Department of Geological Engineering, Article

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Altıner, Demir (74)
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Topal, Tamer (62)
Akgün, Haluk (60)
Kaymakcı, Nuretdin (59)

Geology (96)
Turkey (62)
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Recent Submissions

A new durability assessment method of the tuffs used in some historical buildings of Cappadocia (Turkey)
Deniz, B. Ertas; Topal, Tamer (2021-04-01)
Cappadocia region in Turkey is known as a touristic and historical area with volcanic rocks formed by the effect of intense Neogene calcalkaline volcanism. Rhyolitic to trachyandesitic tuffs, being widespread as a volcanic...
Assessment of the effectiveness of a rockfall ditch through 3-D probabilistic rockfall simulations and automated image processing
Rockfall ditches or catchment areas aim to collect falling blocks at the toe of a source zone by dissipating the energy of blocks in an excavated trench. The effectiveness of a rockfall ditch is simply expressed by its blo...
First record of late Campanian paieoceanographic and paieociimatic changes, Arabian platform, Mazidag-Mardin area, SE Turkey
Yılmaz, İsmail Ömer; Hosgor, Izzet; Altıner, Sevinç; Wagreich, Michael; Kvacek, Jiri (2021-03-01)
The sedimentology, geochemistry and paleontology of the pelagic upper Campanian Maastrichtian Bozova Formation in the "Mazidag" (Mazidagi) - Mardin area, SE Turkey, reveal paleoceanographic and paleoecological changes for ...
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...
Age and mantle sources of Quaternary basalts associated with "leaky" transform faults of the migrating Anatolia-Arabia-Africa triple junction
Cosca, Michael A.; Reid, Mary; Delphi, Jonathan R.; KUŞCU, GONCA; Blichert-Toft, Janne; Premo, Wayne; Whitney, Donna L.; Teyssier, Christian; Rojay, Fuat Bora (2021-02-01)
The Anatolia (Eurasia), Arabia, and Africa tectonic plates intersect in southeast Turkey, near the Gulf of Iskenderun, forming a tectonically active and unstable triple junction (the A(3) triple junction). The plate bounda...
Implications of giant ooids for the carbonate chemistry of Early Triassic seawater
Li, Xiaowei; Trower, Elizabeth J.; Lehrmann, Daniel J.; Minzoni, Marcello; Kelley, Brian M.; Schaal, Ellen K.; Altıner, Demir; Yu, Meiyi; Payne, Jonathan L. (2021-02-01)
Lower Triassic limestones contain giant ooids (>2 mm) along with other precipitated carbonate textures more typical of Precambrian strata. These features appear to have resulted from changes in seawater chemistry associate...
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...
Altıner, Demir; Altıner, Sevinç; Atasoy, Serdar Görkem; Sahin, Nazif (2021-01-01)
The name Paynita is proposed for a new dagmaritin genus from the upper Changhsingian (Permian) carbonates of the Southern Biofacies Belt in Turkey. Paynita permotaurica differs from its ancestor Paradagmarita monodi by a h...
Evaluation of ecological changes in lake hazar (Elazig, Turkey) using diatom-based paleolimnological techniques
Maraslioglu, Faruk; Soylu, Elif Neyran; Avşar, Ulaş; Hubert-Ferrari, Aurelia (2020-12-01)
© 2020 Parlar Scientific Publications. All rights reserved.Sediment core samples (H002, H003, H005 and H006) recovered from the basin of Lake Hazar located in the South East Region of Turkey. Core sam¬ ples were collected ...
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...
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