Güncel Gönderiler: Mühendislik ve Doğa Bilimleri Fakültesi
Toplam kayıt 697, listelenen: 541-560
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K-Ar dating, whole-rock and Sr-Nd isotope geochemistry of calc-alkaline volcanic rocks around the Gümüşhane area: implications for post-collisional volcanism in the Eastern Pontides, Northeast Turkey
(Springer-Verlag Wien, 2013-05-14)Volcanic rocks from the Gümüşhane area in the southern part of the Eastern Pontides (NE Turkey) consist mainly of andesitic lava flows associated with tuffs, and rare basaltic dykes. The K-Ar whole-rock dating of these ... -
Petrogenesis of the late Cretaceous Turnagöl intrusion in the eastern Pontides: Implications for magma genesis in the arc setting
(Production and hosting by Elsevier, 2012-09-28)A series of Cretaceous plutons is present in the eastern Pontides of northeastern Turkey. The Turnagöl intrusion is the least studied and, thus, the least understood plutons in the orogen. This intrusion consists of ... -
Petrochemistry and petrology of I-type granitoids in an arc setting: the composite Torul pluton, Eastern Pontides, NE Turkey
(Springer-Verlag 2007, 2007-04-16)The Upper Cretaceous Torul pluton, located in the Eastern Pontides, is of sub-alkaline affinity and displays features typical of volcanic arc granitoids. It is a composite pluton consisting of granodiorite, biotite hornblende ... -
U-Pb SHRIMP zircon ages, geochemical and Sr-Nd isotopic Compositions of the Late Cretaceous I-type Sarıosman pluton, Eastern Pontides, NE Turkey
(2009)Doğu Pontidler’de Geç Kretase yaşlı Sarıosman plutonu’nun petrojenezi ve U-Pb SHRIMP zirkon yaşları, tüm kayaç Sr-Nd izotop verileri ve arazi, petrografik ve tüm kayaç jeokimyasal verilerine dayanarak irdelenmiştir. I-tipi ... -
K/Ar ages and geochemistry of the post-collisional volcanic rocks in the Ilica (Erzurum) area, eastern Turkey
(E Schweizerbartsche Verlagsbuchhandlung, 2009)The Neogene Ilica volcanics in eastern Anatolia are of sub-alkaline affinity and present features of post-collisional volcanism. The lava flows in the Ilica area reveal K/Ar ages ranging from 13.9 +/- 0.5 to 4.4 +/- 0.3 ... -
Mineralogy, whole-rock and Sr–Nd isotope geochemistry of mafic microgranular enclaves in Cretaceous Dagbasi granitoids, Eastern Pontides, NE Turkey: Evidence of magma mixing, mingling and chemical equilibration
(0009-2819/$ - see front matter r 2008 Elsevier GmbH. All rights reserved. doi:10.1016/j.chemer.2008.08.002, 2008-08-04)Rocks of the Late Cretaceous Dagbasi Pluton (88–83 Ma), located in the eastern Pontides, include mafic microgranular enclaves (MMEs) ranging from a few centimetres to metres in size, and from ellipsoidal to ovoid inshape. ... -
Pushover and nonlinear time history analysis evaluation of a RC building collapsed during the Van (Turkey) earthquake on October 23, 2011
(Springer, 2014)The nonlinear seismic behavior of a collapsed reinforced concrete (RC) residential building in the city of Van in Turkey is investigated by the static pushover and nonlinear time history analyses. The selected RC structure ... -
Stochastic finite element analysis of a cable-stayed bridge system with varying material properties
(Elsevier Sci Ltd, 2010)Stochastic seismic finite element analysis of a cable-stayed bridge whose material properties are described by random fields is presented in this paper. The stochastic perturbation technique and Monte Carlo simulation (MCS) ... -
Stochastic finite element analysis of long-span bridges with CFRP cables under earthquake ground motion
(Indian Acad Sciences, 2010)Stochastic seismic analysis of long-span bridges with Carbon fibre reinforced polymer (CFRP) cables are presented in this study through combination of the advantages of the perturbation based stochastic finite element ... -
Effects of random material and geometrical properties on structural safety of steel–concrete composite systems
(INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN BIOMEDICAL ENGINEERING, 2011)A stochastic finite element-based algorithm for probabilistic analysis of structural systems made of composite sections with random material and geometrical properties under earthquake forces is proposed in this paper. ... -
Probabilistic sensitivity analysis of two suspension bridges in Istanbul, Turkey to near- and far-fault ground motion
(Copernicus Gesellschaft Mbh, 2012)The aim of this paper is to compare the near-fault and far-fault ground motion effects on the probabilistic sensitivity dynamic responses of two suspension bridges in Istanbul. Two different types of suspension bridges are ... -
A Linear Signal Combination Model for UWB Applications
(IEEE, 2014)Systems that use UWB technology based on communication with baseband signals of very short duration recently attract attention in communication and radar application, and thereof have been improving rapidly. Because UWB ... -
Kar Verilerinin İstatistiksel Analizi ve Doğu Karadeniz Bölgesinin Zemin Kar Yükü Haritasının Oluşturulması
(TMMOB İnşaat Mühendisleri Odası, 2005-07)Türkiye’de, özellikle Doğu Karadeniz bölgesinde, yapılar üzerinde biriken karın tasarım kar yükünden fazla olması sonucu pek çok çatı çökmekte veya hasar görmektedir. Modern standartlarda çatı kar yükü, tasarım zemin kar ... -
Formation of skarns at Gümüşhane (Northeastern Turkey)
(Neues Jahrbuch für Mineralogie-Abhandlungen, 2011)Skarn deposits are located in the NE Black Sea region of Turkey belonging to the Alpin metallogenic province. The Fe skarn deposit at Arnastal is hosted by Late Cretaceous carbonate rocks comprised of limestone and the ... -
Source Rock Characteristics and Hydrocarbon Potential of Late Cretaceous Deposits in the Eastern Black Sea Region, NE Turkey
(Energy Sources, Part A, 2008)In this article, source rock characteristics and hydrocarbon potential of the late Cretaceous turbidite sequences in the eastern Black Sea region were investigated. The total average organic carbon (TOC) contents of sequences ... -
Mineralogy and whole rock geochemistry of late Cretaceous sandstones from the eastern Pontides (NE Turkey)
(E Schweizerbartsche Verlags, 2011)This study focuses on Upper Cretaceous sandstones of the Eastern Pontides to identify the source area, subaerial weathering level, and tectonic environment. Thirty four sandstone samples from six stratigraphic sections ... -
Trace and Rare Earth Elements as Indicators of Provenance and Depositional Environments of Lias Cherts in Gumushane, NE, Turkey
(Chemie der Erde,, 2012)Trace elements and rare earth elements (REEs) of Lias-aged cherts in the Gumushane area were studied in order to understand their origin and depositional environment. Twenty three chert samples from five stratigraphic ... -
Petrography and geochemistry of Eocene sandstones from eastern Pontides (NE TURKEY): Implications for source area weathering, provenance and tectonic setting
(Maik Nauka/Interperiodica/Springer, 2012)Subaerial weathering level, source area and tectonic environments were interpreted by using petrographic and geochemical characteristics of Eocene age sandstones found in the eastern Pontides. The thickness of Eocene age ... -
Organic geochemical characteristics and depositional environments of Eocene deposits in the Eastern Black Sea Region, NE Turkey
(Energy Sources, Part A, 2013)The type of organic material, thermal maturity, depositional environment, and source rock potential of Eocene-aged clastic rocks of the Eastern Black Sea Region were investigated. Based on total organic carbon (TOC) values, ... -
Organic Maturity and Hydrocarbon Potential of Liassic Coals from the Eastern Pontides, NE Turkey
(Taylor & Francis Inc, 2015)Organic matter content, type of organic material, and thermal maturity of Lias-aged coals of the Gumushane and Bayburt areas were investigated. The total organic carbon contents of coals in the Gumushane area range from ...
