Quantification Sedimentology Features and Evolution in East-North segment of Chang-Ping Continetal Deposit Red Basin
- Received Date: 1997-06-02
- Rev Recd Date: 1998-06-04
- Publish Date: 1998-08-10
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Key words:
- Chang-Ping B asin quantification /
- sediment ology /
- alluvial fan
Abstract: T he C hang-Ping continental deposit red basin consists of five alluvial fans fo rming different three stages. T he different st ages fans were separated by special bounding surfaces respectively.The fan- roots w ere located at the north of the basin.T he palaeoflow direction w as fan shaped dist ributio n.T he average volume of the big g ravels and mixing coefficient w ere biggest in the fan root, and w ere decreased nonlinear progessively from fan root to fringe.T he material source area conty olled t he composition of g ravels. A ccording to quantification sedimentology features and fo rming set ting, it successively underw ent orlginal pregnancy, denude and st rong fill, three stages in the course of t he Basin evolution.T he proluvial events started in late C retaceous Period and finished in Eogene Period Eocene-O ligocene Epoch.
Citation: | Zhang Zejun. Quantification Sedimentology Features and Evolution in East-North segment of Chang-Ping Continetal Deposit Red Basin[J]. Acta Sedimentologica Sinica, 1998, 16(4): 55-61. |