Deep Mineralization Background and Metallogenic Regularity of the Tongling Ore District  

作　　者：WAN Qiu DU Jianguo YANG Bo LAN Xueyi XIAO Xiao SHI Ke 

机构地区：[1]Geological Survey of Anhui Province(Anhui Institute of Geological Sciences),Hefei 230001,China [2]Technology Innovation Center of Coverage Area Deep Resource Exploration Engineering,MNR,Hefei 230001,China [3]Institute of Mineral Resources,Chinese Academy of Geological Sciences,Beijing 100037,China [4]Geological Exploration Technology Institute of Anhui Province,Hefei 230031,China [5]Central South University,Changsha 410083,China

出　　处：《Acta Geologica Sinica(English Edition)》2020年第6期1893-1908,共16页地质学报（英文版）

基　　金：funded by the Key R&D Program of the Anhui Province(201904a07020077);the Project of Geological Science and Technology of Anhui Province(2020-K-13)。

摘　　要：Based on the geological conditions and characteristics of mineralization present,three-dimensional geological modelling is used in conjunction with previous deep research results,in order to discuss the process of deep mineralization in the Tongling ore district.The structural analysis shows that surface deformation is strong,deep deformation is weak,the surface has mainly experienced brittle deformation,with the possibility of a large number of deep ductile deformations.There is a thrust nappe between the Tongling uplift and the Nanling basin,that is the boundary of the Tongling block,which has resulted in the southwest uplift of the Tongling block.Combined with the deep exploration data,the threedimensional shape of the main rock masses is interpreted,with three-layer structures in the deep magma chamber.The spatial distribution of magmatic rocks is mainly controlled by the structure.The movement of magmatic hydrothermal fluid is dominated by mesoscale seepage in the deep part and'dike'type upwelling in the shallow part.There is a certain coupling relationship between the ore-forming rock mass and the surrounding rock.The ore-forming age is dominated by the Yanshanian period.Based on the distribution,types and metallogenic characteristics of the deposits,the metallogenic model of'layer coupling'in the Tongling ore district is summarized,with the'one body,two belts and a multilayer metallogenic system'is established,which is significant for the future direction of deep prospecting in the Tongling area.

关 键 词：3D model metallogenic model prospecting direction deep mineralization TONGLING 

分 类 号：P612[天文地球—矿床学]