摘要
在野外深探槽精细解剖基础上 ,结合浅钻井、测井及室内分析化验等资料 ,根据地貌特征、沉积物类型、沉积构造、粒度分布、测井曲线形态 ,将嫩江现代河流沉积划分为辫状河的砾质坝、溢岸、河间沼泽微相及曲流河的点坝、天然堤、决口扇和河漫滩微相 .该河流沉积体是由粗粒的辫状河沉积旋回和以细粒沉积为主的低能曲流河沉积旋回叠覆构成 .
On the basis of field deep exploration channel surveying and combined with drilling, well logging and sampling analysis, in accordance with landforms, sediments, sedimentary structure, distribution of grain size, logging trace, the fluvial deposits of morden Nen river is divided into seven sedimentary microfacies: shingle bar, overbank, swamp of braided river, point bar, levee, floodfan, washland of meander river. The deposits of mordern Nen river are distinctively composed of coarse\|grained braided fluvial sequence overlying fine\|grained low energy meandering fluvial sequence.
出处
《大庆石油学院学报》
CAS
北大核心
2001年第2期8-11,共4页
Journal of Daqing Petroleum Institute
基金
国家"九五"科技攻关项目! ( 95 10 90 10 11)
关键词
现代沉积
河流
嫩江
沉积微相
辫状河
曲流河
modern deposition
fluvial sedimentary
Nen river
microfacies
braided river
meander river
