摘要
冲积扇是发育于盆地边缘的一种重要的沉积相类型。近20年来,在冲积扇分布的控制作用、内部构型及储集层特征研究等方面取得了很大的进展:(1)深化了断层活动、物源岩性条件及不同级次基准面旋回对冲积扇沉积构型的控制作用机理;(2)建立了碎屑流主控、碎屑流与河流主控、河流主控的冲积扇以及末端扇的沉积构型模式;(3)分析了冲积扇沉积机制及沉积构型对储集层质量的控制作用。今后有必要充分应用水槽模拟实验、沉积数值模拟和探地雷达等先进技术,对冲积扇沉积过程、内部构型及储集层非均质性进行更为深入的研究。
Alluvial fan,which develops in the margin of the basin,is a significant sedimentary faci-es type.In recent two decades,great progress has been made in the controlling of distribution,internal architecture and reservoir characteristics of alluvial fans.Firstly,the controlling of fault activities,litholo-gy of provenance,and the base-level cycles on alluvial fan depositional architecture were elaborated.Sec-ondly,three depositional architecture models of alluvial fans and terminal fans were established,inclu-ding the alluvial fan dominated by debris flow,alluvial fan co-dominated by debris flow and fluvial and fluvial fan.Thirdly,how depositional fabric and mechanism of alluvial fan control the reservoir quality was analyzed.Further research is required on the process of deposition,internal architecture and reservoir het-erogeneity of alluvial fans through advanced technologies,such as advanced flume simulation experiment,＆amp;nbsp;numerical simulation of deposition,GPR and so on.
出处
《古地理学报》
CAS
CSCD
北大核心
2016年第4期497-512,共16页
Journal of Palaeogeography：Chinese Edition
基金
国家自然科学基金面上项目(编号:41372116)资助~~
关键词
冲积扇
控制因素与机理
沉积构型
储集层质量
alluvial fan, controlling factors and mechanism, depositional architecture, reservoir quality
