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IJSTR >> Volume 2- Issue 1, January 2013 Edition



International Journal of Scientific & Technology Research  
International Journal of Scientific & Technology Research

Website: http://www.ijstr.org

ISSN 2277-8616



Effect Of Tectonic Movements In The Composition Of Different Structural Patterns In The Sangonghe Formation, Baolang Oilfield, Baobei District, Northwest China

[Full Text]

 

AUTHOR(S)

Fahd A.Q. Al-qaraafi, Yao Guangqing

 

KEYWORDS

Index Terms:- Baobei Anticline, Baobei District, Baolang Oilfield, Sangonghe Formation, Tectonic Movements, Yanqi Basin.

 

ABSTRACT

Abstract:- Problem statement: The study area is located between the Indian and Eurasian plates. The area was subjected to many tectonic movements that led to the formation of a complex structural environment. The present work is to study the different structural features of folding and faulting. Approach: The study evaluated the tectonic settings from previous studies and developed a three-dimensional structure model using petrel software and through the analysis of core samples. Result: Tectonic movement is the main reason for the deformation of the sedimentary basin and for the division of the basin from north to south. Moreover, the Yanshan and Himalayan movements have led to the division of the basin system into Yanqi uplift, static depression, and the Bohu depression. The Yanshan (Early Jurassic) movement is also responsible for the folding of the sedimentary layers because of the southwest (SW)-northwest (NW) pressure resulting from the subduction of the Indian plate beneath the Eurasian plate. Due to the inhomogeneity of the movement force, the compression force in the middle of the fold is much greater than at the peripheries. The axis of this folding extends from northsouth (NS) to southeast; therefore, the resultant fold axis is in the NS of the southern part. The northeast (NE) limp dips 45° while the SW limp dips 11°. This folding is accompanied by the formation of a series of complex faulting. This series of faulting is divided into three groups according to location, comprising NE, NW, and central parts. The biggest fault is F1, which extends for 7 km. Most of the faults are parallel to the fold axis.

 

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