摘要
新疆东戈壁斑岩型钼矿床是一特大型钼矿床,矿床产于下石炭统浅变质碎屑岩夹火山岩中,位于雅满苏大断裂附近。文章通过研究含矿脉体之间的交切关系及生成顺序,将东戈壁钼矿热液成矿作用划分为4个阶段,各阶段均有相应的脉石矿物和金属矿物组合及相应的地球化学响应;通过研究金属矿物之间的穿插、交代、共边关系确定了该矿床矿物生成的先后顺序。研究不仅揭示了流体成矿作用的复杂性,也揭示了金属矿物生成的规律性,对同类型矿床的勘查、找矿工作具有指导意义。
The Xinjiang East Gobi molybdenum deposit is a large-sized porphyry type deposit,which occurs at the low grade meta sedimentary rock intercalated with volcanic clasts of Lower Carboniferous nearby the Yamansu fracture Zone.Based on the research on the spatial relationship of those ore-bearing veins and their formation sequences,this paper has divided the hydrothermal mineralization of East Gobi molybdenum deposit into four stages,each mineralization stage has its own combination of gangue minerals and metallic minerals,as well as relevant geochemical characteristics.The deposition sequence of the minerals was determined though the study of the spatial relationship of various metal minerals such ascross-cut,matesomatic and intergrowth relationship of the metallic minerals.The study not only revealed the complexity of the fluid mineralization,also the regularity of generation of the metallic minerals.The research result will guide the prospecting and exploration for this type of molybdenum deposits.
出处
《矿产勘查》
2013年第6期616-623,共8页
Mineral Exploration
关键词
斑岩型钼矿
东戈壁
东天山
porphyry molybdenum deposit
East Gobi
Eastern Tianshan mountain
Xinjiang
