > 지질학
• 파일형태: PDF
• 발행일자: 1987.08.30

영문 초록

The Donghae mine locates at Jangjoari, Koseongun, Kyongsang-nam-do. The geology of the mine consists of the upper part of Chin dong Formation conformably overlain by tuffaceous Koseong Formation. These formations are intruded by the granodiorite and the basic dikes. The ore mineralization occurs in the fault breccia pipe at the center of a granodiorite stock. The estimated dimension of the breccia pipe is 7m×70m×200m. The host rock has distinctive hydrothermal alteration halos consisting hematite zone, chlorite zone, epidote zone and sericite zone from outer zone to the ore vein. The ore mineralization occurred in the three distinctive stages. The ore minerals formed in the first stage are pyrite, sphalerite, chalcopyrite, stannite and tetrahedrite. Galena and arsenopyrite are formed in the second stage. Some sphalerite grains include exsolution dots of the chalcopyrite. It is suggested that the ore mineralization occurred by a boiling of a hydrothermal fluid during its initial stage and subsequent cooling and CO₂ fugacity drop of remaining hydrothermal fluid by a ground water mixing aided vertical zoning of the ore minerals.

목차

Abstract

序論

地質

變成作用과 母岩變質

地質構造

鑛床

鑛床의 成因에 對한 考察

結論

參考文獻