The Fractal And Metallogenic Prediction Of Fault In The Northwest Of Dayaoshan,guangxi Province

The northwest area of Dayaoshan in Guangxi is located inside the south China mobile belt.The boundary between Laibin Depression and Dayaoshan uplift is the center line of the study area.The northeast corner is connected with the Guilin arc fold belt and belongs to the southwest end of Dayaoshan uplift in Guangxi,it is connected with Luzhai County in its northwest corner and Pingnan County in its southeast corner.This area has rich mineral resources and complex fault structure characteristics,which provides basic conditions for the study of fault structure and mineralization.The northwest of dayaoshan of fracture structure type and quartz vein hydrothermal ore deposit research is based on comprehensive collection of related data,fracture structure based on remote sensing interpretation,combined with the known ore deposit distribution,at the same time using the Fry to analyze distribution regularity of ore deposit and field joints and the stress analysis of copper mining area,discussed metallogenic hydrothermal ore deposits in the study area if there is a fault fractal dimension lines,at the same time,predict the mineralization metallogenic target area.Based on the interpretation of remote sensing fault structure and the known fault structure on mineral geological map,the fractal dimension analysis of linear structure is carried out,and the distribution map of mineral deposits is combined.It is concluded that there is a fractal boundary between the mineralization of hydrothermal deposits in the study area.The fractal boundary of the study area is D=1.5000?1.8000,the fractal boundary of lead-zinc mineralization prediction is D=1.6000?1.7400,copper mineralization prediction is D=1.5000?1.7000,gold mineralization prediction is D=1.6400?1.8000,barite mineralization prediction is D=1.6000?1.7400.Based on the data collation of previous studies and the statistical stress analysis of joints in the field,it is concluded that the ore deposits in the study area are strictly controlled by the faulted structure.The maximum principal stress direction of the joints in copper mining area is NE direction and NW direction,among which Caledonian is the ore-conducting tectonic movement,Indosinian is the main ore-forming tectonic movement and Yanshanian is the main ore-breaking tectonic movement.Fry analysis was conducted on the Pb-Zn deposits(50),copper deposits(41)and gold deposits(34)with the largest number and most extensive distribution in the study area.It was found that Pb-Zn deposits were mainly distributed along the north-south direction,copper deposits along the northeast direction,and gold deposits along the north-south and NW directions.Based on the above analysis results,we predict 6 metallogenic target areas,it is speculated that the metallogenic possibility relationship is as follows: ?>?>?>?>?>?.