PDF(3262 KB)
鄂尔多斯盆地西南缘中下侏罗统地层物源及构造演化对铀成矿的制约
俞礽安, 李彤, 杨桐旭, 赵华雷, 涂家润, 胡永兴, 唐永香
PDF(3262 KB)
PDF(3262 KB)
鄂尔多斯盆地西南缘中下侏罗统地层物源及构造演化对铀成矿的制约
Provenance and Tectonic Evolution of the Middle and Lower Jurassic Strata Constraints on the Uranium Mineralization in Southwest Margin of Ordos Basin
鄂尔多斯盆地西南缘位于阿拉善地块、秦岭造山带与祁连造山带3个构造单元的交汇部位，给含铀岩系地层的物源体系和铀成矿作用研究带来一定困难.通过选取泾川研究区的直罗组和延安组砂岩进行碎屑锆石U-Pb测年和微量元素研究，分析结果显示：泾川地区直罗组砂岩的碎屑锆石年龄呈215~767 Ma和 1 501~1 905 Ma；延安组砂岩的碎屑锆石年龄呈215~453 Ma、1 506~1 918 Ma和2 136~2 579 Ma.与源区同位素年代学对比认为直罗组和延安组砂岩的物源成分较为复杂，主要来自于阿拉善地块，其次来自于华北板块北缘和北祁连地区.从延安组到直罗组沉积期，祁连山和阿拉善陆块发生了快速隆升和剥蚀，为直罗组提供了物源，并且古生代和中生代侵入岩体提供物源的占比逐渐增大.研究西部靠近盆缘地区以中侏罗统砂岩层为找矿目的层，靠近盆内含矿层位逐渐变年轻.
The southwest margin of the Ordos basin is located at the intersection of the Alxa massif, the Qinling orogenic belt and the Qilian orogenic belt, which is challenging to the study of the provenance and uranium mineralization of the uranium bearing rock. This paper selects the Zhiluo Formation and Yan’an Formation sandstones in the Jingchuan area to conduct clastic zircon U-Pb dating and trace element research. The analysis results show that the clastic zircon ages of the Zhiluo Formation sandstones in Jingchuan area are 215-767 Ma and 1 501-1 905 Ma; The clastic zircon ages of Yan’an Formation sandstones are 215-453 Ma, 1 506-1 918 Ma and 2 136-2 579 Ma, respectively. Compared with the isotopic chronology of the source area, it is believed that the provenance components of the Zhiluo and Yan’an Formation sandstones are relatively complex, mainly from the Alxa block, followed by the northern margin of the North China plate and the North Qilian area. During the sedimentary period from Yan’an Formation to Zhiluo Formation, Qilian Mountain and Alxa landmass were rapidly uplifted and denuded, providing provenance for Zhiluo Formation, and the proportion of provenance provided by Paleozoic and Mesozoic intrusive rocks gradually increased. The study shows that the strata of middle Jurassic can be taken as the prospecting target strata in the west margin of basin, and the ore bearing strata near the basin gradually become younger.
鄂尔多斯盆地 / 泾川 / 中下侏罗统 / 碎屑锆石U-Pb年龄 / 物源 / 矿床 / 构造地质
Ordos basin / Jingchuan area / Middle and Lower Jurassic strata / U-Pb ages of detrital zircons / provenance / deposits / tectonics
P611
|
Belousova, E., Griffin, W., O’Reilly, S. Y., et al., 2002. Igneous Zircon: Trace Element Composition as an Indicator of Source Rock Type. Contributions to Mineralogy and Petrology, 143(5): 602-622. https://doi.org/10.1007/s00410-002-0364-7
|
|
Chen, J.L., He, S.P., Wang, H.L., et al., 2006. Zircon LA-ICPMS U-Pb Age of Mafic Dykes in the Area between the Qinling and the Qilian Orogenic Belts and Its Geological Implications. Acta Petrologica et Mineralogica, 25(6): 455-462 (in Chinese with English abstract).
