SU Jian pin, WU Bao xiang, LEI Huai yan, FU Guo ming. The Sedimentary Formation and Analyses for Dynamic Evolution of Jiuxi Cretaceous Basin, Gansu Province[J]. Acta Sedimentologica Sinica, 2002, 20(4): 568-573.
Citation:
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SU Jian pin, WU Bao xiang, LEI Huai yan, FU Guo ming. The Sedimentary Formation and Analyses for Dynamic Evolution of Jiuxi Cretaceous Basin, Gansu Province[J]. Acta Sedimentologica Sinica, 2002, 20(4): 568-573.
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The Sedimentary Formation and Analyses for Dynamic Evolution of Jiuxi Cretaceous Basin, Gansu Province
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1 Institute of Environmental Engineering of Cold and Arid Areas,CAS,Lanzhou 730000;
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2 The 3th Institute of Geology and Mineral Exploration, Langzhou 730050;
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3 Lanzhou Institute of Geology,CAS, Lanzhou 730000;
- Received Date: 2001-12-07
- Rev Recd Date:
2002-02-27
- Publish Date:
2002-12-10
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Abstract
In Gansu province, Jiuxi Cretaceous Basin is a monotype basin,in which grows sedimentary system of fan-shaped aIIuviaI fan deIta,subgravity fIow,Iacustrine and fIuviaI facies. It was made up of some patterns combined by sedimentary system of fan-shaped aIIuvium-fan deIta-shaIIow Iakeshore-graveIIy braided stream,subgravity fIow-mid-deep Iacustrine fan deIta and fan deIta-mid-shaIIow fIuviaI facies. According to isochronic surface,fiIIed seguences in Iacus- trine basin can be divided into three tectonic seguences corresponding respectiveIy to three evoIutionary stages of embryon-ic rift,spread rift-thermaI attenuationary subsidence and basin shrinkage cIosure. On the basis of these evidences,it can be seen that either formation and attenuation of mantIe' s thermaI coIumn or remote stress , such as Yanshan movement,etc., controIIed the evoIution of the Jiuxi Cretaceous Basin.
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Proportional views
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