Uranium mineralization characteristics of Cretaceous period and prospecting direction of the Hurenbuqi depression in Erlian basin, Inner Mongolia
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摘要:
二连盆地是我国煤炭、油气、铀矿等资源的重要勘查基地,其中砂岩型铀矿的找矿方向和找矿突破一直是盆地铀资源勘查的重点。呼仁布其凹陷为二连盆地北部巴音宝力格隆起上的一个次级凹陷,为一相对独立的地质构造单元,在古生代基底之上沉积了厚层的中新生代地层,其中下白垩统赛汉组沉积了一套扇三角洲-湖泊相的含煤碎屑岩建造,地层埋深浅、厚度稳定,发育泥-砂-泥结构,砂体较发育,岩石具有黑色和灰色原生地球化学特征,具备铀矿成矿基本条件。本文以煤田钻孔资料“二次开发”作为铀矿勘查新思路,对凹陷中部地区收集的煤田钻孔测井成果开展了综合研究,在下白垩统赛汉组中圈定出规模较大且连续的放射性异常,显示出较好的找矿前景。通过对呼仁布其凹陷大地构造条件、铀源、地层-岩相、岩性、古气候与地貌、古水文地质特征等的系统分析,择优重点选择煤田铀异常孔进行钻孔验证,发现了具有工业意义的铀矿孔,在赛汉组中发现了两个稳定的铀矿化层,第一层铀矿化受到潜水氧化带的控制,位于潜水氧化带界面底部的泥岩中,为垂向氧化型成矿类型;第二层铀矿化受到层间氧化作用的控制,为典型的侧向氧化层间氧化型成矿类型。指出煤田钻孔伽马异常高值区可作为下一步铀矿勘查工作的方向。
Abstract:Erlian basin has rich coal, oil, natural gas and uranium resources, but the targeting and breakthrough of the prospecting for sandstone-type and sedimentary uranium deposits remain a focus in uranium resources exploration of this basin. Hurenbuqi depression is a subordinate depression on the Bayinbaolige uplift in the northern part of Erlian basin, which is a relatively independent geological tectonic unit. It deposited thick Mesozoic-Cenozoic strata above the Paleozoic basement. The Lower Cretaceous Saihan Formation deposited a set of fan delta-lacustrine coal-bearing clastic rocks. The burial depth of the strata is fairly shallow, the thickness is stable, the mud-sand-mud structure is developed, the sand body is especially well developed, and the rock has black and gray primary geochemical characteristics. Using the new idea of employing the data of coalfield drilling for second-round development of uranium resources, the authors conducted comprehensive research on the coalfield logging data collected from a certain area on the northwest margin of the basin and, as a result, delineated large-scale and continuous radioactive anomalies in the Lower Cretaceous Saihan Formation, showing a good prospecting prospect. Through a systematic study of tectonic conditions, stratigraphic facies, lithology, palaeoclimate, geomorphology, and palaeohydrology, the authors chose uranium anomaly holes in the coalfield to make drilling verification and found a uranium ore hole with the industrial significance. Two stable uranium mineralization layers were found in the Saihan Formation. The first layer is controlled by the phreatic oxidation zone, is located in the mudstone at the bottom of the interface of the phreatic oxidation zone, and belongs to the vertical oxidation type mineralization type. The second layer of uranium mineralization is a mudstone formation, and belongs to the typical interlayer oxidation type. The authors finally point out the direction of the next exploration work.
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表 1 二连盆地北部某铀矿床赛汉组上段含铀矿地层岩石U和Th含量
Table 1. U content and Th content of uranium-bearing rocks from the upper Saihan Formation in northern Erlian Basin
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Cui Yongqian, Liu Xiheng, Sun Zhaohui, Yao Huan, Han Chunyuan. 2011. The Deep physical geographic characteristics and Neopaleozoic geological structural exploration of Erlian basin, Inner Mongolia, China[J]. Geological Bulletin of China, 30(2/3):235-242 (in Chinese with English abstract). https://www.researchgate.net/publication/287751186_The_Deep_physical_geographic_characteristics_and_Neopaleozoic_geological_structural_exploration_of_Erlian_basin_Inner_Mongolia_China
Chen Gong, Deng Jinggui, Zhang Kefang, Xu Gang. 1997. Evaluation on Uranium Mineralizing Geological Condition and Prospect in Erlian Basin and Its Adjacent Area[J]. China Nuclear Science and Technology Report, (00):970-981 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-GWYD200403002.htm
Dahlkamp F J. 1993 Uranium Deposits[M]. Berlin: Springer-Verlag.
