Cenozoic giant coal-bearing basin belt discovered in China's sea and its adjacent areas

作     者：Gongcheng Zhang Ying Chen Dongdong Wang Zengxue Li Gongcheng Zhang;Ying Chen;Dongdong Wang;Zengxue Li

作者机构：College of Earth Science and EngineeringShandong University of Science and TechnologyQingdao 266590China China National Offshore Oil Corporation(CNOOC)Research Institute Co.Ltd.Beijing 100028China Department of GeologyNorthwest UniversityXi’an 710000China 

出 版 物：《Acta Oceanologica Sinica》 (海洋学报（英文版）)

年 卷 期：2023年第42卷第3期

页      面：101-112页

核心收录：

学科分类：0710[理学-生物学] 081803[工学-地质工程] 0908[农学-水产] 0707[理学-海洋科学] 08[工学] 0818[工学-地质资源与地质工程] 

基　　金：The Ministry of Land and Resources Project of Oil and Gas Resource Investigation and Evaluation under contract Nos XQ-2004-05 and XQ-2007-05 the National Key Basic Research Program of China(973 Program)under contract No.2009CB219400 the National Science and Technology Major Project under contract Nos 2008ZX05025,2011ZX05025 and2016ZX05026 the National Natural Science Foundation under contract Nos 41872172 and 42072188 the Research and Innovation Team Support Program of Shandong University of Science and Technology under contract No.2018TDJH101 Hebei Provincial Resources Survey and Research Laboratory Open Foundation 

主　　题：coal-bearing basin belt coal-forming period coal-forming sedimentary environment China's sea area 

摘      要：Sea area is an important area of oil and gas exploration in *** has been found that China s sea area mainly consists of coal type oil and gas,and the exploration of coal-bearing series source rocks has become an important part of oil and gas exploration *** years of comprehensive geological research in China s sea area,it has been revealed that it has undergone multiple occurrences of tectonic opening and closing movements in varying degrees in the Paleogene,forming 26 Cenozoic sedimentary basins of various types,such as active continental margin,passive continental margin,transitional continental margin and drift rift *** the present study,it is observed for the first time that coal type source rocks are mainly developed in 14 continental margin basins in China s sea area,revealing that a very large C-shaped coal-bearing basin group developed there in the ***,based on the coupling analysis of paleoclimate,paleobotany,paleogeography and paleostructure,it is observed that there are five coal-forming periods in China s sea area,namely the Paleocene,Eocene,early Oligocene,late Oligocene and Miocene-Pliocene,and the coal-forming age is gradually new from north to *** is also found that the coal seams in the sea area are mainly developed in three coal-forming environments in Cenozoic,namely delta,fan delta and tidal *** coal seams developed in different environments are characterized by thin thickness,many layers and poor ***,the coal-bearing series source rocks in China s sea area have a wide distribution range,very high thickness and large amount,thus forming a material basis for the formation of rich coal type oil and gas.