Source-to-sink of Late carboniferous Ordos Basin: Constraints on crustal accretion margins converting to orogenic belts bounding the North China Block

作     者：Anqing Chen Hao Zou James G.Ogg Shuai Yang Mingcai Hou Xiuwei Jiang Shenglin Xu Xiaoxing Zhang Anqing Chen;Hao Zou;James G. Ogg;Shuai Yang;Mingcai Hou;Xiuwei Jiang;Shenglin Xu;Xiaoxing Zhang

作者机构：State Key Laboratory of Oil and Gas Reservoir Geology and ExploitationChengdu University of TechnologyChengdu 610059SichuanChina Department of EarthAtmospheric and Planetary SciencesPurdue UniversityWest LafayetteIN47907USA Key Laboratory of Tectonic Controls on Mineralization and Hydrocarbon Accumulation of Ministry of Land and ResourcesChengdu University of TechnologyChengdu 610059SichuanChina State Key Laboratory of Lithospheric EvolutionInstitute of Geology and GeophysicsChinese Academy of SciencesBeijing 100029China 

出 版 物：《Geoscience Frontiers》 (地学前缘（英文版）)

年 卷 期：2020年第11卷第6期

页      面：2031-2052页

核心收录：

学科分类：070904[理学-构造地质学] 070903[理学-古生物学与地层学(含：古人类学)] 0709[理学-地质学] 07[理学] 

基　　金：financially supported by the National Natural Science Foundation of China(Grant Nos.41872109 and 41702108) China Postdoctoral Science Foundation(Grant No.2019M650833) Everest Scientific Research Program of Chengdu University of Technology 

主　　题：Benxi formation Detrital zircons Central asian orogen belt Tectonics Paleogeography Moscovian and kasimovian 

摘      要：The Upper Carboniferous Benxi Formation of the Ordos Basin is the lowest strata overlying Middle Ordovician above the major ca.150-Myr sedimentary gap that characterizes the entire North China Block(NCB).We apply an integrated analysis of stratigraphy,petrography,and U-Pb dates and Hf isotopes on detrital zircons to investigate its provenance and relationships to the progressive collisions that formed the Xing’an-Mongolia Orogenic Belt to the north and the Qinling Orogenic Belt to the *** results show that,in addition to regional patterns of siliciclastic influx from these new uplifted sources,the Benxi Formation is composed of two sequences corresponding to long-term glacial-interglacial cycles during the Moscovian to lower Gzhelian stages which drove global changes of eustatic sea level and *** spatio-temporal distribution of sediment isopachs and facies indicate there were two sediment-infilling pulses,during which the southern and the northern Ordos Basin developed tidal-reworked *** age spectra from detrital zircons,trace element patterns and εNd(t)values reveal that the siliciclastics forming the southern delta was sourced in the Qinling Orogenic Belt,whereas the northern delta was derived from the Xing’an-Mongolia Orogenic *** source-to-sink evolution of this Upper Paleozoic system records the progressive development of orogenic belts and uplifts forming on the southern and northern margins of the NCB prior to its collisions with the South China and the Siberian plates,respectively.