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Quantitative Evaluation of Activities for Contemporaneous Reverse Faults and Associated Folds: A Case Study of Huwan District in Northwestern Margin of Junggar basin(PDF)

《新疆石油地质》[ISSN:1001-3873/CN:65-1107/TE]

Issue:
2018年03期
Page:
296-
Research Field:
Publishing date:

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Title:
Quantitative Evaluation of Activities for Contemporaneous Reverse Faults and Associated Folds: A Case Study of Huwan District in Northwestern Margin of Junggar basin
Author(s):
XIA Qinyu12 WU Shenghe2 FENG Wenjie3
(1.Research Institute of Petroleum Exploration and Development, PetroChina, Beijing 100083, China; 2.College of Geosciences, China University of Petroleum, Beijing 102249, China; 3.College of Geosciences, Yangtze University, Wuhan 430100, China)
Keywords:
Junggar basin northwestern margin Triassic Karamay formation contemporaneous reverse fault associated fold activity intensity quantitative evaluation
PACS:
TE111;P542
DOI:
10.7657/XJPG20180306
Abstract:
The paper quantitatively analyzes the activities of the contemporaneous reverse faults and the associated folds in Triassic Karamay formation of Huwan district in the northwestern margin of Junggar basin by comprehensively using growth index and fault throw, and discusses the correlation between the activity intensities of the contemporaneous reverse fault and the associated fold. The research shows that the activity intensity of Karamay fault which is a primary-order contemporaneous reverse fault is much higher than those of other small-scale contemporaneous reverse faults. The analysis of strata denudation restoration indicates that the activity intensity of the associated folds gradually increased during the deposition of Karamay formation. It is further found that the parameters of the associated folds well correlate with those of the activity of contemporaneous reverse faults. The length, width, rising amplitude and activity intensity of the associated fold are linearly positively correlated to those parameters of the faults, the structural area of the associated fold exhibits an exponential relationship with the activity parameters of the fault, and the rising amplitude of the associated fold well correlates to the growth index and fault throw of the fault

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Last Update: 2018-05-31