Skarn Type Iron Copper Gold Metallogenic Regularity And Prospecting Direction In Sanpu Area, Suixi County, Anhui Province

Sanpu area is located in the north of Anhui Province, which belong to Suixicounty of Huaibei city and Yongqiao District of Suzhou City, whose surface iscovered with Cenozoic loose sediments. The area is located in the polymetalmetallogenic belt of the south of Liguo of Xuzhou city and sanpu of Huaibei city,whose mineralization conditions is good, mineral resources is rich, so it ismeaningful to carry out the prospecting research work in this coverage area.Skarn deposits is similar to "Hanxing type" iron metallogenic geologicalbackground in the North China block, but the difference between them is obviouslyin terms of generation of geological environment and geological and geochemicalcharacteristics.The host rock of this area is carbonate rocks of the Cambrian rich inmagnesium, but "Hanxing type" iron ore rock is lower Ordovician rocks. At present,the region has been found4small and medium sized gold deposit of magnesiumskarn type,which reached a large scale,whose total gold reserves is22tons.Complex rock mass in sanpu is mainly composed of early intrusive body andmiddle period. The early intrusive body is quartz diorite (porphyry) rocks, and themiddle is granodiorite. The edge of early invasive of the quartz diorite porphyrite isrelated with the deposit in the area in formation, quartz diorite porphyrite andmiddle-upper Cambrian carbonate rocks is often formed skarn Fe-Cu polymetallicdeposit of gold near the contact zone.This deposit is strictly controlled by strata, magmatic rocks and tectonic, thebodies are mainly formed in the small anticline and its pitching end, the turning point,the rock crack in layer or interlayer collapse locations, the rock contact zone and thecontact zone of the xenoliths.The data under the microscope and electron probe shows that gold in this regionis mainly clearance of gold, also include inclusion gold and fissure gold. The gold ismainly present as independent minerals, silver, gold and silver ore deposit located inthe gangue minerals in intergranular fracture, which mainly is natural gold. Gold andsilver minerals is close related to bornite in formation in early period.Based on the study in the relationship between strata, structure, magmatic rocksand deposits which is known in geophysical field characteristics and mineralization,this paper has summed up the ore-controlling factors and metallogenic regularity inthis area, and pointed out the prospecting marks. Make geological survey andgeophysical survey work in the good region of the metallogenic geological condition area in sanpu, we could circle the three prospecting target areas, rwhich isguzaodui,houchangjia and sanpu, which will provide a reliable basis in search fordeep concealed deposits in this aera.