GEOCHEMICAL CHARACTERISTICS OF THE GONGYI BAUXITE DEPOSIT IN HENAN PROVINCE
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摘要:
龙门-巩义地区是河南省铝土矿成矿带之一. 通过对巩义铝土矿主要成分化学测试, 研究分析铝土矿床化学元素变化规律. 结果表明: 铝土矿矿石主要矿物成分为一水硬铝石(含量45%~95%), 其次为高岭石、伊利石等(含量4%~25%), 含少量菱铁矿、黄铁矿、方解石、白云石等, 微量矿物有锆石、磷灰石等. 矿石的主要化学成分为Al2O3、SiO2、Fe2O3、TiO2、S, 共占总成分的83.42%. 其中, Al2O3含量40.46%~77.59%, 平均60.68%; SiO2 1.00%~29.54%, 平均14.07%;铝硅比值(A/S)1.8~65.1, 平均4.3. 在不同埋深条件下, 相对深度越大, Al2O3的含量值及A/S值相对越大. 该区域的化学风化指数(CIA)值可达到91.16, 指示本区含铝岩系遭受了强烈的化学风化作用.
Abstract:Longmen-Gongyi area is one of the bauxite metallogenic belts in Henan Province. Based on chemical test of the main compositions of Gongyi bauxite deposit, the paper analyzes the change rule of elements in the bauxite deposit. The results show that the major mineral compositions of bauxite ore is diaspore(45%-95%), followed by kaolinite and illite(4%-25%), with a small amount of siderite, pyrite, calcite and dolomite, and trace minerals such as zircon and apatite. The main chemical compositions of bauxite ore are Al2O3, SiO2, Fe2O3, TiO2 and S, accounting for 83.42% of the total, among which the Al2O3 content is 40.46%-77.59%, averagely 60.68%, SiO2 1.00%-29.54%, averagely 14.07%, with the aluminum-silicon ratio (A/S) of 1.8-65.1, averagely 4.3. Under different burial depth conditions, the larger the relative depth is, the larger the Al2O3 content and A/S ratio are. The chemical index of alteration (CIA) of the area is up to 91.16, indicating that the aluminum-bearing rock series in the area has undergone intense chemical weathering.
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Key words:
- bauxite /
- chemical weathering index /
- diaspore /
- A/S ratio /
- Henan Province
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表 1 铝土矿化学成分含量统计表
Table 1. Statistics of chemical composition contents of bauxite
成分 Al2O3 SiO2 Fe2O3 TiO2 S CaO MgO K2O Na2O Loss A/S 最高 77.59 29.54 21.75 5.34 15.53 10.27 1.05 5.07 0.20 27.87 65.1 最低 40.46 1.00 0.39 0.96 0.02 0.17 0.10 0.41 0.03 9.09 1.8 平均 60.68 14.07 3.66 3.06 1.95 1.41 0.51 2.18 0.11 13.66 4.3 含量单位：%. 
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[1] 高兰, 王登红, 熊晓云, 等. 中国铝土矿资源特征及潜力分析[J]. 中国地质, 2015, 42(4): 853-863. doi: 10.3969/j.issn.1000-3657.2015.04.005
Gao L, Wang D H, Xiong X Y, et al. Minerogenetic characteristics and resource potential analysis of bauxite in China[J]. Geology in China, 2015, 42(4): 853-863. doi: 10.3969/j.issn.1000-3657.2015.04.005
[2] 廖士范, 梁同荣. 中国铝土矿地质学[M]. 贵阳: 贵州科技出版社, 1991: 1-126.
Liao S F, Liang T R. Bauxite geology of China[M]. Guiyang: Guizhou Science and Technology Publishing House, 1991: 1-126.
