Mesozoic Ore-controlling Structure Characteristics In The Tongling Region Based On Three-Dimensional Geological Models Of Yaojialing Cu-Pb-Zn Deposit

Tongling ore cluster area is very representative of the scale of copper andcomplexity of mineralization in the middle and lower reaches of the YangtzeRiver metallogenic belt. The paper analysis of the region was sufferedtectonism since the Mesozoic in the two aspects of tectonic stress fieldanalysis and three-Dimensional geological models.Tectonic stress field tracefigure shows that the area has two principal stress direction of nearly NS andEW trending, Corresponding to the Indosinian and early Himalayan tectonicmovement. By collecting and analyzing the actual exploration data ofYaojialing Cu-Pb-Zn deposit, Using Surpac3D modeling software build thegeological database about the deep space position data of the ore body andsurrounding rock in Yaojialing deposit, and using the interpolation methodassisted modeling. Finally, building the three-dimensional model of the orebody and surrounding rock.The3D structure models show that theore-controlling structure of Yao Jialing Cu-Pb-Zn deposits has obviously beennearly vertical to each other tectonic stress of nearly NS and EW trending.Superficial and deep phenomena reflect that the two tectonic stress directionrecorded the tectonic regime transition process between Tethys and Pacifictectonic regime. Note-type mineralization can be found within the structuralknots of the Middle and Lower Reaches of Yangtze River. It provides thereference for mineral exploration at depths in the Tongling ore concentrationareas.