栾川县白庙沟钼矿地质特征及成矿规律初探

Study on Geological Characteristics and Metal ogenic Regularity of Baimiao Ditch in Luanchuan County

白庙沟钼矿区位于华北陆块卢氏—栾川陆缘褶断带,区域岩浆活动强烈,断裂构造较发育。矿区出露少量中元古界熊耳群火山岩地层,矿体的空间位置受岩体接触带的控制,成矿期断裂构造活动对成矿富集作用明显。钼矿体主要赋存于中粒(黑云母)二长花岗岩与熊耳群变安山岩弧形接触带(岩体顶部)附近,成矿热液来源于岩体,多期次构造活动在赋矿岩石中形成的次级构造裂隙(解理)、破碎蚀变是成矿的有利因素。

Baimiaogou Molybdenum Deposit is located in the North China block in Lushi- Luanchuan continental margin fold belt,regional magmatic activity is strong,the bleak structure is very growth。Mining area exposed bit middle Proterozoic Xiong 'er Group volcano rock formation,the space position of the ore body is controlled by the contact zone of the rock mass,the fault tectonic activity in mineralization period is obvious to the mineralization enrichment。 Molybdenum ore bodies mainly occur in the grains( biotite) monzogranite and the Xionger group variable arc andesite of near( rock mass at the top) the contact zone,ore forming hydrothermal fluid originates from the rock mass,multi- stage of tectonic activity in the ore bearing rock formation of secondary tectonic fracture( cleavage),broken alteration mineralization favorable factors.