Study on geological characteristics and mineralization of fluorite deposit in the Mangling rock mass of the north Qinling metallogenic belt
The tectonic structure of the Mangling rock mass located in the northern Qinling tectonic belt of the Qinling composite continental orogenic belt,which belongs to the northern Qinling Muhuguan-Mangling Yanshanian iron-copper-molybdenum-tungsten-lead-zinc fluorite metallogenic belt.On the basis of summari-zing the geological characteristics of fluorite deposit in Mangling rock mass,this paper analyzes the charac-teristics of ore-controlling factors,ore mineral assemblage and wall rock alteration.The results show that the fluorite ore bodies in this area are mainly produced in porphyritic biotite monzonitic granite of Mangling rock mass in Yanshan period,which are strictly controlled by fault structure and distributed in near SN di-rection,NNE direction and NWW direction.The ore types are fluorite-granite type,fluorite-quartz-granite type,fluorite-quartz type,fluorite type rich ore,etc.The fluorite veins have obvious zoning and have the characteristics of multi-stage composite mineralization.The genetic type of the deposit is a medium-low tem-perature hydrothermal filling vein fluorite deposit.
fluorite depositgeological characteristicsmineralizationthe Mangling rock massthe north Qin-ling metallogenic belt