| 云南东川雪岭磷矿地质特征与成因探讨 |
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| 引用本文： | 刘文恒,刘继顺,罗江华,马慧英,许亚男.云南东川雪岭磷矿地质特征与成因探讨[J].地质找矿论丛,2014,29(2):254-261. |
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| 作者姓名： | 刘文恒 刘继顺 罗江华 马慧英 许亚男 |
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| 作者单位： | [1]中南大学有色金属成矿预测教育部重点实验室,长沙410083; [2]中南大学地球科学与信息物理学院,长沙410083; [3]云南驰宏锌锗股份有限公司,云南曲靖655000; [4]湖南省地质调查院,长沙410000; [5]东华理工大学研究生院,南昌330013 |
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| 摘 要： | 雪岭磷矿处于东川断隆与禄劝断坳接合部,为一浅海相沉积层状磷块岩矿床。磷矿主要赋存在下寒武统渔户村组一段,岩性为胶磷矿磷块岩、含磷白云岩、含磷泥质粉砂岩、含磷粉砂质泥岩及含磷白云质灰岩。矿石矿物主要为胶磷矿,脉石矿物主要为白云石和少量硅质、粉砂质泥质物;矿石化学成分主要为P2O5,CaO,MgO,SiO2,F,酸不溶物。矿石结构主要为不同粒级的颗粒胶结结构,构造以条带状构造为主,以及少量的块状构造。矿床成因属于早寒武世时期海侵背景下磷质随上升洋流在扬子地台沉积所致,后期的风化作用导致了磷质的进一步富集。
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| 关 键 词： | 雪岭磷矿 地质特征 矿床成因 云南东川 |
| 收稿时间： | 2013/5/9 0:00:00 |
| 修稿时间： | 2013/8/22 0:00:00 |
Geological characteristics and genesis of Xueling phosphorite deposit in Dongchuan area,Yunnan province |
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| LIU Wenheng,LIU Jishun,LUO Jianghu,MA Huiying and XU Yanan.Geological characteristics and genesis of Xueling phosphorite deposit in Dongchuan area,Yunnan province[J].Contributions to Geology and Mineral Resources Research,2014,29(2):254-261. |
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| Authors: | LIU Wenheng LIU Jishun LUO Jianghu MA Huiying and XU Yanan |
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| Institution: | LIU Wenheng, LIU Jishun, LUO Jianghua, MA Huiying, XU Yanan (1. Key Laboratory of Metallogenic Prediction of Nonferrous Metals ,Ministry of Central South University, Changsha 410083, China 2. School of Geoseiences and In f o-Physics , Central South University, Changsha 410083, China 3. Yunnan Chihong Zn Ge Co. Ltd,Qujing 655000 ,Yunnan, China 4. Hunan Geologic Survey Institute, Changsha, 410000, China 5. Graduate School, East China Institute of Technology, Nanchang 330013, China) |
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| Abstract: | Xueling Phosphorite deposit is a sedimentary deposit located at joint of Dongchuan fault-uplift and Luquan fault-depress.The phosphorite occurrs in Lower Cambrian Member ∈ 1 y1 of Yuhucun Formation including collophane-bearing phosphorite,phosphorus-bearing dolostone,phosphorus-bearing lutaceous siltstone,phosphorus-bearing silty mudstone and phosphorus-bearing dolomitic limestone.Collophane is the main ore mineral,dolomite gangue mineral and mainly are and a little siliceous,silt,argillaceous materials impurities.P2O5,CaO,MgO,SiO2,F,insolubles in acid are the main composition of the ore.Cementation of variously-sized grains is the main texture and banding the main structure and massive structure a little.Genetically it is a sedimentary deposit enriched by late weathering process. |
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| Keywords: | Xueling phosphorite deposit geological characteristics genesis Dongchuan Yunnan province |
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