Guo Hongwei. 2014. Studies on Characteristics and Regularity of Metallogenesis of Bayanwula Uranium Deposits, Inner Mongolia[D]. China University of Geosciences.
Jiao Yangquan, Wu Liqun, Peng Yunbiao, Rong Hui, Ji Dongmin, Miao Aisheng, Li Hongliang. 2015. Sedimentary-tectonic setting of the deposition-type uranium deposits forming in the PaleoAsian tectonic domain, North China[J]. Earth Science Frontiers, 22(1):189-205 (in Chinese with English abstract). https://www.researchgate.net/publication/281907888_Sedimentary-tectonic_setting_of_the_deposition-type_uranium_deposits_forming_in_the_Paleo-Asian_tectonic_domain_North_China
Jiao Guihao. 2003. Tectonic evolution of Erlian rift and Oil and gas[M]. Petroleum Industry Press.
Jin Ruoshi, Qin Zhi' an. 2013. Study on the exploration sequence of sandstone-hosted uranium deposits in North China[J]. Geological Survey and Research, 36(2):82-83 (in Chinese with English abstract). http://d.wanfangdata.com.cn/Periodical_qhwjyjjz201302001.aspx
Jin Ruoshi, Huang Pengtao, Miao Peisen, Feng Xiaoxi, Tang Chao, Li Guangyao. 2014. Metallogenic conditions and prospecting targeting of the Jurassic sand type uranium deposits on the eastern margin of Junggar basin[J]. Geological Bulletin of China, 33(2/3):359-369 (in Chinesewith English abstract). http://www.researchgate.net/publication/297425137_Metallogenic_conditions_and_prospecting_targeting_of_the_Jurassic_sand_type_uranium_deposits_on_the_eastern_margin_of_Junggar_Basin
Jin Ruoshi, Zhang Chengjiang, Feng Xiaoxi, Zhu Qiang, Li Guangyao. 2014b. The influence of fluid mixing on the mineralization of sandstone type uranium deposits[J]. Geological Bulletin of China, 33(2/3):354-358 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-ZQYD2014Z1025.htm
Kuang Wenzhan, Cai Tong, Yan Zhaobing. 2014. Characteristic in cretaceous and types of uranium mineralization in Ulancabu depression, Erlian basin, Inner Mongolia[J]. Journal of East China Institute of Technology (Natural Science), 37(2):111-121 (in Chinese with English abstract). http://d.wanfangdata.com.cn/Periodical_hddzxyxb201402002.aspx
Li Guoxin, Xun Zexuan, Yao Yifeng, Huang Dayou. 2003. Analysis on metallogenic conditions and prospect of sandstone-type uranium deposits in Meso-Cenozoic basin, Bayinbaolige uplifted zone[J]. Uranium Geology, 19(3):148-153 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTotal-YKDZ200303003.htm
Li Hongjun, Shen Kefeng, Nie Fengjun, Kuang Wenzhan, He Datu. 2012. Sedimentary evolution in meso-cenozoic and uranium mineralization of erlian basin[J]. Journal of East China Institute of Technology (Natural Science), 35(4):301-308 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-HDDZ201204003.htm
Li Xianping, Zhang Shaohua, Li Linbo, Yang Minghui, Lu Yonghe, Zhou Duo, Qu Xiaoyan. 2015. Coupling of faulted sags to basement in Early Cretaceous Erlian Basin[J]. Chinese Journal of Geology, 50(1):88-99 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTotal-DZKX201501006.htm
Lu Chao, Peng Yunbiao, Liu Xinyang, Jiao Yangquan, Yang Jianxin, Chen Fazheng, Shen Kefeng Li Ronglin. 2013. Sedimentary backgrounds of sandstone-type uranium deposits in western Manite depression of Erlian basin[J]. Uranium Geology, 29 (6):336-343 (in Chinese with English abstract). http://www.en.cnki.com.cn/Article_en/CJFDTOTAL-YKDZ201306003.htm
Meng Qingren. What drove late Mesozoic extension of the northern China-Mongolia tract?[J]. Tectonophysics, 2003, 369(3-4):155-174. doi: 10.1016/S0040-1951(03)00195-1
Nie Fengjun. 2010. Sandstone-type uranium deposits in the ancient channel of Erlian Basin[M]. Geological Publishing House.
