【摘要】 从测井与地震资料入手,结合区域地质背景与层序地层格架特征,采用层序地层学的理论和方法,确定南苏门答腊盆地北部Jabung区块新生代陆相沉积、海陆过渡沉积和海相沉积三大沉积体系均有发育,识别出冲积扇、河流、湖泊、三角洲、浅海陆棚五大沉积相类型。纵向上,根据海平面变化,可分为始新世中期到渐新世早期盆地局部海侵阶段、中新世早期到末期盆地全范围海侵阶段和上新世早期至今盆地全范围海退阶段三个沉积演化阶段。更多还原

【Abstract】 This paper mainly focuses on the well log and seismic data combining with the area geological setting and sequence stratigraphy characteristics,and makes full use of the theory of sequence stratigraphy.Based on the integrated analysis of sedimentary characters,it can be found that terrestrial deposit,transitional deposit and marine deposit are all developed,and alluvial fan system,fluvial system,delta system and shallow carbonatite system are identified in the Jabung Block of the north of South Sumatra Basin in Cenozoic era.It can be vertically divided into three depositional evolution episodes considering eustatic sea level changes,that is,transgression in the local basin from the mid Eocene to the early Oligocene,transgression in the whole basin from the early to the late Miocene and regression in the whole basin from the early Pliocene to the present day.更多还原