鄂尔多斯盆地东南缘含煤区砂岩型铀矿成矿条件
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摘要
为了探讨鄂尔多斯盆地东南缘含煤区砂岩型铀矿成矿地质条件,通过分析该地区地质特征、构造、水文、地层–岩相及铀源等特征,采用资料收集、镜下鉴定、煤田资料筛查、地质编图等方法进行探讨。综合分析认为:鄂尔多斯盆地东南缘中侏罗统直罗组下段放射性异常发育,为主要找矿目的层;控矿构造有利,泥–砂–泥地层结构完整,水动力条件完善,铀源丰富。结合已有钻探验证发现工业矿体,说明该地区砂岩型铀矿成矿地质条件优越,铀成矿潜力较大。
In order to study the metallogenic geological conditions of sandstone uranium deposits in the coal-bearing area in the southeastern margin of Ordos basin, the geological characteristics, structure, hydrology, strata lithofacies and uranium source of the area were analyzed, and the methods of data collection, microscopic identification, coal field data screening and geological mapping were adopted. Comprehensive analysis shows that the lower part of the Zhiluo Formation of Middle Jurassic in the southeastern margin of Ordos basin is characterized by abnormal development of radioactivity and is the main target bed for prospecting; the ore-controlling structure is favorable, the mud-sand-mud stratum structure is complete, the hydrodynamic condition is perfect, and the uranium source is abundant. Combined with the existing drilling verification, the sandstone uranium mineralization in this area is proved. The ore geological conditions are superior and uranium prospecting potential is large.
In order to study the metallogenic geological conditions of sandstone uranium deposits in the coal-bearing area in the southeastern margin of Ordos basin, the geological characteristics, structure, hydrology, strata lithofacies and uranium source of the area were analyzed, and the methods of data collection, microscopic identification, coal field data screening and geological mapping were adopted. Comprehensive analysis shows that the lower part of the Zhiluo Formation of Middle Jurassic in the southeastern margin of Ordos basin is characterized by abnormal development of radioactivity and is the main target bed for prospecting; the ore-controlling structure is favorable, the mud-sand-mud stratum structure is complete, the hydrodynamic condition is perfect, and the uranium source is abundant. Combined with the existing drilling verification, the sandstone uranium mineralization in this area is proved. The ore geological conditions are superior and uranium prospecting potential is large.
引文
[1]王毅,杨伟利,邓军,等.多种能源矿产同盆共存富集成矿(藏)体系与协同勘探:以鄂尔多斯盆地为例[J].地质学报,2014,88(5):815-824.WANG Yi,YANG Weili,DENG Jun,et al.Accumulation system of cohabitating multi-energy minerals and their comprehensive exploration in sedimentary basin:A case study of Ordos basin,NWChina[J].Acta Geologica Sinica,2014,88(5):815-824.
[2]刘池洋.多种能源矿产共存富集成藏(矿)研究进展[M].北京:科学出版社,2005.
[3]李晓翠,刘武生,贾立城,等.鄂尔多斯盆地南部砂岩型铀矿成矿预测[J].铀矿地质,2014,30(6):321-327.LI Xiaocui,LIU Wusheng,JIA Licheng,et al.Prognosis of sandstone hosted uranium deposit in southern Ordos basin[J].2014,30(6):321-327.
[4]田成,贾立城,李松,等.鄂尔多斯盆地南部含铀砂岩岩石学特征研究[J].铀矿地质,2007,23(2):71-76.TIAN Cheng,JIA Licheng,LI Song,et al.Study of petrological characteristics of uranium-bearing sandstone in the south of Ordos basin[J].Uranium Geology,2007,23(2):71-76.
[5]任中贤,申平喜,陈粉玲.鄂尔多斯盆地南缘砂岩型铀矿地质特征及成矿条件分析[J].世界核地质科学,2014,31(3):514-518.REN Zhongxian,SHEN Pingxi,CHEN Fenling.Analysis on the geological features and ore-forming conditions at the southern margin of Ordos basin[J].World Nuclear Geoscience,2014,31(3):514-518.
[6]邢秀娟,柳益群,李卫宏,等.鄂尔多斯盆地南部店头地区直罗组砂岩成岩演化与铀成矿[J].地球学报,2008,29(2):179-188.XING Xiujuan,LIU Yiqun,LI Weihong,et al.Sandstone diagenesis and uranium mineralization of the Zhiluo Formation in the Diantou area,southern Ordos basin[J].Acta Geoscientica Sinica,2008,29(2):179-188.
[7]陈国达,陈家超,魏柏林,等.中国大地构造简述[J].地质科学,1975,10(3):205-219.CHEN Guoda,CHEN Jiachao,WEI Bailin,et al.A brief review on the geotectonics of China[J].Chinese Journal of Geology,1975,10(3):205-219.
