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Recent Submissions

Delamination Magmatism in Eastern Anatolia: A Geochemical Perspective Aktağ, Alican; Sayıt, Kaan; Furman, Tanya; Peters, Bradley J. (2024-05-01) The Sr-Nd-Hf-Pb isotope geochemistry of the Late Miocene Tunceli Volcanics suggests that they are the products of mixed asthenospheric and lithospheric mantle melts. The combined elemental and mineral chemistry data additi...
A Novel VS30 Prediction Strategy Taking Fluid Saturation into Account and a New VS30 Model of Türkiye Okay, Hakan Bora; Özacar, Atilla Arda (2024-04-01) The averaged shear-wave velocity of the top 30 m (VS30) is widely used in earthquake engineering as a proxy to represent site responses. However, the spatial availability of measured VS30 is rather limited, and, so far, a ...
Classification and modification of slake durability test for different types of rocks Ersöz, Timur; Topal, Tamer (2024-04-01) Rocks exposed to atmospheric conditions are subjected to weathering processes driven by numerous factors especially precipitation. The slaking behavior attributed to water-induced weathering particularly affects rocks cont...
Latest Carboniferous–Early Permian Rifting of the Northern Gondwanan Margin and the Opening of the Northern Neotethys: New Evidence from the Carboniferous and Permian Foraminiferal Assemblages from the Beysehir-Hoyran Nappes, Central Taurides (Southern Turkey) Okuyucu, Cengiz; TEKİN, UĞUR KAĞAN; Guzgun, Cagri; Sayıt, Kaan (2024-04-01) The Beyşehir-Hoyran Nappes, one of the tectonostratigraphic units of the Taurides, are thought to be originated from the Izmir-Ankara Ocean (northern branch of Neotethys). In this study, Late Paleozoic rock units from the ...
Seismo-turbidites reveal locations of major earthquakes during the past millennium in the Gulf of Aqaba, southern Dead Sea Fault Bektaş, Zeynep; Avşar, Ulaş; Ribot, Matthieu; Klinger, Yann; Jónsson, Sigurjón (2024-03-01) Although ample historical and paleoseismological information is available on major past earthquakes along the onland part of the Dead Sea Fault, knowledge of the seismic behavior of its southernmost part in the Gulf of Aqa...
Evidence for Holocene Earthquakes along the Húsavík-Flatey Fault in North Iceland: Implications for the Seismic Behavior of Oceanic Transform Faults Matrau, Rémi; Klinger, Yann; Thorðarson, Thorvaldur; Guðmundsdóttir, Esther R.; Avşar, Ulaş; Parisi, Laura; Fittipaldi, Margherita; Jónsson, Sigurjón (2024-03-01) Understanding the long-term seismic behavior of oceanic transform faults is challenging because their location underwater generally prevents the use of classical paleoseismological techniques. The Húsavík-Flatey fault (HFF...
Development of the early Carnian deepening upward sequence of the Huglu Unit within the tectonic slices/blocks of the Mersin Mélange, southern Turkey: Biochronologies, geochemistry of volcaniclastics and palaeogeographic implications TEKİN, UĞUR KAĞAN; Krystyn, Leopold; Kürschner, Wolfram M.; Sayıt, Kaan; Okuyucu, Cengiz; Forel, Marie-Béatrice (2024-02-15) The Mersin Ophiolitic Complex in southern Turkey includes two different units; the Mersin Mélange (MM) and Mersin Ophiolite with a metamorphic sole. Within the MM the Tavuscayiri megablock exposes in the Kilin section the ...
Surface deformations of the 6 February 2023 earthquake sequence, eastern Türkiye Meng, Jiannan; Kusky, Timothy; Mooney, Walter D.; Bozkurt, Erdin; BODUR, MEHMET NURİ; Wang, Lu (2024-01-19) Two powerful earthquakes struck Türkiye on 6 February 2023. The initial rupture was on the Dead Sea fault zone, yet maximum displacements and energy release [moment magnitude (Mw) 7.8] occurred 24 seconds later when ruptur...
Partitioning Anatolian Kinematics into Tectonic Escape and Slab Rollback Dominated Domains Meng, Jiannan; Kusky, Timothy M.; Bozkurt, Erdin; Deng, Hao; Sinoplu, Ozan (2024-01-01) Anatolia is the global archetype of tectonic escape, as witnessed by the devastating 2023 Kahramanmaraş Earthquake sequence, and the 2020 Samos Earthquake, which show different kinematics related to the framework of the es...
Assessment of geoenvironmental problems at Hasankeyf Antique City (Türkiye) Topal, Tamer; Kaya, Y. (2024-01-01) The Hasankeyf Antique City contains several historical structures, ancient and new man-made caves. The dolomitic limestone exposed in the area is the main rock, but weak and not durable. The rock is deteriorated under envi...
Preliminary documentation of coseismic ground failure triggered by the February 6, 2023 Türkiye earthquake sequence Görüm, Tolga; Tanyas, Hakan; Karabacak, Furkan; Yılmaz, Abdüssamet; Girgin, Serkan; Allstadt, Kate E.; Süzen, Mehmet Lütfi; Burgi, Paula (2023-12-20) The devastating Kahramanmaraş earthquake sequence occurred on February 6, 2023. Two main events, Mw 7.8 and Mw 7.5 occurred 9 hours apart, affected 11 cities in Turkey, and subjected an area of ∼90,000 km2 to shaking level...
