Formed Proceeding and Evolution Disciplinarian of Fan Delta

ZHANG Chun sheng; LIU Zhong bao; SHI Dong; JIA Ai lin

Formed proceeding and evolution disciplinarian of fan delta are studied in detail using experimental sedimentary.It points that formed of fan delta dues to alternating function of spasmodic flooding and usually flowing.Debris flood and mud rock flow are mainly sedimentary at flooding period,tractional current is main as a rule.In course of continuing of sedimentary,formed of fan delta is increaseing out of sync in plane and rate of stretch is larger than rate of elongation in the course of declining of datum plane.Formed of fan delta is smooth tongue in the edge of delta.Removing and waver of braided river course leads to evolution disciplinarian of fan delta.Tectonic motive intension is similar positive correlativity with removing and waver of braided river course.Deep of lake,slope of accessing lake,formed of braided river course,flow change rate and grain size are importance agent that affecting evolution of fan delta.

1. Department of Petroleum,Chendu College of Technology,Chendu Sichuan 610059;

2. Jianghan Petroleum Institute,Jingzhou Hubei 434102

Received Date: 2000-04-14

Rev Recd Date: 2000-07-08

Publish Date: 2000-08-10

Key words:

Abstract: Formed proceeding and evolution disciplinarian of fan delta are studied in detail using experimental sedimentary.It points that formed of fan delta dues to alternating function of spasmodic flooding and usually flowing.Debris flood and mud rock flow are mainly sedimentary at flooding period,tractional current is main as a rule.In course of continuing of sedimentary,formed of fan delta is increaseing out of sync in plane and rate of stretch is larger than rate of elongation in the course of declining of datum plane.Formed of fan delta is smooth tongue in the edge of delta.Removing and waver of braided river course leads to evolution disciplinarian of fan delta.Tectonic motive intension is similar positive correlativity with removing and waver of braided river course.Deep of lake,slope of accessing lake,formed of braided river course,flow change rate and grain size are importance agent that affecting evolution of fan delta.

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Formed Proceeding and Evolution Disciplinarian of Fan Delta

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