Tectonic Evolution of Southeast Central Asian Orogenic Belt: Evidence from Geochronological Data and Paleontology of the Early Paleozoic Deposits in Inner Mongolia

Abstract

In this study, we present detrital zircon U-Pb dating and paleontological data for the newly identified Ayadeng Formation in the northern margin of the North China Block (NCB) and Xibiehe Formation (molasse) in the Bainaimiao arc belt (BAB), which could provide strong evidence indicating the affinity of the BAB and the evolution of the southeast Central Asian orogenic belt (CAOB). Zircon U-Pb data of siltstone samples and paleontological data indicate the Ayadeng Formation dates back to the Early Ordovician. Although its location is near the NCB, its zircon age spectra and paleontology share a closer affinity with those of Tarim and NE Gondwana, as the U-Pb data suggest an age range of 490–2 192 Ma (peak age=629, 788, 965 and 1 935 Ma), and similar gastropod fossils are found in Tarim and NE Gondwana. The U-Pb ages of meta-sandstone samples in the Xuniwusu Formation indicate a shared inheritance with the Ayadeng Formation (before 440 Ma), and the U-Pb ages of sandstone samples in the Xibiehe Formation are concentrated, with age peaks centered at ca. 420 Ma. Fossil corals occur in these two formations, and their age components also indicate a collisional setting. Therefore, it is speculated that the BAB drifted away from Tarim or NE Gondwana during the Ordovician and became attached to northern NCB between 440–420 Ma as an exotic terrane. During the Early Paleozoic, there may have occurred a collision between an arc and a continental block.

Keywords

detrital zircon / paleontology / Bainaimiao arc belt / North China Block

References

Andersen T. Correction of Common Lead in U-Pb Analyses That do not Report ²⁰⁴Pb. Chemical Geology, 2002, 192(1/2): 59-79

Badarch G, Cunningham W D, Windley B F. A New Terrane Subdivision for Mongolia: Implications for the Phanerozoic Crustal Growth of Central Asia. Journal of Asian Earth Sciences, 2002, 21(1): 87-110

Bai X H, Xu Z Y, Liu Z H, . Zircon U-Pb Dating, Geochemistry and Geological Significance of the Early Silurian Plutons from the Southeastern Margin of the Central Asian Orogenic Belt. Acta Petrologica Sinica, 2015, 31(1): 67-79

Belousova E, Griffin W, O’Reilly S Y, . Igneous Zircon: Trace Element Composition as an Indicator of Source Rock Type. Contributions to Mineralogy and Petrology, 2002, 143(5): 602-622

Bureau of GeologyMineral Resources of Inner Mongolia BGMRIM Regional Geology of Nei Mongol (Inner Mongolia) Autonomous Region, 1991, Beijing: Geological Publishing House, 1-725

Bureau of Geology of Inner Mongolia BGIM,Institute of Geological Sciences of Northeast China IGSNC Paleontology Atlas of North China (Inner Mongolia: Paleozoic), 1976, Beijing: Geological Publishing House, 1-502

Cawood P A, Hawkesworth C J, Dhuime B. Detrital Zircon Record and Tectonic Setting. Geology, 2012, 40(10): 875-878

Chen C, Ren Y S, Zhao H L, . Permian Age of the Wudaogou Group in Eastern Yanbian: Detrital Zircon U-Pb Constraints on the Closure of the Palaeo-Asian Ocean in Northeast China. International Geology Review, 2014, 56(14): 1754-1768

Chen X W, Mou C L, Zhou K K, . Sedimentary Facies and Palaeogeography of the North China Region during the Ordovician. Sedimentary Geology and Tethyan Geology, 2015, 35(4): 1-11

Chen Y, Zhang Z C, Qian X Y, . Early to Mid-Paleozoic Magmatic and Sedimentary Records in the Bainaimiao Arc: An Advancing Subduction-Induced Terrane Accretion along the Northern Margin of the North China Craton. Gondwana Research, 2020, 79: 263-282.

