Luminescence dating of the last earthquake of the Sabzevar thrust fault, NE Iran

Iran is one of the world's most tectonically active regions, yet dating past earthquakes for neotectonic studies has been limited. One of the main reasons for this is that organic material suitable for radiocarbon dating of deformed sediments is rare. We investigate the use of infrared stimulat...

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Main Authors: Fattahi, M, Walker, RT
Format: Journal article
Language:English
Published: 2007
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author Fattahi, M
Walker, RT
author_facet Fattahi, M
Walker, RT
author_sort Fattahi, M
collection OXFORD
description Iran is one of the world's most tectonically active regions, yet dating past earthquakes for neotectonic studies has been limited. One of the main reasons for this is that organic material suitable for radiocarbon dating of deformed sediments is rare. We investigate the use of infrared stimulated luminescence (IRSL) from coarse-grained feldspars to date colluvial deposits associated with the Sabzevar thrust fault in northeastern Iran. The single-aliquot regenerative (SAR) dose measurement procedure was used for this study. The current study investigates monitoring and correcting for sensitivity changes, recovering a known laboratory dose and equivalent dose estimation using three SAR IRSL methods. It is shown that SAR has recovered a given laboratory dose using a range of preheat temperatures but De determination of natural samples requires its own preheat plateaus for two of these SAR methods. The SAR IRSL method provided an age of 1.7±0.3 ka for colluvium, predating the last earthquake event on the Sabzevar fault. This result suggests that this fault is likely to be responsible for an earthquake that destroyed Sabzevar city in AD 1052. © 2006 Elsevier Ltd. All rights reserved.
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spelling oxford-uuid:19c20309-372f-4473-b916-36d71dd553352022-03-26T10:50:45ZLuminescence dating of the last earthquake of the Sabzevar thrust fault, NE IranJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:19c20309-372f-4473-b916-36d71dd55335EnglishSymplectic Elements at Oxford2007Fattahi, MWalker, RTIran is one of the world's most tectonically active regions, yet dating past earthquakes for neotectonic studies has been limited. One of the main reasons for this is that organic material suitable for radiocarbon dating of deformed sediments is rare. We investigate the use of infrared stimulated luminescence (IRSL) from coarse-grained feldspars to date colluvial deposits associated with the Sabzevar thrust fault in northeastern Iran. The single-aliquot regenerative (SAR) dose measurement procedure was used for this study. The current study investigates monitoring and correcting for sensitivity changes, recovering a known laboratory dose and equivalent dose estimation using three SAR IRSL methods. It is shown that SAR has recovered a given laboratory dose using a range of preheat temperatures but De determination of natural samples requires its own preheat plateaus for two of these SAR methods. The SAR IRSL method provided an age of 1.7±0.3 ka for colluvium, predating the last earthquake event on the Sabzevar fault. This result suggests that this fault is likely to be responsible for an earthquake that destroyed Sabzevar city in AD 1052. © 2006 Elsevier Ltd. All rights reserved.
spellingShingle Fattahi, M
Walker, RT
Luminescence dating of the last earthquake of the Sabzevar thrust fault, NE Iran
title Luminescence dating of the last earthquake of the Sabzevar thrust fault, NE Iran
title_full Luminescence dating of the last earthquake of the Sabzevar thrust fault, NE Iran
title_fullStr Luminescence dating of the last earthquake of the Sabzevar thrust fault, NE Iran
title_full_unstemmed Luminescence dating of the last earthquake of the Sabzevar thrust fault, NE Iran
title_short Luminescence dating of the last earthquake of the Sabzevar thrust fault, NE Iran
title_sort luminescence dating of the last earthquake of the sabzevar thrust fault ne iran
work_keys_str_mv AT fattahim luminescencedatingofthelastearthquakeofthesabzevarthrustfaultneiran
AT walkerrt luminescencedatingofthelastearthquakeofthesabzevarthrustfaultneiran