| 贵州织金新华含稀土磷矿床稀土元素地球化学及生物成矿基本特征 |
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| 引用本文： | 张杰,张覃,陈代良. 贵州织金新华含稀土磷矿床稀土元素地球化学及生物成矿基本特征[J]. 矿物岩石, 2003, 23(3): 35-38 |
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| 作者姓名： | 张杰 张覃 陈代良 |
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| 作者单位： | 1. 贵州工业大学资源与环境学院,贵州,贵阳,550003
2. 贵州化工地质勘察院,贵州,遵义,563000 |
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| 基金项目： | 国家自然科学基金项目(批准号:50164001)资助 |
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| 摘 要： | 对贵州织金新华含稀土磷矿床进行的稀土元素及微量元素分析结果表明，磷块岩中普遍富集稀土元素，稀土总量∑REE较高，并富集Y元素及La，Nd等轻稀土元素。LREE／HREE比值较高。含稀土磷块岩普遍具Ce负异常，显示其对源区的继承性。指示成磷环境处于氧化程度相对较高状态。稀土元素球粒陨石标准化模式曲线、北美页岩标准化模式曲线、Ce元素异常、LREE／HREE比值、微量元素特征及岩石矿物特征表明，织金新华含稀土磷矿床具以正常海相生物-化学沉积等为主伴有海相热水沉积混合成因的特征。在磷矿成矿过程中沉积物沉积时，活体生物及死亡残骸不同程度地摄取和富集了La，Nd，Ce等稀土元素、Y元素及其他微量元素，沉积在含磷层位，构成大量的含稀土、含生物碎屑白云质磷块岩。
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| 关 键 词： | 稀土元素 生物成矿 含稀土磷块岩 贵州 磷矿床 元素地球化学 |
| 文章编号： | 1001-6872(2003)03-0035-04 |
| 修稿时间： | 2003-01-20 |
REE GEOCHEMISTRY OF THE ORE-BEARING REE IN XINHUA PHOSPHORITE ,ZHIJIN ,GUIZHOU |
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| ZHANG Jie,ZHANG Qin,CHEN Dai-liang .College of Resources and Eenvironment,Guizhui University of Industry,Guiyang,China, .GuiZhou Geological Survey Academy. Ministry of Chemical Industry,ZunYi,China. REE GEOCHEMISTRY OF THE ORE-BEARING REE IN XINHUA PHOSPHORITE ,ZHIJIN ,GUIZHOU[J]. Journal of Mineralogy and Petrology, 2003, 23(3): 35-38 |
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| Authors: | ZHANG Jie ZHANG Qin CHEN Dai-liang .College of Resources Eenvironment Guizhui University of Industry Guiyang China .GuiZhou Geological Survey Academy. Ministry of Chemical Industry ZunYi China |
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| Affiliation: | ZHANG Jie~1,ZHANG Qin~1,CHEN Dai-liang~2 1.College of Resources and Eenvironment,Guizhui University of Industry,Guiyang550003,China, 2.GuiZhou Geological Survey Academy. Ministry of Chemical Industry,ZunYi563100,China |
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| Abstract: | The REE and compsition of trace element analysis show that phosphorite-ores are rich in REE in Xinhua.The phosphorite has abundant Y,La,Nd-elements and the LREE/HREE ratio is higher in ore-depsit and lower on top of roof rock.The Ce anomaly indicate a high oxidation environment and inheritance of orginal region.REE patterns of chondrite-normailzed and NASC-normalized Ce anomaly,LREE/HREE ritio,characteristic trace elements and mineral rock showed that the deposit is characterized by biochemical sediments and mixture of hot seawater sedimentation. This paper discussed the character and regularity of migration and concentration in the oxidizedorebody of the phosphorite in Xinhua. |
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| Keywords: | REE-element biology forming-ore deposit contain-REE-element phosphorites Xinhua Zhijin Guizhou |
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