重庆大佛岩铝土矿床地质特征、矿床成因及伴生矿产综合利用

doi:10.13278/j.cnki.jjuese.201504112

摘要/Abstract

摘要：

重庆大佛岩铝土矿床位于渝南黔北成矿带内.铝土矿含矿岩系分布在二叠系栖霞组灰岩或二叠系梁山组炭质页岩之下、志留系韩家店组粉砂质页岩或石炭系黄龙组灰岩之上,为一套含铝黏土岩组合,矿体一般在含矿岩系中部,平面上连续分布;矿石以土状和致密状铝土矿为主,含少量砾屑状和土豆状铝土矿;矿石矿物主要由硬水铝石组成,次为高岭石.通过对含矿岩系微量以及稀土元素的分析,认为重庆大佛岩铝土矿床主要是在弱酸性、氧化环境中形成的具陆相沉积特点的铝土矿床,铝土矿物源主要来自陆源;从含矿岩系中稀土元素与基底页岩中稀土元素相关系数、稀土元素配分模式曲线来看,成矿物质来源主要为下伏志留系韩家店组粉砂质页岩.大佛岩铝土矿床不仅具丰富的铝土矿资源,同时伴生有REO(rare earth oxides)、Ga、Sc、Li以及V等多种有益元素.铝土矿中伴生Ga、V等的综合利用可同主元素铝的利用结合起来,但REO、Sc、Li等因受到多方制约,目前尚无综合开发利用的可行性.因此在开发铝土矿的同时,开展伴生元素综合利用研究具有重要意义.

关键词: 铝土矿, 矿床地质, 形成环境, 物质来源, 伴生元素, 大佛岩

Abstract:

Dafoyan bauxite deposit in Chongqing is a large-scale accumulation type bauxite. As a part of south Chongqing to north Guizhou metallogenic belt, Dafoyan bauxite deposit is characterized by its continental sedimentary bauxite formed in an oxidizing environment. The source rock serie exist under Qixia Formation or Liangshan Formation of Permian and on Hanjiadian Formation of Silurian or Huanglong Formation of Carbonic, and it is a combination of aluminum containing clay rocks. The ore body is in the middle of the ore bearing rock series and distributes continuously. This study is not only based on the analysis to the original bauxite test data, but also the test of trace and rare earth elements content to make preliminary judgment of metallogenic environment and parent rock. The ore minerals are mainly composed of diaspore composition, and kaolinite secondarily. The average content are: Al₂O₃ 61.33%, SiO₂ 14.61%,A/S 4.20. Some trace elements are closed to or over the industrial tenor of comprehensive utilization, especially the contents of Ga and V. They can be used under the present technology. This suggestes that an attention should be paid to the associated elements so as to improve the latent economic value of bauxite.

Key words: bauxite, oregeology, formation environment, material source, associated elements, Dafoyan

中图分类号:

P618.45

赵晓东, 凌小明, 郭华, 李军敏. 重庆大佛岩铝土矿床地质特征、矿床成因及伴生矿产综合利用[J]. 吉林大学学报(地球科学版), 2015, 45(4): 1086-1097.

Zhao Xiaodong, Ling Xiaoming, Gua hua, Li Junmin. Geological Characteristics, Ore Genesis and Comprehensive Utilization of Coexisting of Dafoyan Bauxite Deposit in Chongqing[J]. Journal of Jilin University(Earth Science Edition), 2015, 45(4): 1086-1097.

参考文献

[1] 李军敏,陈莉,徐金沙,等.渝南大佛岩矿区铝土矿碎屑锆石中钪的赋存形式研究[J].沉积学报, 2013,31(4): 630-638. Li Junmin,Chen Li,Xu Jinsha, et al. Existing Form of Scandium in Detrital Zircon from Bauxite of the Dafoyan Mine,Southern Chongqing[J].Acta Sedimentologica Sinica, 2013,31(4): 630-638.

[2] 赵晓东,李军敏,王涛,等.重庆南川武隆铝土矿C、O同位素特征及其地质意义[J].金属矿山,2013(6):78-82. Zhao Xiaodong,Li Junmin,Wang Tao, et al.Carbon and Oxygen Isotope Characteristics of Nanchuan-Wulong Bauxite in Chongqing and Their Geological Significance[J].Metal Mine,2013(6):78-82.

