【摘要】 滇东地区存在两套含磷岩系、十个磷块岩层位 ,可归纳为三类成因、四个工业磷矿层 ,进一步划分为四个沉积阶段、四个工业磷矿床成矿区。其中 ,研究较深的中谊村段磷矿 ,是由成矿地质背景和环境因素控制的八种主要成矿作用和四个成矿富集阶段多重反复叠加形成的生物沉积磷块岩矿床更多还原

【Abstract】 There are 4 industrial P deposits Ⅰ,Ⅴ,Ⅵ,Ⅸ and 4 sedimentation stsges early, midle, late, posterior of the 10 phosphorite layers in the 2 P bearing rock series of upper part of Upper Sinian lower part of Lower Cambrian and lower part of Middle Devonian in the east Yunnan. They include 3 genetic types of biogenic deposit, deposit reformation and weathering leaching, which can be divided into 4 mineralization areas of industrial P deposit, ie, northeast Yunnan, Huize Xundian, Dianchi Lake Fuxian Lake and southeast Yunnan. The phosphate deposit in Zhongyicun Member belongs to the biogenic deposit type, which was formed by the multiple and repeated superimposition of 8 types of main mineralization and 4 enrichment stages controlled by the geological setting and environ mental factors.更多还原