| Baixiangchang porphyry gold deposit is located in Binchuan County of Yunnan province binju Town,the tectonic position,in combination of the Yangtze paraplatform and Sanjiang fold system of two structural system with triangle type Jinsha River Ailaoshan deep fault and the Binchuan fault to Chenghai fault zone two clamping the Binchuan-Heqing alkali rich porphyry zone and the porphyry Au-Cu-Mo ore District,with good metallogenic conditions and great prospecting potential.In this paper,on the basis of the analysis of regional ore control structure of geological background,through field geological survey,geological profile survey,tunnel catalog,key observation records,a comprehensive analysis of geophysical and geochemical exploration results,observation analysis and Research on rock and ore controlling tectonic characteristics,the research area of rock and ore controlling characteristics were analyzed summary.The tectonic setting of the study area is very complex,and the geotectonic units have undergone long-term evolution and strong tectonic magmatic activity,which provides favorable ore-forming geological background for the formation of the ore deposits in the study area.This paper deepen regional ore controlling geological background,system data collection,summary the regional tectonics,geophysical research area,magmatite distribution,the distribution of mineral resources and regional faults,from the space between the analysis and summary of regional ore controlling characteristics,analysis the type structure formation control system the Jinsha River Ailaoshan porphyry belt,western Yunnan type structure(North Jinsha River Ailaoshan fault)and meridional structure(Chenghai Binchuan fault)composite control research area of porphyry zone,control of the northwest of Yunnan-Dali-Yongsheng-Lijiang Jianchuan rhombic block formation and evolution,and control of the rhombic block surface densely distributed in the porphyry group characteristics,to continue the exploration area specific research foundation.Fold of faults and more development,is the type of Jinsha River Ailaoshan deep fault and Chenghai fault to the superposition and interaction form,the Baixiangchang exploration area mainly developed North East fracture and Liziyuan binju anticline.Through detailed exploration area of field geological survey and exploration engineering logging,and interpreting the exploration area of high precision magnetic method,high frequency earth magnet(EH4)measurement data,analysis of different levels and different plane elevation profile of Baixiangchang rock plant,on the west side of concealed rock and secondary NE and NW apophyse spatial distribution,shape and occurrence,think Liziyuan faults control the Baixiangchang rock strain emplacement,and then control the distribution,morphology and occurrence;Liziyuan North East to west and north to the secondary faults provide space for magma penetration,and then control the NE and NW secondary branches rock spatial distribution and morphology,occurrence;fracture is mainly guide rock exploration Liziyuan area rock controlling structure.The ore prospecting area of different types and different spatial distribution(Group)into the Li Ziyuan fault Baixiangchang rock intrusive contact zone,North West line secondary fault zones and binju anticline Baixiangchang rock intrusive structure with three lines of space,to analyze multiple planar geological map and geological prospecting engineering application geophysical profile,exploration engineering logging map,from the overall and local reveals the Li Ziyuan fault,binju control characteristics of rock,orebody exploration area in spatial distribution,morphology,occurrence and other aspects of the anticline structure.This paper finally summarizes the exploration area of Baixiangchang rock plant,rock branch is magma along the North East to fracture and Liziyuan invasion,in the invasion process to both sides of the fault(mainly North West nature brittle carbonate strata distribution area)North East or North West secondary faults in the formation of penetration the;Contact along the fault fracture-Baixiangchang Liziyuan rock plant with large Fe-Au-Cu-Ag-Pb formed a rich ore and Au-Cu-Ag-Pb soil geochemical anomaly concentration,in the Baixiangchang rock plant is developed on the Cu-Mo anomaly in the north western region of carbonate rocks developed multi direction Ag-Pb orebody(vein)group,forming a contact-mineralization tectonic system obvious invasion,fault rock,ore control effect significantly. |
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