摘要
矿区主要金矿化层为下奥陶统老寨组(O1l),而非下泥盆统坡松冲组。金矿化主要受断裂构造+岩浆活动+不整合面+岩性等多因素的综合控制,矿体富集的空间部位与断裂构造及深部岩浆活动有密切的关系。丰富和扩展了滇东南地区加里东不整合面控矿理论的内涵,明确矿区深部及外围找矿空间。
According to the further study of the stratigraphical system,metallogenesis horizon,geological characteristics of ore deposit and ore control factor in orefield,we think that the main Au metallogenesis bed of Orefield is Lower Ordovician Laozhai Formation(O1l),none of the Lower Devonian Posongchong Formation.The Au metallogenesis is mainly controlled jointly by fault,magmatism,unconformity and lithological characters.And the concentration space of ore body is in close relation to the fault and deep magmatism,which has extended the intension of ore control theory of Caledonian unconformity in SE Yunnan and determined the ore prospecting space in the deep part and the surronding area of orefield.
出处
《云南地质》
2012年第1期12-17,共6页
Yunnan Geology
关键词
厘定矿化层时代
多因素综合控矿
找矿意义
老寨湾金矿
滇东南
Determination of Metallogenesis Bed Age
Joint Ore control of Multi-Factors
Ore Prospecting Significance
Laozhaiwan Au Deposit in SE Yunnan
