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Full-Text Articles in Physical Sciences and Mathematics
Contemporary Velocity Field For Turkey Inferred From Combination Of A Dense Network Of Long Term Gnss Observations, Ali̇ İhsan Kurt, Ali̇ Değer Özbakir, Ayhan Ci̇ngöz, Semi̇h Ergi̇ntav, Uğur Doğan, Seda Özarpaci
Contemporary Velocity Field For Turkey Inferred From Combination Of A Dense Network Of Long Term Gnss Observations, Ali̇ İhsan Kurt, Ali̇ Değer Özbakir, Ayhan Ci̇ngöz, Semi̇h Ergi̇ntav, Uğur Doğan, Seda Özarpaci
Turkish Journal of Earth Sciences
The Anatolia?Aegean domain represents a broad plate boundary zone, with the deformation accommodated by major faults bounding quasi-low deforming units. First-order features of this deformation were obtained in the form of a GNSS-derived velocity field. During the last decade, the accuracy of velocity solutions was improved, and the expansion of continuous networks increased spatial resolution. Nonetheless, an accurate representation of the deformation field requires interstation distances much lower than the locking depth of nearby faults, which has not yet been satisfied. The basis for creating a precise and accurate velocity field is uniform processing of the time series recorded both …
Hydrogeochemical Pattern And Environmental Isotope Hydrology Of Coastal Bademli Geothermal Area (Bga) In Western Turkey (Dikili-İzmir): A New Geothermal Prospect, Adi̇le Meli̇s Somay Altaş, Ünsal Gemi̇ci̇
Hydrogeochemical Pattern And Environmental Isotope Hydrology Of Coastal Bademli Geothermal Area (Bga) In Western Turkey (Dikili-İzmir): A New Geothermal Prospect, Adi̇le Meli̇s Somay Altaş, Ünsal Gemi̇ci̇
Turkish Journal of Earth Sciences
Bademli geothermal area (BGA) is located on the coastline of Dikili-İzmir province and consists of Bademli spring and Hayıtlı areas with 36.8-51°C discharge temperatures, respectively. The waters of Hayıtlı borehole have remarkable seawater mixing ratios like Bademli spring and have Na-Cl water type. Dikili group pyroclastic volcanic units constitute the reservoir rock in the entire geothermal area. The heat source is relatively elevated geothermal gradient caused by extensional tectonics forming E-W trending grabens. Bademli thermal water is plotted in the "immature waters" area in the Na-K-Mg triangular diagram with a calculated seawater contribution of 18%. Therefore, some cation geothermometers are …
Geology Of The Eastern Anatolian Plateau (Turkey): A Synthesis, Ali̇ Yilmaz, Gülteki̇n Topuz, Tuna Eken, Osman Candan, Hüseyi̇n Yilmaz
Geology Of The Eastern Anatolian Plateau (Turkey): A Synthesis, Ali̇ Yilmaz, Gülteki̇n Topuz, Tuna Eken, Osman Candan, Hüseyi̇n Yilmaz
Turkish Journal of Earth Sciences
The Eastern Anatolian Plateau (EAP), approximately 2000 m above sea level, is located between the Eastern Pontides to the north, the Arabian Platform to the south, and the Iranian Plateau to the east. It is characterized by approximately 6 km-thick Maastrichtian to Quaternary volcano-sedimentary cover which unconformably overlies continental and oceanic basement units. Overall, the outcrops of the pre-Maastrichtian basement are rare and include both continental and oceanic units. This led to drastically different interpretations of the nature of the pre-Maastrichtian basement as (i) the oceanic accretionary complex or (ii) continental crust and overlying ophiolitic mélange. This synthesis deals with …
Hydrogeochemical Fingerprints Of A Mixohaline Wetland In The Mediterranean: Güllük Coastal Wetland Systems- Gcws (Muğla, Turkey), Adi̇le Meli̇s Somay Altaş
Hydrogeochemical Fingerprints Of A Mixohaline Wetland In The Mediterranean: Güllük Coastal Wetland Systems- Gcws (Muğla, Turkey), Adi̇le Meli̇s Somay Altaş
Turkish Journal of Earth Sciences
