REE Enrichment in Early Cambrian Gezhongwu Formation Phosphorous Rock Series in Sanjia, Zhijin County, Guizhou Province, China
来源期刊：JOURNAL OF RARE EARTHS2005年第6期
论文作者：Wang Qiang Yang Ruidong Bao Miao Gao Hui
Key words：REE; geochemistry; small shelly fossils; phosphorites; Cambrian;
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.
Wang Qiang1，Yang Ruidong1，Bao Miao1，Gao Hui1
(1.Graduate School, Guizhou University, Guiyang 550025, China)
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.
Key words:REE; geochemistry; small shelly fossils; phosphorites; Cambrian;
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