辽宁省桓仁县双水洞铜矿床地质特征与找矿意义

Geological Characteristics and Prospecting Significance of the Shuangshuidong Copper Deposit in Huanren County,Liaoning Province

双水洞铜矿床位于中朝准地台桓仁中生代盆地内。北东向太平哨断裂贯穿全区,闪长玢岩脉沿太平哨断裂的次级断裂充填,为矿床提供了热动力来源及赋存空间,凤山组内相对高的铜元素背景值为矿床的形成提供了重要的物质来源,5条铜矿体赋存在断裂破碎带、闪长玢岩与凤山组接触部位。经综合研究,双水洞铜矿床受凤山组地层、断裂及闪长玢岩脉控制,该矿床为中低温岩浆热液型矿床。

The Shuangshuidong copper deposit is located in the Mesozoic basin of Huanren in China-dprk platform.The NE-trending Taipingshao fault runs through the whole region.The diorite porphyrite veins filled along the secondary fracture of the Taipingshao fracture,providing the thermal power sources and existing space for the deposit.The relatively high copper background value of Fengshan formation provides important material sources for the formation of deposits.The five copper bodies were located in Fracture zone and the contact parts of the Fengshan formation and diorite porphyrite.It is inferred that the Shuangshuidong copper deposit is controlled by the Fengshan formation,the fracture and diorite porphyrite.It is a medium-low temperature hydrothermal type deposit.