Abstract Diantou uranium deposits and multiple uranium mineralization sites have been discovered in the sandstones in the lower member of the Jurassic Zhiluo Formation in the southern Ordos Basin. However, the study on the sedimentary facies of the Zhiluo Formation, which restricts the prospecting work of sandstone-type uranium deposits. Based on the outcrop measurements and drilling core cataloging, and combined with the geological drilling data of petroleum, coal, and nuclear industry, we have elaborated the sedimentary characteristics of the Zhiluo Formation in the Fuxian area. We have also combined uranium source, structure, post-alteration and other factors to explore the relationship between sedimentary faces and uranium metallogenic conditions in the study area. The study found that in the lower member of the Jurassic Zhiluo Formation, the thickness of the sand body is 30-65 m and sand ratio is 0.6-0.75. It is gravel and sandy braided river deposit. In the upper member of the Jurassic Zhiluo Formation, the thickness of the sand body is 10-38 m, and the sand ratio is 0.15-0.45 and is a meandering river deposit. The study area is located at the center of the lake basin and sedimentary facies is coastal shallow lacustrine in the upper member of the Jurassic Zhiluo Formation. Sedimentary environment, sedimentary facies, the intersection of braided river channels, sand body thickness, sediment particle size and mudstone interlayer play an important role in controlling uranium mineralization. The exploration of uranium deposits in the northern part of the deposit should focus on the intersection or bifurcation of the braided river channel in the lower part of the Zhiluo Formation. The charcoal- and pyrite-bearing sandstone of channel bar can be used as a prospecting indicator for uranium mineralization.
Fund:Co-funded by the China Nuclear Geology(Nos. 201524,201828-1,201913-4)and the CNNC Longteng 2020(No. LTD1601-3)
About author: Wang Xiao-Peng,born in 1990,graduated from Chang’an University in 2015 with his masteral degree. He is mainly engaged in sedimentology and uranium geological exploration research. E-mail: 136279196@qq.com.
Cite this article:
Wang Xiao-Peng,Liu Kun-Peng,Chen Hong-Bin et al. Sedimentary characteristics of the Jurassic Zhiluo Formation and uranium deposits in Zhiluo-Diantou area,southern Ordos Basin[J]. JOPC, 2020, 22(2): 295-308.
Wang Xiao-Peng,Liu Kun-Peng,Chen Hong-Bin et al. Sedimentary characteristics of the Jurassic Zhiluo Formation and uranium deposits in Zhiluo-Diantou area,southern Ordos Basin[J]. JOPC, 2020, 22(2): 295-308.
