Yazar "Uysal, İbrahim" için listeleme
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Age, adult survival rate, and adult life expectancy of a podarcis tauricus population (reptilia: lacertidae) from Saros bay, Turkey
Altunışık, Abdullah; Kalaycı, Tuğba Ergül; Uysal, İbrahim; Tosunoğlu, Murat; Özdemir, Nurhayat (Folium Publ Co, 2016)In this study, the age composition of a Podarcis tauricus population from Saros Bay (northwest Turkey) was determined by skeletochronology. 27 preserved adults (20 female female, 5 male male, 2 juveniles) were evaluated ... -
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 ... -
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 ... -
Geochemical make-up of oceanic peridotites from NW Turkey and the multi-stage melting history of the Tethyan upper mantle
Uysal, İbrahim; Şen, A. Dündar; Ersoy, E. Yalçın; Dilek, Yıldırm; Saka, Samet; Zaccarini, Federica; Escayola, Monica; Karslı, Orhan (Springer Wien, 2014)We present the whole-rock and the mineral chemical data for upper mantle peridotites from the Harmancik region in NW Turkey and discuss their petrogenetic-tectonic origin. These peridotites are part of a Tethyan ophiolite ... -
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, 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 ... -
Geology and genesis of the Silica-Listwaenite hosted Kaymaz gold deposit, Eskişehir, NW-Turkey: Implications from fluid inclusions and pyrite chemistry
Yavuz, Hikmet; Demir, Yılmaz; Kasapçı, Cem; Uysal, İbrahim; Helvacı, Cahit (Elsevier, 2022)The Kaymaz gold deposit comprises Damdamca, Karakaya, Küçük Mermerlik, and Kızılağıl ore zones within an area underlain by serpentinite and far-traveled Paleozoic-Mesozoic high-pressure metamorphic rocks. The Kızılağıl ore ... -
Late Jurassic Paleotethyan oceanic slab break-off revealed by Sr-Nd-Hf isotopes of Na-rich adakitic granites from northwestern Turkey
Karslı, Orhan; Şengün, Fırat; Santos, Jose Francisco; Uysal, İbrahim; Dokuz, Abdurrahman; Aydın, Faruk; Kandemir, Raif (Elsevier, 2021)The Mesozoic geodynamic evolution of the Paleotethys Ocean is critical but a poorly known piece of the geological history of the Sakarya Zone, north Turkey. Here, we describe new integrated research of zircon U-Pb ... -
Latest Cretaceous "A(2)-type" granites in the Sakarya Zone, NE Turkey: Partial melting of mafic lower crust in response to roll-back of Neo-Tethyan oceanic lithosphere
Karslı, Orhan; Aydın, Faruk; Uysal, İbrahim; Dokuz, Abdurrahman; Kumral, Mustafa; Kandemir, Raif; Ketenci, Murat (Elsevier Science Bv, 2018)An integrated study of comprehensive geochronological, geochemical, and Sr-Nd-Hf isotopic data was undertaken for the A-type Topcam pluton that intruded within the Sakarya Zone (NE Turkey) with the aims of elucidating its ... -
Mineral chemical investigation on sulfide mineralization of the Istala deposit, Gumushane, NE-Turkey
Demir, Yılmaz; Uysal, İbrahim; Sadıklar, Münür Burhan (Elsevier Science Bv, 2013)The mineralogy of the Istala deposit, Gumushane, northeastern Turkey, was studied in detail, and a geochemical investigation was carried out using electron probe micro-analysis (EPMA). Sphalerite, galena, chalcopyrite and ... -
Mineralogy, mineral chemistry, fluid inclusion, and stable isotope investigations of the Kabaduz ore veins, Ordu, NE-Turkey
Demir, Yılmaz; Uysal, İbrahim; Sadıklar, M. Burhan; Ceriani, Andrea; Hanilçi, Nurullah; Mueller, Dirk (Elsevier, 2015)Hydrothermal vein-type deposits of the Kabaduz region (Ordu, NE-Turkey) are located in Upper Cretaceous andesitic-basaltic rocks and were formed in fault zones along NW-SE direction lines, with thicknesses varying between ... -
Nature of the Early Cretaceous lamprophyre and high-Nb basaltic dykes, NE Turkey: Constraints on their linkage to subduction initiation of Neotethyan oceanic lithosphere
Karslı, Orhan; İlhan, Mehdi; Kandemir, Raif; Dokuz, Abdurrahman; Aydın, Faruk; Uysal, İbrahim; Duygu, Levent (Elsevier B.V., 2021)Late Mesozoic evolution of the Neotethys Ocean is critical and still remains unclear along the entire Sakarya Zone (SZ), Turkey, because previous interpretations of the Middle to Late Jurassic rifting of the SZ have not ... -
Petrogenesis of ultramafic rocks from the eastern Orhaneli ophiolite, NW Turkey: Hints on the initiation and evolution of melt-peridotite interaction processes within a heterogeneously depleted mantle section
Uysal, İbrahim; Dokuz, Abdurrahman; Kapsiotis, Argyrios; Saka, Samet; Karslı, Orhan; Kaliwoda, Melanie; Mueller, Dirk (Pergamon-Elsevier Science Ltd, 2017)The eastern Orhaneli ophiolite in NW Anatolia (Turkey) consists of voluminous dunite and minor harzburgite intruded by clinopyroxenite veins. Harzburgite contains spinel of low Cr# [100 x Cr/(Cr + Al) = 40-45] and diopside ... -
Sivas Heremites vittatus (Şeritli Kertenkele) (Olivier, 1804) örnekleri üzerinde İskelet kronolojisi yöntemi ile yaş tayini
Kalaycı, Tuğba Ergül; Altunışık, Abdullah; Uysal, İbrahim; Tosunoğlu, Murat; Özdemir, Nurhayat (2018)Sürüngenlerde yaş yapısının, eşeysel olgunluk yaşının ve ömür uzunluğunun bilinmesi onların yaşam öyküsü özelliklerinin ekolojik ve evrimsel yönleri ile anlaşılmasında yardımcı olmaktadır. Bu çalışmada, Sivas (Türkiye)’tan ... -
Temporal, geochemical and geodynamic evolution of the Late Cretaceous subduction zone volcanism in the eastern Sakarya Zone, NE Turkey: Implications for mantle-crust interaction in an arc setting
Aydın, Faruk; Saka, Simge Oğuz; Şen, Cüneyt; Dokuz, Abdurrahman; Aiglsperger, Thomas; Uysal, İbrahim; Kandemir, Raif; Karslı, Orhan; Sarı, Bilal; Başer, Rasim (Pergamon-Elsevier Science Ltd, 2020)The Late Cretaceous Artvin volcanic rocks (LCAVs) from the eastern Sakarya zone (ESZ) of NE Turkey are composed of mafic/basaltic (S1-catak and S2-caglayan) and felsic/acidic (S1-Kizilkaya and S2-Tirebolu) rock types that ... -
Tracking the timing of Neotethyan oceanic slab break-off: Geochronology and geochemistry of the quartz diorite porphyries, NE Turkey
Karslı, Orhan; Dokuz, Abdurrahman; Aydın, Faruk; Uysal, İbrahim; Şengün, Fırat; Kandemir, Raif; Santos, Jose Francisco; Andersen, Tom (Pergamon-Elsevier Science Ltd, 2020)The initiation of the break-off of the northern branch of the Neotethyan oceanic lithosphere is an important but poorly understood event in the geology of the Sakarya Zone (SZ) in northeastern Turkey. Although it is wellknown ...