Active tectonics along the Khazar fault (Alborz, Iran)
dc.contributor.author
Nazari, Hamid
dc.contributor.author
Ritz, Jean-François
dc.contributor.author
Burg, Jean-Pierre
dc.contributor.author
Shokri, Mohamadali
dc.contributor.author
Haghipour, Negar
dc.contributor.author
Mohammadi Vizheh, Mehdi
dc.contributor.author
Avagyan, Ara
dc.contributor.author
Fazeli Nashli, Hasan
dc.contributor.author
Ensani, Mohamadreza
dc.date.accessioned
2021-08-05T11:13:55Z
dc.date.available
2021-08-05T03:15:31Z
dc.date.available
2021-08-05T11:13:55Z
dc.date.issued
2021-10-01
dc.identifier.issn
1367-9120
dc.identifier.other
10.1016/j.jseaes.2021.104893
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/499563
dc.description.abstract
The Alborz Mountain accommodates some of the convergence between Central Iran and Eurasia, is characterized by active range-parallel fold and thrust structures. At present, the kinematics of the range involves a strain partitioning mechanism and clockwise rotation of the South Caspian Basin. Range-parallel, left-lateral strikeslip faulting dominates the central part of the mountain range, while reverse faulting affects its northern and southern borders. Several slip-rate studies have been carried out along active faults in the internal and southern parts of the range. However, the characteristics of the main northern bounding fault (the Khazar [Persian: Caspian] Fault) remain poorly known. Our analysis provides new constraints on the activity of this fault. We first show that the fault generally is a hidden thrust fault, often associated with fault-bend and fault-propagation folds (forebergs). In the central part of the fault, the radiocarbon dating of an uplifted terrace allows estimating minimum vertical and average horizontal slip rates of 2.0 ± 0.5 mm/yr and 3 mm/yr respectively. hence, minimum slip rate along the fault reach to 3.6 mm/yr. About 150 km further east, near the city of Behshahr, within the archeological site of Gohar-Tappe, a paleoseismological trench study on a young detachment fold suggests that at least 5 events occurred in the past 5,300 years, 3 of them with surface-rupturing between 5300- and 3900-years cal BP, our results confirm that the Khazar Fault is a major active structure in northern Iran, and represents a significant seismic hazard for the entire Central Alborz region.
en_US
dc.language.iso
en
en_US
dc.publisher
Elsevier
en_US
dc.subject
Iran
en_US
dc.subject
Alborz
en_US
dc.subject
Khazar Fault
en_US
dc.subject
Active tectonics
en_US
dc.subject
Thrust fault
en_US
dc.subject
Detachment fold (foreberg)
en_US
dc.subject
Slip rate
en_US
dc.subject
Paleoseismology
en_US
dc.title
Active tectonics along the Khazar fault (Alborz, Iran)
en_US
dc.type
Journal Article
dc.date.published
2021-07-19
ethz.journal.title
Journal of Asian Earth Sciences
ethz.journal.volume
219
en_US
ethz.journal.abbreviated
J. Asian Earth Sci.
ethz.pages.start
104893
en_US
ethz.size
11 p.
en_US
ethz.identifier.scopus
ethz.publication.place
Oxford
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02330 - Dep. Erd- und Planetenwissenschaften / Dep. of Earth and Planetary Sciences::02704 - Geologisches Institut / Geological Institute::03868 - Eglinton, Timothy I. / Eglinton, Timothy I.
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02330 - Dep. Erd- und Planetenwissenschaften / Dep. of Earth and Planetary Sciences::02704 - Geologisches Institut / Geological Institute::03868 - Eglinton, Timothy I. / Eglinton, Timothy I.
ethz.date.deposited
2021-08-05T03:15:39Z
ethz.source
SCOPUS
ethz.eth
yes
en_US
ethz.availability
Metadata only
en_US
ethz.rosetta.installDate
2021-08-05T11:14:02Z
ethz.rosetta.lastUpdated
2022-03-29T10:57:14Z
ethz.rosetta.exportRequired
true
ethz.rosetta.versionExported
true
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Journal Article [130332]