|
|
Chen, J.L., Li, H.B., Wang, H.L., et al., 2007. LA-ICPMS Zircon U-Pb Dating of a Quartz Diorite Pluton from Wangjiacha, the Junction Area between the Qinling and Qilian Orogenic Belts and Its Tectonic Significance. Journal of Jilin University (Earth Science Edition), 37(3): 423-431 (in Chinese with English abstract)
|
|
Duan, J.Y., Liu, P.J., Xia, D.X., 2002. The Preliminary Research on Tectonic Pattern and Tectonic Evolution of Mesoproterozoic-Paleozoic in North China Plate. Geoscience, 16(4): 331-338 (in Chinese with English abstract).
|
|
Fan, H.R., Hu, F.F., Yang, K.F., et al., 2009. Geochronology Framework of Late Paleozoic Dioritic-Granitic Plutons in the Bayan Obo Area, Inner Mongolia, and Tectonic Significance. Acta Petrologica Sinica, 25(11): 2933-2938 (in Chinese with English abstract).
|
|
Geng, Y.S., Wang, X.S., Shen, Q.H., et al., 2007. Chronology of the Precambrian Metamorphic Series in the Alxa Area, Inner Mongolia. Geology in China, 34(2): 251-261 (in Chinese with English abstract).
|
|
Geng, Y.S., Zhou, X.W., 2010. Early Neoproterozoic Granite Events in Alax Area of Inner Mongolia and Their Geological Significance: Evidence from Geochronology. Acta Petrologica et Mineralogica, 29(6): 779-795 (in Chinese with English abstract).
|
|
Geng, Y.S., Zhou, X.W., Wang, X.S., et al., 2009. Late-Paleoproterozoic Granite Events and Their Geological Significance in Helanshan Area, Inner Mongolia: Evidence from Geochronology. Acta Petrologica Sinica, 25(8): 1830-1842 (in Chinese with English abstract).
|
|
Gong, J.H., Zhang, J.X., Yu, S.Y., 2013. Redefinition of the “Longshoushan Group” Outcropped in the Eastern Segment of Longshoushan on the Southern Margin of Alxa Block: Evidence from Detrital Zircon U-Pb Dating Results. Acta Petrologica et Mineralogica, 32(1): 1-22 (in Chinese with English abstract).
|
|
Guo, P., Liu, C.Y., Han, P., et al., 2017. Geochronology of Detrital Zircon from the Lower-Middle Jurassic Strata in the Southwestern Ordos Basin, China, and Its Geological Significance. Geotectonica et Metallogenia, 41(5): 892-907 (in Chinese with English abstract).
|
|
He, F., Xu, L.Q., Su, H.W., et al., 2004. Characteristics and Tectonic Setting of Middle-Permian A-Type Granites in Tianshuijing Area, West of Inner Mongolia. Northwestern Geology, 37(3): 7-14 (in Chinese with English abstract).
|
|
Huang, Z.G., 2016. Fission Track Constraints on Mesozoic Cenozoic Ascending Evolution of the Middle Northern Segment of the Luliang Mountains. Taiyuan University of Technology, Taiyuan (in Chinese with English abstract).
|
|
Jiao, Y.Q., Wu, L.Q., Peng, Y.B., et al., 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 (in Chinese with English abstract).
|
|
Jiao, Y.Q., Wu, L.Q., Rong, H., et al., 2022. Sedimentation, Diagenesis and Uranium Mineralization：Innovative Discoveries and Cognitive Challenges in Study of Sandstone-Type Uranium Deposits in China. Earth Science, 47(10): 3580-3603 (in Chinese with English abstract).
|
|
Jin, R.S., Teng, X.M., 2022. Large Scale Sandstone-Type Uranium Mineralization in Northern China. North China Geology, 45(1): 42-57 (in Chinese with English abstract).
|
|
Li, J.Y., Zhang, J., Qu, J.F., 2012. Amalgamation of North China Craton with Alxa Block in the Late of Early Paleozoic: Evidengce from Sedmentary Sequences in the Niushou Mountain, Ningxia Hui Autonomous Region, NW China. Geological Review, 58(2): 208-214 (in Chinese with English abstract).
|
|
Li, K.Y., Li, W.H., Liu, Z., et al., 2016. Characteristics of Early Cretaceous Liupanshan Group Prototype Basin in Liupanshan Basin, Ningxia. Geological Bulletin of China, 35(S1): 383-389 (in Chinese with English abstract).