The Güllük coastal wetland system (GCWS), which is located at the contact point of the Menderes Massif and Lycian Nappe, consists of both brackish karstic [Güllük Lagoon wetland (GLW)] and saline [Boğaziçi-Tuzla (Bargylia) coastal wetland (BTW)] ecosystems in western Turkey, and is under protection as a national wetland of importance. This area is important for its unique wetland features, aquaculture, tourism, agriculture, Bodrum airport, and Güllük port facilities. The aim of this study was to evaluate the GLW and BTW, both hydrogeologically and hydrogeochemically, for the first time together. The mixohaline GCWS is recharged from precipitation, streams, and brackish karstic …
High Heat Generating Granites Of Kestanbol: Future Enhanced Geothermal System (Egs)Province In Western Anatolia, Dornadula Chandrasekharam, Alper Baba
High Heat Generating Granites Of Kestanbol: Future Enhanced Geothermal System (Egs)Province In Western Anatolia, Dornadula Chandrasekharam, Alper Baba
Turkish Journal of Earth Sciences
Although the western Anatolian region is a foci for hydrothermal systems, this region has several high heat-generating granitic intrusive bodies that qualify to be candidates for enhanced geothermal systems (EGS). Considering the future energy requirement, carbon dioxide emissions reduction strategies, food, and water security issues, these granites appear to be the future clean energy source for the country. One such granite intrusive is located in the Kestanbol area in the western Anatolian region. The radioactive heat generation of this 28 Ma old granite varies from 5.25 to 10.38 μW/m3 with a heat flow of 92.47 to 128.61 mW/m 2. These …
Multiple Fluid-Mineral Equilibria Approach To Constrain The Evolution Of Thermal Watersin The Hisaralan Geothermal Field, Simav Graben, Western Turkey, Ali̇ Gökgöz, Hali̇m Mutlu, Mehmet Özkul, Ali̇ Kami̇l Yüksel
Multiple Fluid-Mineral Equilibria Approach To Constrain The Evolution Of Thermal Watersin The Hisaralan Geothermal Field, Simav Graben, Western Turkey, Ali̇ Gökgöz, Hali̇m Mutlu, Mehmet Özkul, Ali̇ Kami̇l Yüksel
Turkish Journal of Earth Sciences
In this study seasonal changes in the geochemical and stable isotope compositions of Hisaralan thermal waters in Simav Graben, western Turkey, were investigated with regards to a variety of mineral-water interactions and mixing processes. The Hisaralan and Emendere geothermal waters, with temperatures of up to 99 °C, were mostly of Na-HCO3 and Ca-HCO3 types. The δ18O and δ2H values of the Hisaralan waters ranged from -9.32‰ to -8.73‰ and -65.02‰ to -61.10‰, with maximum seasonal differences of 0.3‰ and 1.8‰. The Emendere waters were represented by a more positive range of δ2H values (-54.95‰ to -54.61‰), while their δ18O compositions …
Quantifying The Bathymetric Stripping Gravity Corrections Of Global Seawater And Majorlakes Over Turkey, Mehmet Si̇mav, Hasan Yildiz
Quantifying The Bathymetric Stripping Gravity Corrections Of Global Seawater And Majorlakes Over Turkey, Mehmet Si̇mav, Hasan Yildiz
Turkish Journal of Earth Sciences
Gravity data inversion or interpretation requires the removal of the gravitational effects of the a priori known geologic and/or morphologic features within the Earth?s system to model and reveal the remaining signals of the unknown anomalous subsurface density distributions. The Bouguer gravity anomalies reduced by the normal gravitational field of the Earth and the gravitational attraction of the topographic masses above the sea level are frequently used in geophysics for this purpose. However, density contrast effects of the other major known elements, such as offshore seawater, inland water bodies, glaciers, and/or sediments can be removed from the Bouguer gravity anomalies, …
Determining The Lake Protected Zones Using Gis-Based Drastic Model To Groundwatervulnerability In Salda Lake Basin (Burdur/Turkey), Si̇mge Varol, Ayşen Davraz, Erhan Şener, Şehnaz Şener, Fatma Aksever, Bülent Kirkan, Ahmet Tokgözlü
Determining The Lake Protected Zones Using Gis-Based Drastic Model To Groundwatervulnerability In Salda Lake Basin (Burdur/Turkey), Si̇mge Varol, Ayşen Davraz, Erhan Şener, Şehnaz Şener, Fatma Aksever, Bülent Kirkan, Ahmet Tokgözlü
