Longlou Rock Petrographic Characteristics and Division of Metallogenic Epoch and Stage of Mineralization of Funing in Yunnan

Funing rock mass from the edge to the center is the high density of diabase phase,a fine-grained olive gabbro norite facies,the middle fine-grained gabbro norite facies the middle fine-grained hillock grain gabbro phase,the middle coarse-grained in the gang wen diorite phase.The native rock of copper and nickel ore deposit in the studied area is consisted of basic –ultrabasic magmatic rock,which has a good differentiation phenomenon.The silicate minerals in Nonglou copper nickel deposit are mainly olivine and pyroxene,a small amount of plagioclase and hornblende,very small amount of mica,calcite.The metal sulfides are pyrrhotite,pentlandite,chalcopyrite,magnetite,also contains a small amount of ilmenite and galena.Combined with ore mineral combination and output structure,orebody characteristics,ore deposit formation mainly experienced magmatic ore-forming period-structure-metamorphic hydrothermal mineralization period,and magmatic ore-forming period is divided into early magmatic liquation-crystallization differentiation stage-late magmatic metallogenic stages-ore pulp injection metallogenic stages-magmatic ore-forming period after hydrothermal metallogenic stages.The form of deposit experienced from magmatic liquation-crystallization differentiation stage to the late hydrothermal superimposed period.