Department of Geological Engineering, Article

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Recent Submissions

Assessment of damage zone thickness and wall convergence for tunnels excavated in strain-softening rock masses Satici, Ozguer; Topal, Tamer (2021-02-01) There are two fundamental issues in all underground excavations, which are safety and economy. To ensure safety and expedite excavations, level of tunnel wall convergences and damage zone thickness should be predicted befo...
Assessment of performance of horizontal drains in an open pit mine in eastern Turkey Argunhan Atalay, Çidem; Yazıcıgil, Hasan; EKMEKÇİ, MEHMET (2021-02-01) © 2021, The Author(s), under exclusive licence to Springer-Verlag GmbH, DE part of Springer Nature.Prediction of spatial distribution of pore-water pressure and its control are the main issues in open pit mines, since exce...
Geochemistry and U-Pb ages from the Kosdag Metavolcanics in the southern Central Pontides (Turkey): Complementary data for early Late Cretaceous island arc development in the Northern Neotethys BERBER, Faruk; Sayıt, Kaan; Göncüoğlu, Mehmet Cemal (2021-01-01) The Kosdag Metavolcanics (KMs) in the southern Central Pontides are exposed between the Izmir-Ankara-Erzincan Suture Belt in the south and the Sakarya Composite Terrane in the north. They comprise an approximately 40-km-lo...
Fault-based probabilistic seismic hazard assessment of the eastern Makran subduction and the Chaman transform fault, Pakistan: Emphasis on the source characterization of megathrust Shah, Syed Tanvir; Özacar, Atilla Arda; Gülerce, Zeynep (Elsevier BV, 2021-01-01) Seismic source characterization (SSC) for probabilistic seismic hazard assessment (PSHA) in regions characterized by subduction megathrust involves a considerable ambiguity. Lack of detailed geologic, seismic, and geodetic...
Micropalaeontology, biostratigraphy, and depositional setting of the mid-Cretaceous Derdere Formation at Derik, Mardin, south-eastern Turkey Simmons, Michael D.; Vicedo, Vicent; Yılmaz, İsmail Ömer; Hosgor, Izzet; Mulayim, Oguz; SARI, BİLAL (2020-11-01) The micropalaeontology of the mid-Cretaceous Derdere Formation (Mardin Group) from outcrops close to the town of Derik in south-eastern Turkey is described here. In thin sections from the carbonates that form the majority ...
The evaluation of public awareness and community preparedness parameter in GIS-based spatial tsunami human vulnerability assessment (MeTHuVA) Tüfekçi Enginar, Duygu; Süzen, Mehmet Lütfi; Yalçıner, Ahmet Cevdet (Springer Science and Business Media LLC, 2020-11-01) Catastrophic tsunami events in the past decades reveal the need to improve disaster risk reduction management systems. Although the actions born with this need began in the countries affected by the recent major events, ma...
Tectonic geomorphology and Plio-Quaternary structural evolution of the Tuzgolu fault zone, Turkey: Implications for deformation in the interior of the Central Anatolian Plateau Krystopowicz, Neil J.; Schoenbohm, Lindsay M.; Rimando, Jeremy; Brocard, Gilles; Rojay, Fuat Bora (Geological Society of America, 2020-10-01) Situated within the interior of the Central Anatolian Plateau (Turkey), the 200-km-long Tuzgolu extensional fault zone offers first-order constraints on the timing and pattern of regional deformation and uplift. In this st...
Controls on carbonate platform architecture and reef recovery across the Palaeozoic to Mesozoic transition: A high-resolution analysis of the Great Bank of Guizhou Kelley, Brian M.; Lehrmann, Daniel J.; Yu, Meiyi; Jost, Adam B.; Meyer, Katja M.; Lau, Kimberly; Altıner, Demir; Li, Xiaowei; Minzoni, Marcello; Schaal, Ellen K.; Payne, Jonathan L. (Wiley, 2020-10-01) Carbonate platforms spanning intervals of global change provide an opportunity to identify causal links between the evolution of marine environment and depositional architecture. This study investigates the controls on pla...
Melanges through time: Life cycle of the world's largest Archean melange compared with Mesozoic and Paleozoic subduction-accretion-collision melanges Kusky, Timothy; Wang, Junpeng; Wang, Lu; Huang, Bo; Ning, Wenbin; Fu, Dong; Peng, Hongtao; Deng, Hao; Polat, Ali; Zhong, Yating; Shi, Guanzhong (Elsevier BV, 2020-10-01) Melanges represent a significant component of collisional and accretionary orogenic belts. We present a comparison of subduction-accretion melanges of different ages to test how melange-forming processes at convergent marg...
Carnian (Upper Triassic) Lavas and Tuffites from the Mersin Melange: Evidence for Intraoceanic Arc Rifting in the Northern Neotethys Sayıt, Kaan; Bedi, Yavuz; TEKİN, UĞUR KAĞAN; Okuyucu, Cengiz (University of Chicago Press, 2020-09-01) In Anatolia, the northern branch of Neotethys is represented by Izmir-Ankara-Erzincan (IAE) Ocean, whose fragments and associated continental entities are preserved in the IAE Suture. However, the traces of this northerly ...
