Cengiz Zabcı

Cengiz Zabcı
Istanbul Technical University ·  Department of Geological Engineering

PhD

About

171
Publications
56,308
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
536
Citations
Additional affiliations
December 2005 - present
Istanbul Technical University
Position
  • Researcher
Education
September 2005 - January 2013
Istanbul Technical University
Field of study
  • Solid Earth Sciences
September 2003 - June 2005
Istanbul Technical University
Field of study
  • Solid Earth Sciences
September 1999 - June 2003
Istanbul Technical University
Field of study
  • Geology

Publications

Publications (171)
Conference Paper
Full-text available
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...
Preprint
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...
Article
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...
Conference Paper
Full-text available
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...
Article
Full-text available
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...
Article
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...
Conference Paper
Full-text available
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...
Article
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...
Conference Paper
Full-text available
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...
Chapter
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...
Article
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...
Conference Paper
Full-text available
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...
Conference Paper
Full-text available
Tectonic and paleoseismological analysis of active deformation along the Milas Fault (Muğla, SW Turkey): Earthquake history and seismicity.
Conference Paper
Full-text available
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...
Article
Full-text available
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...
Conference Paper
Full-text available
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...
Conference Paper
Full-text available
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...
Conference Paper
Full-text available
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...
Article
Full-text available
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...
Conference Paper
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...
Chapter
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...
Article
Full-text available
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...
Chapter
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...
Article
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...
Article
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...
Conference Paper
Full-text available
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...
Conference Paper
Full-text available
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...
Article
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...
Article
Full-text available
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...
Conference Paper
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...
Article
Full-text available
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...
Conference Paper
Full-text available
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...
Conference Paper
Full-text available
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...
Conference Paper
Full-text available
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...
Conference Paper
Full-text available
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...
Conference Paper
Full-text available
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...
Conference Paper
Full-text available
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...
Conference Paper
Full-text available
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...
Conference Paper
Full-text available
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...
Article
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...
Article
Full-text available
Many of the terraces around the Lake Van record a relatively short period of the much longer geological history of the Lake Van Basin. Their deposition took place during the last ca. 125 ka BP. They accumulated in a large array of shallow lake and lake margin environments, such as alluvial fan/braided river, beach, Gilbert-type delta, nearshore lak...
Article
Full-text available
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...
Article
Full-text available
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...
Research
Full-text available
An important Errata for a withdrawn paper titled Paleoseismic History of the North Anatolian Fault
Article
The convergence between the Eurasian and Arabian plates has created a complicated structural setting in the Eastern Turkish high plateau (ETHP), particularly around the Karliova Triple Junction (KTJ) where the Eurasian, Arabian, and Anatolian plates intersect. This region of interest includes the junction of the North Anatolian Shear Zone (NASZ) an...
Conference Paper
Full-text available
The precise geological mapping is one of the most important issues in geological studies. Documenting the spatial distribution of geological bodies and their contacts play a crucial role on interpreting the tectonic evolution of any region. Although the traditional field techniques are still accepted to be the most fundamental tools in construction...
Conference Paper
Full-text available
The precise geological mapping is one of the most important issues in geological studies. Documenting the spatial distribution of geological bodies and their contacts play a crucial role on interpreting the tectonic evolution of any region. Although the traditional field techniques are still accepted to be the most fundamental tools in construction...
Working Paper
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...
Conference Paper
Full-text available
The tectonic evolution of the eastern Mediterranean is mainly defined by the interaction between three major plates, Eurasia, Africa, Arabia and the smaller Anatolian 'scholle'. The Anatolia is being extruded westward along two major tectonic structures, the North Anatolian (NASZ) and the East Anatolian (EASZ) shear zones, respectively forming its...