Cocks L R M, Torsvik T H. Earth Geography from 500 to 400 Million Years Ago: A Faunal and Palaeomagnetic Review. Journal of the Geological Society, 2002, 159(6): 631-644

de Jong K, Xiao W, Windley B F, . Ordovician ⁴⁰Ar/³⁹Ar Phengite Ages from the Blueschist-Facies Ondor Sum Subduction-Accretion Complex (Inner Mongolia) and Implications for the Early Paleozoic History of Continental Blocks in China and Adjacent Areas. American Journal of Science, 2006, 306(10): 799-845

Dong S L, Li Z, Jiang L. The Ordovician-Silurian Tectonic Evolution of the Northeastern Margin of the Tarim Block, NW China: Constraints from Detrital Zircon Geochronological Records. Journal of Asian Earth Sciences, 2016, 122: 1-19.

Fortey R A, Cocks L R M. Palaeontological Evidence Bearing on Global Ordovician-Silurian Continental Reconstructions. Earth-Science Reviews, 2003, 61(3/4): 245-307

Guan Q B, Liu Z H, Liu Y J, . Geochemistry and Zircon U-Pb Geochronology of Mafic Rocks in the Kaiyuan Tectonic Mélange of Northern Liaoning Province, NE China: Constraints on the Tectonic Evolution of the Paleo-Asian Ocean. Geological Journal, 2019, 54(2): 656-678

Hu X, Xu C S, Niu S G. Evolution of the Early Paleozoic Continental Margin in Northern Margin of the North China Platform, 1990, Beijing: Peking University Press, 1-215

Hubei Institute of Geological Sciences HIGS, Henan Bureau of Geology, Hubei Bureau of Geology Paleontology Atlas of South-Central China (Early Paleozoic), 1977, Beijing: Geological Publishing House, 1-470

Jahn B M, Wu F Y, Chen B. Granitoids of the Central Asian Orogenic Belt and Continental Growth in the Phanerozoic. Earth and Environmental Science Transactions of the Royal Society of Edinburgh, 2000, 91(1/2): 181-193

Jian P, Liu D Y, Kröner A, . Time Scale of an Early to Mid-Paleozoic Orogenic Cycle of the Long-Lived Central Asian Orogenic Belt, Inner Mongolia of China: Implications for Continental Growth. Lithos, 2008, 101(3/4): 233-259

Jian P, Liu D Y, Kröner A, . Evolution of a Permian Intraoceanic Arc-Trench System in the Solonker Suture Zone, Central Asian Orogenic Belt, China and Mongolia. Lithos, 2010, 118(1/2): 169-190

Khain E V, Bibikova E V, Salnikova E B, . The Palaeo-Asian Ocean in the Neoproterozoic and Early Palaeozoic: New Geochronologic Data and Palaeotectonic Reconstructions. Precambrian Research, 2003, 122(1/2/3/4): 329-358

Koschek G. Origin and Significance of the SEM Cathodoluminescence from Zircon. Journal of Microscopy, 1993, 171(3): 223-232

Li J Y. Permian Geodynamic Setting of Northeast China and Adjacent Regions: Closure of the Paleo-Asian Ocean and Subduction of the Paleo-Pacific Plate. Journal of Asian Earth Sciences, 2006, 26(3/4): 207-224

Li S Z, Zhao S J, Liu X, . Closure of the Proto-Tethys Ocean and Early Paleozoic Amalgamation of Microcontinental Blocks in East Asia. Earth-Science Reviews, 2018, 186: 37-75.

Li Z X, Powell C M. An Outline of the Palaeogeographic Evolution of the Australasian Region since the Beginning of the Neoproterozoic. Earth-Science Reviews, 2001, 53(3/4): 237-277

Li Z X, Bogdanova S V, Collins A S, . Assembly, Configuration, and Break-Up History of Rodinia: A Synthesis. Precambrian Research, 2008, 160(1/2): 179-210

Liu D Y, Jian P, Zhang Q, . SHRIMP Dating of Adakites in the Tulingkai Ophiolite, Inner Mongolia: Evidence for the Early Paleozoic Subduction. Acta Geologica Sinica, 2003, 77(3): 317-327

Liu Y S, Hu Z C, Zong K Q, . Reappraisement and Refinement of Zircon U-Pb Isotope and Trace Element Analyses by LA-ICP-MS. Chinese Science Bulletin, 2010, 55(15): 1535-1546

