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    Determination of heavy metals in soils around Afsin-Elbistan Thermal Power Plant (Kahramanmaras, Turkey)
    (ASIAN JOURNAL OF CHEMISTRY, 2008) Tumuklu, Ali; Ciflikli, Murat; Ozgur, F. Zafer
    In this study, heavy metal (V, Ti, Cr, Mn, Ni, Cu, Zn, As, Sn, Al, Mg and Fe) pollution of the soils around Afsin-Elbistan Thermal Power Plant have been investigated. When the average values of the 21 analysis results were compared with the crystal values, V:1.03. Ti:0.64, Cr:3.51, Mn:1.02, Ni:6.48, Cu:3.31, Zn:1.56, As:3.09, Sn:0.51, A:0.71, Mg:1.25 and Fe:1.25 values were determined. According to these comparisons, the exchange rates in the study area are as follows: Ni > Cr > Cu > As > Mg and Fe > Zn. According to the relationships between distance and sampling locations of the samples (sample numbers 1-16) collected through a line from the area between power plant and Afsin district, distances (km) where the elements were determined in their maximum values are as follows: Ni:3, Mg:3, Cr:5, Ti:8 Mn:8, Cu:8, Fe:9. V:9. Zn:9, As:9. Sn:14 and Al:15. According to the results of XRD whole rock analysis, mineral associations found as clay, calcite, quartz, feldspar, mica, hematite and rarely clinoptilolite and opal-CT. Clay mineral assemblages are montmorillonite, illite, kaolinite, notronite and halloysite.
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    Structural-geological problems in GumuAYler archeological site and monastery
    (SPRINGER, 2015) Korkanc, Mustafa; Tugrul, Atiye; Savran, Ahmet; Ozgur, F. Zafer
    There are many underground settlings opened in historical times in Cappadocia region and the Gumusler Monastery is one of these. The monastery is a rock monastery church located in approximately 8 km northeast of Nigde. The most important characteristics of the monastery dated in 11th century ac are that it is an important settlement and touristic area that contains the most preserved frescoes in Cappadocia region. For this purpose, were determined the geological features of the observed units in the areas where the monastery is located and the surroundings were determined. Engineering geological problems are mentioned for the negative effects of the discontinuities especially in the monastery part. During field studies, stones with different color and textural characteristics were taken into account and sampling was carried out from four different levels. On representative samples, laboratory studies were conducted for determining the mineralogical, chemical, and petrographic and geomechanical properties. Underground cavities in the region were opened in the lower part of the KA +/- zA +/- lkaya ignimbrite which has relatively more rock fragments. Higher amount of rock fragments in the lower part makes this level easier to cave in. Low welding rate of the rock is believed to be the cause of having relatively low values of engineering properties of the lower levels of examined ignimbrites. Ignimbrites in these levels are more sensitive against atmospheric conditions than those in the upper levels. This study is the first study to determine engineering geology problems in the GumuAYler archeological area and provide data to planned conservation measures.
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    Toxic gas emissions from the Kayseri peat deposit, central Anatolia, Turkey
    (INDIAN ACAD SCIENCES, 2012) Sener, Mehmet; Korkanc, Mustafa; Sener, M. Furkan; Korkanc, Selma Yasar; Ozgur, F. Zafer
    Toxic gases evolving from the soil in urbanized peatland regions constitute a serious hazard since buildings may be subject to the direct ingress of volatiles into the structures. Peat formed in swamp and rarely exposed to subaerial conditions has been associated with the development of the folded foreland of the Quaternary Kayseri pull-apart basin. The peat deposit is extensively urbanized but so far no studies have evaluated the extent of the ground gas hazard. In this paper, the geology, petrography and chemical variation of the Kayseri peat deposit have been studied in order to predict the public health risk from the land gases' behaviour, especially in soil gases. The main volatile species detected are methane (CH4), hydrogen sulphide (H2S) and carbon dioxide (CO2), all of which are highly toxic. The primary means of gas entry is directly from the ground through the floors, walls, and especially subsurface telephone cable pipes. Indoor vents emit 1000-70,000 ppm CH4, 330-49,000 ppm CO2 and 3.8-6.5 ppm H2S in soil and subsurface pipes; concentrations high enough to present an acute respiratory hazard to persons close to the vents.