Nie Fengjun, Li Mangen, Yan Zhaobing, Zhang Chengyong, Jiang Meizhu, Yang Jianxin, Kuang Wenzhan, Kang Shihu, Shen Kefeng. 2015. Multiple type uranium deposit assemblage and uranium exploration in Erlian rift Basin, Inner Mongolia[J].Mineral Deposits, 34(4):711-729 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTotal-KCDZ201504004.htm
Nie Fengjun, Li Mangen, Yan Zhaobing, Yang Jianxin, Kang Shihu, Shen Kefeng. 2015. Segmentation of the target layer Saihan Forma-tion and sandstone-type uranium mineralization in Erlian Basin[J]. Geological Bulletin of China, 34(10):1952-1963 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-YKDZ201306002.htm
Quan Jianping, Pan Tailiang, Xu Gaozhong, Li Weihong, Chen Hongbin. 2007. Effects of hydrocarbon migration on sandstonetype uranium mineralization in basins of northern China[J]. Geology in China, 34(3):470-477 (in Chinese with English abstract). https://www.researchgate.net/publication/289336782_Effects_of_hydrocarbon_migration_on_sandstone-type_uranium_mineralization_in_basins_of_northern_China
Ren Jianye, Tamaki K, Li Sitian. Late Mesozoic and Cenozoic rifting and its dynamic setting in Eastern China and adjacent areas[J]. Tectonophysics, 2002, 344:175-205. doi: 10.1016/S0040-1951(01)00271-2
Wei Sanyuan, Qing Mingkuan, Li Yuexiang, He Zhongbo, Chen Anping Shen Kefeng, Cao Jianying. 2006. Tectono-sedimentary evolution of Erlian basin since Late Mesozoic and sandstonehosted uranium metallogenesis[J]. Uranium Geology, 22(2):76-82(in Chinese with English abstract). https://link.springer.com/content/pdf/10.1007/3-540-27946-6_84.pdf
Wu Zhaojian, Han Xiaozhong. 2016. A new uranium exploring technical system for secondary development of coalfield data and its prospecting significance:A case study of the ZS coalfield, Erlian basin[J]. Geology in China, 43(2):617-627 (in Chinese with English abstract). http://www.academia.edu/9846899/Research_of_Strategic_Raw_Materials_of_Hungary
Yu Haifei. 2010. Mesozoic and Cenozoic Sedimentary Tectonic Evolution of Erlian Basin and sandstone-type uranium mineralization prospect[J].Journal of henan polytechnic university(natural science), 2010(1):6-10(in Chinese with no English abstract).
Zhang Jindai, Xu Gaozhong, Lin Jinrong, Peng Yunbiao, Wang Guo. 2010. The implication of six kinds of new sandstone-type uranium deposits to uranium resources potential in North China[J]. Geology in China, 37(5):1434-1449 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-KJIG201302026.htm
Zhao Xianzheng, Jin Fengming, Qi Jiafu, Wang Quan, Yang Minghui, Shi Yuanpeng, Dong Xiongying. 2015. The structural types and petroleum geo-Logical meaning of Early Cretaceous complex faulted sag In Erlian Basin[J]. The Natural Gas Geo-Science, 26(7):1289-1298 (in Chinese with English abstract). https://www.sciencedirect.com/science/article/pii/S2095383615000085
陈功, 邓金贵, 张克芳, 徐刚, 罗长本, 牟长林, 徐德津. 1997二连盆地及邻区铀成矿地质条件及成矿远景评价[J].中国核科技报告, (00):970-981. http://www.cqvip.com/QK/90717X/199696/2409196.html
崔永谦, 刘喜恒, 孙朝辉, 姚欢, 韩春元. 2011.内蒙古二连盆地深层地球物理特征和上古生界的地质结构[J].地质通报, 30(2):235-242. http://d.old.wanfangdata.com.cn/Periodical/zgqydz201102008
郭宏伟. 内蒙古巴彦乌拉铀矿床成矿特征及成矿规律研究[D]. 中国地质大学(北京), 2014.
http://cdmd.cnki.com.cn/Article/CDMD-11415-1014234012.htm 焦贵浩.二连裂谷构造演化与油气[M].石油工业出版社, 2003.
