THE TECTONIC CHARACTERISTICS ON THE FORELAND THRUST BELT AND ITS INFLUENCE ON RESERVOIRING OF OIL AND NATURAL GAS INSOUTHERN JUNGGAR BASIN 

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  • 1.Northwest Branch, Research Institute of Petroleum Exploration and Development, PetroChina, Lanzhou 730020, China;2.Research Institute of Petroleum Exploration and Development, Xinjiang Oilfield Branch Company,PetroChina, Karamay 834000, China

Received date: 2006-07-25

  Revised date: 2006-08-16

  Online published: 2006-10-20

Abstract

The Junggar basin suffered multiple stage-times tectonic movements successively in Hercynian epoch, Indo-chinese epoch, Yanshan epoch and Himalayan epoch since late Paleozic era, stretching, pressing and cutting etc, tectonic actions happened by turns, multiple gyre tecnotic evolution resulted in the structure assemblages with various patterns and be activated for long time, which caused numerous faults with different scale and folds with various styles to be formed. In particular, Under the control of the evolutions of Tianshan orogenic zone and its adjacent area, various basin-styles and structure distortion in multiple stage-times were piled up, abundance of faults and complex structure were produced accordingly in the Forland thrust belt in southern Junggar basin. Here are complexities of structure features of the Foreland thrust belt in southern Junggar basin be pointed out. Because of the effect of compression deformation and thrusting intensely in late Tertiary era, there were provided with complex and changeable Cenozoic thrusting and pressing structures and buried preceding thrust-wedge, step reverse thrust and all kinds of folds related to fault in turn from south to north, these characteritics displays “classified some segments from west to east, classified some rows form south to north”. The power from the rise of orogenic belt needs to conquer different obstructs while it be released, which leads to these structure put up similar deformation feature but quite a few difference between the eastern segment, middle segment and western segment in the thrust fault zone.

 

Cite this article

CHEN Tao,WEI Dong-tao, YANG Hai-bo,WU Liang-yu . THE TECTONIC CHARACTERISTICS ON THE FORELAND THRUST BELT AND ITS INFLUENCE ON RESERVOIRING OF OIL AND NATURAL GAS INSOUTHERN JUNGGAR BASIN [J]. Natural Gas Geoscience, 2006 , 17(5) : 711 -718 . DOI: 10.11764/j.issn.1672-1926.2006.05.711

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