[1] 陈宏斌,徐高中,王金平,李卫红,赵希刚. 2006. 鄂尔多斯盆地南缘店头铀矿床矿化特征及其与东胜铀矿床对比. 地质学报, 80(5): 724-733. [Chen H B,Xu G Z,Wang J P,Li W H,Zhao X G.2006. Mineralization characteristics of diantou uranium deposit in the southern margin of Ordos and in comparison with Dongsheng Uranium Deposit. Acta Geologica Sinica, 80(5): 724-733] [2] 陈庸勋,戴东林,杨昌贵. 1981. 岩相古地理研究方法: 以鄂尔多斯盆地为例. 北京: 地质出版社,96-115. [Chen Y X,Dai D L,Yang C G.1981. The Study Method of Lithofacies Paleogeography: A Case Study from Ordos Basin. Beijing: Geological Publishing House,96-115] [3] 冯增昭. 2004. 单因素分析多因素综合作图法: 定量岩相古地理重建. 古地理学报, 6(1): 3-19. [Feng Z Z.2004. Single factor analysis and multifactor comprehensive mapping method: Reconstruction of quantitative lithofacies palaeogeography. Journal of Palaeogeography(Chinese Edition), 6(1): 3-19] [4] 贺锋,张字龙,刘红旭,李平,李亚锋. 2017. 鄂尔多斯盆地南部彬县地区侏罗系直罗组古地貌及其对铀成矿的影响. 古地理学报, 19(4): 692-702. [He F,Zhang Z L,Liu H X,Li P,Li Y F.2017. Palaeogeomorphic restoring of the Jurassic Zhiluo Formation and its effect on uranium mineralization in Binxian area,southern Ordos Basin. Journal of Palaeogeography(Chinese Edition), 19(4): 692-702] [5] 胡俊华,郭科锋. 2017. 鄂尔多斯盆地南缘砂岩型铀矿找矿潜力分析. 铀矿地质, 33(3): 137-143. [Hu J H,Guo K F.2017. Prospecting potential analysis of sandstone-type uranium deposit in the southern margin of Ordos Basin. Uranium Geology, 33(3): 137-143] [6] 焦养泉,陈安平,王敏芳,吴立群,原海涛,杨琴,张承泽,徐志诚. 2005a. 鄂尔多斯盆地东北部直罗组底部砂体成因分析: 砂岩型铀矿床预测的空间定位基础. 沉积学报, 23(3): 371-379. [Jiao Y Q,Chen A P,Wang M F,Wu L Q,Yuan H T,Yang Q,Zhang C Z,Xu Z C.2005a. Genetic Analysis of the Bottom Sandstone of Zhiluo Formation Northeastern Ordos Basin: Predictive base of spatial orientation of sandstone-type uranium deposit. Acta Sedmentologica Sinica, 23(3): 371-379] [7] 焦养泉,陈安平,杨琴,彭云彪,吴立群,苗爱生,王敏芳,徐志诚. 2005b. 砂体非均质性是铀成矿的关键因素之一: 鄂尔多斯盆地东北部铀成矿规律探讨. 铀矿地质, 21(1): 8-15. [Jiao Y Q,Chen A P,Yang Q,Peng Y B,Wu L Q,Miao A S,Wang M F,Xu Z C.2005b. Sand body heterogeneity: One of the key factors of uranium metallogenesis in Ordos Basin. Uranium Geology, 21(1): 8-15] [8] 焦养泉,吴立群,杨生科,吕新彪,杨琴,王正海,王敏芳. 2006. 铀储层沉积学—砂岩型铀矿勘查与开发的基础. 北京: 地质出版社,1-331. [Jiao Y Q,Wu L Q,Yang S K,Lü X B,Yang Q,Wang Z H,Wang M F.2006. Uranium Reservoir Sedimentology: Basis of Sandstone-type Uranium Exploration and Development. Beijing: Geological Publishing House,1-331] [9] 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. 地学前缘, 22(1): 189-205. [Jiao Y Q,Wu L Q,Peng Y B,Rong H,Ji D M,Mia A S,Li H L.2015. Sedimentary-tectonic setting of the deposition-type uranium deposits forming in the Paleo-Asian tectonic domain,North China. Earth Science Frontiers, 22(1): 189-205] [10] 李晓翠,刘武生,贾立城,张成伟. 2014. 鄂尔多斯盆地南部砂岩型铀矿成矿预测. 铀矿地质, 30(6): 321-327. [Li X C,Liu W S,Jia L C,Zhang C W.2014. Prognosis of sandstone hosted uranium deposit in southern Ordos Basin. Uranium Geology, 30(6): 321-327] [11] 毛明陆. 1997. 渭北隆起北部构造分析与油气成藏预测. 西北大学博士论文. [Mao M L.1997. The Structural Analysis and Hydrocarbon Reservoiring Anticipation of the Northern Weibei Uplift. Doctoral Dissertation of Northwest University] [12] 彭小华,曹惠锋,刘厚宁. 2018. 鄂尔多斯盆地南部双龙地区铀成矿特征分析. 