Study of Source Background and the Clastic Material Composition of Longtan Formation of Part Southwest Guizhou Province
详细信息
- 责任者：Chen Jinghe (Zijin Mining Co. Ltd. ; Shanghang 364200 ; China) ; Xu Biliang
- 刊名：Guizhou Geology
- 出版年：2011
- 卷期：28(1)
- 关键词：金矿 ; gold ores ; 成矿物质来源 ; source of ore material ; 贵州 ; Guizhou Province
- 页码：p.9-17
- 图表：2 illus., 4 tables, 27 refs.
- 分类号：1001
- issnNo：ISSN1000-5943
- isbnNo：CN52-1059/P
摘要
By abundant polished thin section lithofacies and mineralgraphy study to the drills, tunnels and limited surface outcrop rock simple in southwest Guizhou and northwest Guangxi, and the study of 6 element pairs of petrochemistry, microelement, REE, W(Th)/W(U) and so on, it’s proved that the main material of Longtan Formation above the Dachang layer is from the basaltic volcanic clastic material. The ratio of the element pairs shows that the source mainly is the mantle, the trace element comparison is the same to the Emeishan basalt. Its litholgy should be basaltic tuffite, has closely related with Emeishan basalt erupted in the same era.
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