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Article: Late Quaternary faulting on the Manas and Hutubi reverse faults in the northern foreland basin of Tian Shan, China
Title | Late Quaternary faulting on the Manas and Hutubi reverse faults in the northern foreland basin of Tian Shan, China |
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Authors | |
Keywords | DGPS Loess OSL dating Reverse fault Tian Shan |
Issue Date | 2015 |
Publisher | Elsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/epsl |
Citation | Earth and Planetary Science Letters, 2015, v. 424, p. 212-225 How to Cite? |
Abstract | The Tian Shan Range lies in the actively deforming part of the India–Asia collision zone. In the northern foreland basin of Tian Shan, the strata were intensively deformed by Cenozoic folding and faulting. Slip rate studies along these faults are important for understanding the dynamics of crustal deformation and evaluating the seismic hazards in the region. Two reverse faults (the Manas and Hutubi faults) in the northern foreland basin were investigated. Due to past faulting events along these faults, the terrace treads along the Manas River were ruptured, forming fault scarps several meters in height. Loess deposits were trapped and preserved at the surface ruptures along these scarps. The thickness of the trapped loess is dependent on the size of the ruptures. The minimum and maximum ages of these scarps are constrained by dating the loess preserved at the surface ruptures and the terrace treads, respectively, using the quartz optically stimulated luminescence (OSL) dating technique. Our dating results suggest that the loess trapped at the ruptures was deposited from the early to mid-Holocene at the Hutubi Fault, and from the mid- to late-Holocene at the Manas Fault. The vertical displacements of the faults were evaluated by measuring the topographic profiles across the investigated fault scarps using the differential global position system (DGPS). Our results suggest that, during the late Quaternary in the studied region, the vertical slip rates of the Manas Fault were between ∼0.74mm/yr and
∼1.6mm/yr , while the Hutubi Fault had a much lower vertical slip rate between ∼0.34mm/yr and ∼0.40mm/yr . The tectonic implications of our results are discussed. |
Persistent Identifier | http://hdl.handle.net/10722/216831 |
ISSN | 2021 Impact Factor: 5.785 2020 SCImago Journal Rankings: 2.829 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Gong, Z | - |
dc.contributor.author | Li, SH | - |
dc.contributor.author | Li, B | - |
dc.date.accessioned | 2015-09-18T05:40:40Z | - |
dc.date.available | 2015-09-18T05:40:40Z | - |
dc.date.issued | 2015 | - |
dc.identifier.citation | Earth and Planetary Science Letters, 2015, v. 424, p. 212-225 | - |
dc.identifier.issn | 0012-821X | - |
dc.identifier.uri | http://hdl.handle.net/10722/216831 | - |
dc.description.abstract | The Tian Shan Range lies in the actively deforming part of the India–Asia collision zone. In the northern foreland basin of Tian Shan, the strata were intensively deformed by Cenozoic folding and faulting. Slip rate studies along these faults are important for understanding the dynamics of crustal deformation and evaluating the seismic hazards in the region. Two reverse faults (the Manas and Hutubi faults) in the northern foreland basin were investigated. Due to past faulting events along these faults, the terrace treads along the Manas River were ruptured, forming fault scarps several meters in height. Loess deposits were trapped and preserved at the surface ruptures along these scarps. The thickness of the trapped loess is dependent on the size of the ruptures. The minimum and maximum ages of these scarps are constrained by dating the loess preserved at the surface ruptures and the terrace treads, respectively, using the quartz optically stimulated luminescence (OSL) dating technique. Our dating results suggest that the loess trapped at the ruptures was deposited from the early to mid-Holocene at the Hutubi Fault, and from the mid- to late-Holocene at the Manas Fault. The vertical displacements of the faults were evaluated by measuring the topographic profiles across the investigated fault scarps using the differential global position system (DGPS). Our results suggest that, during the late Quaternary in the studied region, the vertical slip rates of the Manas Fault were between ∼0.74mm/yr and ∼1.6mm/yr , while the Hutubi Fault had a much lower vertical slip rate between ∼0.34mm/yr and ∼0.40mm/yr . The tectonic implications of our results are discussed. | - |
dc.language | eng | - |
dc.publisher | Elsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/epsl | - |
dc.relation.ispartof | Earth and Planetary Science Letters | - |
dc.rights | Copyright © 2015 Elsevier B.V. | - |
dc.rights | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. | - |
dc.subject | DGPS | - |
dc.subject | Loess | - |
dc.subject | OSL dating | - |
dc.subject | Reverse fault | - |
dc.subject | Tian Shan | - |
dc.title | Late Quaternary faulting on the Manas and Hutubi reverse faults in the northern foreland basin of Tian Shan, China | - |
dc.type | Article | - |
dc.identifier.email | Li, SH: shli@hku.hk | - |
dc.identifier.authority | Li, SH=rp00740 | - |
dc.identifier.authority | Li, B=rp00736 | - |
dc.description.nature | postprint | - |
dc.identifier.doi | 10.1016/j.epsl.2015.05.030 | - |
dc.identifier.scopus | eid_2-s2.0-84937863430 | - |
dc.identifier.hkuros | 250488 | - |
dc.identifier.volume | 424 | - |
dc.identifier.spage | 212 | - |
dc.identifier.epage | 225 | - |
dc.identifier.isi | WOS:000357223300020 | - |
dc.publisher.place | Netherlands | - |
dc.identifier.issnl | 0012-821X | - |