Genesis of Lenticular Cr Deposits in Selugwe, Zimbabwe
详细信息
- 责任者：Wang Tiejun (Sinosteel Tianjin Geological Academy ; Tianjin 300181 ; China) ; Liu Xiaoyang
- 刊名：Contributions to Geology and Mineral Resources Research
- 出版年：2012
- 卷期：27(4)
- 关键词：铬铁矿矿床 ; chromite deposit ; 透镜状矿床 ; podiform deposit ; 津巴布韦 ; Zimbabwe
- 页码：p.485-490
- 图表：2 illus., 2 tables, 6 refs.
- 分类号：1001
- issnNo：ISSN1001-1412
- isbnNo：CN12-1131/P
摘要
Based on geological background, structure-control characteristics, spatial location, altered rock assemblage, ore structure and texture of Cr deposits in Selugwe area a hypothesis is put forward that the deposits are formed by supercritical fluid of H2-CH4. During intrusion of Archean ultra-basic complex the H2-CH4 –rich supercritical fluid moved to shallow crust along structural zone and incorporated with water and Cr-spinel is formed from reaction of H2-CH4 with water as the lenticular Cr deposits.