河北省涞源镰巴岭—沙潭铺一带金银多金属矿地球化学特征  

Geochemical Characteristics of Gold Silver Polymetallic Deposits of the Lianbaling—Shatanpu Area in Laiyuan,Hebei Province

作　　者：张才龙 郭海全 邢欢 陈超 李锋 郭静粉 王晨光 ZHANG Cai-long;GUO Hai-quan;XING Huan;CHEN Chao;LI Feng;GUO Jing-fen;WANG Chen-guang(Geological Exploration Technology Center of Hebei Bureau of Geology and Mineral Resources Exploration,Shijiazhuang 050081,China;Hebei GEO University,Shijiazhuang 050031,China)

机构地区：[1]河北地质矿产矿产勘查开发局地质勘查技术中心,河北石家庄050081 [2]河北地质大学,河北石家庄050031

出　　处：《河北地质大学学报》2023年第5期12-25,共14页Journal of Hebei Geo University

基　　金：河北省地质矿产勘查开发局科研项目(13000022P00329410103R);河北省地质矿产勘查开发局科研项目(13000022P00329410108U)。

摘　　要：太行山涞易地区位于华北地幔亚热柱阜平幔枝构造的北端,是河北省金银多金属矿重要成矿区之一。在综合研究区域地质背景基础上,通过对涞源镰巴岭—沙潭铺一带开展1∶5万水系沉积物测量工作,认为本区内主要赋矿地层为太古界变质岩和中元古界碳酸盐岩;控矿构造为乌龙沟—上黄旗深大断裂两侧,核部岩浆-变质核杂岩内破碎带、外围拆离滑脱带上次级断裂;由核部向外主要成矿元素为Au、Cu(Mo)-Au、Ag-Ag(Au)、Pb、Zn,矿化分带明显。乌龙沟—上黄旗断裂带内,Au-Ag、Pb-Zn、W-Mo 3种异常组合空间分异明显;金银赋矿构造主要是近南北向的基底和盖层之间的构造滑脱带,滑脱带内蚀变强烈。通过详细的研究建立了地质-地球物理-地球化学综合找矿模式。The Laiyi area of the Taihang Mountains is located in the northern end of the Fuping mantle branch structure of the North China mantle sub-thermal column.It is one of the important metallogenic areas of gold and silver polymetallic deposits in Hebei Province.Based on the comprehensive study of regional geological background,through the 1∶50000 stream sediment survey in the Lianbaling—Shatanpu area of Laiyuan,it is considered that the main ore-bearing strata in this area are Archean metamorphic rocks and Mesoproterozoic carbonate rocks.The ore-controlling structure is the secondary fault on both sides of the Wulonggou-Shanghuangqi deep fault,the inner fracture zone of the core magma-metamorphic core complex and the outer detachment slip zone.The main ore-forming elements from the core outward are Au,Cu(Mo)-Au,Ag-Ag(Au),Pb,Zn,and the mineralization zoning is obvious.In the Wulonggou-Shanghuangqi fault zone,the spatial differentiation of Au-Ag,Pb-Zn and W-Mo anomaly combinations is obvious.The gold-silver ore-bearing structure is mainly a structural detachment zone between the nearly north-south basement and the caprock,and the alteration in the detachment zone is strong.A comprehensive geological-geophysicalgeochemical prospecting model is established。

关 键 词：地球化学 幔枝构造 找矿模式 涞易地区 

分 类 号：P611[天文地球—矿床学]