[8]邓军,王庆飞,高帮飞,等.鄂尔多斯盆地演化与多种能源矿产分布[J].现代地质,2005,19(4):538-545.DENG Jun,WANG Qingfei,GAO Bangfei,et al.Evolution of Ordos basin and its distribution of various energy resources[J].Geoscience,2005,19(4):538-545.
[9]刘池洋,赵红格,桂小军,等.鄂尔多斯盆地演化-改造的时空坐标及其成藏(矿)响应[J].地质学报,2006,80(5):617-638.LIU Chiyang,ZHAO Hongge,GUI Xiaojun,et al.Space-time coordinate of the evolution and reformation and mineralization response in Ordos basin[J].Acta Geologica Sinica,2006,80(5):617-638.
[10]李亮,王永康,张建晔.在油气藏周围寻找砂岩型铀矿[J].西安石油大学学报(自然科学版),2001,16(5):7-10.LI Liang,WANG Yongkang,ZHANG Jianye.Exploiting the sandstone uranium deposits around oil and gas reservoirs[J].Journal of Xi’an Petroleum Institute(Natural Scienca Edition),2001,16(5):7-10.
[11]刘池洋,赵红格,王锋,等.鄂尔多斯盆地西缘(部)中生代构造属性[J].地质学报,2005,79(6):737-747.LIU Chiyang,ZHAO Hongge,WANG Feng,et al.Attributes of the mesozoic structure on the west margin of the Ordos basin[J].Acta Geologica Sinica,2005,79(6):737-747.
[12]张字龙,范洪海,蔡煜琦,等.鄂尔多斯盆地黄陵地区直罗组有机地球化学特征及其与铀成矿关系[J].地质学报,2016,90(12):3408-3423.ZHANG Zilong,FAN Honghai,CAI Yuqi,et al.The organic geochemical characteristics of Zhiluo Formation and its relationship with uranium mineralization in the Huangling area,Ordos basin[J].Acta Geologica Sinica,2016,90(12):3408-3423.
[13]李智学,邵龙义,李明培,等.鄂尔多斯盆地黄陵北部延安组页岩气勘探潜力分析[J].煤田地质与勘探,2014,42(4):31-35.LI Zhixue,SHAO Longyi,LI Mingpei,et al.Analysis of shale gas resource exploration potential of Yan’an Formation in northern Huangling mining area of Ordos basin[J].Coal Geology&Exploration,2014,42(4):31-35.
[14]杨俊杰.鄂尔多斯盆地构造演化与油气分布规律[M].北京:石油工业出版社,2002.
[15]孙少华,李小明,龚革联,等.鄂尔多斯盆地构造热事件研究[J].科学通报,1997,42(3):306-309.SUN Shaohua,LI Xiaoming,GONG Gelian,et al.Tectono-thermal events in Ordos basin,China[J].Chinese Science Bulletin,1997,42(3):306-309.
[16]赵俊峰,刘池洋,赵建设,等.鄂尔多斯盆地侏罗系直罗组沉积相及其演化[J].西北大学学报(自然科学版),2008,38(3):480-486.ZHAO Junfeng,LIU Chiyang,ZHAO Jianshe,et al.Sedimentary facies and its evolution of Jurassic Zhiluo Formation in Ordos basin[J].Journal of Northwest University(Natural Science Edition),2008,38(3):480-486.
[17]焦养泉,吴立群,彭云彪,等.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,2015,22(1):189-205.JIAO Yangquan,WU Liqun,PENG Yunbiao,et al.Sedimentary-tectonic setting of the deposition-type uranium deposits forming in the Paleo-Asian tectonicdomain,North China[J].Earth Science Frontiers,2015,22(1):189-205.
[18]孙立新,张云,张天福,等.鄂尔多斯北部侏罗纪延安组、直罗组孢粉化石及其古气候意义[J].地学前缘,2017,24(1):32-51.SUN Lixin,ZHANG Yun,ZHANG Tianfu,et al.Jurassic sporopollen of Yan’an Formation and Zhiluo Formation in the northeastern Ordos basin,Inner Mongolia,and its paleoclimatic significance[J].Earth Science Frontiers,2017,24(1):32-51.
[19]侯光才,张茂省.鄂尔多斯盆地地下水勘查研究[M].北京:地质出版社,2008.
[20]BRAUN J J,PGAEL M,MULLER J P,et al.Ceriumn anomalies in lateritic Profiles[J].Geoehim Cosmiehim Acta,1990,54:781-795.
[21]PRICE R C,GRAY C M,WILSON R E,et al.The effect of weathering on rare earth element,Y and Ba abundences in Tertiary basalts from southeasten Australia[J].Chemical Geology,1991,93:245-265.