Paired Satellite and NWP Precipitation for Global Flood Forecasting Huang, Zhijun; Wu, Huan; Gu, Guojun; Li, Xiaomeng; Nanding, Nergui; Adler, Robert F.; Yılmaz, Koray Kamil; Alfieri, Lorenzo; Chen, Sirong (2023-12-01) Precipitation data are known to be the key driver of hydrological simulations. Hence, reliable quantitative precipitation estimates and forecasts are vital for accurate hydrological forecasting. Satellite-based precipitati...
New paleohydroclimate record of the MIS 5e/5d transition from Yelini Cave, central Anatolian region of Türkiye Gürbüz, Kaan; Mutlu, Halim; Ünal İmer, Ezgi; Uysal, I. Tonguç; Zhao, Jian-Xin (2023-12-01) Abstract This study presents the results of a detailed paleoclimate investigation on stalagmite YL-1 (Yelini Cave, Türkiye). YL-1 grew between 117.13 (+0.57/−0.44) ka and 114.87 (+1.63/−2.89) ka within Greenland Stadia...
On the nature of the Cimmerian Continent Şengör, Ali Mehmet Celal; Altıner, Demir; Zabcı, Cengiz; Sunal, Gürsel; Lom, Nalan; Aylan, Eşref; Öner, Tayfun (2023-12-01) 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 ...
Insights into the Tethyan mantle heterogeneity: Trace element evidence from the Karakaya Complex, Central Anatolia Sayıt, Kaan (2023-08-01) The Nilüfer Unit of the Karakaya Complex (northern Turkey) preserves the remnants of the voluminous Triassic Tethyan magmatism. In the Imrahor area (Ankara), the Nilüfer Unit is characterized by a megablock consisting of h...
A new quantitative welding degree classification for ignimbrites Akin, Mutluhan; Topal, Tamer; Dinçer, İsmail; AKIN, MÜGE; Özvan, Ali; Orhan, Ahmet; Orhan, Ayşe (2023-07-01) As a pyroclastic rock type, ignimbrites may reveal varying degrees of welding depending on the temperature (> 535 ℃) and overburden pressure conditions during its formation. The welding degree of ignimbrites increases as t...
Late Cretaceous arc magmatism in the Western Pontides (Turkey) - temporal and chemical changes Sağlam, Ezgi; Duzman, Turgut; Ay, Cemre; Okay, Aral; Topuz, Gültekin; Sunal, Gürsel; Özcan, Ercan; Altıner, Demir; Hakyemez, Aynur; Wang, Jia-Min; Kylander-Clark, Andrew R. C. (2023-06-01) During the Late Cretaceous, a magmatic arc extended from the Lesser Caucasus through the northern margin of the Pontides into Srednogorie, Timok, Banat, and Apuseni (ABTS) in the Balkans for a distance of 2700 km. We studi...
Breaking plates: Creation of the East Anatolian fault, the Anatolian plate, and a tectonic escape system Whitney, Donna L.; Delph, Jonathan R.; Thomson, Stuart N.; Beck, Susan L.; Brocard, Gilles Y.; Cosca, Michael A.; Darin, Michael H.; Kaymakcı, Nuretdin; Meijers, Maud J. M.; Okay, Aral; Rojay, Fuat Bora; Teyssier, Christian; Umhoefer, Paul J. (2023-05-01) Lateral movement of lithospheric fragments along strike-slip faults in response to colli-sion (escape tectonics) has characterized convergent settings since the onset of plate tectonics and is a mechanism for the formation...
The Destructive Earthquake Doublet of 6 February 2023 in South-Central Türkiye and Northwestern Syria: Initial Observations and Analyses Mai, Paul Martin; Aspiotis, Theodoros; Aquib, Tariq Anwar; Cano, Eduardo Valero; Castro‐Cruz, David; Espindola‐Carmona, Armando; Li, Bo; Li, Xing; Liu, Jihong; Matrau, Rémi; Nobile, Adriano; Palgunadi, Kadek Hendrawan; Ribot, Matthieu; Parisi, Laura; Suhendi, Cahli; Tang, Yuxiang; Yalcin, Bora; Avşar, Ulaş; Klinger, Yann; Jónsson, Sigurjón (2023-04-01) On 6 February 2023, two large earthquakes with magnitude 7.8 and 7.6 rocked south- central Türkiye and northwestern Syria. At the time of writing, the death toll exceeded 50,000 in Türkiye and 7200 in Syria. The epicenter ...
Middle Permian basic and acidic volcanism in the Istanbul zone (NW Turkey): evidence for post-variscan extensional magmatism Babaoglu, Cumhur; Topuz, Gültekin; Okay, Aral I.; Koksal, Serhat; Wang, Jia-Min; Toksoy Köksal, Fatma (2023-03-01) The Istanbul Zone (NW Turkey) forms the eastward extension of Avalonia and was subjected to deformation, uplift and erosion for a time period of 40-50 Ma following the collision with the Sakarya Zone during Early to Late C...

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