雙田重石鑛床의 鑛物共生과 流體包有物硏究

• 영문명: Mineral paragenesis and fluid inclusion study of Ssangjeon tungsten deposits
• 발행기관: 대한자원환경지질학회
• 저자명: Seok Tai Youn(尹錫台) Hee In Park(朴喜寅)
• 간행물 정보: 『자원환경지질』15권 4호, 221~234쪽, 전체 14쪽
• 주제분류: 자연과학 > 지질학
• 파일형태: PDF
• 발행일자: 1982.12.30

영문 초록

Ssangjeon tungsten ore deposits is a complex pegmatite deposits embedded along the contact between pre-Cambrian Buncheon granite gneiss and amphibolite. This pegmatite vein developed 2km along the strike and thickness varies from 10m to 40m. Mineral constituent of the normal pegmatite are quartz, microcline, plagioclase, muscovite, biotite, tourmaline and garnet. The vein paragenesis is complicated by repeated deposition of quartz but three distinct depositional stage can be recognized. Quartz A stage is the stage of the earliest milky white quartz deposition as a rock forming mineral of normal pegmatite. Quartz B stage is the stage of gray to dark gray quartz replace earlier formed normal pegmatite minerals. Quartz C stage is the stage of latest white translucent massive quartz replace quartz A and B. Tungsten ore minerals and other sulfide minerals were precipitated during quartz B stage. Ore minerals are ferberite and scheelite. Minor amount of molybdenite, arsenopyrite, pyrrhotite, pyrite, chalcopyrite, sphalerite, galena, pentlandite, bismuthinite, native bismuth and marcasite accompanied. Fluid inclusion in quartz A and B are gaseous inclusions and liquid inclusions are contained in quartz C as a primary inclusions. Salinity of inclusions in quartz A and B ranges from 4.5 to 9.5 wt.% and from 5.1 to 6.0 wt.% equivalent NaCl respectively. Homogenization temperature of quartz A, quartz B and quartz C ranges from 415 to 465℃, from 397 to 441℃ and from 278 to 357℃. CO₂content of the ore fluid increased at the ends of quartz B stage.

목차

Abstract

序言

2. 地質

3. 鑛床

4. 鐵망간重石의 化學組成

5. 流體包有物硏究

6. 鑛床의 成因에 對한 考案

7. 結言

參考文獻