Late Paleozoic evolution of south branch of Central Asian Orogenic Belt: With reference to creation of the Middle-Late Permian residual marine basins bordering Mongolia and China
Wu Genyao
Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029
Abstract：The south branch of the Paleo-Asian Ocean,being a complicated archipelago,could be divided into the west,middle and east segments by the NNE-orientated transform faults. The oceanic crust created and subducted earlier in the west segment,and western Mongolia became a landmass in the Permian. Simultaneously,there developed the Zuunmod oceanic basin and several residual marine basins in central-eastern Mongolia and neighboring regions. The NEE- to WE-orientated oceanic basin,the NW-striking Adaatsag suture(shear zone)and the NNE-striking Erdenedalai trough made up a Permian three-armed structure. The oceanic realm of the middle segment could be divided into two sub-oceanic basins,distributing respectively in central Gobi and southern Gobi areas. The oceanic crust of the former subducted northwards. After the disappearance of the ocean,a residual marine basin with an age of Middle-Late Permian,named the Ondorsht basin,occurred in the former fore-arc region. The oceanic crust in southern Gobi area and western Inner Mongolia subducted southwards,accompanied with occurrence of an intra-oceanic arc(the Zoolen Arc)and a continent marginal arc(the Yagan-Suoguozhuo Arc). After the disappearance of the ocean,the residual marine basins formed in the former back-arc regions during the Middle Permian,and named the South Gobi and Guaizihu basins respectively. A similar tectono-palaeogeographic evolution during the Late Paleozoic occurred in the east segment(the east Mongolia and east Inner Mongolia),and the residual Middle Permian marine basins,named the Zhesi and Wujiatun basins,once linked up with the South Gobi basin. During the Late Permian,the marine South Gobi and Guaizihu basins continued to develop,where the thick coal-bearing strata or coarse clastic and volcanic rocks deposited respectively. Nowadays,the eastward stretch of South Gobi basin is intercepted by a magmatic arc. The Zhesi basin closed and the continental Linxi basin occurred during the Late Permian in eastern Inner Mongolia. Whereas in southwestern Mongolia,the marine invaded along two narrow swales near Chandmani during the late Late Permian,and deposited the middle-upper part of coal measures of the Tavan Dolgoi Formation.
Wu Genyao. Late Paleozoic evolution of south branch of Central Asian Orogenic Belt: With reference to creation of the Middle-Late Permian residual marine basins bordering Mongolia and China[J]. JOPC, 2014, 16(6): 907-925.