[3] 陈阳,尹福光,李军敏,等.南川铝土矿沉积相特征[J].沉积与特提斯地质,2012,32(1):106-112. Chen Yang,Yin Fuguang,Li Junmin,et al.Sedimentary Facies Characteristics of the Nanchuan Bauxite Deposit[J].Sedimentary Geology and Tethyan Geology, 2012,32(1):106-112.

[4] 张启明,江新胜,秦建华,等,黔北-渝南地区梁山组的岩相古地理特征和铝土矿成矿效应[J].地质通报,2012,31(4):558-568. Zhang Qiming,Jiang Xinsheng,Qin Jianhua, et al.Lithofacies Palaeogeography of the Early Middle Permian Liangshan Formation in Northern Guizhou-Southern Chongqing Area and Its Bauxite Ore-Forming Effect[J].Geological Bulletin of China,2012,31(4):558-568.

[5] 丛源,赵鹏大,陈建平,等.中国铝土矿床品位吨位模型[J].吉林大学学报:地球科学版, 2009,39(6): 1042-1048. Cong Yuan,Zhao Pengda,Chen Jianping,et al. Grade-Tonnage Model of Bauxite Deposits in China[J].Journal of Jilin University:Earth Science Edition, 2009,39(6): 1042-1048.

[6] 潘桂堂,肖庆辉,陆松年,等.中国大地构造单元划分[J].中国地质,2009,36(1):1-28. Pan Guitang, Xiao Qinghui,Lu Songnian, et al. Subdivision of Tectonic Units in China[J].Geology in China, 2009,36(1):1-28.

[7] 李军敏,尹福光,陈阳,等.渝南大佛岩矿区铝土岩系炭质页岩孢粉组合特征及其意义[J].古生物学报, 2012,51(4):508-514. Li Junmin,Yin Fuguang,Chen Yang, et al.Characteristics and Significance of Spore-Polen Assemblage in Carbonaceous Shale in Bauxite Deposit of the Dafoyan Area, Southern Chongqing[J]. Acta Palaeontologica Sinica, 2012,51(4):508-514.

[8] 梁同荣.四川大佛岩及新华铝土矿床地质特征简介[J].矿床地质,1985,4(4):68-69. Liang Tongrong.Geological Characteristics of Dafoyan and Bauxite Deposit in Sichuan[J].Mineral Deposit,1985,4(4):68-69.

[9] 《矿产资源工业要求手册》编委会.矿产资源工业要求手册[M].北京:地质出版社,2010:217-280. Editorial Board of Mineral Industry Handbook.China Mineral Industry Handbook[M].Beijing:Geological Publishing House, 2010:217-280.

[10] Sun S S,MoDonough W F.Chemical and Isotopic Sy-stematics of Oceanic Basalts;Implications for Mantle Composition and Proceascs//Saun-ders A D,Norry M J.Magmatism in the Ocean Basins.London:Geology Society Special Publication,1989:313-345.

[11] 叶霖,潘自平,程曾涛.贵州修文小山坝铝土矿中镓等伴生元素分布规律研究[J].矿物学报, 2008,28(2):105-111. Ye Lin,Pan Ziping,Cheng Zengtao.The Regularities of Distribution of Associated Elements in Xiaoshanba Bauxite Deposit,GuiZhou[J].Acta Mineralogica Sinica,2008,28(2):105-111.

[12] 赵运发,元小卫,王智勇,等.山西铝土矿稀有稀土元素综合利用评价[J].世界有色金属,2004,6:35-37. Zhao Yunfa,Yuan Xiaowei,Wang Zhiyong, et al.Evaluation of Comprehensive Utilization of Rare Earth Elements[J].World Nonferrous Metals, 2004, 6:35-37.

[13] 王登红,李沛刚,屈文俊,等.贵州大竹园铝土矿中钨和锂的发现与综合评价[J].中国科学:地球科学,2013,43(1): 44-51. Wang Denghong, Li Peigang, Qu Wenjun, et al. Discovery and Preliminary Study of the High Tungsten and Lithium Contents in the Dazhuyuan Bauxite Deposit,Guizhou, China[J]. Science China: Earth Sciences, 2013,43(1): 44-51.

[14] 刘英俊.我国某些铝土矿中镓的若干地球化学特征[J].地质论评,1965,23(1):42-49. Liu Yingjun.Geochemical Features of Gallium in Bauxite in China[J].Geological Review,1965,23(1):42-49.

