Seismites as an indicator for determination of earthquake recurrence interval: A case study from Erciş Fault (Eastern Anatolia-Turkey)

Üner, Serkan; Özsayın, Erman; Selçuk, Azad Sağlam

doi:10.1016/j.tecto.2019.06.010

Cited by 10 publications

(6 citation statements)

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“…This result shows variable and not consistent recurrences intervals for MFZ. The inconsistency and variable recurrences interval are also reported in many active faults worldwide (e.g., Biasi et al 2002;Sözbilir et al, 2016;Üner et al, 2019;Kürçer et al, 2019, Mozafari et al, 2019. In addition to that, a remarkable number of paleoseismological studies which were conducted on normal faults in western Anatolia (Altunel et al, 1999;Gürboğa, 2013;Özkaymak et al, 2013Sözbilir et al, 2016;Basmenji et al, 2021;Akyüz et al, 2021;Kürçer et al, 2021).…”

Section: Discussionmentioning

confidence: 90%

Paleoseismic history of the Manisa fault zone, Western Anatolia

Duran¹,

Sözbi̇li̇r²,

Eski³

et al. 2021

Turkish J Earth Sci

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Along the mountain front, the Manisa Fault Zone separates the Pleistocene-Early Holocene Emlakdere and Turgutlu formations from the footwall rocks of Bornova Flysch Zone of Late Cretaceous-Paleocene age and Neogene volcano-sedimentary units (Okay et al., 1996, (Figure 2). E-W to NW-SE-striking Manisa Fault Zone (MFZ) is made up of two main fault segments at a total of 45 km long (Emre et al., 2018). Even though previous studies are mostly concentrated on the western segment of MFZ to explain Quaternary-Holocene characteristics (Özkaymak et al., 2011;Akçar et al., 2012), the studies regarding active tectonics and paleoseismology of the eastern segment of MFZ aim to unravel the Quaternary activity, and landscape evolution has so far been rarely addressed. According to Özkaymak et al's. ( 2011) studies, the western segment is responsible for three paleo-earthquakes, which

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Section: Discussionmentioning

confidence: 90%

Paleoseismic history of the Manisa fault zone, Western Anatolia

Duran¹,

Sözbi̇li̇r²,

Eski³

et al. 2021

Turkish J Earth Sci

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“…Textures defined as seismite, which are among the deformation structures formed by earthquake-induced shaking in lacustrine sediments located in the Lake Van Basin, are among the structures frequently encountered in the study area (Figure 8a). These seismites have an important place in regional seismic hazard assessment making it possible to deduce the possible recurrence period of the earthquakes (Üner, Özsayın, & Sa glam, 2019; Figure 8b). In the study area, seismites observed in five locations in sandy and silty shallow lacustrine deposits by Üner et al (2019) were divided into types (Figure 8a,b) and aged by optically simulated luminescence (OSL) technique.…”

Section: Segmentation and Deformation Characteristics Of Erciş Fault From Field Studiesmentioning

confidence: 99%

“…In the study area, seismites observed in five locations in sandy and silty shallow lacustrine deposits by Üner et al (2019) were divided into types (Figure 8a,b) and aged by optically simulated luminescence (OSL) technique. When these data were evaluated, it was determined that the earthquake recurrence period is 125-350 years (M ≥ 5) in the northern part of Lake Van Basin and that the Çaldıran and Erciş Faults are the primary seismic sources in this region (Özkaymak et al, 2011;Sa glam-Selçuk et al, 2016;Üner et al, 2019).…”

Section: Segmentation and Deformation Characteristics Of Erciş Fault From Field Studiesmentioning

confidence: 99%

Long‐term slip rate estimation for Erciş Fault in East Anatolian Compressive Tectonic Block from geologic and geomorphologic field evidence

