Yazar "RTEÜ, Mühendislik ve Mimarlık Fakültesi, Jeoloji Mühendisliği Bölümü" için Scopus İndeksli Yayınlar Koleksiyonu listeleme
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Adakite-like parental melt generation by partial fusion of juvenile lower crust, Sakarya Zone, NE Turkey: A far-field response to break-off of the southern Neotethyan oceanic lithosphere
Karslı, Orhan; Dokuz, Abdurrahman; Kandemir, Raif; Aydın, Faruk; Schmitt, Axel K.; Ersoy, E. Yalçın; Alyıldız, Cihangir (Elsevier Science Bv, 2019)The timing of major tectonic events and the driving mechanisms for magma generation during Late Cenozoic convergence and collision between Arabia and Eurasia still remain unknown. the Sakarya Zone (SZ) in northern Turkey ... -
Age constraints on intra-formational unconformities in Upper Jurassic-Lower Cretaceous carbonates in northeast Turkey; geodynamic and hydrocarbon implications
Vincent, Stephen J.; Guo, Li; Flecker, Rachel; BouDagher-Fadel, Marcelle K.; Ellam, Robert M.; Kandemir, Raif (Elsevier Ltd, 2018)Upper Jurassic-lowermost Cretaceous carbonate build-ups are imaged on seismic data in the Black Sea. They form important, untested, hydrocarbon reservoirs that are the focus of active exploration. Outcrop analogues to these ... -
Analysis of ionospheric TEC anomalies for global earthquakes during 2000-2019 with respect to earthquake magnitude (Mw >= 6.0)
Ulukavak, Mustafa; Yalçınkaya, Mualla; Kayıkçı, Emine Tanır; Öztürk, Serkan; Kandemir, Raif; Karslı, Hakan (Pergamon-Elsevier Science Ltd, 2020)In this work, a relationship between ionospheric TEC anomalies and different earthquake magnitude groups before the main shocks was investigated. For this purpose, 2942 global earthquakes with Mw >= 6 from 2000 to 2019 and ... -
The bio-lithoclastic carbonate facies analysis: Sahinkaya Member Maastrichtian (Late Cretaceous) skeletal carbonate deposit, Sakarya Zone, NE Turkey
Koroğlu, Fatih; Kandemir, Raif (Springer, 2019)The eastern Sakarya Zone is consensually known as a back-arc setting during the Late Cretaceous period. the region has records, which are in accordance with the environments unstable and carbonate sedimentation formed into ... -
Cenozoic temporal variation of crustal thickness in the Urumieh-Dokhtar and Alborz magmatic belts, Iran
Sepidbar, Fatemeh; Karslı, Orhan; Palin, Richard M.; Casetta, Federico (Elsevier, 2021)We present regional variations of whole-rock Sr/Y and (La/Yb)(N) ratios of magmatic rocks along the Cenozoic Urumieh-Dokhtar and Alborz magmatic belts, Iran. Both the magmatic belts are located at the north of the main ... -
A comprehensive evaluation of sedimentary zeolites from Turkey as pozzolanic addition of cement- and lime-based binders
Özen Karslı, Sevgi; Goncuoğlu, Mehmet Cemal; Liguori, Barbara; de Gennaro, Bruno; Cappelletti, Piergiulio; Gatta, G. Diego; Lucolano, Fabio; Colella, Carmine (Elsevier Sci Ltd, 2016)The pozzolanic action played by five natural zeolite-rich materials (three clinoptilolite- and one each mordenite- and analcime-bearing rocks) coming from Turkey, has been examined, evaluating also the influence of various ... -
Compressive strength and microstructural characteristics of natural zeolite-based geopolymer
Özen, Sevgi; Alam, Burhan (Budapest Univ Technology Economics, 2018)A detailed study of geopolymeric reaction products and mechanical properties of geopolymer pastes prepared with natural zeolite has been investigated by means of compressive strength, XRD and SEM/EDX analysis. Sodium ... -
Cordierite-bearing strongly peraluminous cebre rhyolite from the eastern Sakarya Zone, NE Turkey: Constraints on the variscan orogeny
Dokuz, Abdurrahman; Kulekçi, Elif; Aydınçakır, Emre; Kandemir, Raif; Alçiçek, M. Cihat; Pecha, Mark E.; Sünnetçi, Kadir (Elsevier, 2017)The Cebre Rhyolite with an outcropping area up to 12 km(2) is one of the rare extrusions in the Variscan basement of the Sakarya Zone. the unit consists of high-K calc alkaline rhyolites (SiO2 = 74-82 wt.%). Abundant ... -
Crustal evolution of NW Iran: Cadomian arcs, archean fragments and the cenozoic magmatic flare-up
Moghadam, Hadi Shafaii; Griffin, William L.; Li, Xian-Hua; Santos, Jose F.; Karslı, Orhan; Stern, Robert J.; Ghorbani, Ghasem; Gain, Sarah; Murphy, Rosanna; O'Reilly, Suzanne Y. (Oxford Univ Press, 2017)The Cadomian orogen of NW Iran includes a series of metamorphic rocks with zircon U-Pb ages between ca 562 and 505 Ma (Ediacaran to middle Cambrian). the Ediacaran-Cambrian basement is intruded by a series of Late Eocene-Late ... -
Deciphering the shoshonitic monzonites with I-type characteristic, the Sisdaĝi pluton, NE Turkey: Magmatic response to continental lithospheric thinning
Karslı, Orhan; Dokuz, Abdurrahman; Uysal, İbrahim; Ketenci, Murat; Chen, Bin; Kandemir, Raif (Elsevier, 2012)Large-scale late Mesozoic to early Cenozoic plutons in the Eastern Pontide orogenic belt mostly show calc-alkaline and I-type geochemical features. However, we identify the Sisda?i pluton that has shoshonitic affinity and ... -