焦养泉, 吴立群, 彭云彪, 荣辉, 季东民, 苗爱生, 里宏亮. 2015.中国北方古亚洲构造域中沉积型铀矿形成发育的沉积-构造背景综合分析[J].地学前缘, 22(1):189-205. http://d.wanfangdata.com.cn/Periodical_dxqy201501016.aspx
金若时, 黄澎涛, 苗培森, 冯晓曦, 汤超, 李光耀. 2014.准噶尔盆地东缘侏罗系砂岩型铀矿成矿条件与找矿方向[J].地质通报, 33(z1):359-369. http://www.oalib.com/paper/4324535
金若时, 覃志安. 2013.中国北方含煤盆地砂岩型铀矿找矿模式层序研究[J].地质调查与研究, (2):81-84. http://d.old.wanfangdata.com.cn/Periodical/qhwjyjjz201302001
金若时, 张成江, 冯晓曦, 汤超, 朱强, 李光耀. 2014.流体混合对砂岩型铀矿成矿作用的影响[J].地质通报, 33(2):354-358. http://www.cqvip.com/QK/95894A/201402/48993113.html
旷文战, 蔡彤, 严兆彬. 2014.内蒙古二连盆地乌兰察布坳陷白垩系特征及铀成矿类型[J].东华理工大学学报:自然科学版, 37(2):111-121. http://d.wanfangdata.com.cn/Periodical_hddzxyxb201402002.aspx
李国新, 孙泽轩, 姚毅锋, 黄大友. 2003.巴音宝力格隆起带中新生代盆地砂岩型铀矿成矿地质条件及远景分析[J].铀矿地质, 19(3):148-153. http://www.cqvip.com/qk/91728X/200303/7830497.html
李洪军, 申科峰, 聂逢君, 旷文站, 何大兔. 2012.二连盆地中新生代沉积演化与铀成矿[J].东华理工大学学报(自然科学版), 35(4):301-308. http://d.wanfangdata.com.cn/Periodical_hddzxyxb201204001.aspx
李先平, 张少华, 李林波, 杨明慧, 卢永合, 周多, 屈晓艳. 2015.二连盆地早白垩世断陷及基底构造的耦合性[J].地质科学, 50(1):88-99. http://d.wanfangdata.com.cn/Periodical_dzkx201501006.aspx
鲁超, 彭云彪, 刘鑫扬, 焦养泉, 杨建新陈法正申科峰李荣林. 2013二连盆地马尼特坳陷西部砂岩型铀矿成矿的沉积学背景[J].铀矿地质, 29(6):336-343. http://d.wanfangdata.com.cn/Periodical_ykdz201306003.aspx
聂逢君.二连盆地古河道砂岩型铀矿[M].地质出版社, 2010.
聂逢君, 李满根, 邓居智, 严兆彬, 张成勇, 姜美珠, 杨建新, 旷文战, 康世虎, 申科峰. 2015.内蒙古二连裂谷盆地"同盆多类型"铀矿床组合与找矿方向[J].矿床地质, 34(4):711-729. http://www.cnki.com.cn/Article/CJFDTOTAL-KCDZ201504004.htm
聂逢君, 李满根, 严兆彬, 夏菲, 张成勇, 杨建新, 康世虎, 申科峰. 2015.内蒙古二连盆地砂岩型铀矿目的层赛汉组分段与铀矿化[J].地质通报, 34(10):1952-1963. doi: 10.3969/j.issn.1671-2552.2015.10.020
权建平, 樊太亮, 徐高中, 李卫红, 陈宏斌. 2007.中国北方盆地中油气运移对砂岩型铀矿成矿作用讨论[J].中国地质, 34(3):470-477. http://geochina.cgs.gov.cn/ch/reader/view_abstract.aspx?file_no=20070316&flag=1
卫三元, 秦明宽, 李月湘, 何中波, 陈安平, 申科锋, 曹建英. 2006.二连盆地晚中生代以来构造沉积演化与铀成矿作用[J].铀矿地质, 22(2):76-82. http://d.old.wanfangdata.com.cn/Periodical/ykdz200602003
吴兆剑, 韩效忠. 2016.煤田资料的铀矿二次开发技术及其找矿意义——以二连盆地ZS煤田铀矿点的发现为例[J].中国地质, 43(2):617-627. doi: 10.12029/gc20160221 http://geochina.cgs.gov.cn/ch/reader/view_abstract.aspx?file_no=20160221&flag=1
于海飞.二连盆地中新生代沉积构造演化与砂岩型铀成矿前景分析[J].河南理工大学学报自然科学版, 2010(1):6-10. http://www.cqvip.com/QK/91634B/2010S1/3000098561.html
赵贤正, 金凤鸣, 漆家福, 王权, 杨明慧, 史原鹏, 董雄英. 2015.二连盆地早白垩世复式断陷构造类型及其石油地质意义[J].天然气地球科学, 26(7):1289-1298. http://d.old.wanfangdata.com.cn/Periodical/trqdqkx201507008
张金带, 徐高中, 林锦荣, 彭云彪王果. 2010.中国北方6种新的砂岩型铀矿对铀资源潜力的提示[J].中国地质, 37(5):1434-1449. http://geochina.cgs.gov.cn/ch/reader/view_abstract.aspx?file_no=20100520&flag=1
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