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- Title
塔里木盆地满西地区寒武系台缘带演化及其分段特征.
- Authors
闫磊; 李洪辉; 曹颖辉; 杨敏; 赵一民
- Abstract
Cambrian carbonate platform margin,where high quality reservoir developed,has attracted much attention as an important field of oil and gas exploration in Tarim Basin.Firstly,according to the seismic reflection structure and stacking pattern,Manxi platform margin of Manxi area can be divided into three sections: Lunan-Mancan section,Tazhong 32 section,Gucheng section.The study showed that the platform margin first formed in the late Early Cambrian,only distributed in the Lunnan-Mancan-Tazhong 32 section.In the late Middle Cambrian,the weak platform margin was developed in the Gucheng area,and the uniform edge was formed in the Manxi area.Secondly,the evolution of platform margin in each section of Manxi area was analyzed.The platform margin of Lunan-Mancan section underwent the evolutionary processes from ramp platform-weak edged platform margin-accretion type platform margin-progressive type platform to rim uplift platform.The platform margin of Tazhong 32 section underwent the evolutionary processes from ramp platform-weak edged platform margin:Accretion type platform margin to progressive type platform.The platform margin of Gucheng section underwent the evolutionary processes from ramp platform to progressive platform margin.Finally,the controlling factors of Cambodian platform margin evolution and migration in the Manxi area are discussed,pre-Cambrian paleogeomorphic and sea level changes mainly control the development and evolution of the platform margin of the target area.The ramp platform of the Lunnan-Mancan section and the progressive platform margin belt of the Gucheng section are favorable targets for exploration.
- Publication
Natural Gas Geoscience, 2018, Vol 29, Issue 6, p807
- ISSN
1672-1926
- Publication type
Article
- DOI
10.11764/j.issn.1672-1926.2018.05.011