陕西镇安枇库沟铅锌矿地质特征及找矿方向  

Geological Feature and Prospecting Direction of Pikugou Lead-Zinc Ore in Zhen′an County, Shaanxi

作　　者：许寻会 胡希有 王海岗 

机构地区：[1]陕西省核工业地质调查院,陕西西安710054

出　　处：《西北地质》2012年第3期109-115,共7页Northwestern Geology

基　　金：陕西省地质勘查基金项目"陕西省镇安县文家沟地区金及多金属矿产普查"(61201002067)

摘　　要：枇库沟铅锌矿地处南秦岭山-柞-镇-旬多金属成矿区,南秦岭公馆-回龙镇汞、锑、金、银、铅、锌多金属成矿带上,产于中泥盆统杨岭沟组碳质灰岩与上泥盆统落家河组碳质千枚岩的接触带中靠灰岩一侧,两种岩性之间呈断层接触,断层产状倾向350°,倾角73°～77°。通过对区域地质、矿体地质,以及控矿因素等方面的分析研究,提出了该区铅锌矿成矿元素具有明显的分带性;结合目前钻探揭露情况及Ba元素的分布范围,确定了该区铅锌矿目前处于顶部相,深部铅锌矿有较大找矿潜力;结合瞬变电磁异常及钻孔验证,认为在1和0号线和6～8号线存在2个铅锌矿隐伏矿体。Pikugou lead-zinc ore is located in Sh_an （ Shanyang）-Zha （ Zhashui ）-Zhen （ Zhndn）-Xun （Xunyang） polymetallic metallogenic area in the southern Qinling Mountains, in Gongguan-Huilong town a mercury, antimony, gold, silver, lead, zinc polymetallic metallogenic belt , found in Medial Devonian Yanglinggou Formatian carbonaceous limestone and Upper Devonian Luojiahe Formation carbonaceous phyllite contact zone by limestone side, two lithology between contact in fault, fault occurrence tendency 350~ inclination 73^- 77~. Based on the regional geology, ore body geology, and the ore controlling factors and so on, the lead-fine metallogenic el- ements have obvious zonation, combined with the current drilling to expose and barium element distribution range, determining the lead-zinc ore is currently in the top phase, deep lead-zinc ore has more prospecting potential, combined with the transient electromagnetic anomaly and drilling data found in the line 1-0 and 6-8 there are two lead-zinc concealed orebodies.

关 键 词：铅锌矿 喷流-沉积矿床 同生断裂 瞬变电磁 

分 类 号：P618-4201[天文地球—矿床学] P618-4301[天文地球—地质学]