TY  - JOUR
A1  - Yildirim, Cengiz
A1  - Schildgen, Taylor F.
A1  - Echtler, Helmut Peter
A1  - Melnick, Daniel
A1  - Bookhagen, Bodo
A1  - Ciner, T. Attila
A1  - Niedermann, Samuel
A1  - Merchel, Silke
A1  - Martschini, Martin
A1  - Steier, Peter
A1  - Strecker, Manfred
T1  - Tectonic implications of fluvial incision and pediment deformation at the northern margin of the Central Anatolian Plateau based on multiple cosmogenic nuclides
JF  - Tectonics
N2  - We document Quaternary fluvial incision driven by fault-controlled surface deformation in the inverted intermontane Gökirmak Basin in the Central Pontide mountains along the northern margin of the Central Anatolian Plateau. In-situ-produced Be-10, Ne-21, and Cl-36 concentrations from gravel-covered fluvial terraces and pediment surfaces along the trunk stream of the basin (the Gökirmak River) yield model exposure ages ranging from 71ka to 34645ka and average fluvial incision rates over the past similar to 350ka of 0.280.01mm a(-1). Similarities between river incision rates and coastal uplift rates at the Black Sea coast suggest that regional uplift is responsible for the river incision. Model exposure ages of deformed pediment surfaces along tributaries of the trunk stream range from 605ka to 110 +/- 10ka, demonstrating that the thrust faults responsible for pediment deformation were active after those times and were likely active earlier as well as explaining the topographic relief of the region. Together, our data demonstrate cumulative incision that is linked to active internal shortening and uplift of similar to 0.3mm a(-1) in the Central Pontide orogenic wedge, which may ultimately contribute to the lateral growth of the northern Anatolian Plateau.
KW  - Tectonic Geomorphology
KW  - Fluvial Incision
KW  - Surface Exposure Age
KW  - Uplift Rate
Y1  - 2013
U6  - https://doi.org/10.1002/tect.20066
SN  - 0278-7407
SN  - 1944-9194
VL  - 32
IS  - 5
SP  - 1107
EP  - 1120
PB  - American Geophysical Union
CY  - Washington
ER  - 
TY  - JOUR
A1  - Yildirim, Cengiz
A1  - Melnick, Daniel
A1  - Ballato, Paolo
A1  - Schildgen, Taylor F.
A1  - Echtler, Helmut Peter
A1  - Erginal, A. Evren
A1  - Kiyak, Nafiye Gunec
A1  - Strecker, Manfred
T1  - Differential uplift along the northern margin of the Central Anatolian Plateau - inferences from marine terraces
JF  - Quaternary science reviews : the international multidisciplinary research and review journal
N2  - Emerged marine terraces and paleoshorelines along plate margins are prominent geomorphic markers that can be used to quantify the rates and patterns of crustal deformation. The northern margin of the Central Anatolian Plateau has been interpreted as an actively deforming orogenic wedge between the North Anatolian Fault and the Black Sea. Here we use uplifted marine terraces across principal faults on the Sinop Peninsula at the central northern side of the Pontide orogenic wedge to unravel patterns of Quaternary faulting and orogenic wedge behavior. We leveled the present-day elevations of paleoshorelines and dated marine terrace deposits using optically stimulated luminescence (OSL) to determine coastal uplift. The elevations of the paleoshorelines vary between 4 +/- 0.2 and 67 +/- 1.4 m above sea level and OSL ages suggest terrace formation episodes during interglacial periods at ca 125, 190, 400 and 570 ka, corresponding to marine isotopic stages (MIS) 5e, 7a, 11 and 15. Mean apparent vertical displacement rates (without eustatic correction) deduced from these terraces range between 0.02 and 0.18 mm/a, with intermittent faster rates of up to 0.26 mm/a. We obtained higher rates at the eastern and southern parts of the peninsula, toward the hinterland, indicating non-uniform uplift across the different morphotectonic segments of the peninsula. Our data are consistent with active on- and offshore faulting across the Sinop Peninsula. When integrated with regional tectonic observations, the faulting pattern reflects shortening distributed over a broad region of the northern margin of the Central Anatolian Plateau during the Quaternary.
KW  - Orogenic Plateaus
KW  - Central Anatolian Plateau
KW  - Plateau margins
KW  - Central Pontides
KW  - Orogenic wedges
KW  - Black Sea
KW  - Marine terraces
KW  - Uplift rate
Y1  - 2013
U6  - https://doi.org/10.1016/j.quascirev.2013.09.011
SN  - 0277-3791
VL  - 81
IS  - 4
SP  - 12
EP  - 28
PB  - Elsevier
CY  - Oxford
ER  -