Turkish Journal of Earth Sciences
Groundwater quality is a crucial parameter for sustainable wetland management. The evaluation of the aquifer vulnerability is important for the protection of groundwater resources. The DRASTIC model is the most significant technique for the assessment of aquifer vulnerability. This study aimed to build a vulnerability map for groundwater of the Salda Lake wetland basin by DRASTIC method in a GIS environment. Seven environmental parameters (depth to water table, net recharge, aquifer media, soil media, topography, impact of the vadose zone media, and hydraulic conductivity of the aquifer) were used in the DRASTIC method and GIS was used to constitute a …
Hyracoidea From The Middle Miocene Hominoid Locality Of Paşalar (Nw Turkey), Martin Pickford, Serdar Mayda, Berna Alpagut, Fatma Arzu Demi̇rel, Ayşegül Şarbak, Tümel Tanju Kaya
Hyracoidea From The Middle Miocene Hominoid Locality Of Paşalar (Nw Turkey), Martin Pickford, Serdar Mayda, Berna Alpagut, Fatma Arzu Demi̇rel, Ayşegül Şarbak, Tümel Tanju Kaya
Turkish Journal of Earth Sciences
Previously available samples of Hyracoidea from Paşalar (MN 6, Middle Miocene), Turkey, have indicated the presence of Pliohyracidae at the site, but the material was too scanty for confident identification. The single upper molar, an upper molar ectoloph fragment and an ascending ramal fragment were too uninformative for determining the taxonomic identity of the fossils, although several names have been proposed in the literature. Additional fossils collected from Paşalar include upper and lower premolars, which help to tie down the affinities of this hyracoid. They are attributed to the genus Prohyrax, but were not named specifically, even though they are …
Upper Cretaceous Volcaniclastic Complexes And Calcareous Plankton Biostratigraphy Inthe Western Pontides, Nw Turkey, Katharina Boehm, Michael Wagreich, Erik Wolfgring, Okan Tüysüz, Susanne Gier, İsmai̇l Ömer Yilmaz
Upper Cretaceous Volcaniclastic Complexes And Calcareous Plankton Biostratigraphy Inthe Western Pontides, Nw Turkey, Katharina Boehm, Michael Wagreich, Erik Wolfgring, Okan Tüysüz, Susanne Gier, İsmai̇l Ömer Yilmaz
Turkish Journal of Earth Sciences
This study describes and interprets Upper Cretaceous volcaniclastics interbedded with hemipelagic to pelagic limestones, marls, and turbidites from the Western Pontides, northwestern Turkey. The Dereköy Formation, the Unaz Formation (red pelagic limestone unit), and the Cambu Formation can be distinguished, overlain by the turbiditic Akveren Formation. Biostratigraphic ages from the predominantly volcaniclastic Dereköy Formation indicate Turonian (Dicarinella concavata planktonic foraminifera zone, CC13/UC8-9 nannofossil zones) to middle/late Santonian ages up to CC17/UC13. The Unaz Formation, deposited during the late Santonian (UC13, Dicarinella asymetrica Zone), is overlain by the volcaniclastic Cambu Formation of latest Santonian (CC17b/UC13) to early/middle Campanian (CC20/UC15a) age. However, …
Microborings As Indication Of Cryptic Life Modes In The Foraminifer Orbitoides:Maastrichtian Sediments Of The Haymana And Nallıhan Districts (Ankara, Turkey), Muhi̇tti̇n Görmüş, Huri̇ye Demi̇rcan, Yusuf Kağan Kadioğlu, Fuzuli̇ Yağmurlu, Muhammed Sami̇ Us
Microborings As Indication Of Cryptic Life Modes In The Foraminifer Orbitoides:Maastrichtian Sediments Of The Haymana And Nallıhan Districts (Ankara, Turkey), Muhi̇tti̇n Görmüş, Huri̇ye Demi̇rcan, Yusuf Kağan Kadioğlu, Fuzuli̇ Yağmurlu, Muhammed Sami̇ Us
Turkish Journal of Earth Sciences