鲍庆中,张长捷,吴之理,等. 2005. 内蒙古西乌珠穆沁旗地区石炭二叠纪岩石地层[J]. 地层学杂志,29(增刊):512-519. 鲍庆中,张长捷,吴之理,等. 2007a. 内蒙古自治区白音高勒地区石炭纪石英闪长岩SHRIMP锆石U-Pb年代学及其意义[J]. 吉林大学学报(地球科学版),37(1):15-23. 鲍庆中,张长捷,吴之理,等. 2007b. 内蒙古东南部晚古生代裂谷区花岗质岩石锆石SHRIMP U-Pb定年及其地质意义[J]. 中国地质,34(5):790-798. 曹从周,杨芳林,田昌烈,等. 1986. 内蒙古贺根山地区蛇绿岩及中朝板块和西伯利亚板块之间的缝合带位置[A]. 见:“中国北方板块构造论文集”编辑委员会. 中国北方板块构造论文集(1)[M]. 北京:地质出版社,64-86. 黄永卫,刘扬,王喜臣,等. 2009. 黑龙江北部多宝山矿区奥陶系的岩石特征和构造意义[J]. 地质科学,44(1):245-256. 李文国. 1996. 内蒙古自治区岩石地层[M]. 湖北武汉:中国地质大学出版社,1-344. 刘家义. 1986. 内蒙古贺根山地区蛇绿岩研究及构造意义[A]. 见:“中国北方板块构造论文集”编辑委员会. 中国北方板块构造论文集(1)[M]. 北京:地质出版社,117-137. 内蒙古自治区地质矿产局. 1991. 内蒙古自治区区域地质志[M]. 北京:地质出版社,1-725. 吴根耀. 2006. 白垩纪:中国及邻区板块构造演化的一个重要变换期[J]. 中国地质,33(1):64-77. 吴根耀. 2007. 造山带古地理学:重建区域构造古地理的若干思考[J]. 古地理学报,9(6):635-650. 吴根耀. 2013. 蒙古国西部早—中侏罗世含煤盆地的演化和后期改造:以希奈金斯盆地为例[J]. 地球科学前沿,3(4):253-266. 吴根耀,陈焕疆,马力,等. 2002. 中国东部燕山期高原的发育及对矿产和油气资源评价的启示[J]. 石油实验地质,24(1):3-12. 吴根耀,马力,梁兴,等. 2008. 从郯庐断裂带两侧的“盆”“山”耦合演化看前白垩纪“郯庐断裂带”的性质[J]. 地质通报,27(3):308-325. 吴根耀,王伟锋,迟红星. 2012. 黔南坳陷及邻区盆地演化和海相沉积的后期改造[J]. 古地理学报,14(4):507-521. 谢鸣谦. 2000. 拼贴板块构造及其驱动机理:中国东北及邻区的大地构造演化[M]. 北京:科学出版社,1-256. 张旗,焦守涛,吴浩若,等. 2013. 中国三叠纪古地势图[J]. 古地理学报,15(2):181-202. 朱德丰,任延广,吴河勇,等. 2007. 松辽盆地北部隐伏二叠系和侏罗系的初步研究[J]. 地质科学,42(4):690-708. Badarch G,Cunningham W D,Windley B F. 2002. A new terrane subdivision for Mongolia:Implications for the Phanerozoic crustal growth of Central Asia[J]. Journal of Asian Earth Sciences,21:87-110. Blight J H S,Cunningham D,Petterson M G. 2008. Crustal evolution of the Saykhandulaan Inlier,Mongolia:Implications for Paleozoic arc magmatism,polyphase deformation and terrane accretion in the Southeast Gobi Mineral Belt[J]. Journal of Asian Earth Sciences,32:142-164. Blight J H S,Crowley Q G,Petterson M G, et al. 2010. Granites of the southern Mongolia Carboniferous arc:New geochronological and geochemical constraints[J]. Lithos,116:35-52. Cunningham D. 2005. Active intracontinental transpressional mountain building in the Mongolian Altai:Defining a new class of orogen[J]. Earth Planet. Sci. Lett.,240:436-444. Demoux A,Krner A,Badarch G. 2009a. Devonian arc-related magmatism in the Tseel terrane of SW Mongolia:Chronological and geochemical evidence[J]. Journal of Geological Society of London,166:459-471. Demoux A,Krner A,Liu D, et al. 2009b. Precambrian crystalline basement in southern Mongolia as revealed by SHRIMP zircon dating[J]. International Journal of Earth Sciences,98:1365-1380. Donskaya T V,Gladkochub D P,Mazukabzov A M, et al. 2013. Late Paleozoic-Mesozoic subduction related magmatism at the southern margin of the Siberian continent and the 150million-year history of the Mongol-Okhotsk ocean[J]. Journal of Asian Earth Sciences,62:79-97. Erdenetsogt B,Lee I,Bat-Erdene D, et al. 2009. Mongolian coal-bearing basins:Geological settings,coal characteristics,distribution and resources[J]. International Journal of Coal Geology,80:87-104. Feng Zengzhao,Bao Hongping,Jia Jinhua, et al. 2013. Lithofacies palaeogeography as a guide to petroleum exploration[J]. Journal of Palaeogeography(English Edtion),2(2):109-126. Geological Survey,Mineral Resources Authority of Mongolia,Institute of Geology and Mineral Resources,Mongolian Academy of Sciences(eds). 