赵芸,张昌民,朱锐,冯文杰,赵康
ZHAO Yun,ZHANG Changmin,ZHU Rui,FENG Wenjie,ZHAO Kang

• 1:长江大学地球科学学院

摘要(Abstract)：

分支河流体系(DFS)是基于对全球700余个现代沉积盆地中冲积河流沉积体系进行统计分析基础上提出的新术语,它是指河流从某一顶点开始进入盆地并呈放射状展布的沉积体系。通过梳理10 a来相关学者对全球范围内现代及岩石记录中DFS的研究成果,介绍了分支河流体系的概念、规模、特征等方面的研究现状。结果表明DFS的形态和分布是构造和气候共同作用的产物,其中构造活动是DFS发育的前提和决定性因素;DFS研究应注重其近端、中段、远端在时间和空间上的连接关系,以建立DFS沉积模式;最后总结了DFS的研究技术和方法。分支河流体系概念的提出及沉积模式研究,拓展了认识大型河流沉积体系的思路,使冲积扇沉积学、河流沉积学和沉积体系研究不断得以深入,对进一步认识中国陆相盆地的沉积体系及指导油气资源勘探开发等具有重要的意义。
Distributive fluvial system(DFS) is a new term based on the statistical analysis on the sedimentary system for the alluvial rivers in more than 700 current sedimentary basins around the world, which refers to the sedimentary system when rivers enter the basin from a certain vertex and spread radially. Through the summary of the research on DFS in modern and rock records over the past 10 years, the concept, scale, feature of the distributive fluvial system were introduced. The studies show that the morphology and distribution of DFS are the products of the tectonics and climate, in which the tectonic activities are the precondition and decisive factor for the development of DFS. The studies on DFS should focus on the time-space connections of the proximal, middle and distal ends, so as to establish DFS sedimentary model. Finally, the techniques and methods of DFS research were summarized.The proposed concept and sedimentary model of DFS have extended the new thinking to understand the large fluvial sedimentary system, which is a reflection of the deepening research of alluvial fan sedimentology, fluvial sedimentology and sedimentary system.It is of great significance to further understand the sedimentary system of Chinese continental basins and guide the exploration and development of oil and gas resources.

关键词(KeyWords)： 分支河流体系;沉积体系;沉积模式;陆相盆地;研究进展
distributive fluvial system(DFS);sedimentary system;sedimentary model;continental basin;research progress

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目“中国西部主要盆地周缘及邻区分支河流体系分布与沉积模式”(41772094)

作者(Author): 赵芸,张昌民,朱锐,冯文杰,赵康
ZHAO Yun,ZHANG Changmin,ZHU Rui,FENG Wenjie,ZHAO Kang

DOI: 10.19597/j.issn.1000-3754.202009042

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