Refining the OSL age of the last earthquake on the Dheshir fault, Central Iran

Fattahi, Morteza; Nazari, Hamid; Bateman, Mark D.; Meyer, Bertrand; Sébrier, Michel; Talebian, Morteza; Dortz, K. Le; Foroutan, M.; Givi, F Ahmadi; Ghorashi, M

doi:10.1016/j.quageo.2009.04.005

Cited by 45 publications

(27 citation statements)

References 25 publications

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“…High-resolution and highprecision dating of seismic events that help to calculations of recurrence intervals on timescales of decades to several thousand years is challenging, particularly in semi-arid to arid settings, where organic debris for 14 C dating is uncommon. Recent studies (e.g., Banerjee et al, 2001;Lu et al, 2007;Porat et al, 2009;Fattahi et al, 2010;Liu et al, 2010;Wang et al, 2012) have shown that optical dating of earthquake-related deposits is capable of producing robust chronologies of paleo-earthquake events. However, a potential problem in such settings is that light exposure of earthquake-related sediments may have been insufficient to fully reset (bleach) the OSL signal prior to deposition (Cunha et al, 2009;Yang et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Coarse versus fine-grain quartz optical dating of the sediments related to the 1985 Ms7.1 Wuqia earthquake, northeastern margin of the Pamir salient, China

et al. 2017

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Optical dating of earthquake related sediments were investigated including one modern sample and three samples from a trench excavated across the 1985 Ms7.4 Wuqia Earthquake surface rupture. The results indicated that equivalent dose (D e ) values vary with grain size and the method used for D e determination. The residual dose of the modern sample is 0.1 ka (0.2 +0.2 -0.1 Gy) for the quartz single grain measurements. Only 1.5-3.6% of the grains have a detectable OSL signal. Single grain quartz ages are similar to the expected ages. Fine grain quartz results overestimate the D e values and are much older than single grain quartz and coarse grain quartz small aliquot standardized growth curve (SA-SGC) ages. Single grain quartz OSL dating may be optimal for dating earthquake related deposits, but SA-SGC can save measurement time and has potential for dating some poorly bleaching samples.

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Section: Introductionmentioning

confidence: 99%

Coarse versus fine-grain quartz optical dating of the sediments related to the 1985 Ms7.1 Wuqia earthquake, northeastern margin of the Pamir salient, China

et al. 2017

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“…The quartz OSL signal was previously used by Fattahi et al (2010) in their study of recent earthquake activity along a fault in Iran.…”

Section: Osl Datingmentioning

confidence: 99%

“…A typical OSL decay curve is shown in the inset to Fig. 3A; it is much more intense than the signals presented by Fattahi et al (2010). For D e calculation, the first 5 s integral of the OSL decay curve was used after subtracting the integrated counts for the last 5 s. Bleaching was provided by a solar simulator (SOL2) and the exposure time was 180 s.…”

Section: Samples and Instrumentsmentioning

confidence: 99%

Luminescence age constraints on palaeo-earthquake events along the lingwu fault in the Yinchuan Basin, China

Wang

Chai

et al. 2011

Geochronometria

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Abstract:Optically stimulated luminescence (OSL) dating was applied to sediment samples in order to provide age constraints on the palaeo-earthquake events that are recorded in a trench on the Lingwu fault near Yinchuan on the northeastern margin of the Tibetan Plateau, China. Combining seventeen OSL ages with field observations in the trench shows that at least four events took place at this specific site, and that this fault has been active over the past 200 ka.

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“…The single-aliquot regenerative-dose (SAR) protocol (Murray and Wintle, 2003) is extensively used for measuring the equivalent dose (De), providing a high degree of precision and accuracy for OSL ages (Murray and Olley, 2002). OSL dating studies based on the SAR protocol applied to date earthquake-related deposits provide reliable results (Porat et al, 1996;Chen et al, 2003;Fattahi et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Application of Osl Method in Dating Past Earthquakes

et al. 2017

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The aim of this study was to establish a chronological frame of paleoseismic events of Gyrtoni Fault, (Thessaly, Central Greece), with the use of OSL dating method. The Gyrtoni Fault, defines the north-eastern boundary of the Middle-Late Quaternary Tyrnavos Basin, and was previously investigated with geological methods. Twenty five fluvial-colluvial sediment and pottery samples were collected from two paleoseismological trenches, excavated along the Gyrtoni Fault, from both the upthrown and the downthrown fault blocks. Optically Stimulated Luminescence (OSL) dating was applied to coarse grain quartz using the single-aliquot regenerative-dose (SAR) protocol. Investigations of luminescence characteristics using various tests confirmed the suitability of the material for OSL dating using the SAR protocol. Radioactivity measurements were performed in order to estimate the annual dose rateof the surrounding soils to which the quartz grains were submitted during the burial period of the collected samples. The estimated OSL ages agreed well with the available stratigraphical data, and archaeological evidence. The occurrence of three surface faulting events in a time span between 1.42 ± 0.06 ka and 5.59 ± 0.13 ka was revealed while an earlier faulting event (fourth) was also recognized to be older than 5.59 ± 0.13 ka.

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Refining the OSL age of the last earthquake on the Dheshir fault, Central Iran

Cited by 45 publications

References 25 publications

Coarse versus fine-grain quartz optical dating of the sediments related to the 1985 Ms7.1 Wuqia earthquake, northeastern margin of the Pamir salient, China

Coarse versus fine-grain quartz optical dating of the sediments related to the 1985 Ms7.1 Wuqia earthquake, northeastern margin of the Pamir salient, China

Luminescence age constraints on palaeo-earthquake events along the lingwu fault in the Yinchuan Basin, China

Application of Osl Method in Dating Past Earthquakes

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