中文摘要：

东海陆架盆地位于西太平洋活动大陆边缘,为一典型的中、新生界叠合盆地,盆内新生界地质成果丰硕,但中生界相关研究程度较低。本文基于近10年来的中生界研究工作,并综合前人研究成果,对盆内中生界发育特征、残留展布特点等进行了系统性总结与描述。盆内中生界广泛分布、南北差异,北部分布较为分散且厚度略薄,以白垩系为主,一般厚约1 000～2 500m。南部则分布连续且广泛,厚度较大,白垩系、侏罗系皆发育较好,一般厚约4 500～6 000m,最大厚度可达7 500m,雁荡低凸起、台北低凸起及观音凸起等构造单元上皆发育有一定厚度的中生代地层,进而较大程度改变了对于东海陆架盆地构造格局的传统认识。在此基础上,进一步探讨了中生代盆地构造格局,系统讨论了中生界展布所反映的大地构造背景与东亚陆缘转换问题。这些研究不仅对盆地中生界油气勘探中的区带优选具有重要参考价值,而且对于深入研究东海陆架盆地中生代构造演化、动力学机制等具有重要的借鉴意义。

英文摘要：

The East China Sea Shelf Basin locates at the edge of the Western Pacific active continental margin,a typical Meso-Cenozoic superimposed basin,and is characterized by abundant Cenozoic results but few Mesozoic results.Based on the Mesozoic results acquired over the last 10 years,this paper provides a summary of the development and distribution of Mesozoic strata.The Mesozoic strata which includes no other stratum than Cretaceous are thinner and distribute widely scattered with general thickness of 1 000～2 500 min the north of the basin,whereas the Cretaceous and Jurassic strata develop well and are characterized by extensive distribution with average thickness of 4 500～6 000m（maximum value is about 7 500m）in the south of the basin.There are also thick Mesozoic strata on the uplifts especially the Yandang low uplift,Taipei low uplift and Guanyin uplift that break the traditional geological understanding.Meanwhile,this paper also explores tectonic framework of the Mesozoic basin and discusses geotectonic background and variation in types of the East Asian continental margin according to the Mesozoic distribution.It is important in selection of favorable plays and also provides significant reference for the Mesozoic tectonic evolution and dynamic mechanics study of the East China Sea Shelf Basin at the same time.