ANALYSIS ON GEOLOGICAL CHARACTERISTICS AND SEDIMENTARY ENVIRONMENT OF THE HONGPO PHOSPHATE DEPOSIT IN HUANING,YUNNAN
The Hongpo phosphate deposit in Huaning is layered in the third member of the Lower Cambrian Yuhucun Formation.The ore industrial type is simple,mainly siliceous and silicate type,followed by mixed type.The ore grade of the surface and shallow part is distributed from Ⅰ+Ⅱ to Ⅲ+Ⅳ in the vertical direction.And the ore grade in the deep part is generally distributed from Ⅲ to Ⅰ+Ⅱ to Ⅲ.The non-ore part of the ore-bearing layer is mostly distributed above and below the industrial ore body,and the industrial ore body(grade Ⅰ-Ⅲ)is vertically continuous and stable.It is an Early Cambrian marine sedimentary layered phosphorite deposit.
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