Late Pleistocene–Holocene evolution of the southern Marmara shelf and sub-basins: middle strand of the North Anatolian fault, southern Marmara Sea, Turkey

Vardar, Denizhan; Öztürk, Kurultay; Yaltırak, Cenk; Alpar, Bedri; Tur, Hüseyin

doi:10.1007/s11001-013-9210-8

Cited by 42 publications

(48 citation statements)

References 38 publications

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“…(A) The North Anatolian Shear Zone, East Anatolian Shear Zone, and Varto Fault Zone and other the active faults of Turkey and the surrounding region (compiled fromEmre et al, 2013; Hessami et al, 2003;Philip et al, 1989;Vardar et al, 2014; Yaltırak et al, 2012). (B) Map showing the Eastern Turkish High Plateau (ETHP -the white shaded region) and its active structures(Emre et al, 2013; Hessami, 2003;Philip et al, 1989;Şengör et al, 2008).…”

mentioning

confidence: 99%

Distributed transpressive continental deformation: The Varto Fault Zone, eastern Turkey

et al. 2015

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mentioning

confidence: 99%

Distributed transpressive continental deformation: The Varto Fault Zone, eastern Turkey

et al. 2015

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“…Several studies have found that the Sea of Marmara reached a low water level of approximately −105 m during the last glacial period (Aksu et al, 1999;Çağatay et al, 2003;Eriş, Ryan, Çağatay, & Sancar, 2007;Hiscott et al, 2007;McHugh et al, 2008). At that time, the shelf areas, including the study area, was subaerially exposed beyond the shelf break and small lakes were present in Gemlik and Bandırma Bays (Vardar et al, 2014). Chirp data indicate that Erdek Bay was partially a lake and that some parts were sub-aerially exposed.…”

Section: Regional Setting and Tectonic Framework Of The Study Areamentioning

confidence: 85%

“…It extends westward along Lake İznik (Öztürk, Yaltırak, & Alpar, 2009), Gemlik Bay (Yaltırak & Alpar, 2002) and the southern coast of Bandırma Bay. Its orientation changes to south-westward in the eastern part of Erdek Bay (Vardar et al, 2014). According to Kavukçu (1990), the central branch enters the Sea of Marmara in Gemlik Bay and then continues on land to the north of Mudanya ( Figure 1).…”

Section: Regional Setting and Tectonic Framework Of The Study Areamentioning

confidence: 98%

“…Adatepe, Demirel, & Alpar, 2002;Aksu, Calon, Hiscott, & Yaşar, 2000;Aksu, Hiscott, & Yaşar, 1999;Alpar & Çizmeci, 1999;Barka & Kadinsky-Cade, 1988;Barka & Kuşçu, 1996;Gasperini, Polonia, Çağatay, Bortoluzzi, & Ferrante, 2011;Kurtuluş & Canbay, 2007;Kuşçu et al, 2009;Le Pichon, İmren, Rangin, Şengör, & Siyako, 2014;Vardar, Öztürk, Yaltırak, Alpar, & Tur, 2014;Yaltirak et al, 2002). It extends westward along Lake İznik (Öztürk, Yaltırak, & Alpar, 2009), Gemlik Bay (Yaltırak & Alpar, 2002) and the southern coast of Bandırma Bay.…”

Section: Regional Setting and Tectonic Framework Of The Study Areamentioning

confidence: 99%

“…The sub-basins of Bandırma (−51 m) and Gemlik (−110 m) Bays are the most distinctive basins (Vardar et al, 2014). The study area covers three sub-basins (Figure 1(c)), Erdek, Bandırma and Gemlik Bays.…”

Section: Regional Setting and Tectonic Framework Of The Study Areamentioning

confidence: 99%

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Control of active faults and sea level changes on the distribution of shallow gas accumulations and gas-related seismic structures along the central branch of the North Anatolian Fault, southern Marmara shelf, Turkey

Okay

Aydemir

2016

Geodinamica Acta

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Detailed reviews of multichannel seismic reflection, sparker, chirp and multibeam data that were collected on the southern Marmara Sea shelf revealed various shallow gas indicators and related sedimentary structures, including enhanced reflections, seismic chimneys, acoustic blanking, bright spots, pockmarks, mound-like features and seeps. Seismic attribute analyses were applied to characterise the existence of gas-bearing sediments. The distribution of shallow gas indicators provides important insights into their origin and the geological factors that control them. Prominent gas accumulations and seeps are observed along the profiles that cross the branches of the central segment of the North Anatolian Fault Zone, which indicates that the gas seeps are controlled by active faulting. This indicates that the faults act as conduits through the sedimentary column. The dense occurrences of gas directly off the river mouths along the shallow bays provide clues about the organic-rich carbon content of the sediments and biogenic methane generation. In some areas, the gas-related acoustic anomalies are mostly located in the upper sediments below the marine unit, which indicates that the gas emissions in these areas were terminated as a result of the increased overburden pressure after the Holocene sea level rise and the deposition of the marine unit.

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Spatial slip behavior of large strike‐slip fault belts: Implications for the Holocene slip rates of the eastern termination of the North Anatolian Fault, Turkey

et al. 2015

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We present new data on Holocene slip rates for the eastern end of the North Anatolian Fault (NAF) by using the optically stimulated luminescence ages of the offset terrace deposits at two sites, where a total of four displaced landforms was studied. Each offset feature was analyzed independently, and three different assumptions were made for all the offsets, depending on whether the age of the upper tread (upper tread reconstruction), the lower tread (lower tread reconstruction), or all bounding surfaces (intermediate solution) were used in dating of the terrace risers. The deflected geometry of the risers strongly suggests the use of either the intermediate solution or the upper tread reconstruction. The joint slip rate distributions for the upper tread reconstructions and the intermediate solutions were modeled as 13.0 + 1.8 / −1.4 and 14.3 + 5.8 / −2.4 mm/yr (2σ), respectively. Although the intermediate solution covers the full range of ages for the measured displacements, the curved geometry of the terrace risers suggests that the initiations of the riser offsets are most probably close to the abandonment ages of the upper terrace treads. Therefore, we accepted the joint slip rate of the intermediate solution but suggested that the average rate for the main displacement zone of the eastern NAF should be close to its lower limits. This slower rate with respect to previous estimates suggests that the total deformation is not only accommodated on the main displacement zone but is also distributed along the secondary faults to the south of the easternmost segments of the NAF.

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Late Pleistocene–Holocene evolution of the southern Marmara shelf and sub-basins: middle strand of the North Anatolian fault, southern Marmara Sea, Turkey

Cited by 42 publications

References 38 publications

Distributed transpressive continental deformation: The Varto Fault Zone, eastern Turkey

Distributed transpressive continental deformation: The Varto Fault Zone, eastern Turkey

Control of active faults and sea level changes on the distribution of shallow gas accumulations and gas-related seismic structures along the central branch of the North Anatolian Fault, southern Marmara shelf, Turkey

Spatial slip behavior of large strike‐slip fault belts: Implications for the Holocene slip rates of the eastern termination of the North Anatolian Fault, Turkey

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