【摘要】 根据地震反射终止类型,结合探井资料,在东海陆架盆地南部中生界及古近系地层中识别出4个一级层序界面和4个二级层序界面,据此将该套地层划分为3个构造层序和7个超层序。通过分析各层序单元的沉积演化特征和空间展布规律,提出东海陆架盆地南部中生代至古近系的沉积演化经历了坳陷期、弧前期、喷发期、裂陷期、裂后期、反转期6个沉积充填时期。更多还原

【Abstract】 According to seismic wave Termination type and borehole data,4 first-class sequence boundaries and 4 second-class sequence boundaries are identifed in Mesozoic and Paleogene of the East China Sea shelf basin.Moreover, these strata into 3 tectonic sequences and 7 super sequences are divided.Based on analyzing the evolution of sequence stratigraphy,it is pointed out that the evolution of sedimentary in the East China Sea shelf basin include 6 stages;Depress stage,Fore-arc stage,Volcanic stage,Rift stage,Post-rift stage and Inversion stage.更多还原