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Toplam kayıt 63, listelenen: 31-40
Cordierite-bearing strongly peraluminous cebre rhyolite from the eastern Sakarya Zone, NE Turkey: Constraints on the variscan orogeny
(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 ...
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
(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 ...
Crustal evolution of NW Iran: Cadomian arcs, archean fragments and the cenozoic magmatic flare-up
(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 ...
Compressive strength and microstructural characteristics of natural zeolite-based geopolymer
(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 ...
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
(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 ...
The bio-lithoclastic carbonate facies analysis: Sahinkaya Member Maastrichtian (Late Cretaceous) skeletal carbonate deposit, Sakarya Zone, NE Turkey
(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 ...
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
(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 ...
Vulnerable geosites of cayirbagi-calkoy (Duzkoy-Trabzon) in the Eastern Black Sea region of NE Turkey and their geotourism potential
(Springer Heidelberg, 2019)
Geotourism is a relatively new branch of tourism dealing with geosites, which are special places that exhibit aspects that characterize the complex history of the Earth. This contribution aims to report an inventory of ...
What processes control the genesis of absarokite to shoshonite-banakite series in an intracontinental setting, as revealed by geochemical and Sr-Nd-Pb isotope data of Karadak Stratovolcano in Central Anatolia, Turkey
(Elsevier, 2019)
The Latest Cenozoic absarokite to shoshonite-banakite series (ASB) samples were discovered in the Karadag stratovolcano (KS) which erupted in the Karaman basin in Central Anatolia, Turkey; and has a spatially close association ...
Geological, mineralogical and geochemical properties of the Dagbast skarn ores (Arakh-Trabzon, NE Turkey)
(Maden Tetkik ve Arama Genel Mudurlugu-Mta, 2019)
The Dagbasi skarns have developed as an exoskarn type along the nearest border of Upper Cretaceous Dagbasi Granitoid and block- and lens-shaped limestones of Berdiga formation located in the Liassic volcanics. the early ...