[3] 王庆飞, 邓军, 刘学飞, 等. 铝土矿地质与成因研究进展[J]. 地质与勘探, 2012, 48(3): 430-448. https://www.cnki.com.cn/Article/CJFDTOTAL-DZKT201203003.htm
Wang Q F, Deng J, Liu X F, et al. Review on research of bauxite geology and genesis in China[J]. Geology and Exploration, 2012, 48(3): 430-448. https://www.cnki.com.cn/Article/CJFDTOTAL-DZKT201203003.htm
[4] 刘学飞, 王庆飞, 李中明, 等. 河南铝土矿矿物成因及其演化序列[J]. 地质与勘探, 2012, 48(3): 449-459. https://www.cnki.com.cn/Article/CJFDTOTAL-DZKT201203004.htm
Liu X F, Wang Q F, Li Z M, et al. Mineral genesis and evolutionary sequence of the bauxite deposits in Henan Province[J]. Geology and Exploration, 2012, 48(3): 449-459. https://www.cnki.com.cn/Article/CJFDTOTAL-DZKT201203004.htm
[5] 吴煜, 夏炎, 王振强, 等. 河南伊川石佛寺铝土矿地质特征及控矿因素[J]. 地质与资源, 2022, 31(1): 38-46. http://manu25.magtech.com.cn/Jweb_dzyzy/CN/abstract/abstract10362.shtml
Wu Y, Xia Y, Wang Z Q, et al. Geological characteristics and ore-controlling factors of Shifosi bauxite deposit in Yichuan County, Henan Province[J]. Geology and Resources, 2022, 31(1): 38-46. http://manu25.magtech.com.cn/Jweb_dzyzy/CN/abstract/abstract10362.shtml
[6] 席善峰, 欧阳兆灼, 李建全, 等. 河南省三门峡铝土矿地质特征及控矿条件研究[J]. 地质与资源, 2019, 28(4): 339-344. doi: 10.3969/j.issn.1671-1947.2019.04.005
Xi S F, Ouyang Z Z, Li J Q, et al. Study on the geology and ore-controlling conditions of the bauxite deposits in Sanmenxia area, Henan Province[J]. Geology and Resources, 2019, 28(4): 339-344. doi: 10.3969/j.issn.1671-1947.2019.04.005
[7] 高兰, 王登红, 熊晓云, 等. 中国铝矿成矿规律概要[J]. 地质学报, 2014, 88(12): 2284-2295. https://www.cnki.com.cn/Article/CJFDTOTAL-DZXE201412010.htm
Gao L, Wang D H, Xiong X Y, et al. Summary on aluminum ore deposits minerogenetic regulation in China[J]. Acta Geologica Sinica, 2014, 88(12): 2284-2295. https://www.cnki.com.cn/Article/CJFDTOTAL-DZXE201412010.htm
[8] 张海坤, 胡鹏, 姜军胜, 等. 铝土矿分布特点、主要类型与勘查开发现状[J]. 中国地质, 2021, 48(1): 68-81. https://www.cnki.com.cn/Article/CJFDTOTAL-DIZI202101006.htm
Zhang H K, Hu P, Jiang J S, et al. Distribution, genetic types and current situation of exploration and development of bauxite resources[J]. Geology in China, 2021, 48(1): 68-81. https://www.cnki.com.cn/Article/CJFDTOTAL-DIZI202101006.htm
[9] 曹高社, 刘凌之, 邢舟, 等. 河南省巩义地区本溪组铝土矿成矿物质来源——来自碎屑锆石LA-ICP-MS U-Pb年龄的证据[J]. 河南理工大学学报(自然科学版), 2018, 37(6): 55-65. https://www.cnki.com.cn/Article/CJFDTOTAL-JGXB201806008.htm
Cao G S, Liu L Z, Xing Z, et al. Material sources analysis of karstic bauxite of Benxi Formation in Gongyi area, Henan Province: Evidences from LA-ICP-MS U-Pb dating of detrital zircons[J]. Journal of Henan Polytechnic University (Natural Science), 2018, 37(6): 55-65. https://www.cnki.com.cn/Article/CJFDTOTAL-JGXB201806008.htm
[10] Bárdossy G. Karst bauxites: Bauxite deposits on carbonate rocks[M]. New York: Elsevier Scientific Publishing Company, 1982: 1-441.
[11] D'Argenio B, Mindszenty A. Bauxites and related paleokarst: Tectonic and climatic event markers at regional unconformities[J]. Eclogae Geologicae Helvetiae, 1995, 88(3): 453-499.
