河流新分类及分汊河型在储层沉积学中的实例分析
首发时间:2008-12-26
摘要:从广泛调研前人研究成果出发,在对河流分类方案进行简单综述基础上,作者提出比较认同对河流五分法(顺直河、辫状河、分汊河、曲流河及网状河)的新方案。对分汊河与其它河型的区别及研究意义进行了分析,指出辫状河一般发育于沉积体系的上游;分汊河位于中(下)游;曲流河位于中下游;网状河位于下游,且相邻河型可以随时间和空间的变化而相互演化。结合对渤海湾盆地新近系河流相的研究实践,建立了古代分汊河相模式,为沉积学界河流相的研究提供了新思路。
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The new classification of fluvial rivers and the analysis of the anabranched river in reservoir sedimentology
Abstract:on the basis of summarizing different clsaaification of fluvial rivers, the straight river, the braided river, the anabranched river, the meandering river and the anastomosing river are considered the basic types of fluvial rivers. The significance and the differences of the anabranched channel and the other river are analysised. the braided river, the anabranched river, the meandering river and the anastomosing river can transform along with space-time evolvement. According to the research of the fluvial river of the upper tertiary in Bohaiwai basin, the anabranched river model of is put forward.
Keywords: calssification of fluvial rivers the anabranched river space-time evolvement sedimentary facies model
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No.2700757628123027****
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