Numerical Simulation of the Paleogene-Neogene Sedimentary Cycles in the West Segment,North Edge of Qaidam Basin

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  • 1.Key Laboratory of Orogenic Belts and Crustal Evolution,Ministry of Education,School of Earth and Space Sciences,Peking University,Beijing 100871,China;
    2.Research Institute of Exploration and Development,PetroChina Qinghai Oilfield Company,Dunhuang 736202,China

Received date: 2011-10-25

  Revised date: 2012-08-10

  Online published: 2012-10-10

Abstract

Stratigraphic correlation is difficult in the west segment,north edge of Qaidam basin due to the lack of marker beds,and the traditional method of sedimentary cycle division is highly dependent on researchers.Researchers have tried single spectrum method to solve the above problems,but the results need to be improved.In this paper,we analyze and determine the division of Paleogene-Neogene sedimentary cycles in the west segment,north edge of Qaidam basin with mathematical method of combining frequency spectral analysis,moving average and wavelet analysis.Also we analyze research meaning of division about sedimentary cycles in layer division and analysis of sedimentary environment.Results show that it is complementary,interactive and effective to apply three methods synthetically for sedimentary cycle analyses,and division of sedimentary cycles is an effective assistant method to stratigraphic correlation.Partitioning results of sedimentary cycles are very useful to analyze amplitude of variation and frequency characteristic of sediment-size and deepen the understanding of the variance in sediment environment.

Cite this article

LIU Rui-juan,GUAN Ping, ZHANG Yong-shu,JIAN Xing,WANG Mu,FENG Fan . Numerical Simulation of the Paleogene-Neogene Sedimentary Cycles in the West Segment,North Edge of Qaidam Basin[J]. Natural Gas Geoscience, 2012 , 23(5) : 841 -848 . DOI: 10.11764/j.issn.1672-1926.2012.05.841

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