[12] 杜远生, 余文超. 沉积型铝土矿的陆表淋滤成矿作用: 兼论铝土矿床的成因分类[J]. 古地理学报, 2020, 22(5): 812-826. https://www.cnki.com.cn/Article/CJFDTOTAL-GDLX202005002.htm
Du Y S, Yu W C. Subaerial leaching process of sedimentary bauxite and the discussion on classifications of bauxite deposits[J]. Journal of Palaeogeography (Chinese Edition), 2020, 22(5): 812-826. https://www.cnki.com.cn/Article/CJFDTOTAL-GDLX202005002.htm
[13] 谢小芳. 巩义市涉村铝土矿地质特征及矿床成因[J]. 内蒙古科技与经济, 2015(12): 62-63. https://www.cnki.com.cn/Article/CJFDTOTAL-NMKJ201512030.htm
Xie X F. Geological characteristics and genesis of Shecun bauxite deposit in Gongyi City[J]. Inner Mongolia Science Technology & Economy, 2015(12): 62-63. (in?Chinese https://www.cnki.com.cn/Article/CJFDTOTAL-NMKJ201512030.htm
[14] 周云荣, 李建全. 河南省偃龙铝土矿床晚石炭世古地理特征及其对铝土矿的控矿意义[J]. 地质与资源, 2019, 28(3): 254-259. doi: 10.3969/j.issn.1671-1947.2019.03.006
Zhou Y R, Li J Q. Late carboniferous paleogeography of the Yanlong bauxite deposit in Henan Province: Ore-controlling significance[J]. Geology and Resources, 2019, 28(3): 254-259. doi: 10.3969/j.issn.1671-1947.2019.03.006
[15] 胡盛, 李科花, 杨持恒, 等. 河南省"煤下铝"矿床成因及找矿方法研究[J]. 中国煤炭地质, 2021, 33(10): 85-88. https://www.cnki.com.cn/Article/CJFDTOTAL-ZGMT202110015.htm
Hu S, Li K H, Yang C H, et al. Study on genesis and prospecting method of aluminum deposit under coal in Henan Province[J]. Coal Geology of China, 2021, 33(10): 85-88. https://www.cnki.com.cn/Article/CJFDTOTAL-ZGMT202110015.htm
[16] 肖益林, 黄建, 刘磊, 等. 金红石: 重要的地球化学"信息库"[J]. 岩石学报, 2011, 27(2): 398-416. https://www.cnki.com.cn/Article/CJFDTOTAL-YSXB201102005.htm
Xiao Y L, Huang J, Liu L, et al. Rutile: An important "reservoir" for geochemical information[J]. Acta Petrologica Sinica, 2011, 27(2): 398-416. https://www.cnki.com.cn/Article/CJFDTOTAL-YSXB201102005.htm
[17] 王天顺, 付勇, 何伟, 等. 中国铝土矿碎屑锆石记录与物质来源分析[J]. 矿物学报, 2021, 41(4/5): 558-569. https://www.cnki.com.cn/Article/CJFDTOTAL-KWXB2021Z1017.htm
Wang T S, Fu Y, He W, et al. Detrital zircon records and material source analysis of bauxite deposits in China: A review[J]. Acta Mineralogica Sinica, 2021, 41(4/5): 558-569. https://www.cnki.com.cn/Article/CJFDTOTAL-KWXB2021Z1017.htm
[18] Nesbitt H W, Young G W. Early Proterozoic climates and plate motions inferred from major element chemistry of lutites[J]. Nature, 1982, 299(5885): 715-717. doi: 10.1038/299715a0
[19] Nesbitt H W, Markovics G. Weathering of granodioritic crust, long-term storage of elements in weathering profiles, and petrogenesis of siliciclastic sediments[J]. Geochimica et Cosmochimica Acta, 1997, 61(8): 1653-1670. doi: 10.1016/S0016-7037(97)00031-8
[20] 陈旺. 豫西济源西部铝土矿成矿地质环境[J]. 地质与勘探, 2007, 43(1): 26-31. https://www.cnki.com.cn/Article/CJFDTOTAL-DZKT200701004.htm
Chen W. Ore-forming conditions of bauxite deposits in western Jiyuan, Henan[J]. Geology and Prospecting, 2007, 43(1): 26-31. https://www.cnki.com.cn/Article/CJFDTOTAL-DZKT200701004.htm
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