现代辫状河沉积体系的定量关系

通过现代辫状河沉积的卫星照片可以获取辫状河沉积体系的平面分布定量数据,从而建立其沉积体系之间的相关关系。介绍了现代辫状河沉积的研究现状,比较了两种类型的辫状河的沉积特征,简要说明了研究现代河流沉积规模的方法,测量了不同地区不同沉积环境的辫状河的心滩坝宽度、长度及辫流带宽度,得到了诸多测量数据。在此基础上,得出了不同环境中辫状河的心滩坝宽度与心滩坝的长度、心滩坝宽度与辫流带宽度的相关式;利用这些相关式可以为辫状河心滩坝砂体构型的分布规模提供依据,指导辫状河心滩坝储层构型的定量研究。

Quantitative relation of sedimentary system of modernbraided river

We can get quantitative data of the planar distribution in sedimentary system of braided river,so as to establish the relationship about the sedimentary system.This paper introduces the research status of modern braided river sedimentary,compares the two types of sedimentary characteristics about braided river.This paper introduces a method to study the scale of modern braided river,and then measuring the width and length of braided bar and the width of braided stream belt in different regions and sedimentary environment,so we get a lot of measuring datas.On this basis, we get two types of relational expressions,one relational expression is about relation of braided bar"s width and braided bar"s length,the others is about relation of braided bar"s width and braided stream belt" width.These relational expressions can provide reference for the size distribution of sandbody configuration,guiding quantitative research of reservoir configuration in braided river.