东海陆架盆地南部中生代构造演化与原型盆地性质

• Published in: Hăiyang dĭzhĭ yu dĭsĭjĭ dĭzhĭ Vol. 32; no. 3; p. 105
• Main Authors: YANG, Changqing, YANG Chuansheng, LI, Gang, LIAO Jing, GONG Jianming
• Format: Journal Article
• Language: Chinese
• Published: Beijing Marine Geology and Quaternary Geology 01.01.2012
• Subjects: Basins; Cenozoic; Comparative analysis; Comparative studies; Continental margins; Cretaceous; Deformation; Eocene; Evolution; Isotopes; Jurassic; Mesozoic; Offshore; Palaeocene; Paleoceanography; Paleocene; Plates; Plates (tectonics); Prototypes; Sedimentology; Shelving; Subduction; Subduction (geology); Tectonics; Triassic; East China Sea
• ISSN: 0256-1492
• DOI: 10.3724/SP.J.1140.2012.03105

东海陆架盆地南部夹持于欧亚板块、太平洋板块与印度板块之间,是发育在前中生代基础之上的中、新生代叠合盆地。其构造演化受古太平洋板块俯冲及特提斯-喜马拉雅构造域的联合影响,经历了印支末期基隆运动、燕山期渔山和雁荡运动的叠加改造。结合浙闽隆起带中生代火成岩事件、盆地构造变形、沉积学的一些证据,通过海陆对比研究,认为东海陆架盆地南部早-中三叠世可能为面向古太平洋的被动大陆边缘盆地;晚三叠世-侏罗纪古太平洋板块已对中国大陆有较强的俯冲作用,东海陆架盆地及南部原型盆地为活动大陆边缘弧前盆地;白垩纪受控于滨海断裂表现为活动大陆边缘走滑拉分盆地;古新世-始新世火山岛弧向东移动,东海陆架变为弧后裂谷盆地。