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A Comparative Study of the Coal-forming Characteristics of Marginal Sea Basins and Epicontinental Sea Basins
投稿时间:2020-05-22  修订日期:2020-11-07  点此下载全文
引用本文:ZHAO Honggang,LI Ying,CHANG Xiangchun,LI Zengxue,LIU Haiyan,ZHAO Cunliang.2021.A Comparative Study of the Coal-forming Characteristics of Marginal Sea Basins and Epicontinental Sea Basins[J].ACTA GEOLOGICA SINICA(English edition),95(1):121~130
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DOI:10.1111/1755-6724.14630
作者单位E-mail
ZHAO Honggang 1 The Shandong University of Science and Technology,Qingdao,Shandong 266590,China  
LI Ying 2 Shandong Jiaotong University,Jinan 250357,China  
CHANG Xiangchun 1 The Shandong University of Science and Technology,Qingdao,Shandong 266590,China  
LI Zengxue 1 The Shandong University of Science and Technology,Qingdao,Shandong 266590,China lizengxue@126.com 
LIU Haiyan 1 The Shandong University of Science and Technology,Qingdao,Shandong 266590,China  
ZHAO Cunliang 3 Hebei University of Engineering,Handan,Hebei 056038,China  
 
Author NameAffiliationE-mail
ZHAO Honggang 1 The Shandong University of Science and Technology,Qingdao,Shandong 266590,China  
LI Ying 2 Shandong Jiaotong University,Jinan 250357,China  
CHANG Xiangchun 1 The Shandong University of Science and Technology,Qingdao,Shandong 266590,China  
LI Zengxue 1 The Shandong University of Science and Technology,Qingdao,Shandong 266590,China lizengxue@126.com 
LIU Haiyan 1 The Shandong University of Science and Technology,Qingdao,Shandong 266590,China  
ZHAO Cunliang 3 Hebei University of Engineering,Handan,Hebei 056038,China  
Abstract:The coal-forming characteristics, as well as the similarities and differences between epicontinental sea basins and continental marginal sea basins developed during different time periods,were analyzed in this study by adopting comparative analysis thoughts and methods.The results obtained in this study revealed that epicontinental basins and marginal sea basins are both characterized by the main development of thin coal seams or extremely thin coal seams.In addition,changes in sea levels were determined to be the main controlling factors for coal formation,and there were similarities in the continent-sea interactions and coal-forming sedimentary systems of the different basins.However, there were also significant differences observed in the sea level change events,basin basement structural characteristics,coal seam stability levels,accumulation and aggregation characteristics,and the migration patterns of coal-forming materials.For example,the marginal sea basins in the South China Sea were found to be characterized by strong tectonic activities,diversity and complexity.The basin structures showed complex patterns of depressions,uplifts and concave or sag uplifts,which tended to lead to greater complexity in the paleogeographic patterns of the coal formations.This had subsequently resulted in complex coal-forming processes and paleogeographic characteristics,in which the coal-forming zones displayed bead-like distributions,and the enrichment areas and centers were scattered.The practical significance of studying the similarities and differences of the coal-forming characteristics between epicontinental basins and marginal sea basins is that the results can potentially be used to guide the predictions of coal-measure coal seam distributions in South China Sea,as well as provide valuable guidance for future explorations of natural gas reservoirs related to coal measures in the South China Sea area.
keywords:thin coal seams,epicontinental sea basins,marginal sea basins in South China Sea
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