[22]鲁宝龙,刘池阳,李卫红,等.鄂尔多斯盆地南部砂岩型铀矿找矿模式探讨[J].矿床地质,2012,31(增刊1):211-212.LU Baolong,LIU Chiyang,LI Weihong,et al.Discussion on prospecting model for sandstone type uranium deposits in southern Ordos basin[J].Mineral Deposits,2012,31(S1):211-212.
[23]苗培森,李建国,汤超,等.中国北方中新生代盆地深部砂岩铀矿成矿条件与找矿方向[J].地质通报,2017,36(10):1830-1840.MIAO Peisen,LI Jianguo,TANG Chao,et al.Metallogenic condition and prospecting orientation for deep sandstone-hosted uranium deposits in Mesozoic-Cenozoic basins of north China[J].Geological Bulletin of China,2017,36(10):1830-1840.
[24]李西得.鄂尔多斯盆地北东部铀矿找矿方向探讨[J].矿床地质,2014,33(增刊1):861-862.LI Xide.Prospecting direction for uranium deposits in the eastern part of Ordos basin[J].Mineral Deposits,2014,33(S1):861-862.
[25]张字龙,范洪海,贺锋,等.鄂尔多斯盆地西南缘下白垩统铀成矿条件分析[J].铀矿地质,2018,34(4):193-200.ZHANG Zilong,FAN Honghai,HE Feng,et al.Analysis of sandstone type uranium metallogenic conditions of Lower Cretaceous in the southwest margin of Ordos basin[J].Uranium Geology,2018,34(4):193-200.
[2]刘池洋.多种能源矿产共存富集成藏(矿)研究进展[M].北京:科学出版社,2005.
[3]李晓翠,刘武生,贾立城,等.鄂尔多斯盆地南部砂岩型铀矿成矿预测[J].铀矿地质,2014,30(6):321-327.LI Xiaocui,LIU Wusheng,JIA Licheng,et al.Prognosis of sandstone hosted uranium deposit in southern Ordos basin[J].2014,30(6):321-327.
[4]田成,贾立城,李松,等.鄂尔多斯盆地南部含铀砂岩岩石学特征研究[J].铀矿地质,2007,23(2):71-76.TIAN Cheng,JIA Licheng,LI Song,et al.Study of petrological characteristics of uranium-bearing sandstone in the south of Ordos basin[J].Uranium Geology,2007,23(2):71-76.
[5]任中贤,申平喜,陈粉玲.鄂尔多斯盆地南缘砂岩型铀矿地质特征及成矿条件分析[J].世界核地质科学,2014,31(3):514-518.REN Zhongxian,SHEN Pingxi,CHEN Fenling.Analysis on the geological features and ore-forming conditions at the southern margin of Ordos basin[J].World Nuclear Geoscience,2014,31(3):514-518.
[6]邢秀娟,柳益群,李卫宏,等.鄂尔多斯盆地南部店头地区直罗组砂岩成岩演化与铀成矿[J].地球学报,2008,29(2):179-188.XING Xiujuan,LIU Yiqun,LI Weihong,et al.Sandstone diagenesis and uranium mineralization of the Zhiluo Formation in the Diantou area,southern Ordos basin[J].Acta Geoscientica Sinica,2008,29(2):179-188.
[7]陈国达,陈家超,魏柏林,等.中国大地构造简述[J].地质科学,1975,10(3):205-219.CHEN Guoda,CHEN Jiachao,WEI Bailin,et al.A brief review on the geotectonics of China[J].Chinese Journal of Geology,1975,10(3):205-219.
[8]邓军,王庆飞,高帮飞,等.鄂尔多斯盆地演化与多种能源矿产分布[J].现代地质,2005,19(4):538-545.DENG Jun,WANG Qingfei,GAO Bangfei,et al.Evolution of Ordos basin and its distribution of various energy resources[J].Geoscience,2005,19(4):538-545.
[9]刘池洋,赵红格,桂小军,等.鄂尔多斯盆地演化-改造的时空坐标及其成藏(矿)响应[J].地质学报,2006,80(5):617-638.LIU Chiyang,ZHAO Hongge,GUI Xiaojun,et al.Space-time coordinate of the evolution and reformation and mineralization response in Ordos basin[J].Acta Geologica Sinica,2006,80(5):617-638.
[10]李亮,王永康,张建晔.在油气藏周围寻找砂岩型铀矿[J].西安石油大学学报(自然科学版),2001,16(5):7-10.LI Liang,WANG Yongkang,ZHANG Jianye.Exploiting the sandstone uranium deposits around oil and gas reservoirs[J].Journal of Xi’an Petroleum Institute(Natural Scienca Edition),2001,16(5):7-10.
[11]刘池洋,赵红格,王锋,等.鄂尔多斯盆地西缘(部)中生代构造属性[J].地质学报,2005,79(6):737-747.LIU Chiyang,ZHAO Hongge,WANG Feng,et al.Attributes of the mesozoic structure on the west margin of the Ordos basin[J].Acta Geologica Sinica,2005,79(6):737-747.