Ludwig K R. Isoplot 3.09-A Geochronological Toolkit for Microsoft Excel, 2003, Berkeley: Berkeley Geochronology Center Special Publication, 1-4

Lyu H D, Wang S J, Xu Z Y, . Sedimentary Background of Late Paleozoic Carboniferous in Ondor Sum, Inner Mongolia: Evidence from Sedimentary Petrology, Paleontology and Zircon U-Pb Dating. Global Geology, 2019, 38(2): 322-338

Ma S X, Wang Z Q, Zhang Y L, . Bainaimiao Arc as an Exotic Terrane along the Northern Margin of the North China Craton: Evidences from Petrography, Zircon U-Pb Dating, and Geochemistry of the Early Devonian Deposits. Tectonics, 2019, 38(8): 2606-2624

Morris J D, Ryan J D. Morris J D, Ryan J G. Subduction Zone Processes and Implications for Changing Composition of the Upper and Lower Mantle. Treatise on Geochemistry, 2003, Amsterdam: Elsevier, 451-470

Mossakovsky A A, Ruzhentsev S V, Samygin S G, . Central Asian Fold Belt: Geodynamic Evolution and History of Formation. Geotectonics, 1993, 6: 3-33.

Nie S Q, Huang J S, Li S Z. Globle Plate Reconstruction from Ordovician to Silurian: Kinematics Test of Their Locations of Three China’s Continents and Ocean-Continent Configuration. Marine Geology & Quaternary Geology, 2015, 35(4): 177-188

Qian X Y, Zhang Z C, Chen Y, . Geochronology and Geochemistry of Early Paleozoic Igneous Rocks in Zhurihe Area, Inner Mongolia and Their Tectonic Significance. Earth Science, 2017, 42(9): 1472-1494

Rojas-Agramonte Y, Kröner A, Demoux A, . Detrital and Xenocrystic Zircon Ages from Neoproterozoic to Palaeozoic Arc Terranes of Mongolia: Significance for the Origin of Crustal Fragments in the Central Asian Orogenic Belt. Gondwana Research, 2011, 19(3): 751-763

Regional Geological Survey Brigade of Xinjiang Geology Bureau RGSBXGB, Institute of Geological Sciences of Xinjiang Geology Bureau,Xinjiang Petroleum Geology Survey Bureau Paleontology Atlas of Northwest China (Xinjiang Uygur Autonomous Region: Late Proterozoic-Early Paleozoic), 1981, Beijing: Geological Publishing House, 1-332

Şengör A M C, Natal’in B A, Burtman V S. Evolution of the Altaid Tectonic Collage and Palaeozoic Crustal Growth in Eurasia. Nature, 1993, 364(6435): 299-307

Tang K D, Yan Z Y. Regional Metamorphism and Tectonic Evolution of the Inner Mongolian Suture Zone. Journal of Metamorphic Geology, 1993, 11(4): 511-522

Tang K D. Tectonic Development of Paleozoic Foldbelts at the North Margin of the Sino-Korean Craton. Tectonics, 1990, 9(2): 249-260

Tianjin Institute of GeologyMineral Resources TIGMR Paleontology Atlas of North China (Paleozoic), 1985, Beijing: Geological Publishing House, 1-731

Veevers J J, Saeed A, Belousova E A, . U-Pb Ages and Source Composition by Hf-Isotope and Trace-Element Analysis of Detrital Zircons in Permian Sandstone and Modern Sand from Southwestern Australia and a Review of the Paleogeographical and Denudational History of the Yilgarn Craton. Earth-Science Reviews, 2005, 68(3/4): 245-279

Wan Y S, Liu D Y, Wang W, . Provenance of Meso- to Neoproterozoic Cover Sediments at the Ming Tombs, Beijing, North China Craton: An Integrated Study of U-Pb Dating and Hf Isotopic Measurement of Detrital Zircons and Whole-Rock Geochemistry. Gondwana Research, 2011, 20(1): 219-242