Widespread Maastrichtian siliciclastics and carbonates cropping out in the Haymana (S Ankara) and Nallıhan (NW Ankara) districts in the northwest and central Anatolia basins include rich Orbitoides occurrences. Microborings in the Orbitoides tests are interesting to notify. In this study, the details of their morphologic structures were investigated. Microborings were analyzed in more than 650 equatorial thin sections of the Orbitoides tests and 100 hard rock thin sections. The abundance of microborings increases in the siliciclastics towards the Cretaceous/Palaeogene boundary (K/Pg). They were identified as Maeandropolydora osmaneliensis Nielsen and Görmüş, Maeandropolydora isp. Curvichnus semorbis Nielsen, Oichnus simplex Bromley, Oichnus isp. …
Blue Sky At Midnight - Earthquake Lightning, Neil Whitehead, Ülkü Ulusoy
Blue Sky At Midnight - Earthquake Lightning, Neil Whitehead, Ülkü Ulusoy
Turkish Journal of Earth Sciences
Earthquake light, emerging from the ground as flashes at night (neglecting other more minor forms), usually has a white hemispherical center and blue outer part. The blue resembles daytime blue sky. Its existence is increasingly verified, with about 80 videos on the web to mid-2017. However, the light must be differentiated from power-grid faults, so sound/color/form/length criteria were developed in this paper through examination of many videos. Light should be coseismic (i.e. when the S-waves arrive), hemispherical, not during a storm, less than 1 s long, without fire or smoke, and without many rapid color changes. Warnings about camera artifacts …
Devonian-Carboniferous Brachiopods And Biostratigraphic Findings From The Kangal Phyllite-Slate Formation (Greenschist), Sivas, Turkey, Cazi̇be Sayar, Ali̇ Seydi̇ Gülteki̇n, Mustafa Si̇mav Bargu, Esra Alkan
Devonian-Carboniferous Brachiopods And Biostratigraphic Findings From The Kangal Phyllite-Slate Formation (Greenschist), Sivas, Turkey, Cazi̇be Sayar, Ali̇ Seydi̇ Gülteki̇n, Mustafa Si̇mav Bargu, Esra Alkan
Turkish Journal of Earth Sciences
The Kangal Phyllite-Slate Formation forms the basement rocks in Kangal-Çetinkaya-Alacahan-Divriği (Sivas). These late Paleozoic phyllite-slate associations occupy a large area, possibly composed of Early Paleozoic sediments in its lower part. The lower levels (Bakırtepe Metaquartzite Member; 0-500 m) and uppermost levels comprise the Düzce Recrystallized Limestone Member (0-25 m). The lower boundary is invisible and the upper boundary is unconformably overlain by the Kıratgediği Limestone (late Jurassic- early Cretaceous). The studied brachiopod fauna, about 400 specimens, was collected from the 150-m-thick uppermost part of the greenschist sequences in the Kulluk Hill area, Elkondu village, 25 km east of Kangal. Some …
Frequency-Dependent Body-Q And Coda-Q In Karlıova Triple Junction And Its Vicinity,Eastern Turkey, Alper Demi̇rci̇
Frequency-Dependent Body-Q And Coda-Q In Karlıova Triple Junction And Its Vicinity,Eastern Turkey, Alper Demi̇rci̇
Turkish Journal of Earth Sciences
A dataset obtained from six broadband stations of 111 small- to moderate-sized local events that occurred between 2010 and 2018 was analyzed to reveal the frequency-dependent seismic body (body-Q) and coda (coda-Q) wave attenuation characteristics of three tectonic branches of the Karlıova Triple Junction: the Varto Fault Zone (VFZ), North Anatolian Fault Zone (NAFZ), and East Anatolian Fault Zone. The magnitude range was between 2.8 and 6.1 with shallow (
Energy And Economic Assessment Of Major Free Cooling Retrofits For Data Centers In Turkey, Ozan Gözcü, Hamza Sali̇h Erden
Energy And Economic Assessment Of Major Free Cooling Retrofits For Data Centers In Turkey, Ozan Gözcü, Hamza Sali̇h Erden
Turkish Journal of Electrical Engineering and Computer Sciences
Mechanical cooling is responsible for a significant fraction of the energy consumption of data centers (DCs). Free cooling systems take advantage of ambient conditions to reduce the need for compressor-based cooling. This study utilizes thermodynamic models of major free cooling systems such as the direct air-side economizer (ASE), indirect air-side economizer (IASE), indirect evaporative cooler (IEC), and indirect water-side economizer (WSE) integrated with the existing cooling infrastructure of a typical 1 MW IT load DC. Proposed models utilize hourly weather data of various cities in Turkey to compute annual energy consumption and cost-saving potentials of each free cooling method with …
