河流沉积学研究热点与进展——第11届国际河流沉积学大会综述

发布时间：2018-02-13 09:53

本文关键词： 河流沉积学研究热点研究方向国际河流沉积学大会　出处：《沉积学报》2017年06期 　论文类型：期刊论文

【摘要】：第11届国际河流沉积学大会于2017年7月17日—21日在加拿大卡尔加里大学举行,每四年举行一次的国际河流沉积学学术会议,吸引了当今北美、欧洲、澳洲及亚洲从事河流沉积学及相关学科研究的众多知名学者参会,研究成果充分体现了当前国际河流沉积学研究取得的重要进展和发展方向。重要进展有:1)河流动力学及其变化过程研究。其中包括将今论古法论现代河流沉积过程与古老地层对比,河道—洪泛平原体系的越岸复合沉积动力学,河流动力学与变化过程研究展望,恢复河道迁移过程:新一代平面图演化模式的讨论,冲积河流和基岩河流的湍流、颗粒间作用和沉积作用;2)陆缘河流。包括河流入海处的地貌动力学与沉积学,河流补给边缘的沉积物搬运、地貌和地层特征,干旱地区河流、冲积扇体系与风的相互作用,植被生长前、无植物生长、或是植被发育区河流的沉积过程研究;3)河流沉积地层及其地下资源。包括源—汇系统,"河流相模式"是否有用的讨论,辫状河、网状河、曲流河概念的厘定等;4)河流地貌变化。包括气候改变、泥泞植被洪泛平原等对河流沉积物通量、河流模式等产生影响,河道中冲积岛屿的演化和稳定河流的蛇曲化,河流环境中沉积物生物作用等。基于上述资料分析,认为河流演化过程从定性向定量化研究,物理模拟与数值模拟技术是河流沉积学研究不可或缺的手段,应用定量建模、数学计算等方法进行精准研究,碎屑锆石U-Pb定年技术是新一代从源到汇研究的重要工具等诸多方面,是我国学者应该重视并开展研究的方向。
[Abstract]:The 11th International Conference on fluvial sedimentology was held at the University of Calgary, Canada, from July 17th 2017 to 21st. The International Conference on fluvial sedimentology, held every four years, has attracted today's North America and Europe. The meeting was attended by a large number of renowned scholars in fluvial sedimentology and related disciplines in Australia and Asia, The research results fully reflect the important progress and development direction of the current international river sedimentology. The important progress includes the study of river dynamics and its changing process. The correlation between Cheng and the ancient strata, The study prospects of Sedimentary Dynamics, River Dynamics and variation process of River-Flood Plain system, Restoration of Channel Migration process: discussion of New Generation Plan Evolution Model, turbulence of Alluvial Rivers and bedrock Rivers, Intergranular interaction and sedimentation2) marginal rivers, including geomorphology and sedimentology of rivers entering the sea, sediment transport, geomorphology and stratigraphic characteristics, rivers in arid areas, alluvial fan systems and wind interactions, Study on the Sedimentary processes of Rivers in vegetated areas before vegetation growth, or the Sedimentary processes of Rivers in vegetated areas 3) River-Sedimentary stratigraphy and its underground resources, including source-sink systems, discussion of the usefulness of "fluvial facies models", braided rivers, reticular rivers, Including climate change, muddy vegetation flood plain and so on, which influence river sediment flux, river model, evolution of alluvial islands in river channel and stable serpentization of river. Based on the analysis of the above data, it is considered that the river evolution process from qualitative to quantitative research, physical simulation and numerical simulation technology is an indispensable means of river sedimentology research, the application of quantitative modeling, The U-Pb dating technique of detrital zircon is an important tool for the study of the new generation from source to sink and so on. It is the research direction that Chinese scholars should pay attention to and carry out.
【作者单位】：中国石油勘探开发研究院实验研究中心;提高石油采收率国家重点实验室;
【基金】：国家科技重大专项(2016ZX05003-001) 中国石油股份公司课题(2016B-0502,2016B-0302)~~
【分类号】：P512.2

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