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利用双目实体显微镜从贵州早寒武世早期的织金新华、铜仁坝黄以及遵义松林等不同沉积环境的磷块岩中挑选出白云石单矿物和小壳动物化石,进行等离子质谱分析(ICP-MS),再结合扫描电镜及能谱(SEM-EDX)、偏光显微镜观察等手段,对磷块岩中稀土元素的赋存状态及分布规律进行了深入研究,认为稀土元素的富集与成磷环境关系不密切,与含磷岩系厚度及矿层厚度不成正比关系;在同一含磷岩系中稀土元素总量表现为下部低上部高;主要伴生矿物白云石、粘土矿物、硅质矿物中REE含量都较低,稀土含量与小壳生物化石含量的关系也不明显,而与碳氟磷灰石矿物含量呈显著的正相关,稀土元素主要以类质同象形式赋存于碳氟磷灰石晶格中。
Dolomite mono-mineral and crustacean fossils were selected from phosphate rocks of different depositional environments, such as Zhijin Xinhua, Tongrenbahuang, and Zunyi pine forests in the early Precambrian period of Guizhou Province by using a binocular microscope, and analyzed by ICP-MS (ICP -MS), combined with the SEM and EDX (SEM-EDX), polarized light microscopy observation and other means of rare earth elements in phosphate rock in the occurrence and distribution of in-depth study that the enrichment of rare earth elements and into Phosphorus environment is not closely related with the thickness of the rock and phosphorus bearing rock thickness is not proportional to the thickness of the same rare earth elements in the same rare earth elements in the lower part of the lower high; mainly associated minerals dolomite, clay minerals, siliceous minerals REE content is low, the relationship between rare earth content and small shell fossil content is not obvious, but with the content of Fluoride apatite minerals showed a significant positive correlation, the rare earth elements mainly exist in isoforms in the form of fluorocarbon Graystone lattice.