Mineral Records Of The Pyroxenites Formed Within Harzburgites (Ulaş, Sivas, Turkey): Implications On Petrogenesis And Tectonic Setting, Özgür Bi̇li̇ci̇, Hasan Kolayli
Mineral Records Of The Pyroxenites Formed Within Harzburgites (Ulaş, Sivas, Turkey): Implications On Petrogenesis And Tectonic Setting, Özgür Bi̇li̇ci̇, Hasan Kolayli
Turkish Journal of Earth Sciences
In this article, the petrological processes of the clinopyroxenite dykes and host peridotites occurring in Ulaş District (Sivas, mid-Anatolia, Turkey) are discussed. The new geochemical data from major minerals in the clinopyroxenite dykes and host harzburgites revealed differences to the supra-subduction zone (SSZ)-type pyroxenites and peridotites. In particular, the NiO content of olivines in the host harzburgites showed the signature of the mantle, whereas rare olivines of the clinopyroxenites had a NiO content and Fo number that were inferior to those of mantle peridotites. The high Mg-number of clinopyroxenes in the clinopyroxenites was likely associated with the partial remelting of …
Chemical Composition And Suitability Of Some Turkish Thermal Muds As Peloids, Muazzez Çeli̇k Karakaya, Necati̇ Karakaya
Chemical Composition And Suitability Of Some Turkish Thermal Muds As Peloids, Muazzez Çeli̇k Karakaya, Necati̇ Karakaya
Turkish Journal of Earth Sciences
Thermal muds have been used in many spas for the treatment of different diseases as well as to clean and beautify the skin and in different forms such as mud baths, masks, and cataplasms. Mineralogical and chemical compositions and the possible toxicity of the peloids were investigated and compared with some limits to determine whether they have any health benefits and potential applications for pelotherapeutic treatments. The studied peloid samples were collected from 19 spas in different parts of Turkey and they were classified as neutral to slightly alkaline, with a high electrical conductivity value that had a high chlorine …
An Analysis Of Centennial Wind Power Targets Of Turkey, Egemen Sulukan
An Analysis Of Centennial Wind Power Targets Of Turkey, Egemen Sulukan
Turkish Journal of Electrical Engineering and Computer Sciences
Wind power has become one of the cost-effective options for improving the energy mix, while the wind farm installations reach higher shares by new capacity additions in Turkey, similar to many other countries, in order to support the sustainable development targets. Various methodologies are implemented and applied for planning and optimizing energy systems of countries, taking into consideration the energy, economy, and ecology aspects as a whole. The objective of this paper is to demonstrate the implications of "2023 energy targets" policy in terms of wind power. A futuristic scenario was tailored and applied to a comprehensive energy model for …
Geochemistry Of Travertine Deposits In The Eastern Anatolia District: An Example Of The Karakoçan-Yoğunağaç (Elazığ) And Mazgirt-Dedebağ (Tunceli) Travertines, Turkey, Leyla Kalender, Özlem Özteki̇n Okan, Murat İnceöz, Bahatti̇n Çeti̇ndağ, Vesi̇le Yildirim
Geochemistry Of Travertine Deposits In The Eastern Anatolia District: An Example Of The Karakoçan-Yoğunağaç (Elazığ) And Mazgirt-Dedebağ (Tunceli) Travertines, Turkey, Leyla Kalender, Özlem Özteki̇n Okan, Murat İnceöz, Bahatti̇n Çeti̇ndağ, Vesi̇le Yildirim
Turkish Journal of Earth Sciences
