摘要
研究了济阳坳陷沾化凹陷义东地区沙河街组三段陡岸碎屑岩沉积体系的岩性特征、电性特征及地震反射特征，划分出近岸水下扇、深水湖底扇两种类型，描述了每种扇体的微相特征和砂体展布特征。结合沉积背景和边界断层活动特征，总结了陡岸沉积扇体的两种沉积相模式。认为：该区沙三段沉积期徒岸断层的活动，为近岸水下扇和深水湖底扇的沉积提供了地形和物源条件。两种扇体形成机制不同，沉积规模和砂作展布规律不同，具有明显的识别标志。构造断裂活动控制着两种扇你沉积模式和砂体发育规律。
Based on studies of lithologic, electrical and seismic renectional characteristics of the clastic sedimentary bodies dePosited on the abrupt slope of the 3rd Member of Shahejie Formation in Yidong area of Zhanhua sag in Jiyang depression, the paper divides these clastic dePosits into two types: nearshore subsea fan and deep water lakebed fan, and discusses the features of microfacies and distribution for each type of fan bodies. The paper, based on the sedimental background and combined with active features of boundary faults, also summarizes the fan bodies deposited on abrupt slope into two kinds of facies models.
出处
《石油勘探与开发》
SCIE
EI
CAS
CSCD
北大核心
1997年第2期41-45,共5页
Petroleum Exploration and Development
关键词
沉积特征
沉积相
水下扇
油田
济阳坳陷
Depositional feature, Sedimentary facies, Mode, Near shore environment,Underwater fan, Deep water,Yidong oil field, Jiyang depression
