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冷水银铅锌矿的火山—侵入杂岩体出露于信江中生代火山盆地南缘。岩石化学、微量元素、稀土元素和铷锶同位素分析表明冷水火山岩及次火山岩是同源产物,是同熔岩浆分异的结果。岩浆中成矿物质Cu、Fe、Pb、Zn、S、H_2O的数量与下地壳、上地慢或洋壳物质的部分熔融程度有关。冷水火山—侵入杂岩是钙碱性岩浆于不同演化阶段形成的岩石组合并具有化学成分上的相似性和继承性。岩浆房中具有良好的分带现象,上部为富钾的流纹质岩浆,向下逐渐变为基性岩浆。岩浆由钙碱性向偏碱性演化,促使成矿元素大量富集,在一定条件下形成矿床。
The volcanic-intrusive complex of cold-mercury-zinc-lead ore is exposed to the southern margin of the Mesozoic volcanic basin in the Xinjiang River. Rock chemistry, trace elements, rare earth elements and rubidium-strontium isotope analysis show that cold-water volcanic rocks and sub-volcanic rocks are homologous products, the result of the same lava differentiation. The amount of Cu, Fe, Pb, Zn, S, H_2O in the magmatic ore bodies is related to the degree of partial melting of the lower crust, upper slow or oceanic crust. Lengshuang volcano-intrusive complex is a rock assemblage of calc-alkaline magma formed in different evolution stages and has similar chemical composition and inheritance. Magmatic chamber has a good zoning, the upper part of the potassium-rich rhyolitic magma, down gradually become basic magma. Magma from alkaline to alkaline evolution, prompting a large number of ore-forming elements enrichment, under certain conditions to form a deposit.