|
|
Liu, C. F., 2010. Paleozoic Early Mesozoic Magmatic Rock Belt in Siziwangqi Area, Inner Mongolia and Its Tectonic Significance (Dissertation). China University of Geosciences, Beijing (in Chinese with English abstract).
|
|
Liu, C.Y., Wang, J.Q., Zhang, D.D., et al., 2021. Genesis of Rich Hydrocarbon Resources and Their Occurrence and Accumulation Characteristics in the Ordos Basin. Oil & Gas Geology, 42(5): 1011-1029 (in Chinese with English abstract).
|
|
Liu, S.P., Liu, X.F., 2002. Structural Types and Its Relation with Oil and Gas of Bayanhot Basin. Journal of Southwest Petroleum Institute, 24(3): 24-27, 4 (in Chinese with English abstract).
|
|
Ludwig, K.R., 2009. Isoplot 3.71: A Geochronological Tool- Kit for Microsoft Excel. Berkeley Geochronology Center Special Publication, Berkeley. https://doi.org/10.13140/RG.2.1.3679.3440
|
|
Miao, P.S., Chen, Y., Cheng, Y.H., et al., 2020. New Deep Exploration Discoveries of Sandstone-Type Uranium Deposits in North China. Geotectonica et Metallogenia, 44(4): 563-575 (in Chinese with English abstract).
|
|
Pei, X.Z., Li, Z.C., Li, R.B., et al., 2012. LA-ICP-MS U-Pb Ages of Detrital Zircons from Metamorphic Clastic Rocks of the Early Paleozoic Huluhe Group in the Eastern Segment of the Qilian Orogenic Belt: Source Area Characteristics and Definition of Sedimentary Age. Geological Frontier,19 (5): 205-224 (in Chinese with English abstract).
|
|
Ren, Y. S., Yang, X. Y., Miao, P. S., et al., 2022. Mineralogical and Geochemical Research on Pengyang Deposit: A Peculiar Eolian Sandstone-Hosted Uranium Deposit in the Southwest of Ordos Basin. Ore Geology Reviews, 141: 104571. https://doi.org/10.1016/j.oregeorev.2021.104571
|
|
Sun, S. S., Mcdonough, W. F., 1989. Chemical and Isotopic Systematics of Oceanic Basalts: Implications for Mantle Composition and Processes. Geological Society, London, Special Publications, 42(1): 313-345.
|
|
Wan, T.F., 2020. Discussion on the Liupanshan-Helanshan Collision Zone. Geotectonica et Metallogenia, 44(5): 845-851 (in Chinese with English abstract).
|
|
Wan, Y.L., 2011.Study on Coupling Relationship between Provenance and Diagenesis of Yanchang Formation in the Southern Margin of Ordos Basin (Dissertation). Chengdu University of Technology, Chengdu (in Chinese with English abstract).
|
|
Wang, G.Z., Liang, C.C., Nie, X.C., et al., 2016. Relation between Jurassic Palaeogeomorphology and Hydrocarbon Accumulation in Zhenjing. Special Oil & Gas Reservoirs, 23(4): 46-50, 153 (in Chinese with English abstract).
|
|
Wang, M., Luo, J.L., Li, M., et al., 2013. Provenance and Tectonic Setting of Sandstone-Type Uranium Deposit in Dongsheng Area, Ordos Basin: Evidence from U-Pb Age and Hf Isotopes of Detrital Zircons. Acta Petrologica Sinica, 29(8): 2746-2758 (in Chinese with English abstract).
|
|
Wang, S.D., 2014.Tectonic Uplift History of the Southern Margin of Liupan Mountain. Northwest University, Xi’an (in Chinese with English abstract).
|
|
Wu, C.H., Sun, M., Li, H.M., et al., 2006. LA-ICP-MS U-Pb Zircon Ages of the Khondalites from the Wulashan and Jining High-Grade Terrain in Northern Margin of the North China Craton: Constraints on Sedimentary Age of the Khondalite. Acta Petrologica Sinica, 22(11): 2639-2654 (in Chinese with English abstract).
