Kurum Yazarı "Kandemir, Raif" İçin 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 ... -
Anadolu’nun MIS 9 karasal karbonat kayıtları ve paleoiklimsel çıkarımlar: Örtülü/Sarıkavak (Afyon), Karahallı (Uşak) ve Bahçecik (Gümüşhane)
Tagliasacchi, Ezher; Kayseri Özer, Mine Sezgül; Kandemir, Raif (TMMOB Jeoloji Mühendisleri Odası, 2024)Denizel izotop fazlarından biri olan ve buzul arası döneme karşılık gelen MIS 9 dönemi, günümüzdeki sıcak dönem için bir analog olarak görülmektedir. Ancak karasal karbonat çökellerinden bu döneme ait veriler oldukça ... -
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 ... -
Comparative study of the marine terraces along the Bulgarian and Turkish Black Sea coasts for determination of the tectonic effect and environmental change
Kostov, Konstantin; Erturaç, Mehmet Korhan; Nakov, Radoslav; Kazancı, Nizamettin; Lazarova, Anna; Nikolov, Petar; Selçuk, Azad Sağlam; Celens, Meltem Kocal; Kandemir, Raif; Okur, Hilal (Bulgarian Acad Science, 2021)...... -
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 ... -
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 ... -
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 ... -
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 ... -
Geochemical modelling of early Eocene adakitic magmatism in the Eastern Pontides, NE Anatolia: continental crust or subducted oceanic slab origin?
Karslı, Orhan; Uysal, İbrahim; Dilek, Yıldırım; Aydın, Faruk; Kandemir, Raif (Taylor & Francis Inc, 2013)Early Eocene adakitic volcanic and granitoid rocks are widespread in the Eastern Pontides of NE Turkey, providing significant constraints for the early Cenozoic tectonomagmatic evolution of the region. These adakitic rock ... -
Geochemistry of the Lake Sediments on Robert Island, South Shetland Islands, Antarctica: implications for weathering processes in Polar areas
Özyurt, Merve; Demir, Yılmaz; Özkan, Korhan; Kandemir, Raif (TUBİTAK Scientific & Technical Research Council Turkey, 2023)The preliminary results of geochemical analyses of the surface sediments from 4 lakes on Robert Island, South Shetland, Antarctica, are presented herein. The samples were collected during the Turkish Antarctic Expedition ... -
Geochemistry of the massive dolomites in Eastern Black Sea region: REE implications for dolomite petrogenesis
Özyurt, Merve; Kırmacı, M. Ziya; Al-Aasm, Ihsan S.; Kandemir, Raif (Springer Link, 2023)Dolomitization is an important diagenetic process observed in carbonate rocks ranging in age from Precambrian to Holocene. The formation of massive dolostone bodies has long been a challenge due to complex sedimentary and ... -
Geochemistry of the Turonian-Coniacian strata: New insight into paleoenvironmental conditions of the Tethys, Eastern Pontides, NE Turkiye
Özyurt, Merve; Kanat, Ayhan; Yıldızoğlu, Selim (Elsevier, 2023)The eastern part of the Sakarya Zone, known as the Eastern Pontides, is represented by a south-facing carbonate platform during the Late Jurassic-Early Cretaceous. The shallow marine carbonate sedimentation is masked by ... -
Geochemistry, fluid inclusion and stable isotope constraints (C and O) of the Sivrikaya Fe-skarn mineralization (Rize, NE Turkey)
Demir, Yılmaz; Uysal, İbrahim; Kandemir, Raif; Jauss, Andrea (Elsevier Science Bv, 2017)The Sivrikaya Fe-skarn mineralization is hosted by dolomitic limestone layers of Late Cretaceous volcano-sedimentary unit, comprised of andesite, basalt and their pyroclastites, including, sandstone, shale and dolomitic ... -
Geochemistry, Re-Os isotopes and highly siderophile element abundances in the Eastern Pontide peridotites (NE Turkey): Multiple episodes of melt extraction-depletion, melt-rock interaction and fertilization of the Rheic Ocean mantle
Dokuz, Abdurrahman; Uysal,İbrahim; Dilek, Yıldırım; Karslı, Orhan; Meisel, Thomas; Kandemir, Raif (Elsevier, 2015)We report on the structure, geochemistry, Re-Os isotopes and relative abundances of highly siderophile elements (HSEs) of the Paleozoic peridotite-basalt occurrences in the Eastern Pontide belt of northeastern Turkey. These ... -
An investigation for potential extensions of the Karaca Cavern using geophysical methods
Seren, Aysel; Babacan, Ali Erden; Gelişli, Kenan; Ögretmen, Zeynep; Kandemir, Raif (Springer, 2012)It is extremely important for regional tourism to determine the possible extensions of Karaca Cavern, one of the most important tourism destinations of the GumuAYhane province in Northeast Turkey. Cavities in karstic areas ... -
Investigation of the relationship among fault types, focal depths, and Ionospheric TEC anomalies before large earthquakes between 2000 and 2020
Ulukavak, Mustafa; Yalçınkaya, Mualla; Kayıkçı, Emine Tanır; Öztürk, Serkan; Kandemir, Raif; Karslı, Hakan (ASCE- American Society of Civil Engineers, 2022)In this study, the relationships between possible ionospheric total electron content (TEC) anomalies and earthquake focal depths and fault types were investigated using 3,099 global earthquakes with Mw >= 6.0 between 2000 ... -
A Jurassic volcanic passive margin in Iran and Turkey
Azizi, Hossein; Stern, Robert J.; Kandemir, Raif; Karslı, Orhan (Wiley, 2022)Broadly similar Early to Middle Jurassic stratigraphic sequences including bimodal igneous rocks of the Sanandaj–Sirjan Zone of Iran and the Sakarya Zone of Turkey suggest that these formed in a common tectonic setting in ...