[15] 汤艳杰,刘建朝,贾建业.豫西铝土矿中镓的赋存状态研究[J].西安工程学院学报,2002,24(4):1-5. Tang Yanjie,Liu Jianchao,Jia Jianye.Study on Occurrence State of Galliun in the Bauxite Deposits of Western Henan Province[J].Journal of Earth Sciences and Environment, 2002,24(4):1-5.

[16] 赵晓东,李军敏,陈莉,等.重庆银矿垭口铝土矿床镓地球化学特征及成矿环境研究[J].沉积学报,2013,31(6):1022-1030. Zhao Xiaodong,Li Junmin,Chen Li, et al.Analysis on Gallium Geochemical Characteristics and Ore-Forming Environment of Bauxite Mine in Yinkuangyakou of Chongqing[J]. Acta Sedimentologica Sinica,2013,31(6):1022-1030.

[17] 杨军臣,王凤玲,李德胜,等.铝土矿中伴生稀有稀土元素赋存状态及走向查定[J].矿冶, 2004,13(2):89-92. Yang Junchen, Wang Fengling, Li Desheng, et al.Investigation on Occurrence and Trend of Rare and Rare-Earth Elements Associated in Bauxite[J].Mining & Metallurgy,2004,13(2):89-92.

[18] 刘平.再论贵州之铝土矿:从化学组份特征探讨后槽铝土矿物质来源[J].贵州地质,1991,8(4):313-321. Liu Ping.Another Discussion on Guizhou Bauxite Deposits:A Study of Houcao Bauxite Material Resources According to Chemical Composition Features[J].Guizhou Geology,1991,8(4):313-321.

[19] 章柏盛.微量元素对比在铝土矿成矿物质来源上的应用[J].轻金属,1987(3):1-4. Zhang Baisheng.Application of Mineral Sources of Trace Elements in Bauxite[J].Light Metals,1987(3):1-4.

[20] 朱志军,陈洪德.川东南地区志留系小河坝组砂岩特征及物源分析[J].吉林大学学报:地球科学版,2012,42(6): 1590-1600. Zhu Zhijun,Chen Hongde.Sandstone Characteristics and Provenance Analysis of the Sandstone in Silurian Xiaoheba Formation in Southeastern Sichuan Province,China[J]. Journal of Jilin University:Earth Science Edition, 2012,42(6): 1590-1600.

[21] 金中国,刘玲,黄智龙,等.贵州务正道地区铝土矿床稀土元素组成及地质意义[J].地质与勘探,2012,48(6):1067-1076. Jin Zhongguo,Liu Ling,Huang Zhilong, et al.REE Composition of the Bauxite Deposits in the Wuchuan-Zheng'an-Daozhen Area,Guizhou Province and Its Geological Significance[J].Geology and Exploration,2012,48(6):1067-1076.

[22] 刘宝珺.沉积岩石学[M].北京:地质出版社,1980:406. Liu Baojun.Sedimentary Petrology[M]. Beijing:Geological Publishing House,1980:406.

[23] 王中刚,于学元,赵振华,等.稀土元素地球化学[M].北京:科学出版社,1989:258-273. Wang Zhonggang, Yu Xueyuan,Zhao Zhenhua,et al. Rare Earth Element Geochemistry[M].Beijing: Science Press, 1989:258-273.

[24] 李军,桑树勋,林会喜,等.渤海湾盆地石炭二叠系稀土元素特征及其地质意义[J].沉积学报, 2007,25(4):589-596. Li Jun,Sang Shuxun,Lin Huixi, et al. REE Characteristics and Its Geological Significance of the Permo-Carboniferous in Bohaiwan Basin[J]. Acta Sedimentologica Sinica,2007,25(4):589-596.

[25] 腾格尔,刘文汇,徐永昌,等.缺氧环境及地球化学判识标志的探讨:以鄂尔多斯盆地为例[J].沉积学报,2004,22(2):365-372. Teng Geer,Liu Wenhui,Xu Yongchang, et al. The Discussion on Anoxic Environments and Its Geochemical Identifying Indices[J]. Acta Sedimentologica Sinica,2004,22(2):365-372.

Metrics

Viewed

Full text

Abstract

Cited

Shared

Discussed