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December 2005 - present
Education
September 2005 - January 2013
September 2003 - June 2005
September 1999 - June 2003
Publications
Publications (189)
new insights for considerations of basin evolution with help of sedimentary structures
The Cimmerian Continent is the narrow continental strip that rifted from the northeastern Gondwana-Land margin mostly during the Permian between the present-day Balkan regions and Indonesia and collided with the Laurasian margin sometime between the latest Triassic and the late Jurassic, in places possibly even in the earliest Cretaceous. In contra...
Continental reconstructions became a geological problem after the rise of continental drift. With plate tectonics, it became easy to make reconstructions once ocean-floor magnetic anomaly stripes became available. However, for times before the medial Jurassic, continental reconstructions must depend on palaeomagnetism, palaeoclimatology and palaeob...
The active tectonics of Anatolia is mostly characterized by its westward motion with respect to Eurasia between the Hellenic subduction in the west and Arabia-Eurasia continental collision in the east. Although most of the deformation is suggested to be confined along Anatolia?s boundary elements, viz. the North and East Anatolian shear zones, rece...
The multidisciplinary studies yield a more complicated picture on seismic cycles, especially with the increasing evidence on creeping, slow slip events, tremors and repeating earthquakes. Recent observations support triggering of large earthquakes even by small or slow earthquakes and creeping of different portions of the fault. The Palu-Hazar Lake...
Collecting proofs on sediment deformations for how basin developing ,
soft sediment deformations and dwell on new possibilities so as not to be narrow-minded.
Analogue experiment for soft surface deformations that best models the compression, slide and shear functions in nature. Because the material agglomeration does not consist of linear or parti...
It has long been conjectured that creeping sections of strike slip faults arrest or subdue earthquake rupture, partly because of their reduced slip potential and partly because of their velocity-strengthening frictional properties. However, no instrumentally recorded large earthquake (Mw ≥ 6.8) on any well instrumented continental strike-slip fault...
The Milas Fault (MF) is a poorly understood active fault located between the Büyük Menderes graben to the north and the Gökova graben to the south within the Anatolian–Aegean Region, SW Türkiye. This dextral strike-slip fault has a length of 55 km between Bafa Lake in the northwest and Çamlıca village in the southeast, with a general strike of N60°...
Türkiye’nin en önemli iki doğrultu atımlı fay sisteminden birisi olan Doğu Anadolu Fayı (DAF), Karlıova (Bingöl) ve Türkoğlu (Kahramanmaraş) arasında uzanan yaklaşık 580 km uzunluğunda KD-GB uzanımlı sol yanal bir faydır ve fayın Gölbaşı (Adıyaman) ve Türkoğlu (Kahramanmaraş) arasında uzanan yaklaşık 95 km’lik bölümü Pazarcık Segmenti olarak adland...
Kıt’alar, okyanus levhalarının aksine toplam yamulmanın geniş alanlarda ve çok sayıda tektonik yapı arasında paylaşıldığı deformasyon zonlarına sahiptir. Hindistan-Avrasya çarpışmasına bağlı olarak yaklaşık 3000 km genişliğinde bir deformasyon alanının oluştuğu Asya Kıt’ası, buna en iyi örneklerden biridir. Güneyde himalayalar’dan kuzeyde Baykal Gö...
Doğuda Karlıova (Bingöl) ve batıda Yunanistan ana karası arasında yaklaşık 1600 km uzunluğa sahip Kuzey Anadolu Makaslama Zonu (KAMZ), genelde doğudan batıya doğru genişleyen bir deformasyon alanı boyunca uzanır. Buna paralel olarak, KAMZ’nin ana makaslamasını oluşturan Kuzey Anadolu Fayı (KAF), doğuda genel olarak dar bir zon boyunca tek bir kol h...
Doğu Anadolu Fayı (DAF) ve Kuzey Anadolu Fayı (KAF) gibi aktif fayları barındıran ülkemiz, deprem etkinliği açısından dünyanın en faal bölgelerinden biridir. Anadolu’nun batıya doğru hareketini sağlayan en önemli iki yapıdan biri olan DAF, kuzeydoğuda Karlıova (Bingöl) ile güneybatıda Türkoğlu (Kahramanmaraş) arasında 480 km boyunca uzanan sol yana...
Continental transform faults are generally known to have widely distributed structures and sparse seismicity, in opposite to their oceanic counterparts. The North Anatolian Shear Zone (NASZ) is an ideal example, where the total deformation is shared between multiple structures especially during its evolutionary stages. The North Anatolian Fault (NA...
The Milas Fault (MF) is a poorly known active fault located between the Büyük Menderes Graben to the north and the Gökova Graben to the south within the Anatolia-Aegean Region, SW Turkey. This dextral strike-slip fault has a length of 55 km between the Bafa Lake in the northwest and Çamlıca village in the southeast with a general strike of N60°W as...