|
|
Xia, X. P., Sun, M., Zhao, G. C., et al., 2006. U-Pb and Hf Isotopic Study of Detrital Zircons from the Wulashan Khondalites: Constraints on the Evolution of the Ordos Terrane, Western Block of the North China Craton. Earth and Planetary Science Letters, 241(3/4): 581-593. https://doi.org/10.1016/j.epsl.2005.11.024
|
|
Xu, X.Y., Wang, H.L., Chen, J.L., et al., 2008. Zircon U-Pb Dating and Petrogenesis of Xinglongshan Group Basic Volcanic Rocks at Eastern Segment of Middle Qilian Mts. Acta Petrologica Sinica, 24(4): 827-840 (in Chinese with English abstract).
|
|
Yan, X.X., 2001. The Analysis of the Sediment Source and Reconstrucation of the Framework of the Depositional Environment in the Mesozoic Ordos Basin. Northwest University, Xi’an (in Chinese with English abstract).
|
|
Yi, C., Han, X.Z., Li, X.D., et al., 2014. Study on Sandstone Petrologic Feature of the Zhiluo Formation and Its Controls on Uranium Mineralization in Northeastern Ordos Basin. Geological Journal of China Universities, 20(2): 185-197 (in Chinese with English abstract).
|
|
Yu, R.A., Si, Q.H., Wang, S.B., et al., 2020a. Geochemical Characteristics of Sandstone and U-Pb Geochronology of Clastic Zircons of Zhiluo Formation in Shicaochun Area, Western Margin of Ordos Basin: Implications for Tectonic Setting and Provenance. Geotectonics and Metallogenesis,44(4): 754-771 (in Chinese with English abstract).
|
|
Yu, R.A., Zhu, Q., Wen, S.B., et al., 2020b. Tectonic Setting and Provenance Analysis of Zhiluo Formation Sandstone of Tarangaole Area in the Ordos Basin. Earth Science, 45(3): 829-843 (in Chinese with English abstract).
|
|
Yu, R. G., Wang, S. B., Zhu, Q., et al., 2021. Zircon U-Pb Ages and Provenance Characteristics of the Zhiluo Formation Sandstones and the Formation Background of the Uranium Deposit in Huangling Area, Ordos Basin, China. China Geology, 4(4): 600-615. https://doi.org/10.31035/cg2021006
|
|
Zeng, Q.D., Liu, J.M., Xiao, W.J., et al., 2012. Mineralizing Types, Geological Characteristics and Geodynamic Background of Triassic Molybdenum Deposits in the Northern and Southern Margins of North China Craton. Acta Petrologica Sinica, 28(2): 357-371 (in Chinese with English abstract).
|
|
Zhang, T. F., Cheng, X. Y., Wang, S. Y., et al., 2022. Middle Jurassic-Early Cretaceous Drastic Paleoenvironmental Changes in the Ordos Basin: Constraints on Sandstone-Type Uranium Mineralization. Ore Geology Reviews, 142: 104652. https://doi.org/10.1016/j.oregeorev.2021.104652
|
|
Zhao, H.G., Liu, C.Y., 2003. Approaches and Prospects of Provenance Analysis. Acta Sedimentologica Sinica, 21(3): 409-415 (in Chinese with English abstract).
|
|
Zhao, H.L., Zang, Y.L., Li, J.G., et al., 2022. Preliminary Study on the Occurrence State of Uranium in the Lower Cretaceous Luohe Formation of Pengyang Uranium Deposit, Southwestern Ordos Basin. North China Geology, 45(4): 21-27 (in Chinese with English abstract).
|
|
Zhao, J.F., Liu, C.Y., Zhao, J.S., et al., 2008. Sedimentary Facies and Its Evolution of Jurassic Zhiluo Formation in Ordos Basin. Journal of Northwest University (Natural Science Edition), 38(3): 480-486 (in Chinese with English abstract).
|
|
Zhou, X., Zhang, Y., Yue, X.Y., 2014. Geochemical Characteristics and Its Tectonic Setting of Nanyinger Formation from Qilian Orogenic Belt. Xinjiang Geology, 32(2): 244-249 (in Chinese with English abstract).
|
|
Zhu, Q., Si, Q.H., Li, J.G., et al., 2022. Two Genesis of Gray Sandstone and Their Uranium-Bearing Analysis of Lower Cretaceous Luohe Formation in Southwestern Ordos Basin. Earth Science (in Chinese with English abstract).
|
/
| 〈 |
|
〉 |
AI Summary