Development and characterization of clinoptilolite-, mordenite-, and analcime-based geopolymers: A comparative study
Güngör, Didem; Özen Karslı, Sevgi (Elsevier, 2021)This study examines the development of geopolymers from clinoptilolite, mordenite, and anal-cime and compares the properties of the resulting green-binding materials. Sodium silicate and sodium hydroxide solutions were ... -
Early Cambrian S-type granites in the Sakarya Zone, NE Turkey: A record for transition from subduction to post-collisional extension deduced from U-Pb zircon age and Nd-Hf isotopes
Karslı, Orhan; Şengün, Fırat; Dokuz, Abdurrahman; Aydın, Faruk; Kandemir, Raif; Kristoffersen, Magnus; Santos, Jose Francisco; Hofmann, Mandy; Duygu, Levent (Elsevier, 2022)Cadomian realms have recently received much attention in the Alpine-Mediterranean orogenic belts, with discontinuous outcrops extending from the Alps to the Istanbul Zone, Menderes Massif, Taurides in Turkey and Iran as ... -
Early Cambrian S-type granites in the Sakarya Zone, NE Turkey: A record for transition from subduction to post-collisional extension deduced from U[sbnd]Pb zircon age and Nd[sbnd]Hf isotopes
Karslı, Orhan; Şengün, Fırat; Dokuz, Abdurrahman; Aydın, Faruk; Kandemir, Raif; Kristoffersen, Magnus; Santos, José Francisco; Hofmann, Mandy; Duygu, Levent (Elsevier, 2022)Cadomian realms have recently received much attention in the Alpine–Mediterranean orogenic belts, with discontinuous outcrops extending from the Alps to the İstanbul Zone, Menderes Massif, Taurides in Turkey and Iran as ... -
Effect of characteristics of natural zeolites on their geopolymerization
Özen Karslı, Sevgi; Uzal, Burak (Elsevier, 2021)The properties of clinoptilolite-based geopolymers are investigated with a focus on the parameters affecting the reactivity of clinoptilolite in a geopolymer binder. A complete characterization of raw materials was carried ... -
Effect of mineralogical composition of clinoptilolite-bearing tuffs on their performance as a natural pozzolan in cementitious systems
Özen Karslı, Sevgi; Uzal, Burak (Techno-Press, 2021)In this study, pozzolanic reactivity and strength activity of zeolitic tuffs containing similar amount of zeolitic phase (clinoptilolite) and different types and amounts of impurities were examined in order to understand ... -
Experimental and parametric studies on the effect of waste cooking oil methyl ester with diesel fuel in compression ignition engine
Rajak, Upendra; Subhaschandra Singh, Thokchom; Nath Verma, Tikendra; Kumar Chaurasiya, Prem; Shaik, Saboor; Afzal, Asif; Cüce, Erdem; Rajhi, Ali A.; Ahamed Saleel C. (Elsevier, 2022)Diesel engine discharge characteristics are primarily influenced by fuel qualities, combustion chamber type, and injection settings. This study used combinations of biodiesel, waste cooking oil, and diesel fuel to do a ... -
Fluid evolution of the Fe-Zn skarn deposits in the Çiftehan (Ulukışla-Niğde) area, south-central Turkey
Sunkari, Emmanuel Daanoba; Lermi, Abdurrahman; Demir, Yılmaz (Springer, 2023)This study investigated the compositional variations of fluid inclusions in the different stages of mineralization at the Esendemirtepe and Horoz Fe-Zn skarns, south-central Turkey. The skarn zones in the study area consist ... -
Fluid inclusion and stable isotope constraints (C, O, H) on the Dagbasi Fe-Cu-Zn skarn mineralization (Trabzon, NE Turkey)
Demir, Yılmaz; Dişli, Ali (Elsevier, 2020)The Dagbasi Fe-Cu-Zn skarn mineralization developed along the contact between the block and lens shaped limestones of the Lower Cretaceous Berdiga Formation and the Upper Cretaceous Dagbasi Granitoid. the exoskam-type ... -
Genesis and geodynamic significance of chromitites from the Orhaneli and Harmancik ophiolites (Bursa, NW Turkey) as evidenced by mineralogical and compositional data
Uysal, İbrahim; Akmaz, Recep Melih; Kapsiotis, Argyrios; Demir, Yılmaz; Saka, Samet; Avcı, Erdi; Mueller, Dirk (Elsevier, 2015)Chromitites from Orhaneli and Harmancik ophiolites (Bursa, NW Turkey) are mainly associated with dunites. They occur as banded and lenticular bodies showing massive and disseminated textures and are composed of magnesiochromite ... -
Geochemical fingerprints of Late Triassic calc-alkaline lamprophyres from the Eastern Pontides, NE Turkey: A key to understanding lamprophyre formation in a subduction-related environment
Karslı, Orhan; Dokuz, Abdurrahman; Kaliwoda, Melanie; Uysal, İbrahim; Aydın, Faruk; Kandemir, Raif; Fehr, Karl-Thomas (Elsevier Science Bv, 2014)The Eastern Pontides in NE Turkey is one of the major orogenic belts in Anatolia. in this paper, we report our new Ar-40/Ar-39 dating, mineral chemistry, major and trace elements and Sr-Nd-Pb isotopic analyses of the ...