The Karakoçan-Yoğunağaç (Elazığ) and Mazgirt-Dedebağ (Tunceli) travertines, which are related to thermal springs, are situated on the right-lateral strike-slip Karakoçan Fault Zone (KFZ) and left-lateral strike-slip Pamuklu Fault Zone (PFZ) in eastern Anatolia. The surface area of the travertines varies from m2 to km2. Morphologically, the travertines are classified as ridge, banded, and terrace types due to deposition in different ways, in the releasing/restraining bends of the KFZ and PFZ and on the segments of faults. The banded travertines were dated by U-series, and an age of 160,000 ± 76 years was determined in only one sample from the Mazgirt-Dedebağ …
Determining The Main Strand Of The Eskişehir Strike-Slip Fault Zone Using Subsidiary Structures And Seismicity: A Hypothesis Tested By Seismic Reflection Studies, Gürol Seyi̇toğlu, Gali̇p Berkan Ecevi̇toğlu, Bülent Kaypak, Yücel Güney, Muammer Tün, Korhan Esat, Uğur Avdan, Abi̇di̇n Temel, Alper Çabuk, Sevgi̇ Telsi̇z, Güzi̇n Gülsev Uyar Aldaş
Determining The Main Strand Of The Eskişehir Strike-Slip Fault Zone Using Subsidiary Structures And Seismicity: A Hypothesis Tested By Seismic Reflection Studies, Gürol Seyi̇toğlu, Gali̇p Berkan Ecevi̇toğlu, Bülent Kaypak, Yücel Güney, Muammer Tün, Korhan Esat, Uğur Avdan, Abi̇di̇n Temel, Alper Çabuk, Sevgi̇ Telsi̇z, Güzi̇n Gülsev Uyar Aldaş
Turkish Journal of Earth Sciences
The Eskişehir Fault Zone is one of the major neotectonic structures of Turkey, extending from İnegöl (Bursa) to Cihanbeyli (Konya). The fault zone presents a considerable seismic risk for the city of Eskişehir but the exact locations of active segments and the source of the major seismic event, the 1956 earthquake (M = 6.5) that occurred in the instrumental period (from 1900 to 2013), have been debated in recent literature. The structural data obtained from field studies indicate an approximately N60W-trending main strand of the right lateral strike-slip Eskişehir Fault Zone. This trend corresponds to the en echelon bends on …
Thuringian Affinity Of The Silurian?Lower Devonian Succession From The Eastern Taurus, Turkey, Valeri Sachanski, Hüseyi̇n Kozlu, Mehmet Cemal Göncüoğlu
Thuringian Affinity Of The Silurian?Lower Devonian Succession From The Eastern Taurus, Turkey, Valeri Sachanski, Hüseyi̇n Kozlu, Mehmet Cemal Göncüoğlu
Turkish Journal of Earth Sciences
The Silurian-Lower Devonian succession in the Değirmentaş-Halevikdere section (E Taurides) shows considerable lithostratigraphic similarities to the three-partite subdivision, initially documented in the same stratigraphic interval in Saxo-Thuringia and later in other peri-Gondwanan terrains. The Llandovery-Wenlockian part of the studied section (ca. 40 m) is characterized by black graptolitic shales. The Llandoverian part is dominated by radiolarian ribbon cherts (ca. 20 m). The Rhuddanian Akidograptus ascensus, Parakidograptus acuminatus, and Cystograptus vesiculosus biozones have been recognized in its lower part, while in the upper part of the succession, the lowermost Telychian Rastrites linnaei Biozone has been documented. The Telychian Spirograptus turriculatus and …
Petrography And Palynology Of Late Oligocene And Middle Miocene Coals In The Gelibolu Peninsula, Nw Turkey, Ferdi̇ Demi̇rtaş, Mustafa Bozcu, Erdal Koşun, Mehmet Serkan Akki̇raz
Petrography And Palynology Of Late Oligocene And Middle Miocene Coals In The Gelibolu Peninsula, Nw Turkey, Ferdi̇ Demi̇rtaş, Mustafa Bozcu, Erdal Koşun, Mehmet Serkan Akki̇raz
Turkish Journal of Earth Sciences
In this study, coal samples from two different coal zones located close to each other were examined. They occur in the Late Oligocene Osmancık and Miocene Gazhanedere formations in the Gelibolu peninsula, in the SW part of the Thrace Basin (NW Turkey). This paper focuses on the organic-petrographic composition and depositional conditions of the two coal zones by using coal petrography, including maceral ratios, and palynology. The maceral composition of the Oligocene coal samples is similar to that of the Miocene coal samples. The coal samples from both locations are characterized by a high content of huminite group macerals, ranging …
Toxic Element Contamination In Waters From The Massive Sulfide Deposits And Wastes Around Giresun, Turkey, Necati̇ Karakaya, Muazzez Çeli̇k Karakaya