1998. Geological Map of Mongolia(1︰1 000000). Ulaannbatar. Helo C,Hengner E,Krner A, et al. 2006. Geochemical signature of Paleozoic accretionary complexes of the Central Asian Orogenic Belt in South Mongolia:Constraints on arc environments and crust growth[J]. Chemical Geology,227:236-257. Hendrix M S,Graham S A,Amory J Y, et al. 1996. Noyon Uul syncline,southern Mongolia:Lower Mesozoic sedimentary record of the tectonic amalgamation of central Asia[J]. Geol. Soc. Amer. Bull.,108(10):1256-1274. Heubeck C. 2001. Assembly of central Asia during the middle and late Paleozoic[A]. In: Hendrix M S,Davis G A(eds.). Paleozoic and Mesozoic Tectonic Evolution of Central Asia:From Continental Assembly to Intracontinental Deformation[M]. Geological Society of America Memoir,194:1-22. HrdliAcˇkov K,Bolormaa K,Burinek D, et al. 2008. Petrology and age of metamorphosed rocks in tectonic slices inside the Paleozoic sediments of the eastern Mongolian Altai,SW Mongolia[J]. Journal of Geosciences,53:139-165. Jian P,Liu D,Krner A, et al. 2010a. Evolution of a Permian intraoceanic arc-trench systems in the Solonker suture zone,Central Asian Orogenic Belt,China and Mongolia[J]. Lithos,118:169-190. Jian P,Krner A,Windley B F, et al. 2010b. Zircon ages of the Bayankhongor ophiolite mélange and associated rocks:Time constraints on Neoproterozoic to Cambrian accretionary and collisional orogenesis in central Mongolia[J]. Precambrian Research,177:162-180. John B M,Litvinovsky B A,Zanvilevich A N, et al. 2009. Peralkaline granitoid magmatism in the Mongolian-Transbaikalian Belt:Evolution,petrogenesis and tectonic significance[J]. Lithos,113:521-539. Kovalenko V Ⅰ,Yarmolyuk V V. 1995. Endogenous rare metal ore formation and rare metal metallogeny of Mongolia[J]. Economic Geology,90:520-529. Kovalenko V Ⅰ,Yarmolyuk V V,Kovach V P, et al. 1996. Sources of Phanerozoic granitoids in central Asia:Sm-Nd isotope data[J]. Geochim. International,34(8):628-640. Kozakov I K,Glebovitsky V A,Bibikova E V, et al. 2002. Hercynian granulites of Mongolian and Gobian Altai:Geodynamic setting and formation conditions[J]. Doklady Earth Sciences,38:781-785. Krner A,Demoux A,Zack T, et al. 2011. Zircon ages for a felsic volcanic rock and arc-related early Paleozoic sediments on the margin of the Baydrag microcontinent,Central Asian Orogenic Belt,Mongolia[J]. Journal of Asian Earth Sciences,42:1008-1017. Krner A,Lehmann J,Schulmann K, et al. 2010. Lithostratigraphic and chronological constraints on the evolution of the Central Asian Orogenic Belt in SW Mongolia:Early Paleozoic rifting followed by late Paleozoic accretion[J]. American Journal of Science,310:523-574. Krner A,Windley B F,Badarch G, et al. 2007. Accretionary growth and crust formation in the Central Asian Orogenic Belt and comparison with the Arabian-Nubia Shield[A]. In:Hatcher Jr R D,Carlson M P,Mcbride J H, et al(eds.). 4-D Framework of Continental Crust[M]. Geological Society of America,Memoirs, 200:181-209. Kurihara T,Tsukada K,Otoh S, et al. 2009. Upper Silurian and Devonian pelagic deep-water radiolarian chert from the Khangai-Khentei belt of Central Mongolia:Evidence for Middle Paleozoic subduction-accretion activity in the Central Asian Orogenic Belt[J]. Journal of Asian Earth Sciences,34:209-225. Lamb M A,Badarch G. 1997. Paleozoic sedimentary basins and volcanic arc systems of southern Mongolia:New stratigraphic and sedimentologic constraints[J]. International Geological Review,39(6):542-576. Lamb M A,Cox