Distribution,Seismic Characteristics and Controlling Factors of Carbonate Platforms on the Northwestern Margin of the South China Sea

作     者：LI Lin WANG Bin YANG Taotao YANG Zhili LI Li LU Yintao WANG Xuefeng WU Jingwu SUN Guozhong LI Lin;WANG Bin;YANG Taotao;YANG Zhili;LI Li;LU Yintao;WANG Xuefeng;WU Jingwu;SUN Guozhong

作者机构：Petrochina Hangzhou Research Institute of GeologyHangzhou 310023China 

出 版 物：《Acta Geologica Sinica(English Edition)》 (地质学报（英文版）)

年 卷 期：2021年第95卷第1期

页      面：142-152页

核心收录：

学科分类：0709[理学-地质学] 070901[理学-矿物学、岩石学、矿床学] 07[理学] 

基　　金：funded by the National Science and Technology Major Project“The evaluations of deepwater oil and gas geological conditions and targets in Zhongjian area of the South China Sea”(No.2017ZX05026006) the CNPC Science and Technology Major Projects(No.2019A-1009&2019D4309) the Strategic Priority Research Program of the Chinese Academy of Sciences(No.XDA13010101) National Natural Science Foundation of China(No.41706054) 

主　　题：seismic characteristics carbonate deposition Guangle carbonate platform Xisha carbonate platform 

摘      要：Newly-acquired seismic data reveal widespread carbonate deposits covering a large part of the northwestern South China Sea *** carbonate platforms are identified to have developed on the topographic highs inherited from tectonic deformation and volcanic *** the carbonate platforms,the Miocene strata are characterized by high-amplitude seismic reflections and distinct platform architecture that overlaps older *** Guangle and Xisha carbonate platforms grew on faulted blocks due to South China Sea continental rifting,while the Zhongjian carbonate platform developed on a structural high induced by early Miocene *** the late Miocene,partial drowning resulted in the inhibition of platform growth,eventual platform drowning and termination of most carbonate *** drowning of the Guangle and Zhongjian carbonate platforms is shown by the supply of siliciclastic sediments during the late Miocene and seems to be closely linked to late Neogene volcanic activity,whilst the drowning of the Xisha carbonate platform is primarily related to relative eustatic *** results imply that tectonic activity,volcanism and eustasy are the dominant controls on the evolution of carbonate platforms on the northwestern margin of the South China Sea.