The Study Of Ore-forming Geological Background Analysis,Fengqin,Yunnan

The study area is located between the mainland of gondwana and Laurasia,changning-menglian belt,wd whice is one part of baoshan in yunnan province.The research district spans the eastern edge of mainland of gondwana(banshan-zhenkang belt),the western border of the Laurasiat mainland(Yangtze platform).Changning-meng lian band is an important part of the "sanjiang" tectonic belt,which is an important unit of the tethys tectonic domain.In the study area,the rocks of the magmatic rocks,which were found in the paleotethys tectonic domain,were represented by the mineralogy,which was obviously controlled by fracture.From the type of magmatic rock,The magmatic rocks in the area are dominated by Monzonitic granite and diorite,and the second is quartz diorite and granodiorite.Multiple metal mineralization points and mineral points are found in this rock distribution area.The volcanic rock is found in the area of baoshan-zhenkang belt and cangning-mnenglian belt,it is distribution like north-south area.In the basalt of woniushi,there are many Cu mines.The sedimentary rocks were foud three stratigraphic area(langcang shidian genma).Clastic rock contain terrigenous clastic,it is mainly composed of quartz and contains a small amount of volcanic debris and sandstone debris.A large number of metallogenetic elements are initially enriched in the clastic rock.With the late hydrothermal superposition can form the deposit.The study area contain Magmatic rocks building Volcanic rocks building Metamorphic rocks building and Clastic rock building.The molybdenite/copper mine/quentzite ore were found in the Magmatic rocks building,Lead-zinc mine were found in the Volcanic rocks building,copper mine was also found in the Metamorphic rocks,the gold mine an coal mine were found in the clastic rock building.It is prove that the mine formed with the building.At last we summarize the controlling factors in the research area,stratum structure and magmatic rocks is the main factors about the formation and distribution.Finally will in order to obtain the research data of comprehensive comparison and analysis of the rock,tectonic units,ore-controlling factors,magmatic rocks,the favorable factors,marking out into a mining area: qimulin lead-zinc mine,tiantou village copper mine area,zijiazai molybdenite.