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息烽磷矿是黔中元古代震旦纪陡山沱期磷块岩矿床的重要组成部分.矿层厚而稳定,品位高、露采.在野外勘探工作的基础上着重探讨磷块岩的富集成矿规律.“,”The phosphorus reserves in Xifeng are a main composition of phosphorus rock deposit formed during the Sinian Period in the center of Guizhou. After years of field working,the writer paid much attention to the mineral forming regularity of phosphorus rock and got some conclusions.