内蒙古阿拉善呼口塞勒铜矿床Ⅱ号矿体原生叠加晕特征

Characteristics of Primary Superimposed Halo in No.2 Ore Body in Hukousaile Copper Deposit in Alashan of Inner Mongolia

研究了内蒙古阿拉善呼口塞勒铜矿床Ⅱ号矿体100线剖面原生叠加晕特征,结果表明,100线剖面＋1 308~1 141m标高的轴向分带序列（由上到下）为W-Ni-As-Pb-Mo-Cu-Co-Au-Zn,有明显的相互叠置特征,地球化学参数在中段逐渐减小,可以确定矿体是多个成矿阶段叠加形成的。2个主成矿阶段形成的矿体部分叠加,矿体上部经过较强的剥蚀,但还有一定的延深。此次原生叠加晕的研究为下一步钻探施工提供了依据,明确了在该区继续进行原生晕研究的方向。

Characteristics of primary superimposed halo of No. 100 line section in No. 2 ore body in Hukou- saile copper deposit in Alashan of Inner Mongolia have been studied. It is showed that elevation axial zon- ing sequences （from top to bottom） in the level of -k1308 - 1141m in No. 100 orebody line section are W - Ni - As - Pb - Mo - Cu - Co - Au - Zn. It has an obvious mutually superposed characteristics. Geochemi- cal parameters decrease gradually in the middle part. It can be determined that ore bodies are formed by multiple superimposed stages of mineralization. Ore bodies of two main metallogenic stages are partially superimposed. Its upper part of orebodies have been denudatied heavily, but there is still a certain exten- sion. Study on primary halo overprinting can provide the basis for drilling in next step. It has clearly deter- mined the study direction of primary halo in this area.