Wang W Q. Late Paleozoic Tectonic Evolution of the Central-Northern Margin of the North China Plate: Constraints from Zircon U-Pb Ages and Geochemistry of Igneous Rocks in Ondor Sum-Jining Area, 2014, Changchun: Jilin University, 1-169

Wang S J, Liu Y, Dong X J, . Permian Tectonic Evolution in the Middle Part of Central Asian Orogenic Belt: Evidence from Newly Identified Volcanic Rocks in the Bilutu Area, Inner Mongolia. Acta Geologica Sinica—English Edition, 2019, 93(5): 1281-1299

Wang X F, Chen X H. Paleobiogeography and Paleoclimatology of Ordovician in China. Professional Papers of Stratigraphy and Paleontology, 1999, 27: 1-27.

Wang Z W, Pei F P, Xu W L, . Tectonic Evolution of the Eastern Central Asian Orogenic Belt: Evidence from Zircon U-Pb-Hf Isotopes and Geochemistry of Early Paleozoic Rocks in Yanbian Region, NE China. Gondwana Research, 2016, 38: 334-350.

Wilde S A. Final Amalgamation of the Central Asian Orogenic Belt in NE China: Paleo-Asian Ocean Closure versus Paleo-Pacific Plate Subduction—A Review of the Evidence. Tectonophysics, 2015, 662: 345-362.

Windley B F, Alexeiev D, Xiao W J, . Tectonic Models for Accretion of the Central Asian Orogenic Belt. Journal of the Geological Society, 2007, 164(1): 31-47

Wright N, Zahirovic S, Müller R D, . Towards Community-Driven Paleogeographic Reconstructions: Integrating Open-Access Paleogeographic and Paleobiology Data with Plate Tectonics. Biogeosciences, 2013, 10(3): 1529-1541

Wu F Y, Wang J G, Liu C Z, . Intra-Oceanic Arc: Its Formation and Evolution. Acta Petrologica Sinica, 2019, 35(1): 1-15

Xiao W J, Huang B C, Han C M, . A Review of the Western Part of the Altaids: A Key to Understanding the Architecture of Accretionary Orogens. Gondwana Research, 2010, 18(2/3): 253-273

Xiao W J, Windley B F, Hao J, . Accretion Leading to Collision and the Permian Solonker Suture, Inner Mongolia, China: Termination of the Central Asian Orogenic Belt. Tectonics, 2003, 22(6): 1069

Xiao W J, Windley B, Sun S, . A Tale of Amalgamation of Three Permo-Triassic Collage Systems in Central Asia: Oroclines, Sutures, and Terminal Accretion. Annual Review of Earth and Planetary Sciences, 2015, 43 1 477-507

Xiong C, Niu Y L, Chen H D, . Detrital Zircon U-Pb Geochronology and Geochemistry of Late Neoproterozoic-Early Cambrian Sedimentary Rocks in the Cathaysia Block: Constraint on Its Palaeo-Position in Gondwana Supercontinent. Geological Magazine, 2019, 156(9): 1587-1604

Xu B, Charvet J, Chen Y, . Middle Paleozoic Convergent Orogenic Belts in Western Inner Mongolia (China): Framework, Kinematics, Geochronology and Implications for Tectonic Evolution of the Central Asian Orogenic Belt. Gondwana Research, 2013, 23(4): 1342-1364

Xu B, Xu Y, Li J, . Age of the Ondor Sum Group in Western Inner Mongolia and Its Position in the Central Asia Orogenic Belt. Earth Science Frontiers, 2016, 23(6): 120-127

Yü W, Wang H J, Li Z S. Fossil Gastropods from China, 1963, Beijing: Science Press, 362

Yuan H L, Gao S, Liu X M, . Accurate U-Pb Age and Trace Element Determinations of Zircon by Laser Ablation-Inductively Coupled Plasma-Mass Spectrometry. Geostandards and Geoanalytical Research, 2004, 28(3): 353-370

Zhang C. Rock Association, Zricon U-Pb Geochronology of Bainaimaio Group in Sonid Youqi, Inner Mongolia and Its Geological significance, 2013, Changchun: Jilin University, 1-73

