Cu-Fe-Sn-S系 鑛物의 産出狀態와 相安定關係

• 영문명: Occurrences and Phase Stability Relations of Minerals of the Cu-Fe-Sn-S System
• 발행기관: 대한자원환경지질학회
• 저자명: Min Sung Lee(李旼成)
• 간행물 정보: 『자원환경지질』13권 4호, 205~213쪽, 전체 9쪽
• 주제분류: 자연과학 > 지질학
• 파일형태: PDF
• 발행일자: 1980.12.30

영문 초록

Stannite is mainly found in hypothermal ore deposits, whereas mawsonite and stannoidite occur characteristically with bornite and chalcopyrite in subvolcanic (xenothermal) ore deposits. Mawsonite always shows the replacement on the rims of stannoidite grains or along the grain boundaries of stannoidite, bornite and chalcopyrite. In the Tada mine, Japan, the following mineral assemblages of the Cu-Fe-Sn-S minerals were observed. 1) bornite-stannoidite; 2) stannoidite-chalcopyrite; 3) stannite-chalcopyrite; 4) bornite-mawsonite-stannoidite; 5) bornite-stannoidite-chalcopyrite; 6) mawsonite-stannoidite-chalcopyrite; 7) stannoidite-stannite-chalcopyrite; 8) bornite-mawsonite-stannoidite-chalcopyrite The heating and D.T.A. experimental results indicate that natural stannoidite containing 3 weight percent of zinc decomposes to bornite, stannite and chalcopyrite at above 500℃, whereas zinc-free synthetic stannoidite is stable up to 800℃. The stability temperature of zincian stannoidite depends on the zinc content. Mawsonite is stable at temperatures below 390℃ and decomposed to stannoidite, bornite and chalcopyrite above it. According to the sulfur fugacity determination by the electrum tarnish method the univariant assemblage of mawsonite, bornite, stannoidite and chalcopyrite requires a higher sulfur fugacity than that of bornite, stannoidite and chalcopyrite assemblage.

목차

Abstract

1. 序言

2. Cu-Fe-Sn-S系 鑛物의 産出狀態

3. Cu-Fe-Sn-S系 鑛物의 組成

4. Cu-Fe-Sn-S系 鑛物의 相安定關係

5. 結論

References