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额尔古纳地块是我国重要的金矿成矿区之一,矿床成因类型主要为造山型金矿床和浅成低温热液型金矿床。其中造山型金矿床主要分布于额尔古纳隆起区,而浅成低温热液金矿床则主要分布于中生代火山岩盆地中。造山型金矿床的形成受控于韧性剪切带,成矿物质主要来自于地壳浅部的含金矿源层,成矿流体为变质热液与大气水热液的混合热液;而浅成低温热液型金矿床的形成则受控于火山机构,成矿物质主要来自于岩浆本身,成矿流体为岩浆热液与大气水热液的混合成分。
The Erguna massif is one of the important gold mineralization areas in China. The genetic types of the deposits are mainly orogenic gold deposits and epithermal gold deposits. The orogenic gold deposits are mainly distributed in the Erguna uplift area, while the epithermal gold deposits are mainly distributed in Mesozoic volcanic basins. The formation of the orogenic gold deposit is controlled by the ductile shear zone. The metallogenic materials mainly come from the gold-bearing source rocks in the shallow crust, and the ore-forming fluids are the mixed hydrothermal fluids of metamorphic hydrothermal fluids and atmospheric hydrothermal fluids. The formation of the low-temperature hydrothermal gold deposits is controlled by the volcanic organization. The metallogenic materials mainly come from the magma itself. The ore-forming fluid is a mixed component of magmatic hydrothermal fluids and atmospheric hydrothermal fluids.