青海双口山铅银矿床地质特征及控矿因素分析  

Geological characteristics and ore-controlling factors of Shuangkoushan Lead-Silver deposit,Qinghai

作　　者：何钟强 赵乙蘅 苏生云 李积明 HE Zhong-qiang1,2, ZHAO Yi-heng1,2, SU Sheng-yun1,2, LI Ji-ming1,2(1. Hydrogeological and Geothermal Geological Key Laboratory of Qinghai Province ,Xining 810008; 2. Survey Institute of Hydrogeology, Engineering geology and Environmental geology of Qinghai Province,Xining 81000)

机构地区：[1]青海省水文地质及地热地质重点实验室,西宁810008 [2]青海省水文地质工程地质环境地质调查院,西宁810008

出　　处：《矿产勘查》2018年第1期109-116,共8页Mineral Exploration

摘　　要：柴北缘是青海省重要的铅锌金等矿产的产区,双口山铅银矿床与区内的锡铁山大型铅锌矿床均位于柴北缘中西端,前人对锡铁山铅锌矿区做了较深入的研究,但对处于同一构造带的双口山铅银矿区研究还相对薄弱。通过对矿区内的地层、构造、矿体特征等因素的综合分析,认为双口山铅银矿床形成于华力西期,滩间山火山岩为双口山铅银矿床的矿源层;空间上区域北西—南东向断裂构造控制了含矿地层的分布范围。北东—南西方向次级断裂带控制矿体的分布。通过对矿区地质特征及控矿因素的研究,为在该区进一步找矿提供参考。The northern margin of Qaidam Basin in Qinghai province is an important producing area of lead,zinc,gold and other minerals. Both the Shuangkoushan lead-silver deposit and Xitieshan large-scale lead-zinc deposit are located at the western end of the northern margin of the Qaidam Basin,previous study in Xitieshan lead-zinc property has been deeply done,but that in Shuangkoushan lead-silver property of the same tectonic belt is relatively weak. Therefore,this paper comprehensively analyzes the characteristics of the strata,structure,orebody and other factors,and considers that Shuangkoushan lead-silver deposit was formed in Variscan period,and the source bed of the deposit is Tanjianshan volcanic rock. The NW-SE trending regional faults spatially controlled the distribution of ore-bearing strata,while the NE-SW trending secondary faults controlled the distribution of ore bodies. The study of geological features and ore-controlling factors could provide reference for further prospecting in this area.

关 键 词：双口山 断裂构造 控矿因素 青海 

分 类 号：P618.42[天文地球—矿床学] P618.52[天文地球—地质学]