Sedimentary record of mid-Miocene seismotectonic activity in the Sinop Peninsula, north-central Turkey

Ilgar, Ayhan

doi:10.3906/yer-1303-5

Cited by 5 publications

(3 citation statements)

References 66 publications

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“…Simplified late Jurassic to Quaternary stratigraphy for the northern and southern slope of the Sinop range (with the thickness of each formation in parenthesis; Derman & İztan, ; Görür & Tüysüz, ; Hippolyte et al, , ; Ilgar, ; Janbu et al, ; Leren et al, ; Okay et al, , , ; Tüysüz et al, ). Major regional and local tectonomagmatic, metamorphic, and geodynamic events are reported with a thin black line (from: 1, Okay et al, ; 2, Aygül et al, ; 3, Meijers et al, ; 4, Aygül & Oberhansli, ; 5, Okay et al, ; 6, Kaymakçı et al, ; 7 Van Hinsbergen et al, ; 8, Özcan et al, ; 9, Dinçer, ; 10, Topuz et al, ; 11, Göçmengil et al, ; 12, Lefebvre et al, ; 13, Gürer et al, ; 14, Boztuğ & Jonckheere, ; 15, Okay et al, ; 16, Şengör et al, ), while the timing and magnitude of cooling obtained in this study is shown with a thicker black line.…”

Section: Resultsmentioning

confidence: 99%

Multiple Exhumation Phases in the Central Pontides (N Turkey): New Temporal Constraints on Major Geodynamic Changes Associated With the Closure of the Neo‐Tethys Ocean

et al. 2018

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The Central Pontides of N Turkey represents a mobile orogenic belt of the southern Eurasian margin that experienced several phases of exhumation associated with the consumption of different branches of the Neo-Tethys Ocean and the amalgamation of continental domains. Our new low-temperature thermochronology data help to constrain the timing of these episodes, providing new insights into associated geodynamic processes. In particular, our data suggest that exhumation occurred at (1)~110 to 90 Ma, most likely during tectonic accretion and exhumation of metamorphic rocks from the subduction zone; (2) from~60 to 40 Ma, during the collision of the Kirşehir and Anatolide-Tauride microcontinental domains with the Eurasian margin; (3) from~40 to 25 Ma, either during the early stages of the Arabia-Eurasia collision (soft collision) when the Arabian passive margin reached the trench, implying 70 to 530 km of subduction of the Arabian passive margin, or during a phase of trench advance predating hard collision at 20 Ma; and (4)~11 Ma to the present, during transpression associated with the westward motion of Anatolia. Our findings document the punctuated nature of fault-related exhumation, with episodes of fast cooling followed by periods of slow cooling or subsidence, the role of inverted normal faults in controlling the Paleogene exhumation pattern, and of the North Anatolian Fault in dictating the most recent pattern of exhumation.

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Section: Resultsmentioning

confidence: 99%

Multiple Exhumation Phases in the Central Pontides (N Turkey): New Temporal Constraints on Major Geodynamic Changes Associated With the Closure of the Neo‐Tethys Ocean

et al. 2018

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“…3, 10) occurred during an eustatic fall and was apparently caused by a major pulseof basin subsidence, probably due to a partial collapse of the Black Seapassive margin (Görür, 1988;Nikishin et al, 2003). evidence of coeval intra-basinal reverse faulting (Ilgar, 2014) indicate uplift due to tectonic contraction (see also Yıldırım et al, 2011). As discussed by Barka (1992), theLate Miocene full-scale onset of the North Anatolian Fault System (Fig.…”

Section: Accepted Manuscriptmentioning

confidence: 91%

“…The resulting synclinal basin initially hosted a neritic marine environment, but underwent rapid shallowing as the subsidence ceased by the end of Early Miocene, while high sediment supply from the orogen continued. Littoral sedimentation prevailed in the Middle Miocene, when the abandoned foredeep trough became affected by the onset of strike-slip neotectonics in the region (Barka and Hancock, 1984;Şengör et al, 1985;Yıldırım et al, 2011;Ilgar, 2014). The post-orogenic regional isostatic uplift and the Mediterranean salinity crisis emerged the basin in the Late Miocene.…”

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confidence: 97%