世界核地质科学, 35(1): 8-15. [Peng X H,Cao H F,Liu H N.2018. Analysis on uranium metallogenic characteristics in Shuanglong area,southern Ordos Basin. World Nuclear Geoscience, 35(1): 8-15] [13] 邱余波,伊海生,王果,张占峰,刘俊平,蒋宏,罗星刚,杜默,张磊. 2014. 伊利盆地洪海沟地区中侏罗统西山窑组上段沉积特征及其与铀成矿的关系. 古地理学报, 16(4): 537-547. [Qiu Y B,Yi H S,Wang G,Zhang Z F,Liu J P,Jiang H,Luo X G,Du M,Zhang L.2014. Sedimentary characteristics of the Upper Member of Middle Jurassic Xishanyao Formation and its relationship to uranium deposits in Honghaigou area of Ili Basin. Journal of Palaeogeography(Chinese Edition), 16(4): 537-547] [14] 司庆红,曹惠锋,李建国,司马献章,俞礽安,刘厚宁,刘晓雪,张超. 2019. 黄陵地区中生代含煤岩系油气与铀成矿的耦合关系. 煤炭地质与勘探, 47(1): 15-21. [Si Q H,Cao H F,Li J G,Sima X Z,Yu R A,Liu H N,Liu X X,Zhang C.2019. Coupling relationship between oil and gas of Mesozoic coal-bearing measures and uranium metallogenesis in Huangling area. Coal Geology & Exploration, 47(1): 15-21] [15] 孙立新,张云,张天福,程银行,李艳峰,马海林,杨才,郭佳成,鲁超,周晓光. 2017. 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. 地学前缘, 24(1): 32-51. [Sun L X,Zhang Y,Zhang T F,Cheng Y H,Li Y F,Ma H L,Yang C,Guo J C,Lu C,Zhou X G.2017. Jurassic sporopollen of Yan’an Formation and Zhiluo Formation in the northeastern Ordos Basin,Inner Mongolia,and its paleoclimatic significance. Earth Science Frontiers, 24(4): 32-51] [16] 吴仁贵,余达淦. 2005. 辫状沉积砂体与砂岩型铀矿的关系剖析. 铀矿地质, 21(2): 92-96. [Wu R G,Yu D G.2005. Discussion on relationship between sand body of braided stream channel sandstone type uranium deposit. Uranium Geology, 21(2): 92-96] [17] 吴仁贵,祝民强,余达淦,周万蓬. 2006. 鄂尔多斯盆地北部底河道砂岩型铀矿地质特征. 东华理工学院学报, 29(1): 1-6. [Wu R G,Zhu M Q,Yu D G,Zhou W P.2006. Geological characteristics of basal-channel sandstone type uranium deposits in the Northern of Ordos Basin. Journal of East China Institute of Technology, 29(1): 1-6] [18] 邢秀娟,柳益群,樊爱萍. 2006. 鄂尔多斯盆地店头地区砂岩型铀矿成因初步探讨. 中国地质, 33(3): 591-597. [Xing X J,Liu Y Q,Fan A F.2006. Genesis of sandstone-type uranium deposits: A case study in the Diantou area of the Ordos Basin. Geology in China, 33(3): 591-597] [19] 邢秀娟,柳益群,李卫红,龚斌利. 2008. 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. 地球学报, 29(2): 179-188. [Xing X J,Liu Y Q,Li W H,Gong B L.2008. Sandstone diagenesis and uranium mineralization of the Zhiluo Formation in the Diantou Area,Southern Ordos Basin. Acta Geoscientica Sinica, 29(2): 179-188] [20] 薛锐,赵俊峰,闫占冬,杨瑶,赵旭东,赵中平. 2017. 鄂尔多斯盆地北部侏罗系直罗组沉积特征与演化. 古地理学报, 19(6): 999-1012. [Xue R,Zhao J F,Yan Z D,Yang Y,Zhao X D,Zhao Z P.2017. Sedimentary characteristics and evolution of the Jurassic Zhiluo Formation in northern Ordos Basin. Journal of Palaeogeography(Chinese Edition), 19(6): 999-1012] [21] 张金带. 2004. 中国铀资源潜力概略分析与铀矿地质勘查战略. 铀矿地质, 20(5): 260-265. [Zhang J D.2004. Summarized analysison potential of uranium resources in China and strategy for uranium geologic exploration. Uranium Geology, 20(5): 260-265] [22] 张天福,孙立新,张云,程银行,李艳锋,马海林,鲁超,杨才,郭根万. 2016. 鄂尔多斯盆地北缘侏罗纪延安组、直罗组泥岩微量、稀土元素地球化学特征及其古沉积环境意义. 