Yazar "Ates, Ozkan" seçeneğine göre listele

Listeleniyor 1 - 4 / 4
  • [ X ]
    Öğe
    FEASIBILITY STUDY OF THE KOCABASLAR GEOTHERMAL FIELD (LAPSEKI/CANAKKALE/TURKEY)
    (Stef92 Technology Ltd, 2016) Deniz, Ozan; Bozcu, Mustafa; Ates, Ozkan
    The aim of this study is to research geothermal potential of the Kocabaslar hot spring. Geological, hydrogeological and geophysical investigations were conducted related to topic around the hot spring. Lithological units which composed of Eocene volcanics, Eocene sedimentary rocks and Quaternary alluvium were determined in the geological study. There are many tectonic lines in the region. Kocabaslar hot spring flows up through approximately E-W trending normal fault zone. Hydrogeological field measurements show that discharge, temperature, electrical conductivity, Eh and ph values of this hot spring are 0.5 L/s, 36 degrees C, 1212 microS/cm, 67 mV and 7.8, respectively, Electrical conductivity, discharge and temperature values are low. According to the chemical analysis results of samples taken from the hot and cold groundwater in the field, geothermal water is Na-Ca-SO4-HCO3 type and cold water generally Ca-Mg-HCO3-CO3 type. Thermal water is mixing with highly cold groundwater along the flow path. Results of isotope analysis (Oxygene-18, Deuterium and Tritium) show that this thermal water is at least older than 40 years and meteoric origin. Geophysical measurements (resistivity and induced polarization (IP) methods) were carried out along the 5 lines. Resistivity and chargeability cross sections were prepared using the inverse solution techniques. These cross sections and other data indicate that geothermal fluid may occur in the particular points and depths. There is any geothermal well drilled in this site before. Because of this reason there is a little knowledge about the geothermal potential of the geological units. It is suitable narrow drilling at least one point to research and develop of this geothermal field.
  • [ X ]
    Öğe
    Geology and Hydrogeochemistry of Gure (Balikesir) Geothermal Field and its Relationship with Active Tectonic
    (Tmmob Jeoloji Muhendisleri Odasi, 2017) Kacar, Belgin; Özden, Süha; Ates, Ozkan
    Gure geothermal field is located in NW Anatolia within the boundaries of Balikesir. This study attempts to determine the geologic and hydrogeochemical characteristics of the field and close surroundings and their correlation with active tectonism. The basement of Gure geothermal field is rocks of the Paleozoic-age Kazdag Group. Above the basement, the Triassic-age Karakaya Formation lies above an unconformity. The Cretaceous cetmi melange tectonically overlies this basement. The Upper Oligocene-Lower Miocene Hallaclar volcanics and Oligo-Miocene granodiorites were emplaced by cutting all older units. Quaternary alluvium unconformably overlies all units in the study area. The Gure geothermal field located on the east section of the Edremit Fault Zone, marked as an active fault on the Active Fault Map of Turkey, is controlled by a nearly ENE-WSW oriented, south-dipping normal fault. In the instrumental period from September 2013 to August 2014, nearly 12 earthquakes occurred in this region and close surroundings with M=3.0 or more. Geothermal water from four hot-water wells in the Gure goethermal field had monitoring studies performed in 12 different periods, from 21.09.2013-16.08.2014. Physicochemical measurements and experimental studies of water from Gure geothermal field were compared simultaneous to earthquakes in the region. Before and after earthquakes changes were observed in these thermal waters, especially 7 degrees C, pH and EC values. Additionally chemical analysis of the water identified increases or reductions in many elemental levels, especially Cl, Na+ and SO4-2. It was concluded that these variations were directly related to the active tectonic regime in the region.
  • [ X ]
    Öğe
    Hydrochemical Changes in Geothermal Systems with Simav(Kutahya) Earthquakes
    (Tmmob Jeoloji Muhendisleri Odasi, 2014) Ates, Ozkan; Tutkun, Salih Zeki
    Many geothermal fields in Kutahya including Eynal, Citgol ve Nasa (Simav), Ilicasu-Abide (Gediz), Muratdagi, Yoncali, Emet, Yenicekoy, Dereli, Gobel, Ilica (Harlek), Sefakoy ve Hamamkoy (Hisarcik) and Saphane are located between Kutahya and Simav active faults in Western Turkey. Studied area in Simav (Kutahya) is situated in the north of Simav Fault and indicated as an active fault zone in the active fault maps of Turkey. This area is fairly active region in terms of earthquakes occurred in the instrumental period and has many geothermal systems. Most of these geothermal fields are located on active fault zones. Approximately 735 earthquakes (M>3.0) occurred between May 2010 to May 2013, including 1 earthquake with the magnitude of greater than 6.0 at Gediz in 1970 and 4 earthquakes with the magnitude of greater than 5.0 at Simav in 2009, 2011 and 2012. Data from a monitoring study during three years (2010-2013) from thermal springs in Eynal, Citgol ve Nasa geothermal fields which located at Simav (Kutahya) were used in this study. This study tried to find out relationship between geothermal springs and active faults, and relationship between hydrochemical features of geothermal waters and high seismic activity. The results of this study indicated that some physic-chemical parameters of geothermal waters change especially increasing temperature, increasing Cl-ion value and decreasing SO4-2 ion value with earthquakes with has 5.0 and greater magnitude value.
  • [ X ]
    Öğe
    Late Cenozoic Stress States along the Ganos Fault, NW Turkey
    (Tmmob Jeoloji Muhendisleri Odasi, 2013) Yildiz, Seray Cinar; Özden, Süha; Tutkun, Salih Zeki; Ates, Ozkan; Poyraz, Selda Altuncu; Yesilyurt, Sevinc Kapan; Karaca, Oznur
    The Ganos Fault, has a big earthquake (Ms:7.3 in 1912), as a right-lateral strike-slip fault, a segment of the northern strand of the North Anatolian Fault is elongated a N70 degrees E trend in west of the Marmara Sea between Gazikoy (Tekirdag) and Saros Gulf This study reveals at late Cenozoic stress states by the limit kinematic analysis, inversion of the earthqukes focal mechanism and remote sensing studies' along the Ganos Fault. Result of the kinematics' analysis was carried out a main tectonic regime.. First mainly strike-slip faulting developed under NW-SE trending compressional direction showing by a (sigma(1)) 130 degrees +/- 16 degrees and a (sigma(3)) 53 degrees+13 degrees trends and Rm ration calculated as 0.49. Secondly and consistent with first faulting, a NE-SW trending concurrent extensional direvtion produce a local normal faulting presented by a (sigma(3)) 28 degrees +/- 18 degrees trend in horizontal plane. Furthermore, between 2003 and 2010 years, bigger than M=3.3,12 earthquakes on Ganos Fault and its vicinity, determined the focal mechanisms and inversion analysis results indicate that a strike-slip faulting is active along the fault. In the inversion of the earthquakes, a strike-sliplhulting presented a (sigma(1)) N 2760 degrees +/- 7 degrees and (sigma(3)) N 6 degrees +/- 6 degrees trends and Rm ration calculated as 0.44. This result is consistent with the results of fault kinematic analysis and offer as a transtensional character along the fault. According to rose diagram that was generated by remote sensing lineament analysis. Determined 223 lianements have mainly parallel to the Ganos Fault. The stress states,from remote sensing studies are consistent both fault kinematic analysis and inversion of the earthquakes filocal mechanism results. Ganos Fault is an active strike-slip fault by the transtensional character since Late Pliocene.