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Article Navigation >  Acta Sedimentologica Sinica  > 2009  >  27(1): 41-47

LI Shutong. The Lake Distribution and Evolution Law of the Ordos Basin,in Triassic Yanchang Period[J]. Acta Sedimentologica Sinica, 2009, 27(1): 41-47.
Citation: LI Shutong. The Lake Distribution and Evolution Law of the Ordos Basin,in Triassic Yanchang Period[J]. Acta Sedimentologica Sinica, 2009, 27(1): 41-47.
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The Lake Distribution and Evolution Law of the Ordos Basin,in Triassic Yanchang Period

  • Key Laboratory of Gas Geochemistry, Lanzhou Oil and Gas Research Center,Institute of Geology and Geophysics, 〖JZ〗Chinese Academy of Sciences, Lanzhou 730000

  • Received Date: 1900-01-01
  • Rev Recd Date: 1900-01-01
  • Publish Date: 2009-02-10
  • Fisher diagram used to get the Yanchang period accommodation changes, combining the data of outcrop, core and logging in Yanchang group, we identified six period (Ⅰ,Ⅱ,Ⅲ,Ⅳ,Ⅴ,Ⅵ) thirddegree flooding layers, and compared them. On this basis, we further studied the lake distribution and overall evolution of the flooding layers, Ⅲ,Ⅳ,Ⅴand Ⅵ, which are corresponding to Chang7, Chang4+5, Chang3 and Chang2
    section. Finally through each flooding layer deposition center distribution characteristics, we discussed that the distribution and evolution issues of Yanchang lake basin's sedimentary depression, and believed that the Yanchang lake besides the Chang7 existed a big sedimentary depression, also there were more than one sedimentary depressions in other period, and the sedimentary depressions overall move to the northeast.
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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  • Received:  1900-01-01
  • Revised:  1900-01-01
  • Published:  2009-02-10

The Lake Distribution and Evolution Law of the Ordos Basin,in Triassic Yanchang Period

  • Key Laboratory of Gas Geochemistry, Lanzhou Oil and Gas Research Center,Institute of Geology and Geophysics, 〖JZ〗Chinese Academy of Sciences, Lanzhou 730000
  • Received Date: 1900-01-01
  • Rev Recd Date: 1900-01-01
  • Publish Date: 2009-02-10

Abstract: Fisher diagram used to get the Yanchang period accommodation changes, combining the data of outcrop, core and logging in Yanchang group, we identified six period (Ⅰ,Ⅱ,Ⅲ,Ⅳ,Ⅴ,Ⅵ) thirddegree flooding layers, and compared them. On this basis, we further studied the lake distribution and overall evolution of the flooding layers, Ⅲ,Ⅳ,Ⅴand Ⅵ, which are corresponding to Chang7, Chang4+5, Chang3 and Chang2
section. Finally through each flooding layer deposition center distribution characteristics, we discussed that the distribution and evolution issues of Yanchang lake basin's sedimentary depression, and believed that the Yanchang lake besides the Chang7 existed a big sedimentary depression, also there were more than one sedimentary depressions in other period, and the sedimentary depressions overall move to the northeast.

LI Shutong. The Lake Distribution and Evolution Law of the Ordos Basin,in Triassic Yanchang Period[J]. Acta Sedimentologica Sinica, 2009, 27(1): 41-47.
Citation: LI Shutong. The Lake Distribution and Evolution Law of the Ordos Basin,in Triassic Yanchang Period[J]. Acta Sedimentologica Sinica, 2009, 27(1): 41-47.
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