甘肃杨坪金矿床控矿特征及找矿方向  

Ore-controlling characteristics and prospecting direction of Yangping gold deposit,Gansu Province

作　　者：张银斗[1] 

机构地区：[1]甘肃省核地质二一三大队

出　　处：《黄金》2013年第1期24-28,共5页Gold

摘　　要：杨坪金矿床赋存于下古生界丹凤群大草坝组变火山—沉积建造中,金矿化严格受层间挤压破碎(片理化)带控制,赋矿岩性为蚀变的二云石英片岩、绢云母石英片岩、绿泥石英片岩等变质岩及黄铁矿化石英脉,金矿化受变质、构造及次生氧化三重作用控制。对杨坪金矿床的地质特征及控矿特征进行了系统的研究,总结了找矿标志,并指出了找矿方向。Yangping gold deposit occurs in the Lower Paleozoic Danfeng Group Caoba Unit volcano-sedimentary structure. The mineralization is strictly controlled by interlayer compressive rupture zone and the host rocks are metamorphic rocks like altered two-mica-quartz schist, sericite schist and chlorite quartz schist, and pyritization quartz vein. Gold mineralization is controlled by three factors, namely alteration, structure and secondary oxidation. The paper systematically studied the geological characteristics and ore-controlling features of Yangping gold deposit, summarized the prospecting indicators, and pointed out the prospecting direction.

关 键 词：地质特征 控矿特征 找矿标志 找矿方向 杨坪金矿床 

分 类 号：P618.51[天文地球—矿床学] TD11[天文地球—地质学]