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Research advances in alluvial fan depositional architecture
Pages: 497-512
Year: Issue:  4
Journal: Journal of Palaeogeography

Keyword:  alluvial fancontrolling factors and mechanismdepositional architecturereservoir quality;
Abstract: 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, numerical simulation of deposition,GPR and so on.
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