Yiliang County Of Yunnan Province Fuzhan Phosphorite Area Geological Characteristics And Metallogenic Regularity Of The Deposit

The work area is located the Northern of Yiliang-Huaning metallogenic belt in Dianchi District metallogenic provinc,The ore belt is rich in phosphate rock resources,has Kunyang Phosphate,Jinning phosphate,Anning phosphate,Dalongshan phosphate,Duigeshan phosphate etc.large and medium phosphorus deposit,Through the completion of the terrain geological survey,geophysical prospecting,drilling and Mountain Engineering,geological laboratory analysis and testing work etc.,Geological characteristics and metallogenic regularity of phosphorus deposits.The faults development and Fold agensis in mining area,The faults are Brittle fault.Affected by the NE-SW direction faults in the region,The secondary faults,folds and joints were developed.Phosphorus layer for the lower Cambrian is the third of Yuhucun formation(?1y3).Thickness between 1.50 ~ 12.43 m,the whole layer has one layer of ore body,the main mineral are III and II grade,dip 3 to 42 degrees.The Ore texture psammatic structure and colloidal structure,Ore structure is massive and banded structure.The industrial type of oxidized zone is mainly siliceous and silicate,the primary zone is mainly mixed type and a little carbonate type.The ore processing technology is better performance,the phosphate rock has a great development value.The formation of regional phosphate rock is influenced by the paleo structure,paleogeography and sedimentary environment,the source of phosphorus and paleoclimate,the metallogenic belt is a region rich in phosphorus,with a stable "siliceous rock-phosphate rock-carbonate" lithofacies combination,this kind of strata strictly controls the distribution of phosphate rock,it is mainly composed of dark grey and black sandstone containing phosphorus phosphate rocks,trong mineralization and medium thickness,has a stable phosphate rock.In combination with the characteristics of phosphorus horizon,Yiliang Huaning metallogenic belt of Northwest-stable ore body thickness is stable-relatively stable,P2O5 content uniform-relatively uniform,along the ore body to the south and the West tend to have good prospects for ore prospecting.