scholarly journals A missing-link in the tectonic configuration of the Almacık Block along the North Anatolian Fault Zone (NW Turkey): Active faulting in the Bolu plain based on seismic reflection studies

2015 ◽  
Vol 201 (3) ◽  
pp. 1814-1833 ◽  
Author(s):  
Gürol Seyitoğlu ◽  
Berkan Ecevitoğlu ◽  
Bülent Kaypak ◽  
Korhan Esat ◽  
Ayşe Çağlayan ◽  
...  
Keyword(s):  
Fault Zone ◽  
Seismic Reflection ◽  
North Anatolian Fault ◽  
North Anatolian Fault Zone ◽  
Active Faulting ◽  
Missing Link ◽  
The North ◽  
Nw Turkey

scholarly journals Late Miocene transcurrent tectonics in NW Turkey: evidence from palaeomagnetism and 40Ar–39Ar dating of alkaline volcanic rocks

2007 ◽  
Vol 144 (2) ◽  
pp. 379-392 ◽  
Author(s):  
N. KAYMAKCI ◽  
E. ALDANMAZ ◽  
C. LANGEREIS ◽  
T. L. SPELL ◽  
O. F. GURER ◽  
...  
Keyword(s):  
Fault Zone ◽  
Late Miocene ◽  
Active Faults ◽  
Volcanic Rocks ◽  
Volcanic Eruptions ◽  
North Anatolian Fault ◽  
Lava Flows ◽  
North Anatolian Fault Zone ◽  
The North ◽  
Nw Turkey

A number of intra-continental alkaline volcanic sequences in NW Turkey were emplaced along localized extensional gaps within dextral strike-slip fault zones prior to the initiation of the North Anatolian Fault Zone. This study presents new palaeomagnetic and 40Ar–39Ar geochronological results from the lava flows of NW Turkey as a contribution towards understanding the Neogene–Quaternary tectonic evolution of the region and possible roles of block rotations in the kinematic history of the region. 40Ar–39Ar analyses of basalt groundmass indicate that the major volume of alkaline lavas of NW Turkey spans about 4 million years of episodic volcanic activity. Palaeomagnetic results reveal clockwise rotations as high as 73° in Thrace and 33° anticlockwise rotations in the Biga Peninsula. Movement of some of the faults delimiting the areas of lava flows and the timing of volcanic eruptions are both older than the initiation age of the North Anatolian Fault Zone, implying that the region experienced transcurrent tectonics during Late Miocene to Pliocene times and that some of the presently active faults in the region are reactivated pre-existing structures.

Strain Partitioning Between the Izmir-Balikesir Transfer Zone and the North Anatolian Fault Zone, NW Turkey

2020 ◽  
Author(s):  
Levent Tosun ◽  
Elif Çakır ◽  
Bora Uzel ◽  
Ökmen Sümer ◽  
Atilla Arda Özacar ◽  
...  
Keyword(s):  
Fault Zone ◽  
Strike Slip ◽  
North Anatolian Fault ◽  
Western Anatolia ◽  
Deformation Pattern ◽  
Strain Partitioning ◽  
North Anatolian Fault Zone ◽  
The North ◽  
Nw Turkey ◽  
Transfer Zone

<p>The present tectonic framework of the Western Anatolia has been dominated by two major deformations. The first one is the product of the slab-edge processes related to the convergence between Eurasian and African plates along with the Aegean-Cyprean subduction system since the Oligocene, and the second one is the westwards escape of Anatolian Block along the North Anatolian Fault Zone (NAFZ) since the late Miocene. The first one resulted in a widespread extensional deformation in the Western Anatolia and the Aegean region and is associated with slab-detachment and slab-tear processes that gave rise to the development of dynamic topography and various core-complexes (e.g., Cyclades and Menderes). Recent studies have shown that the deferential extensional strain between the core complexes in the region has been accommodated by strike-slip dominated transfer zones, the İzmir-Balıkesir Transfer Zone (İBTZ), which developed (sub)parallel to the extension direction and accommodate differential extension and rotational deformation in the region. The second one gave way to the development of a complex strike-slip deformation pattern and an array of pull-apart basin complexes throughout the northern margin of the Anatolian Block. The NAFZ and İBTZ interact around the Balıkesir-Bursa region resulting in a very peculiar deformation style due to partitioning of strain between these major structures.<br>This study aims at unraveling how the strain partitioning operates between İBTZ and NAFZ and to reveal the kinematic constraints that produced the present tectonic scheme in the region. The geometry and kinematics of the faults are determined by analyzing 2773 fault slip data obtained from 49 sites evenly distributed throughout the study area. The preliminary results show that the İzmir-Balıkesir Transfer Zone localized after Miocene with the decoupling of strike-slip faults, and to the episodic exhumation of the metamorphic core complexes. The focal mechanism solutions of the recent earthquakes support this decoupling and manifest the seismic activity of the İBTZ. This study is supported by a Tübitak Project, Grant Number of 117R011.</p>

Quaternary evolution of the Gulf of İzmit (NW Turkey): a sedimentary basin under control of the North Anatolian Fault Zone

2007 ◽  
Vol 27 (6) ◽  
pp. 355-381 ◽  
Author(s):  
Erdal Dolu ◽  
Erkan Gökaşan ◽  
Engin Meriç ◽  
Mustafa Ergin ◽  
Tolga Görüm ◽  
...  
Keyword(s):  
Fault Zone ◽  
Sedimentary Basin ◽  
North Anatolian Fault ◽  
North Anatolian Fault Zone ◽  
The North ◽  
Nw Turkey

scholarly journals Electrical characterization of the North Anatolian Fault Zone underneath the Marmara Sea, Turkey by ocean bottom magnetotellurics

2013 ◽  
Vol 193 (2) ◽  
pp. 664-677 ◽  
Author(s):  
T. Kaya ◽  
T. Kasaya ◽  
S. B. Tank ◽  
Y. Ogawa ◽  
M. K. Tuncer ◽  
...  
Keyword(s):  
Fault Zone ◽  
Electrical Characterization ◽  
North Anatolian Fault ◽  
Marmara Sea ◽  
Ocean Bottom ◽  
North Anatolian Fault Zone ◽  
The North

Crustal seismic attenuation parameters in the western region of the North Anatolian Fault Zone

2020 ◽  
Vol 134 ◽  
pp. 101694 ◽  
Author(s):  
Gizem Izgi ◽  
Tuna Eken ◽  
Peter Gaebler ◽  
Tom Eulenfeld ◽  
Tuncay Taymaz
Keyword(s):  
Fault Zone ◽  
Seismic Attenuation ◽  
North Anatolian Fault ◽  
Western Region ◽  
North Anatolian Fault Zone ◽  
The North ◽  
The Western Region
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