对浊流沉积与浊积砂体的研究进展与现状做了简要介绍.通过分析前人的多种浊积砂体分类方案,认为吴崇筠的方案具有较高的实用性.通过修改吴崇筠的方案,结合东营凹陷滨县凸起南岸影响浊积体发育的各种条件,最终将浊积砂体分为近岸水下扇、远岸浊积扇、前缘滑塌扇和深水透镜状浊积体4种类型.主要以滨县凸起东、南坡沙三段浊积体为例,阐述了陆相湖盆不同类型浊积砂体的沉积特征与地球物理特征,总结了其判识特征、分布规律,建立了相应的成因模式.%The current situation and the advancement research of turbidity current deposit and turbidity sand are introduced in this paper.Through the particular analysis of existing classifications,this paper adopts Wu Chong-jun＇s proposal that shows practicality and advantage.By amending Wu Chong-jun＇s proposal and combining all kinds of conditions that can affect the spread of sand bodies in Binxian uplift,it is reasonable to classify turbidity sand into four types,which are nearshore subaqueous fan,infralittoral turbidity fan,deep-water delta-front slump turbidity fan and lenticular turbidity sand body.Taking Binxian uplift as an example,both sedimentary characteristics and geophysical properties of turbidity sand in continental lacustrine basins are studied and recognition methods,distribution regularities of turbidity sand are summarized.Sedimentary genetic model is established in this paper.
展开▼
