藏南地区构造演变对成矿的限制——以扎西康矿集区为例

LIMITATIONS OF TECTONIC EVOLUTION ON MINERALIZATION IN SOUTHERN TIBET——A CASE STUDY OF ZHAXIKANG ORE-GATHERING AREA

扎西康整装勘查区是藏南地区重要的成矿区,位于青藏高原南部,特提斯—喜马拉雅成矿带东段,北缘为冈底斯陆块。扎西康多金属矿床和其周围矿区均受到断裂构造控矿的限制。本文在分析和总结岩浆活动、变质作用与构造演化事件的耦合关系基础上,探讨了铅锌多金属成矿带的基础地质、形成特点及矿床分布规律,对扎西康矿集区成矿、控矿因素及成矿规律进行了总结和讨论。

Zhaxikang integrated exploration area is an important metallogenic area in southern Tibet.It is located in the south of Qinghai-Tibet plateau,in the eastern part of the tethy-himalayan metallogenic belt,and the north margin is the Gangdise landmass.Zhaxikang polymetallic deposit and its surrounding mining areas are restricted by fault structure.On the basis of analyzing and summarizing the coupling relationship between magmatic activity,metamorphism and tectonic evolution events,this paper discusses the basic geology,forming characteristics and distribution rules of Pb-Zn polymetallic metallogenic belt,and summarizes and discusses the metallogenic,ore-controlling factors and metallogenic rules in Zhaxikang ore-gathering area.