Thin-skinned and thick-skinned tear faults in central Tarim Basin

Currently, the interpretation scheme for strike slip faults in the central Tarim Basin does not typically take into account the depth of tear faults. This paper specifically explores this aspect, focusing on two tear faults (Nos. 4 and 7) to examine the thick-skinned and thin-skinned systems in the...

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Main Authors: Qing Bian, Zhendong Wang, Bo Zhou, Fei Ning
Format: Article
Language:English
Published: Elsevier 2023-12-01
Series:Journal of Asian Earth Sciences: X
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2590056023000257
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author Qing Bian
Zhendong Wang
Bo Zhou
Fei Ning
author_facet Qing Bian
Zhendong Wang
Bo Zhou
Fei Ning
author_sort Qing Bian
collection DOAJ
description Currently, the interpretation scheme for strike slip faults in the central Tarim Basin does not typically take into account the depth of tear faults. This paper specifically explores this aspect, focusing on two tear faults (Nos. 4 and 7) to examine the thick-skinned and thin-skinned systems in the area. By utilizing high-resolution seismic data, we discovered that No. 4 Fault is a thick-skinned tear fault whereas No. 7 Fault is a thin-skinned tear fault. Additionally, we have calculated the strata shortening data for both Nos. 4 and 7 Faults to further our understanding of these systems. For No. 4 Fault, we observed shortening differences between the western and eastern sections in both the supra- and sub-salt strata, whereas for No. 7 Fault, we observed shortening differences only in the supra-salt strata. We demonstrated that under the action of thrusting, a tear fault could penetrate the salt layer if there is a shortening difference in the different positions of the sub-salt strata. A lack of shortening difference in the sub-salt strata implies that a tear fault should be thin-skinned which cannot penetrate the salt layer, even though the sub-salt strata may be deformed during thrusting.
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spelling doaj.art-0062e0b611b84cd2b6bc59cf0edd3cf72023-12-12T04:35:35ZengElsevierJournal of Asian Earth Sciences: X2590-05602023-12-0110100160Thin-skinned and thick-skinned tear faults in central Tarim BasinQing Bian0Zhendong Wang1Bo Zhou2Fei Ning3Petroleum Exploration and Production Research Institute, Sinopec, Beijing, China; Corresponding author.Petroleum Exploration and Production Research Institute, Sinopec, Beijing, China; National Energy Laboratory of Carbonate Oil and Gas, Sinopec, Beijing, China; Key Laboratory of Deep Geology and Resources, Sinopec, Beijing, ChinaPetroleum Exploration and Production Research Institute, Sinopec, Beijing, ChinaPetroleum Exploration and Production Research Institute, Sinopec, Beijing, ChinaCurrently, the interpretation scheme for strike slip faults in the central Tarim Basin does not typically take into account the depth of tear faults. This paper specifically explores this aspect, focusing on two tear faults (Nos. 4 and 7) to examine the thick-skinned and thin-skinned systems in the area. By utilizing high-resolution seismic data, we discovered that No. 4 Fault is a thick-skinned tear fault whereas No. 7 Fault is a thin-skinned tear fault. Additionally, we have calculated the strata shortening data for both Nos. 4 and 7 Faults to further our understanding of these systems. For No. 4 Fault, we observed shortening differences between the western and eastern sections in both the supra- and sub-salt strata, whereas for No. 7 Fault, we observed shortening differences only in the supra-salt strata. We demonstrated that under the action of thrusting, a tear fault could penetrate the salt layer if there is a shortening difference in the different positions of the sub-salt strata. A lack of shortening difference in the sub-salt strata implies that a tear fault should be thin-skinned which cannot penetrate the salt layer, even though the sub-salt strata may be deformed during thrusting.http://www.sciencedirect.com/science/article/pii/S2590056023000257Salt tectonicsStrike-slip faultsTarim BasinTear faults
spellingShingle Qing Bian
Zhendong Wang
Bo Zhou
Fei Ning
Thin-skinned and thick-skinned tear faults in central Tarim Basin
Journal of Asian Earth Sciences: X
Salt tectonics
Strike-slip faults
Tarim Basin
Tear faults
title Thin-skinned and thick-skinned tear faults in central Tarim Basin
title_full Thin-skinned and thick-skinned tear faults in central Tarim Basin
title_fullStr Thin-skinned and thick-skinned tear faults in central Tarim Basin
title_full_unstemmed Thin-skinned and thick-skinned tear faults in central Tarim Basin
title_short Thin-skinned and thick-skinned tear faults in central Tarim Basin
title_sort thin skinned and thick skinned tear faults in central tarim basin
topic Salt tectonics
Strike-slip faults
Tarim Basin
Tear faults
url http://www.sciencedirect.com/science/article/pii/S2590056023000257
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