D. 1998. New 40Ar/39Ar age data and implications for porphyry copper deposits of Mongolia[J]. Economic Geology,93:524-529. Lamb M A,Badarch G,Navratil T, et al. 2008. Structural and geochronological data from the Shin Jinst area,eastern Gobi Altai,Mongolia:Implications for Phanerozoic intracontinental deformation in Asia[J]. Tectonophysics,451:312-330. Lehmann J,Schulmann K,Lexa O, et al. 2010. Structural constraints on the evolution of the Central Asian Orogenic Belt in southern Mongolia[J]. American Journal of Science,310:575-628. Li J Y. 2006. Permian geodynamic setting of Northeast China and adjacent regions:Closure of the Paleo-Asian Ocean and subduction of the Paleo-Pacific Plate[J]. Journal of Asian Earth Sciences,26:207-224. Orolmaa D,Erdenesaihan G,Borisenko A S, et al. 2008. Permian-Triassic granitoid magmatism and metallogeny of the Hangayn(Central Mongolia)[J]. Russian Geology and Geophysics,49:534-544. Perelló J,Cox D,Garamjav D, et al. 2001. Oyu Tolgoi,Mongolia:Siluro-Devonian porphyry Cu-Au-(Mo)and high-sulfidation Cu mineralization with a Cretaceous chalcocite blanket[J]. Economic Geology,96:1407-1428. Tomurtogoo O,Windley B F,Krner A, et al. 2005. Zircon age and occurrence of the Adaatsag ophiolite and Muron shear zone,central Mongolia:Constraints on the evolution of the Mongol-Okhotsk ocean,suture and orogen[J]. Journal of Geological Society of London,162:125-134. Traynor J J,Sladen C. 1995. Tectonic and stratigraphic evolution of the Mongolian Peoples Republic and its influence on hydrocarbon geology and potential[J]. Mar. Petrol. Geol.,12:35-52. Wang Q,Liu X. 1986. Paleoplate tectonics between Cathaysia and Angaraland in Inner Mongolia of China[J]. Tectonics,5:1073-1088. Watanabe Y,Stein H J. 2000. Re-Os ages for the Erdenet and Tsagaan Suvarga porphyry Cu-Mo deposits,Mongolia,and tectonic implications[J]. Economic Geology,95:1537-1542. Windley B F,Alexeiev D,Xiao W, et al. 2007. Tectonic models for accretion of the Central Asian Orogenic Belt[J]. Journal of Geological Society of London,164:31-47. Wu G Y. 1998. Early Paleozoic accretion and amalgamation in a Gondwana-originated China[J]. Acta Universitatis Carolinae:Geologica,42(3-4):501-507. Wu Genyao. 2005. The Yanshanian orogeny and two kinds of Yanshanides in central-eastern China[J]. Acta Geologica Sinica(English Ed.),79(4):507-518. Wu Genyao. 2013. Palinspastic reconstruction and geological evolution of Jurassic basins in Mongolia and neighboring China[J]. Journal of Palaeogeography(English Ed.),2(3):306-317. Xiao W,Windley B F,Hao J, et al. 2003. Accretion leading to collision and Permian Solonker suture,Inner Mongolia,China:Termination of the Central Asian Orogenic Belt[J]. Tectonics,22(6):1069-1088. Yarmolyuk V V,Kovalenko V I,Salnikova E B, et al. 2008. Geochronology of igneous rocks and formation of the late Paleozoic south Mongolian active margin of the Siberian continent[J]. Stratigraphy and Geological Correlation,16:162-181. Zorin Y A. 1999. Geodynamics of the western part of the Mongolia-Okhotsk collision belt,Trans Baikal region(Russia)and Mongolia[J]. Tectonophysics,306:33-56.
