Yazar "Eker, Cigdem Saydam" için listeleme
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Comparison of sandstone and mudstone with different methods for assessing toxic element contamination in the Early-Middle Jurassic sediments of Gumuhane (NE Turkey)
Eker, Cigdem Saydam; Ari, Ugur Volkan (Springer, 2020)To investigate the vertical changes of toxic elements in Jurassic sediments, sampling was performed in four sites. Samples were collected from sandstones and mudstones/marls and analyzed for some toxic elements (Cu, Pb, ... -
Concentrations of elements in Lias coals from the eastern Black Sea Region, NE-Turkey
Eker, Cigdem Saydam; Akpinar, Ibrahim; Sipahi, Ferkan; Yapici, Ejder (Taylor & Francis Inc, 2016)The element contents and organic matter-element relation between Lias-aged coals exposed in four fields in Gumushane and Bayburt were investigated. In general, fixed carbon and gross calorific values of the Edire and ... -
Evaluation of potentially toxic element contents and Pb isotopic compositions in Ankara Stream sediments within an urban catchment in central Turkey
Eker, Cigdem Saydam; Sipahi, Ferkan; Ozkan, Ozay; Gumus, Mustafa Kemal (Springer, 2017)This study aimed to interpret the spatial distribution, enrichment factor (EF), and geo-accumulation of potentially toxic elements in the bed sediments (ASBS) and Pleistocene-aged overbank sediments (ASOS) of the Ankara ... -
Formation of the Egrikar (Gumushane) Fe-Cu skarn type mineralization in NE Turkey: U-Pb zircon age, lithogeochemistry, mineral chemistry, fluid inclusion, and O-H-C-S isotopic compositions
Sipahi, Ferkan; Akpinar, Ibrahim; Eker, Cigdem Saydam; Kaygusuz, Abdullah; Vural, Alaaddin; Yilmaz, Meltem (Elsevier Science Bv, 2017)The Egrikar Fe-Cu skarn type mineralization is located approximately 100 km NW of Gumuhane in NE Turkey. Geochemical analyses of diorite, which is thought to cause skarn, indicate medium K calc-alkaline (1.3 to similar to ... -
Geochemical and isotopic characteristics of stream and terrace sediments of the Harsit Stream, NE Turkey
Eker, Cigdem Saydam (Geological Soc Publ House, 2017)The current study compares and contrasts the elemental concentrations and the Nd, Sr and O isotopic compositions of sediments collected from the Harsit Stream bed sediments (HSBS) and terrace sediments (HSTS). There are ... -
Geochemical composition of magnetite from different iron skarn mineralizations in NE Turkey: implication for source of ore-forming fluids
Sipahi, Ferkan; Gucer, Mehmet Ali; Eker, Cigdem Saydam (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 ... -
Geochemistry and Pb isotopic proof for sources of heavy metal(loid)s in Late Cretaceous sandstones from Eastern Pontides (NE Turkey)
Eker, Cigdem Saydam (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 the Middle Jurassic sediments in Gumushane, north-eastern Turkey: Implications for weathering and provenance
Eker, Cigdem Saydam; Ari, Ugur V. (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 ... -
Mineralogy and whole rock geochemistry of late Cretaceous sandstones from the eastern Pontides (NE Turkey)
Eker, Cigdem Saydam; Korkmaz, Sadettin (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 ... -
Petrography and geochemistry of Eocene sandstones from eastern Pontides (NE TURKEY): Implications for source area weathering, provenance and tectonic setting
Eker, Cigdem Saydam (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 ... -
Trace and rare earth elements as indicators of provenance and depositional environments of Lias cherts in Gumushane, NE Turkey
Eker, Cigdem Saydam; Sipahi, Ferkan; Kaygusuz, Abdullah (Elsevier Gmbh, Urban & Fischer Verlag, 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 ... -
Tracing provenance and chemical weathering changes in Ankara Stream sediments, central Turkey: Geochemical and Sr-Nd-Pb-O isotopic evidence
Eker, Cigdem Saydam; Sipahi, Ferkan; Gumus, Mustafa Kemal; Ozkan, Ozay (Pergamon-Elsevier Science Ltd, 2018)This study aims to analyze the changes in sediment provenance through the geochemical and Sr-Nd-Pb -O isotopic composition of the Ankara Stream bed and overbank sediments (ASBS and ASOS) and to examine the weathering and ...