A major new Neoproterozoic orogenic system belonging to the larger Pan-African deformational realm, the Saharides, is described in North Africa, which formed from about 900 to 500 Ma ago. The Saharides, a Turkic-type orogenic complex similar to the Altaids of central and northwestern Asia, involved major subduction-accretion complexes occupying alm...
Multi-spectral satellite imagery becomes a powerful tool in analyses of the earth’s surface in various aspects, including tectonic studies. There are many worldwide samples of such studies, documenting the distribution of faulting or deformation of lithological units especially in arid, semi-arid regions. The East Anatolian Shear Zone and its most...
The Ovacık Fault (OF) is one of the internal structures of the Anatolian Block, located close to its eastern boundary. Although it shows a very clear surface trace, there are no instrumentally recorded surface rupturing earthquakes on this fault. This study concludes results of the first palaeoseismological trench study on the OF with the evidence...
A hitherto unknown Neoproterozoic orogenic system, the Saharides,
is described in North Africa. It formed during the 900–500-Ma
interval. The Saharides involved large subduction accretion complexes
occupying almost the entire Arabian Shield and much of
Egypt and parts of the small Precambrian inliers in the Sahara including
the Ahaggar mountains. T...
Malatya Fayı (MF), Orta Anadolu ‘ova’ Bölgesi’nin en doğu kesimlerinde yaklaşık K20°D doğrultusuna sahip ve 140 km uzunluğunda sol yanal doğrultu atımlı bir tektonik yapıdır. Beş farklı geometrik segmentten oluşan MF, bölgedeki diğer yapılar ile etkileşimi ve geometrisi yüzünden farklı deformasyon özelliklerine sahiptir. Bu tektonik yapının yer yüz...
Jeoloji haritalarının yapımında, özellikle erişimi zor sahalar için son yıllarda çok bantlı uydu görüntülerinin kullanımı yaygınlık kazanmıştır. Teknolojinin ilerlemesine paralel olarak bu tarz görüntü alan uyduların sayısının yanı sıra, kaydettikleri görüntü kalitesinde de belirgin bir artış olmuştur. Bu çalışma, farklı uzay ajansları tarafından y...
The study area (40-40.45°N and 30-32.15° E) exhibits a high topography (1200-1800 m elevation) and bounded by the Galatean Massif at east, Pontide Mountain Range to the north, the Central Anatolian Plateau to the south and the Marmara Sea to the west. The region is actively been deformed and dissected by the active branches of the dextral strike sl...
Controversy remains over when present-day configuration of the Anatolia boundary faults came into existence, and the issue of what are the driving forces of the Anatolian westward motion. The NW-striking dextral and NE-striking sinistral second-order strike-slip faults at the eastern part of the Anatolian Scholle play a crucial role within these lo...
NW Anatolia to the east of the Marmara Sea compromise the western part of the Pontide Mountain Range and bounded by the North Anatolian Fault Zone to the north and Central Anatolian Plateau to the south. The region is drained by the Sakarya River where the river's
main course and its tributaries respond to the tectonic uplift, climate changes and t...
The study area, which has been tectonically active since geological times, is still evolving tectonically. The basement metamorphism starts with Dereköy Metamorphics of Triassic age and continues with a turbitidic trangressive sequence of clay, silt, sand and gravels in Eocene. It has also been discovered that the region called Kaytazdere Formation...
The continental lithosphere is not generated or destroyed in the same manner as the oceanic lithosphere. It is this difference that makes continental transform faults substantially different in behavior from their oceanic counterparts. The kinematic rules of plate tectonics commonly do not apply to them, because at their ends lithosphere is rarely...
The slip history of the North Anatolian Fault (NAF) is constrained by displacement and age data for the last 550 ka. First, I classified all available geological estimates as members of three groups: Model I for the eastern, Model II for the central, and Model III for the western segments where the North Anatolian Shear Zone gradually widens from e...
In the eastern Marmara Region, the North Anatolian Fault (NAF) bifurcates into multiple branches, where the total strain is distributed among parallel/sub-parallel fault strands. The Almacık Block diverts two of these structures, of which the northern one was ruptured during 12 November 1999 Düzce (Mw 7.1) and the southern ones created 26 May 1957...
Tectonic and paleoseismological analysis of active deformation along the Milas Fault (Muğla, SW Turkey): Earthquake history and seismicity.
Convergence between Arabian, African, and Eurasian plates lead to westward escape of the Anatolian microplate. The extension in western Anatolia is mostly characterized by E-W trending horst-graben systems, which are formed within a N-S extensional system. Moreover, the NE-SW and NW-SE trending fault systems are the other important neotectonic feat...
