The Messinian Salinity Crisis in the Dardanelles region: Chronostratigraphic constraints

Melinte‐Dobrinescu, Mihaela Carmen; Suc, Jean‐Pierre; Clauzon, Georges; Popescu, Speranta‐Maria; Armijo, Rolando; Meyer, Bertrand; Bi̇lteki̇n, Demet; Çağatay, M. Namık; Uçarkuş, Gülsen; Jouannic, Gwénaël; Fauquette, Séverine; Çakır, Ziyadin

doi:10.1016/j.palaeo.2009.04.009

Cited by 42 publications

(67 citation statements)

References 46 publications

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“…Their topmost part is marked by an abandonment surface. Such paleogeographical entities have been identified on this basis and dated by calcareous nannofossils in the Dardanelles by Melinte-Dobrinescu et al [2009] and Suc et al [2015].…”

Section: Well-documented Large-scale Evidencementioning

confidence: 92%

“…15 in [Melinte-Dobrinescu et al, 2009]) and of a valley incised in the folded strata of the Kirazlı Formation (late Miocene age) and parallel the present-day Dardanelles Strait (Çanakkale Strait) (Fig. 5a).…”

Section: The Main Gelibolu Peninsula Fold Systemmentioning

confidence: 99%

“…The sections sampled in the Kirazlı Formation that deposited prior to the MES (sections 2, 4, 5, 6b and 15; Fig. 7) have Triquetrorhabdulus rugosus among other calcareous nannofossils but lack systematically in Ceratolithus acutus (see Melinte-Dobrinescu et al, 2009 for …”

Section: Impact Of the Msc In The Dardanelles: Stratigraphic And Tectmentioning

confidence: 99%

“…This section, hence spans from Paper accepted for publication in Tectonics -April 2018 -# Figure 7. Chrono-biostratigraphy of the late Miocene -early Pliocene calcareous nannoplankton and inferred ages for studied sections in the Çanakkale region (Melinte-Dobrinescu et al, 2009). Chronology and calcareous nannoplankton biostratigraphy refer to Berggren et al (1995), Raffi et al (2006) and Anthonissen et al (2012).…”

Section: Details) This Implies a Latest Tortonian To Early Messinianmentioning

confidence: 99%

“…According to the same hypothesis, increasing subsequent slip on the NAF has right-laterally offset the late Miocene fold system, by about 70km. Here we focus on better characterizing the link between the NAF and the structures on both sides of it, combining three approaches: (1) we analyze accurately the geology and morphology of Mount Ganos and Gelibolu Peninsula using a high-resolution digital elevation model (DEM with 30 m resolution), satellite imagery and field observations allowing us to build detailed maps and cross sections across the structures clarifying the relationships between sedimentary units; (2) we revise the stratigraphy of sedimentary units by research of calcareous nannofossils, characterized by disappearance and appearance of several species during the time-interval 7-4 Ma (middle Miocene -early Pliocene) encompassing the Messinian Salinity Crisis (MSC;5.97-5.46 Ma;[CIESM, 2008;Manzi et al, 2013;Bache et al, 2012]) which left clear evidence of its impact in the Dardanelles [Melinte-Dobrinescu et al 2009]. That evidence allows us to determine the timing of compressional deformation; (3) we propose a composite cross section reconstructing the possible geometry of the folded structures on both sides of the NAF prior to their right-lateral offset.…”

Section: Introductionmentioning

confidence: 99%

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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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Section: Well-documented Large-scale Evidencementioning

confidence: 92%

Section: The Main Gelibolu Peninsula Fold Systemmentioning

confidence: 99%

Section: Impact Of the Msc In The Dardanelles: Stratigraphic And Tectmentioning

confidence: 99%

Section: Details) This Implies a Latest Tortonian To Early Messinianmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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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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The North Cycladic Detachment System and associated mineralization, Mykonos, Greece: Insights on the evolution of the Aegean domain

et al. 2013

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In the Aegean back‐arc domain, some 30–35 Ma ago, an increase of the rate of slab retreat led to the initiation of post‐orogenic extension, largely accommodated by large‐scale structures such as the North Cycladic Detachment System (NCDS). Although this extension is still active nowadays, an E–W compressional regime developed in the Late Miocene with the propagation of the North Anatolian Fault. On Mykonos island (Cyclades), the NE–SW back‐arc extension is particularly well expressed with the Livada and Mykonos detachments that belong to the NCDS and that are associated with NW–SE barite veins emplaced during the synkinematic cooling of the Mykonos intrusion. This study shows that the formation of the mineralization occurred when the pluton crossed the ductile‐to‐brittle transition during its exhumation below the NCDS at ~11–10 Ma. In addition, the kinematics of mineralized structures evolved with time: (1) most of the displacement was accommodated by the top‐to‐the‐NE Livada and Mykonos detachments accompanied by the formation of mineralized normal faults that were (2) reworked in a strike‐slip regime with an E–W direction of shortening and a persistent NE–SW stretching and (3) a late post‐mineralization E–W compressional stage with a minor reworking of shallow‐dipping faults (locally including the detachments themselves). We interpret this increase of the E–W shortening component recorded during the mineral deposition as a consequence of the initiation of the westward motion of Anatolia from 10 Ma, thus 4 Ma before the propagation of the North Anatolian Fault in the Dardanelles Strait and the localization of the strain on the Aegean Sea margins.

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Miocene Deposits

Shaltami¹,

Fares²,

Errishi³

et al. 2020

Isotope Geochronology of the Exposed Rocks in the Cyrenaica Basin, NE Libya

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The Messinian Salinity Crisis in the Dardanelles region: Chronostratigraphic constraints

Cited by 42 publications

References 46 publications

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

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

The North Cycladic Detachment System and associated mineralization, Mykonos, Greece: Insights on the evolution of the Aegean domain

Miocene Deposits

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