摘要
通过区域地质、矿区中新生代岩浆岩分布和组成成分、地幔热柱活动等研究,提出了个旧地区花岗岩既不是Ⅰ型、也不是S型,而是壳幔混熔型,可比较合理地解释个旧矿区的岩浆期后热液矿床,而成矿物质大量来自地幔。
Based on research on regional geology, distributions and compositions of Mesozoic and Cenozoic magmatic rocks, and mantle plume in Gejiu district, Yunnan Province, the paper suggested the granite in the study area is neither Ⅰ-type granite nor S-type granite but the mixed-melting type granite of Crust-Mantle. It is reasonable that tin-ploymetallic deposits might have been formed by the ore-forming fluids of postmagma hydrothermal activity with main metallogenic materials derived from the Earth mantle.
出处
《矿产与地质》
2006年第4期413-417,共5页
Mineral Resources and Geology
关键词
锡多金属矿
花岗岩成因类型
地慢热柱活动
个旧
tin-ploymetallic deposits, Genetic type of grunites, activity of mantle plume, Gejie
