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对玉山钨矿中酸性侵入岩进行岩石化学特征和稀土元素分析,岩石化学特征图解表明,玉山矿区侵入岩为S型花岗岩类,稀土元素分布模式表明玉山矿区岩浆岩为同源不同期岩体.综合地质特征分析,玉山矿区岩浆岩来自上地幔,在地壳深部岩浆房充分分异,成矿母岩浆沿大断裂运移上升,在接触界面下凹部位形成矽卡岩矿型白钨矿体,在围岩(碳酸盐岩)裂隙中形成脉状白钨矿脉.
The petrochemical characteristics and REE analysis of the intrusive rocks in the Yushan tungsten ore deposit show that the intrusive rocks in the Yushan mining area are S-type granites, and the REE distribution patterns indicate that the magmatic rocks in the Yushan mining area are of different ages. According to the analysis of comprehensive geological features, the magmatic rocks in the Yushan mining area come from the upper mantle and are fully differentiated in the deep crust. The magma in the ore-forming parent rocks migrate along large faults and form skarn ore scheelite in the concave part of the contact interface. Vein scheelite veins formed in the surrounding rock (carbonate) fissures.