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研究了滇西保山地区二叠纪丁家寨组上部、永德组上部和沙子坡组浅水碳酸盐岩的骨屑颗粒组合和非骨屑颗粒组合特征,认为丁家寨组上部碳酸盐岩的骨屑颗粒组合属苔藓虫-棘皮组合,缺乏非骨屑颗粒;永德组和沙子坡组碳酸盐岩的骨屑颗粒组合为绿藻-有孔虫组合,后者发育非骨屑颗粒.通过与形成于不同纬度地区、大体同时的碳酸盐岩地层的骨屑颗粒组合的对比,认为丁家寨组碳酸盐岩为温凉水沉积环境成因,永德组和沙子坡组碳酸盐岩属暖水沉积环境成因.
The characteristics of the combination of bone debris particles and non-bone debris particles in the Upper Permian Dingjiazhai Formation, the upper part of Yongde Formation and the Shazipo Formation in the Baoshan area, western Yunnan, are studied. It is concluded that the Upper Carbonate The combination of bony particles in rocks is a combination of bryozoans and echinopsions, lacking non-bone debris particles. The combination of bone chips in carbonate rocks in Yongde and Shazilipo is green algae-foraminifera, By comparison with the combination of bone-gravel particles in carbonate rock formations formed in different latitudes and at the same time, it is considered that the Dingjiazhai Formation carbonate rocks are the genesis of the warm and cold water sedimentary environment, Acidite is a cause of warm water depositional environment.