Selçuk

Kul

2021

Geological Journal

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The Erciş Fault, which bounds the northern part of the Lake Van Basin, is approximately 50 km long with right‐lateral strike‐slip movement in a N30‐50°W direction. The Erciş Fault starts in the northwest, south of Girekol Volcano, and extends to the Turkey‐Iran border, and together with the Çaldıran Fault forms the tectonic boundary between the Turkey‐Iran Block and Lesser Caucasus‐Talesh Block. Offset riverbeds, fault‐controlled drainage systems, deformed alluvial fans along the faults, Plio‐Quaternary volcanics, and volcanic structures are geomorphic and tectonic features that show that the Erciş Fault is active in the region. This fault has played an active role in the deformation of the Eastern Anatolian Plateau, which developed as a result of collision of the Arabian and Eurasian plates. In this study, the role of the Erciş Fault in the tectonic evolution of the region was investigated using geologic, geomorphologic, and remote sensing analysis methods. According to the morphometric indices used in the study, values of 1 < Smf < 2.1, 0.2 < Vf < 3.29, 0.3 < HI < 0.5, 25 < SL < 850 and 100 < Ksn < 600 were obtained. Results show that the area has an extremely young topography and is actively uplifting. It has been determined that the uplift rate in the region has increased in the northwest and south‐east compared to other areas and is more than 0.5 mm yr−1. According to the remote sensing and field studies, an approximately 850 m right‐lateral offset is observed in the Deliçay River, which is cut by the Erciş Fault, and that the long‐term slip rate of the Erciş Fault is 2.02 ± 0.12 mm yr−1.

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“…From geological history until today, earthquake events occur occasionally. Since the late 1980s, many geologists initiated a lot of research programs about the seismites and sequences of seismites conserved in strata from Precambrian to Cenozoic, and attained a series of plentiful achievements that kept abreast with international standard [8][9][10][11][12][13][14][15] . However, previous studies involving Upper Yangtze plate were very few, especially in Sichuan basin, only Liang et al reported the unconformity and seismites triggered by earthquake at the continental margin of the western Sichuan basin and the western Yunnan province in Permian, and Wu and Yin studied the seismites sequences in lacustrine clastic rocks in the late Jurassic at Emei, Sichuan Basin [16,17,18].…”

Section: Introductionmentioning

confidence: 99%

Earthquake Sedimentary Event Record In Early Triassic In Southeastern Sichuan Basin, Sw China

2022

JMSRO

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There are some macroscopic and microscopic sedimentary structures of seismic events in the outcrops in Lower Triassic Feixianguan Fm (T1 f). and Jialingjiang Fm (T1 j). in southeastern parts of Sichuan Basin. The following basic types of sedimentary structures could be observed: Soft-sediment liquefied deformation structures include curled deformation (sliding deformation structure," sausage structure") and microscopic folds (laminated plastic deformation). Seismites emerge in T1 f 1 and T1 f 2 in Baimiaozi section, Beibei, Chongqing, while in T1 j 2 at Longdongwan, Xuyong, Sichuan, as well as the same strata at Xingwen, Sichuan and Xishui, Guizhou. The sedimentary sequences of seismites in outcrops are clear, presenting the whole process of paleoearthquake from strong to weak. The author argues that the Sanjiang tectonic belt represented by the evolution of Yidun arc in the western Sichuan had strong activities at the west margin of the upper Yangtze plate, which may be related to the formation of seismites in the early Triassic. Earthquake activities and volcanic eruption can be triggered in large areas by the plate collision and the subduction of oceanic crust in the Sanjiang tectonic belt.

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Seismites as an indicator for determination of earthquake recurrence interval: A case study from Erciş Fault (Eastern Anatolia-Turkey)

Cited by 10 publications

References 65 publications

Paleoseismic history of the Manisa fault zone, Western Anatolia

Paleoseismic history of the Manisa fault zone, Western Anatolia

Long‐term slip rate estimation for Erciş Fault in East Anatolian Compressive Tectonic Block from geologic and geomorphologic field evidence

Earthquake Sedimentary Event Record In Early Triassic In Southeastern Sichuan Basin, Sw China

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