Toxic Element Contamination In Waters From The Massive Sulfide Deposits And Wastes Around Giresun, Turkey, Necati̇ Karakaya, Muazzez Çeli̇k Karakaya
Turkish Journal of Earth Sciences
This study assessed the quality of water polluted with mine drainage waters, some of which is used for drinking and agriculture, in the urban areas of the Giresun region, Turkey. A total of 40 water samples were collected from the main rivers and stream, spring, and drainage waters. All samples were analyzed for physical and chemical parameters. The tectonically controlled massive sulfide deposits hosted in the Maastrichtian-Eocene magmatic rocks are either active or have been abandoned. The main ore mineral assemblages are chalcopyrite, sphalerite, galena, and pyrite. The oxidation of the sulfide minerals in the deposits and wastes has caused …
Bicoelia Corticifera, A New Inozoid Sponge From The Upper Triassic (Norian) Reef Boulders Of The Central Taurids (Southern Turkey), Baba Senowbari-Daryan, Michael Link
Bicoelia Corticifera, A New Inozoid Sponge From The Upper Triassic (Norian) Reef Boulders Of The Central Taurids (Southern Turkey), Baba Senowbari-Daryan, Michael Link
Turkish Journal of Earth Sciences
Upper Triassic Norian reef boulders, exposed in a locality in the Central Taurids, southern Turkey, yielded a high number of hypercalcified sponges, including Sphinctozoans, Inozoans, Spongiomorphids, and Chaetetids. The reef boulders are exposed near the fountain Tavuk Çeşme, located at the road leading from the town of Aksu to Yenişarbademli. Geologically this locality belongs to the Anamas Akseki Autochthon. In this paper a new inozoan sponge, Bicoelia corticifera nov. sp., is described from Tavuk Çeşme. It is a cylindrical and unbranched sponge, found in several thin sections. The sponge is characterized by 2 axial spongocoels, and the sponge wall is …
History, Development, And A New Concept Of Phthalocyanines In Turkey, Özer Bekaroğlu
History, Development, And A New Concept Of Phthalocyanines In Turkey, Özer Bekaroğlu
Turkish Journal of Chemistry
This paper reviews the history of phthalocyanines in Turkey. Phthalocyanines are chemical compounds that were accidently discovered nearly a century ago. The relevant research and articles have grown dramatically in Turkey since our first paper on them containing four [15]crown[5] published in 1986. The ball-type phthalocyanines were produced and published as a new concept in phthalocyanine chemistry for the first time by our group in Turkey in 2006. Unfortunately, with the exception of our work on this subject, almost no papers have been published in Turkey or in other countries since then. We strongly urge scientists to consider working on …
Emerging Multi-Proxy Records Of Late Quaternary Palaeoclimate Dynamics In Turkey And The Surrounding Region, Kathleen Nicoll, Ceren Küçükuysal
Emerging Multi-Proxy Records Of Late Quaternary Palaeoclimate Dynamics In Turkey And The Surrounding Region, Kathleen Nicoll, Ceren Küçükuysal
Turkish Journal of Earth Sciences
We present an overview of selected papers published since 2000 that interpret Late Quaternary multi-proxy palaeoclimate records from Turkey and the surrounding region of the Near-Middle East and Mediterranean region. Existing records in Turkey are rather limited in their resolution, and the locations studied thus far reflect a limited spatial and temporal distribution. Because Turkey is a very large country with numerous mountains that affect local weather conditions and create complex feedbacks, it is difficult to correlate trends across the broad landscape, and beyond. Published instrumental records are too short, and most palaeoclimate proxy records, including many lakes studied in …
Petrology, Geochemistry, And Evolution Of The Iron Skarns Along The Northern Contact Of The Eğrigöz Plutonic Complex, Western Anatolia, Turkey, Tolga Oyman, İsmet Özgenç, Murat Tokcaer, Mehmet Akbulut
