云南东川雪岭铜多金属矿区深部隐伏矿体预测定位与找矿新发现

Journal of East China Institute of Technology(Natural Science Edition)(2018)

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Abstract
雪岭矿区位于康滇地轴云南段东川矿区南缘,主要出露震旦系和寒武系沉积地层,浅部可见铜多金属脉状矿化沿断裂带和辉绿岩脉产出.结合区域地质演化背景,根据物探和钻孔工程,在矿区深部发现了全隐伏的陡山沱组中的层状铜矿.铜矿物以黄铜矿、斑铜矿为主,主要呈浸染状、网脉状、薄层状和星点状赋存于深灰色破碎状白云岩、黑色炭泥质岩和石英脉中,矿体具明显沉积及热液叠加改造特征.该铜矿与东川滥泥坪矿区所含陡山沱组铜矿相似,反映出东川矿区陡山沱组成矿作用已延续至雪岭深部.综合分析认为,雪岭深部陡山沱组和昆阳群基底均具有较好的找矿前景.
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Key words
concealed copper deposit,geophysical prospecting,drilling,prospecting potential,Xueling
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