[12]张字龙,范洪海,蔡煜琦,等.鄂尔多斯盆地黄陵地区直罗组有机地球化学特征及其与铀成矿关系[J].地质学报,2016,90(12):3408-3423.ZHANG Zilong,FAN Honghai,CAI Yuqi,et al.The organic geochemical characteristics of Zhiluo Formation and its relationship with uranium mineralization in the Huangling area,Ordos basin[J].Acta Geologica Sinica,2016,90(12):3408-3423.
[13]李智学,邵龙义,李明培,等.鄂尔多斯盆地黄陵北部延安组页岩气勘探潜力分析[J].煤田地质与勘探,2014,42(4):31-35.LI Zhixue,SHAO Longyi,LI Mingpei,et al.Analysis of shale gas resource exploration potential of Yan’an Formation in northern Huangling mining area of Ordos basin[J].Coal Geology&Exploration,2014,42(4):31-35.
[14]杨俊杰.鄂尔多斯盆地构造演化与油气分布规律[M].北京:石油工业出版社,2002.
[15]孙少华,李小明,龚革联,等.鄂尔多斯盆地构造热事件研究[J].科学通报,1997,42(3):306-309.SUN Shaohua,LI Xiaoming,GONG Gelian,et al.Tectono-thermal events in Ordos basin,China[J].Chinese Science Bulletin,1997,42(3):306-309.
[16]赵俊峰,刘池洋,赵建设,等.鄂尔多斯盆地侏罗系直罗组沉积相及其演化[J].西北大学学报(自然科学版),2008,38(3):480-486.ZHAO Junfeng,LIU Chiyang,ZHAO Jianshe,et al.Sedimentary facies and its evolution of Jurassic Zhiluo Formation in Ordos basin[J].Journal of Northwest University(Natural Science Edition),2008,38(3):480-486.
[17]焦养泉,吴立群,彭云彪,等.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,2015,22(1):189-205.JIAO Yangquan,WU Liqun,PENG Yunbiao,et al.Sedimentary-tectonic setting of the deposition-type uranium deposits forming in the Paleo-Asian tectonicdomain,North China[J].Earth Science Frontiers,2015,22(1):189-205.
[18]孙立新,张云,张天福,等.鄂尔多斯北部侏罗纪延安组、直罗组孢粉化石及其古气候意义[J].地学前缘,2017,24(1):32-51.SUN Lixin,ZHANG Yun,ZHANG Tianfu,et al.Jurassic sporopollen of Yan’an Formation and Zhiluo Formation in the northeastern Ordos basin,Inner Mongolia,and its paleoclimatic significance[J].Earth Science Frontiers,2017,24(1):32-51.
[19]侯光才,张茂省.鄂尔多斯盆地地下水勘查研究[M].北京:地质出版社,2008.
[20]BRAUN J J,PGAEL M,MULLER J P,et al.Ceriumn anomalies in lateritic Profiles[J].Geoehim Cosmiehim Acta,1990,54:781-795.
[21]PRICE R C,GRAY C M,WILSON R E,et al.The effect of weathering on rare earth element,Y and Ba abundences in Tertiary basalts from southeasten Australia[J].Chemical Geology,1991,93:245-265.
[22]鲁宝龙,刘池阳,李卫红,等.鄂尔多斯盆地南部砂岩型铀矿找矿模式探讨[J].矿床地质,2012,31(增刊1):211-212.LU Baolong,LIU Chiyang,LI Weihong,et al.Discussion on prospecting model for sandstone type uranium deposits in southern Ordos basin[J].Mineral Deposits,2012,31(S1):211-212.
[23]苗培森,李建国,汤超,等.中国北方中新生代盆地深部砂岩铀矿成矿条件与找矿方向[J].地质通报,2017,36(10):1830-1840.MIAO Peisen,LI Jianguo,TANG Chao,et al.Metallogenic condition and prospecting orientation for deep sandstone-hosted uranium deposits in Mesozoic-Cenozoic basins of north China[J].Geological Bulletin of China,2017,36(10):1830-1840.
[24]李西得.鄂尔多斯盆地北东部铀矿找矿方向探讨[J].矿床地质,2014,33(增刊1):861-862.LI Xide.Prospecting direction for uranium deposits in the eastern part of Ordos basin[J].Mineral Deposits,2014,33(S1):861-862.
[25]张字龙,范洪海,贺锋,等.鄂尔多斯盆地西南缘下白垩统铀成矿条件分析[J].铀矿地质,2018,34(4):193-200.ZHANG Zilong,FAN Honghai,HE Feng,et al.Analysis of sandstone type uranium metallogenic conditions of Lower Cretaceous in the southwest margin of Ordos basin[J].Uranium Geology,2018,34(4):193-200.