This paper presents an inventory of the relevant information to delineate the Tethyside sutures and the continental blocks they stitch in Turkey and to summarise their history. A palinspastic palaeogeographic/palaeotectonic interpretation is reserved for the second part of this paper and in a third paper we hope to deal with its neotectonic episode...
Estimating slip rates of active faults is critical not only for assessing of seismic potential of these structures but also for understanding their geodynamics. The North Anatolian Fault (NAF) forms the boundary between Anatolia and Eurasia with the total slip rate of 24.6±0.2 mm/yr, deduced by GPS-based elastic block modelling. However, the quanti...
The western Anatolia is seismically one of the most active places on the earth. Here, the active deformation is mainly characterized by E-W trending grabens and horsts, which occupies a space of about 300 km-width. To the SW of this extensional system, the total strain is distributed between E-W striking the Gökova Fault, and the accompanying NW-st...
When ¸Sengör proposed the existence of the Cimmerian Continent exactly forty years ago, he presented it as an ensialic arc ripped from the northeastern margin of Gondwana-Land above a southwest-dipping subduction zone. This tearing, he believed, was the cause of the opening of the Neo-Tethys. In subsequent years he and his co-workers elaborated on...
The sinistral Malatya-Ovacık Fault Zone (MOFZ) is one of the outstanding intraplate deformation belts within Anatolia. The 165-km-long, NE–SW-striking Malatya Fault (MF), which constitutes the southern section of the MOFZ, is separated into five segments according to its surface geometry. These segments have evident morphotectonic features that ref...
Turkey is seismically one of the most active regions of the world. The interaction of three major plates, Eurasia, Arabia and Africa, generates different neotectonic provinces in this region. The SW Anatolia, as part of the western extensional province, is mostly defined by E–W striking normal and NW–SE striking strike-slip and normal faults. We st...
The North Anatolian Shear Zone (NASZ) and its most prominent member, the North Anatolian Fault (NAF), initiated some 11 million years ago, together form the northern boundary of the westerly extruding Anatolian Scholle. The NAF has had a remarkable seismic activity between 1939 and 1999 in which the westward migrating earthquake sequence created su...
The Sakarya River is among the largest fluvial systems of the southern
Black Sea basin, draining most of NW Anatolia. The river crosses the
high relief of the Pontide mountain range through successive narrow
gorges and strike-slip basins formed by the North Anatolian Fault (NAF)
System. We have investigated this fluvial record along the course of t...
Continental transform faults commonly do not obey the kinematic rules of plate tectonics, because at their ends lithosphere is rarely created or destroyed. Earthquakes along them reach depths of some 20 km maximum, except in rare shortening segments, where deeper hypocenters have been detected. They are rarely confined to simple faults, but form br...
The intersection of the Eurasian and Arabian plates and the smaller Anatolian Scholle created the Karlıova Triple Junction (KTJ) in eastern Turkey. In this study, we present analogue model experiments for this region and compare the results with our field observations and data from remote sensing imagery. Our comparison suggests that the sense of s...
Although the westward extrusion of the Anatolian Block is mainly compensated along its boundary faults, the North Anatolian and the East Anatolian shear zones, it is internally deformed in a dominant manner by some strike-slip faults as well. To obtain a better understanding about this intraplate deformation of the Anatolian Block, we investigate t...
The 23 October 2011 Mw 7.1 Van earthquake in eastern Turkey took place on a previously unknown thrust fault, causing over 600 fatalities and extensive damage mainly in Van city and the northern town of Erciş. Several coseismic models have already been published after the earthquake using the available seismological and geodetic data. These studies...
The Malatya-Ovacık Fault Zone (MOFZ) is about 270 km-long sinistral strike-slip tectonic structure within the Anatolian Scholle. This zone has a key role in evaluating the initiation and style of the deformation within the Anatolian Scholle. Although the MOFZ is claimed to be an inactive structure since 3 Ma or 4 Ma in some previous studies, recent...
Quantifying the vertical slip rate of the active faults have importance to understand the morphotectonic evolution of a region under control of external and internal forces of the nature, and have implications for determining earthquake hazard. We studied the terrace staircases formed along the Sakarya River, NW Turkey by means of mapping, high res...
The Sapanca-Akyazı segment (SAS) is located on western part of the North Anatolian Fault (NAF) of Turkey. It was ruptured together with four other segments during the 17th August 1999 İzmit earthquake (Mw = 7.4) which caused ~145-km-long surface rupture in the east Marmara region. We conducted geomorphological investigations and 2D–3D paleoseismic...
After the Hercynian collision in Europe, the activity of the Protogonos arc ceased, but it continued its activity farther east, east of present-day Bulgaria. In Turkey, during the Permian, the entire area of the country was affected by extensional tectonics leading to the generation of supra-subduction zone ensimatic arcs, pre-arc-spreading ophioli...