Petrology, Geochemistry, And Evolution Of The Iron Skarns Along The Northern Contact Of The Eğrigöz Plutonic Complex, Western Anatolia, Turkey, Tolga Oyman, İsmet Özgenç, Murat Tokcaer, Mehmet Akbulut
Turkish Journal of Earth Sciences
The Çatak and Küreci skarn districts are located approximately 10 km NW of Emet (Kütahya) in Western Turkey. The skarn and associated ore formations mainly occur at the contact between intrusive rocks of the Eğrigöz Plutonic Complex (EPC) and calcareous pelitic schists with limestone lenses of the Sarıcasu Formation and meta-carbonate rocks of the Arıkaya Formation. The major, trace, and rare earth element analysis of the igneous rocks indicate that they are high level, subalkaline, calc-alkaline, peraluminous to metaluminous I-type intrusions, generated in a continental arc setting. Three distinct skarn-type mineralization, differing in their host rocks and distance from the …
Fluctuations Of Sea Water Temperature Based On Nannofloral Changes During The Middle To Late Miocene, Adana Basin, Turkey, Manolya Sinaci
Fluctuations Of Sea Water Temperature Based On Nannofloral Changes During The Middle To Late Miocene, Adana Basin, Turkey, Manolya Sinaci
Turkish Journal of Earth Sciences
Some nannoplankton species are sensitive to water temperatures. While Coccolithus pelagicus and Reticulofenestra gelida indicate cooler water conditions, the genera Discoaster and Sphenolithus and Calcidiscus leptoporus are indicative of warmer water environments. This paper focuses on relative fluctuation of sea water temperatures during the Middle and Late Miocene, emphasised by cold and warm nannofossil changes in abundance in 2 wells. At the A-1 well in the Middle Miocene, the total abundance of cooler water species is 45%, while that of the warmer species is 3%. During the Late Miocene, the total abundance for cooler water species decreases to 34%; in …
An Avalanche Hazard Model For Bitlis Province, Turkey, Using Gis Based Multicriteria Decision Analysis, Levent Selçuk
An Avalanche Hazard Model For Bitlis Province, Turkey, Using Gis Based Multicriteria Decision Analysis, Levent Selçuk
Turkish Journal of Earth Sciences
Most avalanche fatalities in Turkey have occurred in Bitlis Province. The scope of this research was to identify the avalanche hazard area of that province, using geographical information system (GIS) based multicriteria decision analysis (MCDA) and to evaluate it by means of sensitivity and accuracy analysis. The model consists of 5 GIS layers: elevation, slope, aspect, vegetation density, and land use. The hazard model is obtained by using a comparison matrix where all identified criteria of GIS layers are compared against each other. The acceptability of the model was determined using historical events. All of these events plotted over the …
The Geochemistry And Petrology Of The Ophiolitic Rocks From The Kahramanmaraş Region, Southern Turkey, Utku Bağci
The Geochemistry And Petrology Of The Ophiolitic Rocks From The Kahramanmaraş Region, Southern Turkey, Utku Bağci
Turkish Journal of Earth Sciences
The regionally important dismembered ophiolitic sequence from the southern Kahramanmaraş region, located along the Arabian-Eurasian collision zone in southeastern Turkey, contains harzburgitic tectonites, ultramafic to mafic cumulates, isotropic gabbros and ophiolite-related metamorphic rocks. The ultramafic-mafic cumulate rocks are composed of wehrlite, lherzolite, olivine websterite, olivine gabbronorite, olivine gabbro and gabbro. The crystallization order of the cumulus phases, the presence of high Ca-plagioclase (An_{83-94}), highly magnesian clinopyroxene (Mg#_{78-93}), olivine (Mg#_{71-91}) and their coexistence in the ultramafic-mafic cumulate rocks indicate a suprasubduction zone (SSZ) environment and suggest that the cumulates were derived from an island arc tholeiitic (IAT) magma. The isotropic gabbros …