【摘要】 南海北部陆缘陆上粤中—粤东地区出露一系列的中生界,可以划分为15个Ⅲ级沉积层序。在毗邻海区的潮汕坳陷的地震剖面和LF35-1-1井也可以识别出12个Ⅲ级沉积层序。这些Ⅲ级层序组成了6个Ⅱ级层序和2个Ⅰ级层序,反映出由海向陆的环境变化过程。陆区和海区中生界在岩性、岩相以及层序地层等方面存在可对比性。陆区上地层-沉积特征以及模式可以作为模型应用于海区中生界相关研究,对南海北部中生界油气勘探具有指导意义。更多还原

【Abstract】 The Mesozoic strata outcropped in the central-east part of Guangdong Province may divi-ded into 15 of Ⅲ rank sedimentary sequences,while there are 12 of Ⅲ rank sequences of Mesozoic identified in the seismic profiles and well LF35-1-1 in offshore Chaoshan depression in the north margin of South China Sea.The sequences including 6 of Ⅱ rank and 2 of Ⅰrank,reflect the environmental changing processes from sea to land.The lithography,sedimentary facies and sequence of the Mesozoic both outcropped in land and occurred offshore may correlate well.The characteristics of stratigraphy and sedimentation and its model based on the outcropped strata are helpful to study the related subjects of the Mesozoic offshore and can be a guide to petroleum exploration.更多还原