Cretaceous Evolution of the Central Asian Proto-Paratethys Sea: Tectonic, Eustatic, and Climatic Controls Kaya, Mustafa Yücel; Dupont-Nivet, Guillaume; Proust, Jean-Noël; Roperch, Pierrick; Meijer, Niels; Frieling, Joost; Fioroni, Chiara; Altıner, Sevinç; Stoica, Marius; Aminov, Jovid; Mamtimin, Mehmut; Guo, Zhaojie (American Geophysical Union (AGU), 2020-09-01) The timing and mechanisms of the Cretaceous sea incursions into Central Asia are still poorly constrained. We provide a new chronostratigraphic framework based on biostratigraphy and magnetostratigraphy together with detai...
Rockfall Hazard Assessment Around Ankara Citadel (Turkey) Using Rockfall Analyses and Hazard Rating System San, Nyein Ei; Topal, Tamer; AKIN, MÜGE (Springer Science and Business Media LLC, 2020-08-01) Ankara Citadel which is one of the important cultural heritages in Turkey settles in the oldest part of Ankara. Rockfall event has occurred around the Citadel located on a steep hill where andesite is exposed. The rockfall...
Key-block based analytical stability method for discontinuous rock slope subjected to toppling failure Azarafza, M.; Akgün, Haluk; Ghazifard, A.; Asghari-Kaljahi, E. (Elsevier BV, 2020-08-01) This study introduces a simplified semi-distinct element algorithm for discontinuous rock slopes under toppling instability assessment based on block theory. The presented algorithm is developed to investigate block, flexu...
Reservoir heterogeneity of Ordovician sandstone reservoir (Bedinan Formation, SE Turkey): Diagenetic and sedimentological approachs Yildiz, Gokay; Yılmaz, İsmail Ömer (Elsevier BV, 2020-08-01) The sandstone-bearing reservoir levels (Bedinan Formation) in the Diyarbakir Basin, SE Turkey show strong heterogeneity in porosity, permeability and capillary pressure, which influences oil production rates of the studied...
Timing of depositional regime changes during the Late Cretaceous evolution of the Southern Pontides (Ankara, Central Anatolia, Turkey) Sariaslan, Nisan; Altıner, Sevinç; Altıner, Demir (Elsevier BV, 2020-08-01) During the Cretaceous, vast amounts of marine sediments were deposited along the south-facing active margin of the Eurasia. A stratigraphic section of 91 m was analyzed for planktonic foraminifera (75 samples), with the ai...
Application of fuzzy expert decision-making system for rock slope block-toppling modeling and assessment: a case study Azarafza, Mohammad; Asghari-Kaljahi, Ebrahim; Ghazifard, Akbar; Akgün, Haluk (2020-07-01) The strategy applied in this study is fuzzy logic based decision-making system to achieve a rapid way to assess block-toppling failure instability in discontinuous rock slopes as justified by kinematic analysis that are ap...
Displacement monitoring, displacement verification and stability assessment of the critical sections of the Konak tunnel, Izmir, Turkey Yertutanol, Kadir; Akgün, Haluk; Sopaci, Evrim (Elsevier BV, 2020-07-01) The main focus of this study is vertical displacement monitoring and verification along with preliminary support design for the four geotechnical sectors of the twin tube Konak tunnel that was constructed in a highly popul...
A Cenomanian-Santonian rudist-bearing carbonate platform on the northern Arabian Plate, Turkey: facies and sequence stratigraphy Mulayim, Oguz; Yılmaz, İsmail Ömer; Ozer, Sacit; SARI, BİLAL; TASLI, Kemal (Elsevier BV, 2020-06-01) Recent studies have shown that Cenomanian-Santonian carbonate sedimentary rocks rich in rudists are widespread throughout southeastern Turkey. The Derdere and Karababa formations have been analysed in the Sabunsuyu section...
Paleomagnetism of the Miocene Soma basin and its structural implications on the central sector of a crustal-scale transfer zone in western Anatolia (Turkey) Westerweel, Jan; UZEL, BORA; Langereis, Cornelis G.; Kaymakcı, Nuretdin; SÖZBİLİR, HASAN (Elsevier BV, 2020-05-15) The Izmir-Balikesir Transfer Zone (IBTZ) is a crustal-scale major tectonic feature in western Anatolia accommodating differential extension between the Menderes (MCC) and Cycladic (CCC) core complexes. The kinematics and e...
A 3800 yr paleoseismic record (Lake Hazar sediments, eastern Turkey): Implications for the East Anatolian Fault seismic cycle Hubert-Ferrari, Aurelia; Lamair, Laura; Hage, Sophie; Schmidt, Sabine; Cagatay, M. Namik; Avşar, Ulaş (Elsevier BV, 2020-05-15) The East Anatolian Fault (EAF) in Turkey is a major active left-lateral strike-slip fault that was seismically active during the 19th century but mostly quiet during the 20th century. Geodetic data suggests that the fault ...