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Geometry and kinematics of Late Cretaceous inversion structures in the Jiuquan Basin, western China

Cretaceous Research

By:
, , , , ,
DOI: 10.1016/j.cretres.2005.01.005

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Abstract

Late Cretaceous inversion structures, which are significant for oil and gas accumulation, are widely distributed throughout the Jiuquan Basin. These structures are primarily made up of inverted faults and fault-related folds. Most of the axial planes of folds are parallel to inverted faults trending north-east, indicating that the principal stress direction was north-west - south-east in the Late Cretaceous. The average inversion ratios of faults in the four sags that were investigated are 0.39, 0.29, 0.38, 0.32. The average inversion ratio in the Jiuquan Basin is 0.34 and the degree of inversion is moderate to strong. As moderate inversion is suitable for forming excellent hydrocarbon traps, there is considered to be significant potential in the basin for the presence of structural traps. ?? 2005 Elsevier Ltd. All rights reserved.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Geometry and kinematics of Late Cretaceous inversion structures in the Jiuquan Basin, western China
Series title:
Cretaceous Research
DOI:
10.1016/j.cretres.2005.01.005
Volume
26
Issue:
2
Year Published:
2005
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
First page:
319
Last page:
327
Number of Pages:
9