Yazar "Demir, Yılmaz" için listeleme
-
Dağbaşı skarn yataklarının jeolojik, mineralojik ve jeokimyasal özellikleri (Araklı-Trabzon, KD Türkiye)
Demir, Yılmaz (2019)Dağbaşı skarn cevherleri Üst Kretase yaşlı Dağbaşı granitoyidi ile Liyas volkanitleri içindeki Berdiga formasyonuna ait kireçtaşı blok ve merceklerinin granitoyide en yakın olduğu zonlar boyunca ekzoskarn tipte gelişmiştir. ... -
Fluid evolution of the Fe-Zn skarn deposits in the Çiftehan (Ulukışla-Niğde) area, south-central Turkey
Sunkari, Emmanuel Daanoba; Lermi, Abdurrahman; Demir, Yılmaz (Springer, 2023)This study investigated the compositional variations of fluid inclusions in the different stages of mineralization at the Esendemirtepe and Horoz Fe-Zn skarns, south-central Turkey. The skarn zones in the study area consist ... -
Fluid inclusion and stable isotope constraints (C, O, H) on the Dagbasi Fe-Cu-Zn skarn mineralization (Trabzon, NE Turkey)
Demir, Yılmaz; Dişli, Ali (Elsevier, 2020)The Dagbasi Fe-Cu-Zn skarn mineralization developed along the contact between the block and lens shaped limestones of the Lower Cretaceous Berdiga Formation and the Upper Cretaceous Dagbasi Granitoid. the exoskam-type ... -
Genesis and geodynamic significance of chromitites from the Orhaneli and Harmancik ophiolites (Bursa, NW Turkey) as evidenced by mineralogical and compositional data
Uysal, İbrahim; Akmaz, Recep Melih; Kapsiotis, Argyrios; Demir, Yılmaz; Saka, Samet; Avcı, Erdi; Mueller, Dirk (Elsevier, 2015)Chromitites from Orhaneli and Harmancik ophiolites (Bursa, NW Turkey) are mainly associated with dunites. They occur as banded and lenticular bodies showing massive and disseminated textures and are composed of magnesiochromite ... -
Geochemistry of the Lake Sediments on Robert Island, South Shetland Islands, Antarctica: implications for weathering processes in Polar areas
Özyurt, Merve; Demir, Yılmaz; Özkan, Korhan; Kandemir, Raif (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, fluid inclusion and stable isotope constraints (C and O) of the Sivrikaya Fe-skarn mineralization (Rize, NE Turkey)
Demir, Yılmaz; Uysal, İbrahim; Kandemir, Raif; Jauss, Andrea (Elsevier Science Bv, 2017)The Sivrikaya Fe-skarn mineralization is hosted by dolomitic limestone layers of Late Cretaceous volcano-sedimentary unit, comprised of andesite, basalt and their pyroclastites, including, sandstone, shale and dolomitic ... -
Geological, mineralogical and geochemical properties of the Dagbast skarn ores (Arakh-Trabzon, NE Turkey)
Demir, Yılmaz (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
Yavuz, Hikmet; Demir, Yılmaz; Kasapçı, Cem; Uysal, İbrahim; Helvacı, Cahit (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 ... -
Large Fe-Mn oncoids from Early Jurassic Ammonitico Rosso Facies (eastern Sakarya Zone, NE Turkey): new insight into palaeogeographic conditions of Tethys Ocean
Kandemir, Raif; Özyurt, Merve; Demir, Yılmaz; Karslı, Orhan (Taylor & Francis Ltd., 2024)Oncoids, significant sedimentary structures within the Jurassic strata of the Mediterranean Region,serve as valuable indicators of paleoenvironmental conditions during their formation. One of theimportant examples of oncoids ... -
Mechanical and radiation attenuation properties of conventional and heavy concrete with diverse aggregate and water/cement ratios
Ustabaş, İlker; Demirci, Mustafa; Baltaş, Hasan; Demir, Yılmaz; Erdoğdu, Şakir; Kurt, Zafer; Çakmak, Talip (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 ... -
Mineral chemical investigation on sulfide mineralization of the Istala deposit, Gumushane, NE-Turkey
Demir, Yılmaz; Uysal, İbrahim; Sadıklar, Münür Burhan (Elsevier Science Bv, 2013)The mineralogy of the Istala deposit, Gumushane, northeastern Turkey, was studied in detail, and a geochemical investigation was carried out using electron probe micro-analysis (EPMA). Sphalerite, galena, chalcopyrite and ... -
Mineralogy, mineral chemistry, fluid inclusion, and stable isotope investigations of the Kabaduz ore veins, Ordu, NE-Turkey
Demir, Yılmaz; Uysal, İbrahim; Sadıklar, M. Burhan; Ceriani, Andrea; Hanilçi, Nurullah; Mueller, Dirk (Elsevier, 2015)Hydrothermal vein-type deposits of the Kabaduz region (Ordu, NE-Turkey) are located in Upper Cretaceous andesitic-basaltic rocks and were formed in fault zones along NW-SE direction lines, with thicknesses varying between ... -
Mineralogy, ore genesis and zircon U[sbnd]Pb age characteristics of the Cerattepe Cu[sbnd]Au (±Zn) deposit (Artvin, NE Turkey)
Akpınar, İbrahim; Demir, Yılmaz; Aysal, Namık; Hanilçi, Nurullah; Deniz, Kıymet; Kadıoğlu, Yusuf Kaan; Yates, Martin; Çiftçi, Emin (Elsevier, 2024)The Cerattepe deposit is associated with bimodal felsic volcanics of the Kızılkaya Formation, which hosts the majority of VMS deposits in the Eastern Pontide Orogenic Belt. Pyrite, chalcopyrite, sphalerite, and bornite are ... -
The petrogenesis of analcime in the coppermine formation on Robert Island, South Shetland ıslands, Antarctica
Kandemir, Raif; Demir, Yılmaz; Şen, Cüneyt; Yağcıoğlu, Ufuk Celal (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 ... -
Recently-discovered Bahçecik Au±Ag mineralization in the Eastern Pontides, Gümüşhane-NE Türkiye: geological and geochemical implications on the intermediate sulfidation epithermal deposit
Revan, Mustafa Kemal; Demir, Yılmaz; Uysal, İ̇brahim; Özkan, Mustafa; Dumanlılar, Özcan; Şen, Cüneyt; Kara, Rasim Taylan; Hamzaçebİ, Semi; Göç, Deniz; Müller, Dirk; Tokoğlu, Mustafa (Taylor & Francis Ltd., 2023)Intermediate sulfidation epithermal deposits represent significant reservoirs of precious metals, playing a crucial role in global mining operations. The Anatolian Peninsula, predominantly characterized by relatively young ...
