云南澜沧县大黑山银铅锌矿床的发现及成因分析
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摘要
大黑山铅锌矿床位于三江地槽褶皱系昌宁-孟连裂谷之南部澜沧裂谷,澜沧裂谷是多种成矿的有利构造环境及多重成矿地质作用"同位叠加"地区,在该区域以往除老厂银铅锌矿为超大型矿外,均未发现其它较大型的矿床。近期在大黑山找矿有了新的突破,发现并圈出铅锌矿体2条,经初步估算资源量具备中到大型的资源量勘探潜力。研究结果表明,大黑山铅锌矿具有岩浆热液型矿床地质特征,深部应有岩体的存在。大黑山矿床的发现对该区域找矿具有显著的指导意义。
Daheishan Pb-Zn deposit is in Lancang rift of the S part of Sanjiang fold system Changning-Menglian rift. Lancang rift is the advantageous environment of various metallogenesis and"equivalent superimposition"area of multi-metallogenesis. In this area,any large ore deposit hasn't been discovered in the past except the superlarge Laochang Ag-Pb-Zn deposit. Recently, there is a breakthrough in Daheishan Prospecting,2 Pb-Zn ore bodies have been discovered and outlined. The resources volume reaches to the middle-large type exploration potentiality according to the preliminary assessment. The study shows Daheishan Pb-Zn deposit has the feature of magmatic hydrothermal deposit,there must be a rock body in the deep. The discovery of Daheishan deposit has an evident guide significance in the prospecting of this area.
Daheishan Pb-Zn deposit is in Lancang rift of the S part of Sanjiang fold system Changning-Menglian rift. Lancang rift is the advantageous environment of various metallogenesis and"equivalent superimposition"area of multi-metallogenesis. In this area,any large ore deposit hasn't been discovered in the past except the superlarge Laochang Ag-Pb-Zn deposit. Recently, there is a breakthrough in Daheishan Prospecting,2 Pb-Zn ore bodies have been discovered and outlined. The resources volume reaches to the middle-large type exploration potentiality according to the preliminary assessment. The study shows Daheishan Pb-Zn deposit has the feature of magmatic hydrothermal deposit,there must be a rock body in the deep. The discovery of Daheishan deposit has an evident guide significance in the prospecting of this area.
引文
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