Erişim şekli için "info:eu-repo/semantics/openAccess" Jeoloji Mühendisliği Bölümü Koleksiyonu listeleme
Toplam kayıt 17, listelenen: 1-17
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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 ... -
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 ... -
Development and characterization of clinoptilolite-, mordenite-, and analcime-based geopolymers: A comparative study
(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 ... -
Effect of characteristics of natural zeolites on their geopolymerization
(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 ... -
Geochemistry of the Lake Sediments on Robert Island, South Shetland Islands, Antarctica: implications for weathering processes in Polar areas
(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 Turonian-Coniacian strata: New insight into paleoenvironmental conditions of the Tethys, Eastern Pontides, NE Turkiye
(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 ... -
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 ... -
Geology and genesis of the Silica-Listwaenite hosted Kaymaz gold deposit, Eskişehir, NW-Turkey: Implications from fluid inclusions and pyrite chemistry
(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 ... -
Mechanical and radiation attenuation properties of conventional and heavy concrete with diverse aggregate and water/cement ratios
(Croatian Association of Civil Engineers, 2022)This paper presents the results of comprehensive laboratory work conducted for investigating the mechanical and radiation attenuation characteristics of heavyweight concrete produced with pyrite, chromium, and magnetite ... -
The multidisciplinary approaches on facies developments and depositional systems of the Bahcecik travertines, Gumushane, NE-Turkey
(Scientific Technical Research Council Turkey, TÜBİTAK, 2021)The Bahcecik travertines, located in Gumushane (NE-Turkey) have been investigated for the first time using a multidisciplinary approach, which included sedimentological (lithofacies, depositional system), petrographic, ... -
Palaeobiogeographical implications of the first fossil wood flora from the Jurassic of Turkey
(Instytut Paleobiologii PAN, 2022)We describe Jurassic fossilized woods from the Gümüşhane and Erzurum regions of Turkey that represent the eastern Sakarya Zone (eSZ) terrestrial biota. We collected 27 fossil wood fragments in total. All 27 fossil wood ... -
The petrogenesis of analcime in the coppermine formation on Robert Island, South Shetland ıslands, Antarctica
(TUBİTAK Scientific & Technical Research Council Turkey, 2023)The South Shetland Islands were shaped by island arc volcanism that occurred from the Jurassic to the Quaternary. Robert Island is located in the center of this archipelago, and Coppermine Peninsula, located on the ... -
REE characteristics of lower cretaceous limestone succession in Gumushane, NE Turkey: implications for ocean paleoredox conditions and diagenetic alteration
(Mdpi, 2020)Trace and rare earth elements (REEs) are considered to be reliable indicators of chemical processes for the evolution of carbonate systems. One of the best examples of ancient carbonate successions (Berdiga Formation) is ... -
Sequential formation of natrolite-group zeolites in amygdules of basaltic lavas
(Mineralogical Assoc Canada, 2015)Natrolite-group minerals were found in amygdules in Middle Eocene basaltic lavas in northern central Anatolia and have been evaluated in detail by petrographical, mineralogical, and chemical studies. A sequential formation ... -
Upper Campanian calciclastic turbidite sequences from the Hacimehmet area (eastern Pontides, NE Turkey): integrated biostratigraphy and microfacies analysis
(Polska Akad Nauk, Polish Acad Sciences, Univ Warsaw, Geology Dept, 2014)The upper Campanian (Cretaceous) of the Hacimehmet area (south of the city of Trabzon; Eastern Pontides) is mainly composed of calciclastic turbidites. the basinal unit of the 119 m thick succession includes thin red pelagic ... -
The Upper cretaceous calciclastic submarine fan deposits in the Eastern Pontides, NE Turkey: facies architecture and controlling factors
(2013)The Tonya Formation, which represents the uppermost part of the Mesozoic sequence in the Eastern Pontides, consists of calciturbidites in Trabzon and its surrounding region. Two stratigraphic sections of the unit were ... -
Volkanik tüf esaslı geopolimerlerin basınç dayanımına kür süresi ve sıcaklığın etkileri
(Gümüşhane Üniversitesi, 2021)Çimento klinkeri üretimi esnasında atmosfere salınan CO2 gazı sera etkisi nedeniyle küresel ısınmaya neden olmaktadır. Günümüzde bu durum çok tehlikeli boyutlara ulaşmış olup insan yaşamını tehdit eder hale gelmiştir. Bu ...