| REE Enrichment in Early Cambrian Gezhongwu Formation Phosphorous Rock Series in Sanjia, Zhijin County, Guizhou Province, China |
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| 引用本文： | 杨瑞东 高慧 王强 鲍淼. REE Enrichment in Early Cambrian Gezhongwu Formation Phosphorous Rock Series in Sanjia, Zhijin County, Guizhou Province, China[J]. 中国稀土学报(英文版), 2005, 23(6): 760-767 |
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| 作者姓名： | 杨瑞东 高慧 王强 鲍淼 |
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| 作者单位： | Graduate School, Guizhou University, Guiyang 550023, China |
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| 基金项目： | 国家重点基础研究发展计划(973计划)，中国科学院资助项目，Guizhou Provincial Excellent Talent Foundation，中国博士后科学基金，Guizhou Provincial President's Funds |
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| 摘 要： | The phosphorus-bearing rock series at the bottomof the Cambrian Systemin Guizhou was characterizedby REE enrichment.Among REE,Yis most abun-dant,accounting for35%~40%of the total REE.Generally,the Y-group REEs account for45%~59%of the total amount;the contents of the Ce-groupREEs are slightly higher than those of the Y-groupREEs,accounting for54.4%.With the exception ofmonazite which is occasionally seen,no independentREE mineral has beenfound.The enrichment rates ofΣREE2O3and Y…
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| 关 键 词： | 寒武纪 贵州 稀土 地球化学 磷灰岩 富集 |
| 文章编号： | 1002-0721（2005）06-0760-08 |
| 收稿时间： | 2005-07-27 |
| 修稿时间： | 2005-08-20 |
REE Enrichment in Early Cambrian Gezhongwu Formation Phosphorous Rock Series in Sanjia, Zhijin County, Guizhou Province, China |
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| Yang Ruidong,Gao Hui,Wang Qiang,Bao Miao. REE Enrichment in Early Cambrian Gezhongwu Formation Phosphorous Rock Series in Sanjia, Zhijin County, Guizhou Province, China[J]. Journal of Rare Earths, 2005, 23(6): 760-767 |
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| Authors: | Yang Ruidong Gao Hui Wang Qiang Bao Miao |
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| Abstract: | Phosphate concretions from the Gezhongwu Formation at Sanjia, Zhijin County, China, were studied systematically in this work. In terms of the rules of variation of REE, trace elements, major elements and oxides, in combination with the concentration characteristics of small shelly fossils, it is considered that small shelly fossils occurring at the bottom of the Cambrian System contribute a lot to the phosphate concretions and that there are two stages of REE and phosphorus minerogenesis. The phosphate concretions have a good correlation with the contents of REE and phosphorus rather than the abundance of small shelly fossils. |
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| Keywords: | REE geochemistry small shelly fossils phosphorites Cambrian |
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