Offshore/onshore correlation of the North-Anatolian fault deformations in the Western Sea of Marmara

Vardar, Denizhan; Alp, Hakan; Demirel, Sinan; Vardar, Hande Aykurt; Alpar, Bedri

doi:10.1007/s11069-021-04664-2

Cited by 6 publications

(2 citation statements)

References 59 publications

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“…Recent geological evolution derived from field geological and geophysical studies is completed through analysis of the active tectonic deformation provided by geodetic data [ 5 ]. Moreover, in coastal areas, the seaward continuity of tectonic structures offers a stage to integrate complementary—offshore and onshore—geological observations [ 6 ].…”

Section: Introductionmentioning

confidence: 99%

The Campo de Dalias GNSS Network Unveils the Interaction between Roll-Back and Indentation Tectonics in the Gibraltar Arc

Galindo-Zaldı́var

Gil

Tendero-Salmerón

et al. 2022

Sensors

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The Gibraltar Arc includes the Betic and Rif Cordilleras surrounding the Alboran Sea; it is formed at the northwest–southeast Eurasia–Nubia convergent plate boundary in the westernmost Mediterranean. Since 2006, the Campo de Dalias GNSS network has monitored active tectonic deformation of the most seismically active area on the north coast of the Alboran Sea. Our results show that the residual deformation rates with respect to Eurasia range from 1.7 to 3.0 mm/year; roughly homogenous west-southwestward displacements of the northern sites occur, while the southern sites evidence irregular displacements towards the west and northwest. This deformation pattern supports simultaneous east-northeast–west-southwest extension, accommodated by normal and oblique faults, and north-northwest–south-southeast shortening that develops east-northeast–west-southwest folds. Moreover, the GNSS results point to dextral creep of the main northwest–southeast Balanegra Fault. These GNNS results thus reveal, for the first time, present-day interaction of the roll-back tectonics of the Rif–Gibraltar–Betic slab in the western part of the Gibraltar Arc with the indentation tectonics affecting the eastern and southern areas, providing new insights for improving tectonic models of arcuate orogens.

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Section: Introductionmentioning

confidence: 99%

The Campo de Dalias GNSS Network Unveils the Interaction between Roll-Back and Indentation Tectonics in the Gibraltar Arc

Galindo-Zaldı́var

Gil

Tendero-Salmerón

et al. 2022

Sensors

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“…The differences in depth between the terraces compared to the other levels in the northern shelf of the Sea of Marmara can be explained by the relative amount of uplift [e.g. Bulkan et al, 2020, Vardar et al, 2021 under the influence of the GF. The sigmoidal-shaped inner reflections of Unit U1b between Tekirdağ and Kumbağ is progradational, the ascending trajectories of rollover points can be correlated with sea level rise during clinothem development, and delta front is at 43 ms (TWT) bsl.…”

Section: Seismic Stratigraphy Of the North-western Sea Of Marmara Shelfmentioning

confidence: 99%

Seismic stratigraphy of the north-western Sea of Marmara shelf along the North Anatolian Fault system

Vardar

Alp

Demirel³

et al. 2021

Annals of Geophysics

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The Ganos Fault, a part of the Northern strand of the North Anatolian Fault system, is an active- strike slip fault and divides the narrow NW shelf of the Sea of Marmara into two parts near the town of Gaziköy. This paper presents recently collected shallow high-resolution seismic data to discriminate the sedimentary successions, each characterized by distinctive stratigraphic patterns on both sides of the Ganos Fault. Two main units, namely U1 and U2, and three para-sequences (U1a, U1b and U1c) were identified, depending on their internal reflection patterns, accommodation depths as well as the presence of conformity and the unconformity surfaces. The thickness of Unit U1 reaches its maximum at the northern side of the Ganos Fault; it is much thinner to the south. The para-sequences of U1b and U1c have “progradation” and “aggradation to progradation” depositional characters, respectively. This probably implies fluvial deposition controlled by sea- level fluctuations. Unit U1b can only be observed at the northern side of the Ganos Fault, while Unit U1c at the southern side. Units U1a and U1b were deposited during the transgressive system tract, while Unit U1c was deposited during a sea-level fall and/or a lowstand phase marked by an erosional surface. The marine terraces in the study area are shallower than those along the northern shelf of the Sea of Marmara, possibly due to successive tectonic displacements along the Ganos Fault, which also controls the distribution and thickness of the parasequences identified in this study.

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Scenario-based tsunami hazard assessment for the northwestern coast of Marmara Sea

et al. 2023

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Offshore/onshore correlation of the North-Anatolian fault deformations in the Western Sea of Marmara

Cited by 6 publications

References 59 publications

The Campo de Dalias GNSS Network Unveils the Interaction between Roll-Back and Indentation Tectonics in the Gibraltar Arc

The Campo de Dalias GNSS Network Unveils the Interaction between Roll-Back and Indentation Tectonics in the Gibraltar Arc

Seismic stratigraphy of the north-western Sea of Marmara shelf along the North Anatolian Fault system

Scenario-based tsunami hazard assessment for the northwestern coast of Marmara Sea

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