The active Main Marmara Fault

Pichon, Xavier Le; Şengör, A. M. Celâl; Demirbağ, Emin; Rangin, Claude; İmren, Caner; Armijo, Rolando; Görür, Nací; Çağatay, N.; Lépinay, Bernard Mercier de; Meyer, Bertrand; Saatçılar, R.; Tok, Buğser

doi:10.1016/s0012-821x(01)00449-6

Cited by 355 publications

(392 citation statements)

References 36 publications

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“…The segmentation provided relies on the discussion of several portions of the Main Marmara Fault, given in Le Pichon [9], based on bathymetric, sparker and deep-towed seismic reflection data and interprets it in terms of fault segments identifiable for different structural, tectonic and geometrical features. The remaining segments of the model (e.g.…”

Section: Introductionmentioning

confidence: 99%

Earthquake hazard in Marmara Region, Turkey

Erdik

Demircioğlu

Şeşetyan

et al. 2004

Soil Dynamics and Earthquake Engineering

171

112

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Section: Introductionmentioning

confidence: 99%

Earthquake hazard in Marmara Region, Turkey

Erdik

Demircioğlu

Şeşetyan

et al. 2004

Soil Dynamics and Earthquake Engineering

171

112

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“…There is also a debate on whether the entire Marmara Zone might rupture as a single through-going strike-slip event, or in several en-echelon normal and oblique faulting events. In the latter case, there might be smaller impacts from the ground motion, but a higher potential for tsunami generation owing to ocean floor elevation changes [9][10][11] .…”

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confidence: 99%

An earthquake gap south of Istanbul

et al. 2013

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“…This suggests that distributed deformation took place within a ~30 km-wide zone, above the NNAF fault extremity prior to its propagation all the way to the surface. The nature and offset of the deformed structures, their relation with the NAF and the timing of the onset of the fault in the Dardanelles have been questioned by various studies [Yaltırak et al, 2000;Okay et al, 2000 andLe Pichon et al, 2001;Rangin et al, 2004;Zattin et al, 2005Okay et al, 2010. We address these questions with new observations and age constraints for the Dardanelles fold system.…”

Section: Geological Settingmentioning

confidence: 88%

Crustal Strain in the Marmara Pull‐Apart Region Associated With the Propagation Process of the North Anatolian Fault

et al. 2018

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Key Points:• Structural map and geological cross-section of the Ganos-Gelibolu fold system in the Dardanelles region.• Timing, amount of shortening associated to the propagation of the North Anatolian Fault deduced from mapping and critical revision of the stratigraphy.• Reconstruction of the westward propagation of the NAF in the Dardanelles region. AbstractPropagation processes of plate-scale faults through continental lithosphere are poorly documented. The North Anatolian fault (NAF) is a continental right-lateral transform with striking evidence for propagation processes in the Marmara Sea pull-apart region. Earlier work [Armijo et al., 1999] suggests that in the Dardanelles, where the principal, northern branch of that fault (NNAF) enters into the Aegean: (1) a fold-thrust system has progressively developed above the NNAF fault tip, at the WSW corner of the Marmara Sea pull-apart. The main anticline formed there was sheared and its SW half laterally offset by ~70 km to the SW; (2) the timing of structure development appears correlated with sea-level changes associated with the Messinian Salinity Crisis (MSC). Our new description of the Dardanelles (or Ganos-Gelibolu) fold-thrust system is based on structural mapping, field observations and calcareous nannoplankton analyses to date key sedimentary units. Our results provide tight constraints on the main pulse of folding associated with propagation of the tip of the NNAF: it took place in the late Miocene to earliest Pliocene (5.60 to 5.04 Ma), before deposition of undeformed Pliocene marine sediments. The folding is mostly coeval with the MSC and accommodated several kilometers of shortening at the fault tip. After full propagation of the NNAF up to the surface, the folded structure was sheared and right-laterally offset, with an average 14 mm/yr of slip-rate during the past ~5 Myrs. A reconstruction of tectonic evolution suggests a flower structure nucleating and taking root at the tip of the fault.

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The active Main Marmara Fault

Cited by 355 publications

References 36 publications

Earthquake hazard in Marmara Region, Turkey

Earthquake hazard in Marmara Region, Turkey

An earthquake gap south of Istanbul

Crustal Strain in the Marmara Pull‐Apart Region Associated With the Propagation Process of the North Anatolian Fault

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