河南省嵩县庙岭-九仗沟金矿带F_(8)含矿构造成因探讨  

Discussion on genesis of F_(8) ore-bearing structure in Miaoling-Jiuzhanggou Gold Belt in Songxian,Henan Province

作　　者：刘玉刚 丁培超 徐金武 郭勤强 陈晓利 郎磊 Liu Yugang;Ding Peichao;Xu Jinwu;Guo Qinqiang;Chen Xiaoli;Lang Lei(No.1 Institute of Geological and Mineral Resources Survey,Henan Bureau of Geo-exploration&Mineral Development;Key Laboratory of Metallogenic Series and Deep Prediction of Gold and Silver Polymetallic Deposits of Henan)

机构地区：[1]河南省地质矿产勘查开发局第一地质矿产调查院 [2]河南省金银多金属成矿系列与深部预测重点实验室

出　　处：《黄金》2022年第8期5-9,共5页Gold

基　　金：中国地质调查局发展研究中心项目(DD2019057012);河南省嵩县山金庙岭金矿区深部预测及外围探矿项目。

摘　　要：庙岭—九仗沟金矿带位于华北陆块南缘熊耳山—外方山地区,沿该金矿带F_(8)含矿构造断续产出9个金矿段。由构造切割关系判定,F_(8)含矿构造形成年龄晚于157 Ma,呈现压扭性力学性质,为近东西向挤压运动的结果。结合大地构造背景、构造空间分布特征及区域构造岩浆活动事件,认为F_(8)含矿构造应为伴随燕山期花岗质岩浆侵入而形成的晚侏罗世—早白垩世构造岩浆活动的产物,沿F_(8)含矿构造向深部仍存在大规模成矿的可能,具备开展进一步深部找矿预测的基础。Miaoling-Jiuzhanggou Gold Belt is located in Xiongershan-Waifangshan Area along southern margin of North China Block.There are 9 gold ore sections intermittently distributed in F_(8) ore-bearing structure along the gold belt.According to dissection relationship between fragile structure,formation time of F_(8) ore-bearing structure is later than 157 Ma.It presents mechanical properties of compressive torsion,and is the result of compressive movement in EW orientation.Based on tectonic background,tectonic spatial distribution and tectonic magmatic events,it indicates that the formation of F_(8) ore-bearing structure should be associated with granitic magma intrusion in Yanshanian period,and the result of tectonic magmatic activities in late Jurassic-early Cretaceous.There is possibility o f large-scale minera-lization in the deep F_(8) ore-bearing structures,and the foundation for further deep prospecting prediction.

关 键 词：F_(8)含矿构造 马超营断裂 庙岭—九仗沟金矿带 深部成矿 河南省 

分 类 号：TD15[矿业工程—矿山地质测量] P618.51[天文地球—矿床学]