地质学报, 90(12): 3454-3472. [Zhang T F,Sun L X,Zhang Y,Cheng Y H,Li Y F,Ma H L,Lu C,Yang C,Guo G W.2016. Geochemical characteristics of the Jurassic Yan’an and Zhiluo Formations in the northern margin of Ordos Basin and their paleoenvironmental implications. Acta Geologica Sinica, 90(12): 3454-3472] [23] 张字龙,韩效忠,李胜祥,姚春玲,赵永安. 2010. 鄂尔多斯盆地东北部中侏罗统直罗组下段沉积相及其对铀成矿的控制作用. 古地理学报, 12(6): 749-758. [Zhang Z L,Han X Z,Li S X,Yao C L,Zhao Y A.2010. Sedimentary facies of the lower part of Middle Jurassic Zhiluo Formation in northeastern Ordos Basin and its controls on uranium mineralization. Journal of Plaeogeography(Chinese Edition), 12(6): 749-758] [24] 张字龙,范洪海,蔡煜琦,赵兴齐,刘红旭,贺锋,李平,杨梦佳. 2016. 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. 地质学报, 90(12): 3408-3423. [Zhang Z L,Fan H H,Cai Y Q,Zhao X Q,Liu H X,He F,Li P,Yang M J.2016. The organic geochemical characteristics of the Zhiluo Formation and its relationship with uranium mineralization in the Huangling Area,Ordos Basin. Acta Geologica Sinica, 90(12): 3408-3423] [25] 赵俊峰,刘池洋,喻林,梁积伟,黄雷. 2006. 鄂尔多斯盆地中侏罗世直罗—安定期沉积构造特征. 石油与天然气地质, 27(2): 159-166. [Zhao J F,Liu C Y,Yu L,Liang J W,Huang L.2006. Sedimentary tectonic features of Ordos Basin in Middle Jurassic Zhiluo Anding stages. Oil & Gas Geology, 27(2): 159-166] [26] 赵俊峰,刘池洋,喻林,黄雷,刘永涛,高飞. 2007. 鄂尔多斯盆地侏罗系直罗组砂岩发育特征. 沉积学报, 25(4): 535-544. [Zhao J F,Liu C Y,Yu L,Huang L,Liu Y T,Gao F.2007. Distributional and sedimentary characteristics of sandstones in Jurassic Zhiluo Formation,Ordos Basin. Acta Sedimentologica Sinica, 25(4): 535-544] [27] 赵俊峰,刘池洋,赵建设,王晓梅. 2008. 鄂尔多斯盆地侏罗系直罗组沉积相及其演化. 西北大学学报(自然科学版), 38(3): 480-486. [Zhao J F,Liu C Y,Zhao J S,Wang X M.2008. Sedimentary facies and its evolution of Jurassic Zhiluo formation in Ordos Basin. Journal of Northwest University(Natural Science Edition), 38(3): 480-486] [28] 赵俊峰,刘池洋,梁积伟,王晓梅,喻林,黄雷,刘永涛. 2010. 鄂尔多斯盆地直罗组—安定组沉积期原始边界恢复. 地质学报, 84(2): 553-569. [Zhao J F,Liu C Y,Liang J W,Wang X M,Yu L,Huang L,Liu Y T.2010. Restoration of the original sedimentary boundary of the middle Jurassic Zhiluo Formation-Anding Formation in the Ordos Basin. Acta Geologica Sinica, 84(2): 553-569] [29] Hall S M,Mihalasky M J,Tureck K R,Hammarstrom J M,Hannon M T.2017. Genetic and grade and tonnage models for sandstone-hosted roll-type uranium deposits,Texas Coastal Plain,USA. Ore Geology Reviews, 80: 716-753. [30] Jaireth S,Roach I C,Bastrakov E,Liu S F.2015. Basin-related uranium mineral systems in Australia: A review of critical features. Ore Geology Reviews, 76: 360-394. [31] Liu C Y,Zhao H G,Zhao J F,Wang J Q,Zhang D D,Yang M H.2008. Temporal-spatial coordinates of evolution of the Ordos basin and its mineralization responses. Acta Geologica Sinica(English Edition), 82: 1229-1243. [32] Ullah K,Khattak N U,Qureshi A A,Akram M,Khan H A,Nisar A.2005. Search for uranium source in warcha Sandstone,Salt Range,Pakistan,using SSNTD technique. Radiation Measurements, 40: 491-495.