The North Anatolian Fault showed a remarkable seismic activity especially between 1939 and 1999, when the westward migrating earthquake sequence created surface ruptures more than 1000 km, leaving unbroken only the Marmara segments, to the west, and the Yedisu Segment, to the east along the main strand of the fault. To understand the palaeoseismici...
Sakarya River stands among the largest fluvial systems of the southern Black Sea basin, draining ~60000 km2 of NW Anatolia, crossing the high relief of the Pontide mountain range through successive narrow gorges and strike-slip basins formed by the North Anatolian Fault (NAF) System.
We investigated the fluvial terraces along the course of the main...
Doğu Akdeniz’in karmaşık tektonik birlikteliği içerisinde, Anadolu’nın batı yönlü hareketi temel olarak kuzey sınırını oluşturan Kuzey Anadolu Fay Zonu ve doğu sınırını oluşturan Doğu Anadolu Fay Zonu boyunca gerçekleşir. Ana deformasyonun bu iki makaslama zonu üzerinde yoğunlaşmasına rağmen, çok sayıda doğrultu atımlı ve/veya oblik fay Anadolu ‘le...
Doğu Akdeniz’in karmaşık tektonik kurgusu içerisinde, Anadolu “levhasının” batı yönlü hareketi, bu blok vari kütlenin kuzey ve doğu sınırlarını oluşturan Kuzey ve Doğu Anadolu makaslama zonları boyunca gerçekleşir. Buna ek olarak Anadolu’nun iç kısımlarında gözlenen KD doğrultulu sol yanal ve KB doğrultulu sağ yanal doğrultu atımlı faylar ‘orta’
An...
GNSS observations on the western part of the North Anatolian Fault Zone (NAFZ) have been carrying out since the beginning of 1990s. August 17, 1999, Izmit earthquake (Mw= 7.4) excited more scientific attention on this area. Bogazici University Kandilli Observatory and Earthquake Research Institute (KOERI), Geodesy Department has been continually co...
The Anatolian ‘plate’ is being extruded westward relative to the Eurasia along two major tectonic structures, the
North Anatolian and the East Anatolian shear zones, respectively making its northern and eastern boundaries.
Although the main deformation is localized along these two structures, there is remarkable intra-plate deformation within Anato...
The complex tectonic architecture of the eastern Mediterranean is mainly shaped by the interaction between the Eurasian, African, Arabian plates and smaller Anatolian Scholle. Ongoing post-collisional convergence between Eurasian and Arabian plates causes; (1) the westward motion of the Anatolia and and (2) the formation of four neo-tectonic provin...
The Malatya-Ovacık Fault Zone (MOFZ is about 240 km-long sinistral strike-slip tectonic structure within the Anatolian Scholle. Although the MOFZ is claimed to be an inactive structure since 3 Ma (Westaway and Arger, 2001), recent GPS measurements, morphotectonic studies and micro seismicity strongly suggest considerable amount of strain accumulati...
The North Anatolian Fault (NAF), one of the major continental strike-slip faults of the World, extends for about 1500 km between the Karlıova triple junction to the east and the North Aegean Trough to the west. This tectonic structure showed a remarkable seismic activity between 1939 and 1999, when the westward migrating earthquake sequence created...
We present new data on Holocene slip rates for the eastern end of the North Anatolian Fault (NAF) by using the optically stimulated luminescence ages of the offset terrace deposits at two sites, where a total of four displaced landforms was studied. Each offset feature was analyzed independently, and three different assumptions were made for all th...
Van Gölü çevresindeki taraçaların
pek çoğu, Van Gölü Havzası’nın çok daha uzun dönem- li jeolojik geçmişine
nazaran daha kısa bir dönemi yansıtır. Bunların depolanması, günü-müzden önceki
son 125 bin yıl sırasında gerçekleşmiştir. Bu çökeller alüvyal yelpaze/ör- gülü
akarsu, kumsal, Gilbert-tipi delta, kıyıyakını ve kıyıötesi gibi geniş bir
yelpaze...
Van Gölü çevresindeki taraçaların pek çoğu, Van Gölü Havzası’nın çok daha uzun dönemli jeolojik geçmişine nazaran daha kısa bir dönemi yansıtır. Bunların depolanması, günümüzden önceki son 125 bin yıl sırasında gerçekleşmiştir. Bu çökeller alüvyal yelpaze/örgülü akarsu, kumsal, Gilbert-tipi delta, kıyıyakını ve kıyıötesi gibi geniş bir yelpazede ye...
The two sides of the Strandja Sill show a highly discontinuous stratigraphic succession since the Late
Oligocene. This area, together with the Sea of Marmara Basin, is usually proposed as the gateway for the
Paratethyan freshwaters and organisms that constituted the Lago Mare facies in the Mediterranean Sea
during the Messinian Salinity Crisis (MSC...
