摘要
本文再现了三角洲分流河道的形成及演变过程 ,定量剖析了分流河道形态特征及三角洲朵体展布特征 ,研究了分流河道、边滩及决口扇粒度变化 ,对比分析了水上、水下分流河道及前缘席状砂的宽厚比变化趋势 。
This paper presents the process of the formation and evolution of the distributary channel of delta ,quantitatively analyzes the morphological feature of the distributary channel and the feature of distribution of the sand body of delta ,studies the changes of grain size of the distributary channel ,the point bar and the splay ,and comparatively analyzes the change tendency of the ratio of width to thickness at the distributary channel and front sheet sands of the waterways and underwater.Above study,combined with the determination of characteristics of delta sandbodies,provides information for the practical application in production.
出处
《矿物岩石》
CAS
CSCD
北大核心
2000年第3期53-58,共6页
Mineralogy and Petrology
基金
国家重点基础研究发展规划项目!(G19990 2 2 5 0 7)
中国石油天然气集团公司油气储层重点实验室项目!(95 -10 9-0 1-12 )
关键词
三角洲朵体
分流河道
决口扇
宽厚比
沉积学
sand body of delta
distributary channel
crevasse splay
ratio of width to thickness main stream
point bar
