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青海省兴海县大河坝地区铜银多金属矿成矿地质特征研究

Ruiguo Liu,Zhedong Liu

Coal Geology of China（2018）

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Abstract
青海省大河坝地区位于东昆仑造山带和西秦岭造山带两大造山带的交汇部位,区内成矿地质条件优越.研究结果表明,工作区中部主要存在两条主干矿化构造蚀变带(Ⅰ、Ⅱ号矿化构造蚀变带)和三条次级矿化构造蚀变带(Ⅱ-1、Ⅱ-2和Ⅱ-3号矿化构造蚀变带).I号矿化带中施工的ZK12见15条铜矿体、3条铅(银)矿体、1条金矿体;铜矿体累计视厚度123.45m,Cu平均品位0.50～1.21×10-2.矿体分布受构造控制.空间上呈陡倾状或以透镜状雁行式产出.
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