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鄂西北许家坡金银矿床地质地球化学特征及成因分析
GEOLOGICAL-GEOCHEMICAL CHARACTERISTICS AND GENESIS ANALYSIS OF XUJIAPO GOLD-SILVER DEPOSIT IN NORTHWEST HUBEI PROVINCE
【摘要】 通过对区域地质、矿床地球化学特征及同位素测年等资料的研究分析,提出许家坡金银矿床受武当山(岩)群及武当隆起-滑脱构造和武当逆冲推覆构造的控制,表现出地层和构造控矿的双重性,其成矿因素比较复杂,成矿物质主要来源于深部,成矿热液主要属变质热液型中—低温热卤水,矿床成因为中—低温热液型矿床。
【Abstract】 On the basis of the regional geology, the geochemistry of deposit and the isotope chronology, this paper advances that the mineralization of Xujiapo gold-silver deposit is controlled by the Wudang group, the Wudang rise-slip structure and the Wudang thrust nappe structure,showing the stratum-structure control over mineralization and the polymineralization.The deposit has the complex metallogenic factors with the metallogenic materials originated from the deep. The genesis belongs to the gold-silver deposit of magmatic meso-epithermal solution with partial mixing of deep brine and metamorphic water.
【Key words】 Wudang rise-slip structure; Wudang thrust nappe structure; geochemical characteristic of deposit; metallogeny; Xujiapo gold-silver deposit;
- 【文献出处】 地质科技情报 ,Geological Science and Technology Information , 编辑部邮箱 ,2003年04期
- 【分类号】P618.5
- 【被引频次】5
- 【下载频次】185