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Toplam kayıt 5394, listelenen: 2112-2131
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Geochemical characterization of late Jurassic-early Cretaceous age limestones from Gumushane (NE-Turkiye): identification of the source of organic matter and paleo-environment conditions
(SPRINGER, 2022)Samples from late Jurassic-early Cretaceous age limestones in five different areas in the Gumushane region (NE-Turkiye), were studied using TOC/Rock-Eval, and some trace elements analysis, to evaluate their organic material ... -
Geochemical composition of magnetite from different iron skarn mineralizations in NE Turkey: implication for source of ore-forming fluids
(Springer Heidelberg, 2020)Iron oxide mineralizations in the eastern part of the Pontides (NE Turkey) are hosted in the skarn environments which are the Pontide paleomagmatic arc. These mineralizations always occur in the contacts between granitoid ... -
Geochemical constraints on the provenance, mineral sorting and subaerial weathering of Lower Jurassic and Upper Cretaceous clastic rocks of the eastern Pontides, Yusufeli (Artvin), NE Turkey
(Scientific Technical Research Council Turkey-Tubitak, 2006)An integrated petrographic and geochemical study of the shales and sandstones of Early Jurassic and Late Cretaceous age in the Yusufeli area ( Turkey) was carried out to obtain more information on their provenance, ... -
Geochemical differences between bed and terrace sediments of the Harşit Stream (NE Turkey): Implications for mixed source rocks, weathering and mass transfer
(2020)There are minor geochemical differences between Harşit Stream bedand terrace sediments, and these can be owing to the impacts of climatic differences and chemical weathering rather than source rock composition. The ... -
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
(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
(Springer-Verlag Wien, 2014)We present the whole-rock and the mineral chemical data for upper mantle peridotites from the Harmanci{dotless}k region in NW Turkey and discuss their petrogenetic-tectonic origin. These peridotites are part of a Tethyan ... -
Geochemical, fluid inclusion and isotopic (O, H and S) constraints on the origin of Pb-Zn +/- Au vein-type mineralizations in the Eastern Pontides Orogenic Belt (NE Turkey)
(Elsevier Science Bv, 2016)The mineralization area (Altinpinar, Torul-Gumushane) is situated in the Southern Zone of the Eastern Pontides Orogenic Belt (EPOB), which is one of the important metallogenic provinces in the Alpine-Himalayan belt and is ... -
Geochemical, fluid inclusion and isotopic (O, H and S) constraints on the origin of Pb–Zn ± Au vein-type mineralizations in the Eastern Pontides Orogenic Belt (NE Turkey)
(Elsevier, 2015-11-11)The mineralization area (Altınpınar, Torul–Gümüşhane) is situated in the Southern Zone of the Eastern Pontides Orogenic Belt (EPOB),which is one of the important metallogenic provinces in the Alpine–Himalayan belt and is ... -
Geochemistry and Pb isotopic proof for sources of heavy metal(loid)s in Late Cretaceous sandstones from Eastern Pontides (NE Turkey)
(Springer, 2021)Upper Cretaceous sedimentary rocks are widely exposed around Trabzon, Giresun and Gumushane in the eastern Pontides. The sedimentary rocks are mainly composed of sandstones and marls, and the thicknesses of these rocks ... -
Geochemistry of Coruh River Bed Sediments in NE Turkey: Implications in Weathering-Sedimentary Cycle, Provenance, and Metal Pollution
(Maik Nauka/Interperiodica/Springer, 2018)This study defines the source area, sub-aerial weathering, and sedimentary cycle level, as well as heavy metal content and origin, of the Coruh River bed sediments. The studied sediments are geochemically classified as ... -
Geochemistry of dacitic volcanics in the Eastern Pontides (NE Turkey)
(Maik Nauka/Interperiodica/Springer, 2014)Dacitic rocks that crop out around the Zigana Mountain (GumuAYhane) in the eastern Pontide (NE Turkey), are mainly composed of quartz, plagioclase, sanidine, amphibole, muscovite, and biotite as the main minerals. Zircon ... -
Geochemistry of the Middle Jurassic sediments in Gumushane, north-eastern Turkey: Implications for weathering and provenance
(Wiley, 2020)The whole-rock geochemistry and Sr-Nd isotope data of Middle Jurassic sedimentary rocks in the Gumushane area (north-eastern Turkey) were analysed to reconstruct the provenance, chemical weathering, sediment recycling ... -
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
(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 ... -
Geochronological evidence and tectonic significance of Carboniferous magmatism in the southwest Trabzon area, eastern Pontides, Turkey
(Taylor & Francis Inc, 2012)The northern and southern zones of the eastern Pontides (northeast Turkey) contain numerous plutons of varying ages and compositions. Geochemical and isotopic results on two Hercynian granitoid bodies located in the northern ... -
Geochronology and geochemistry of Eocene-aged volcanic rocks around the Bafra (Samsun, N Turkey) area: Constraints for the interaction of lithospheric mantle and crustal melts
(Elsevier Science Bv, 2016)Ar-40-Ar-39 age, whole-rock chemical, and Sr-Nd isotope data are presented for the post-collisional, Eocene (51.3-44.1 Ma)-aged volcanic rocks from the Bafra (Samsun) area in the western part of the Eastern Pontides (N ... -
Geochronology, geochemistry, and petrogenesis of the Eocene Bayburt intrusions, Eastern Pontide, NE Turkey: implications for lithospheric mantle and lower crustal sources in the high-K calc-alkaline magmatism
(2015-04-28)Eocene I-type plutons are widespread in the Eastern Pontides, Northeastern Turkey. Geochemical and isotopic results on two Eocene intrusive bodies located in the southern zone of the Eastern Pontides were utilized to achieve ... -
Geochronology, geochemistry, and petrogenesis of the Eocene Bayburt intrusions, Eastern Pontides, NE Turkey: Evidence for lithospheric mantle and lower crustal sources in the high-K calc-alkaline magmatism
(Pergamon-Elsevier Science Ltd, 2015)Eocene I-type plutons are widespread in the Eastern Pontides, Northeastern Turkey. Geochemical and isotopic results on two Eocene intrusive bodies located in the southern zone of the Eastern Pontides were utilized to achieve ... -
Geochronology, geochemistry, and petrology of adakitic Pliocene-Quaternary volcanism in the Sebinkarahisar (Giresun) area, NE Turkey
(Taylor & Francis Inc, 2019)The Pliocene-Quaternary volcanics in NE Turkey are mainly hornblende-phyric trachyandesites having a narrow range of SiO2 from 61.88 to 63.00 wt.% and exhibiting adakitic signatures with their Na2O (3.67-4.27 wt.%), Al2O3 ... -
Geochronology, petrogenesis and tectonic importance of Eocene I-type magmatism in the Eastern Pontides, NE Turkey
(Springer Heidelberg, 2021)Eastern Pontides are hosted to many granitoids with different composition, size and age ranges from Paleozoic to Cenozoic. Of these granitoids, especially those of the Cenozoic age are commonly observed in the southern ... -
Geographic distribution of two Montivipera taxa using ecological niche modeling
(Springer, 2023)Ecological niche modeling predicts the potential distribution areas of species and contributes to measuring the niche differentiation among taxa. Montivipera albizona and M. bulgardaghica are two mountain viper taxa ...