Zhang C, Quan J Y, Liu Z H, . Geochemical Characteristics and Geological Significance of Meta-Volcanic Rocks of the Bainaimiao Group, Sonid Right Banner, Inner Mongolia, China. Journal of Earth Science, 2019, 30(2): 272-285

Zhang D H, Huang B C, Zhao J, . Permian Paleogeography of the Eastern CAOB: Paleomagnetic Constraints from Volcanic Rocks in Central Eastern Inner Mongolia, NE China. Journal of Geophysical Research: Solid Earth, 2018, 123(4): 2559-2582

Zhang J F, Liu Z H, Guan Q B, . Age and Geological Significance of Xuniwusu Formation from Bainaimiao Area of Sonid Youqi, Inner Mongolia. Acta Petrologica Sinica, 2017, 33(10): 3147-3160

Zhang S H, Zhao Y, Liu J M, . Geochronology, Geochemistry and Tectonic Setting of the Late Paleozoic-Early Mesozoic Magmatism in the Northern Margin of the North China Block: A Preliminary Review. Acta Petrologica et Mineralogica, 2010, 29(6): 824-842

Zhang S H, Zhao Y, Ye H, . Origin and Evolution of the Bainaimiao Arc Belt: Implications for Crustal Growth in the Southern Central Asian Orogenic Belt. Geological Society of America Bulletin, 2014, 126(9/10): 1275-1300

Zhang W, Jian P, Kröner A, . Magmatic and Metamorphic Development of an Early to Mid-Paleozoic Continental Margin Arc in the Southernmost Central Asian Orogenic Belt, Inner Mongolia, China. Journal of Asian Earth Sciences, 2013, 72: 63-74.

Zhang Y Q, Hao J F, Sun Y X, . Age of the Ayadeng and Sailinhudong Formations in Central Inner Mongolia on the Study of Acritarch. Journal of Stratigraphy, 2004, 28(3): 235-243

Zhao G C, Sun M, Wilde S A, . Late Archean to Paleoproterozoic Evolution of the North China Craton: Key Issues Revisited. Precambrian Research, 2005, 136(2): 177-202

Zhao G C, Wang Y J, Huang B C, . Geological Reconstructions of the East Asian Blocks: From the Breakup of Rodinia to the Assembly of Pangea. Earth-Science Reviews, 2018, 186: 262-286.

Zhao P, Chen Y, Xu B, . Did the Paleo-Asian Ocean between North China Block and Mongolia Block Exist during the Late Paleozoic? First Paleomagnetic Evidence from Central-Eastern Inner Mongolia, China. Journal of Geophysical Research: Solid Earth, 2013, 118(5): 1873-1894

Zhao Y, Chen B, Zhang S H, . Pre-Yanshanian Geological Events in the Northern Margin of the North China Craton and Its Adjacent Areas. Geology in China, 2010, 37(4): 900-915

Zhou H, Pei F P, Zhang Y, . Origin and Tectonic Evolution of Early Paleozoic Arc Terranes Abutting the Northern Margin of North China Craton. International Journal of Earth Sciences, 2018, 107(5): 1911-1933

Zhou J B, Wilde S A, Zhang X Z, . Detrital Zircons from Phanerozoic Rocks of the Songliao Block, NE China: Evidence and Tectonic Implications. Journal of Asian Earth Sciences, 2012, 47: 21-34.

Zhou J B, Wilde S A, Zhao G C, . Nature and Assembly of Microcontinental Blocks within the Paleo-Asian Ocean. Earth-Science Reviews, 2018, 186: 76-93.

Zhou Z G, Zhang D, Gu Y C, . Characteristics of Bainaimiao Thrust Belt along Central Inner Mongolia in North China and Its Geological Significance. Geotectonica et Metallogenia, 2018, 42(1): 1-17

Zhu R X, Yang Z Y, Wu H N, . Paleomagnetic Apparent Polar Wander Paths and Motion of China’s Main Blocks in Phanerozoic. Science in China (Series D), 1998, 28(Suppl.): 1-15

Zhu M, Li X S. Large Breviconic Endoceroids from the Early Orcovician Lianjiashan Formation of Hunjiang, South Jilin Province, PRC. Acta Palaeontologica Sinica, 2000, 39(3): 369-390