蔚山 鐵ㆍ重石 鑛床 의 成因

• 영문명: On the Genesis of Ulsan Iron-Tungsten Deposits
• 발행기관: 대한자원환경지질학회
• 저자명: Ki Hwa Park(朴箕和) Hee In Park(朴喜寅)
• 간행물 정보: 『자원환경지질』13권 2호, 104~116쪽, 전체 13쪽
• 주제분류: 자연과학 > 지질학
• 파일형태: PDF
• 발행일자: 1980.06.30

영문 초록

The Ulsan mine is one of the largest contact metasomatic magnetite and scheelite deposits in the southeastern part of Korea. Mineralization at the Ulsan mine is localized along the contact between upper Cretaceous volcanic rocks and age unknown limestone which were intruded by 58 m.y. -old biotite-horndlende granite. General zonal sequence of skarn toward crystalline limestone from limestone-volcanics contact is grandite, grandite-salite and salite zones. On the otherhand volcanics origin skarns exhibits zonal sequences toward hornfels from boundary with limestone is garnet, garnet-epidote, and epidote zone. Compositions of garnets and clinopyro xenes are determined by the X-ray diffraction and reflective indecies. Local brecciation of these early skarns were followed by formation of the later skarn as zoned patches, breccia fillings and cross-cutting veins. Paragenetic sequence of late skarn minerals which is exhibited in the zoned patches and veins is an overlapping progression with time from andradite through hedenbergite or actinolite, quartz to calcite deposition. Magnetite metallization followed early formed skarns and pyrite pyrrhoite, sphalerite, galena, tennantite, scheelite and arsenopyrite deposition were simultaneously with hedenbergite, quartz and calcite of late skarn. Filling temperatures of fluid inclusions in calcites range from 160° to 280℃.

목차

Abstract

I. 序言

II. 地質

III. 鑛床

IV. 鑛石鑛物

V. 鑛物의 共生關係

VI. 流體包有物

VII. 考察

VIII. 結言

參考文獻