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  • Springer  (2)
  • 1
    ISSN: 1432-0495
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract The study area is situated within the complex structure and karst system of the western Taurids. Basinwide interpretation of the structural features, each of which has great importance, will enlighten many complicated hydrogeologic problems encountered in the area. Thus, considering the previous views on the structural geology of the area, an interpretation of the structural and tectonic features of the study area by means of satellite images was undertaken, and based on the data gained, new approaches were suggested to solve the hydrogeological problems. In particular, determination of the recharge-discharge mechanisms of the Olukköprü and Dumanli karst springs, which are the most important karst groundwater discharge points in the region, has been attempted. Within the framework of this study, a tectonic-lineament map of a large area covering Eğirdir, Beyşehir, and Suğla lakes at the north and the basins to the south of these lakes was prepared.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1435-0157
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Description / Table of Contents: Les données hydrochimiques et sur la qualité de l'eau (sauf la microbiologie) ont été tirées d'un suivi pendant deux ans; les résultats des analyses indiquent que la plus forte pollution de l'eau souterraine est observée dans les parties centrale et orientale de la ville d' Eskişehir. La dégradation de la qualité de l'eau souterraine en dehors de la zone urbaine est due aux activités agricoles. La pollution de l'eau souterraine la plus grave dans la plaine d'Eskişehir est due aux composés azotés (ammoniaque, nitrite et nitrate). Les concentrations en ammoniaque, en nitrite et en nitrate des 51 puits siuvis sont respectivement comprises entre 0.01 et 1.65 mg/L, 0.01 et 1.80 mg/L, et 1.1 à 257.0 mg/L. Les concentrations en orthophosphate de l'eau souterraine varient entre 0.01 et 1,25 mg/L. Des variations saisonnières considérables de la qualité de l'eau souterraine ont été observées. En général, la qualité de l'eau souterraine est meilleure en saison humide qu'en saison sèche.
    Abstract: Los datos de hidroquímica y de calidad del agua (excepto biológica), obtenidos a raíz de un programa de muestreo y análisis de dos años de duración, indican que las concentraciones mayores de contaminantes aparecen en las zonas central y este de la ciudad. La degradación en la calidad del agua subterránea en el exterior del núcleo urbano está asociada a las actividades agrícolas. La contaminación más importante en el llano de Eskişehir es por componentes nitrogenados (amonio, nitrito, nitrato). Las concentraciones de amonio, nitrito y nitrato de los 51 pozos muestreados oscilan entre 0.01–1.65 mg/L, 0.01–1.80 mg/L y 1.1–257.0 mg/L, respectivamente. Las concentrationes de ortofosfato en el agua subterránea oscilan entre 0.01–1.25 mg/L. Se observó también una gran variación estacional en la calidad de estas agua. En general, la calidad de las mismas en épocas húmedas es mejor que en épocas secas.
    Notes: Hydrochemical and water-quality (except biological) data obtained through a two-year sampling and analysis program indicate that the highest concentrations of groundwater pollution occur in the central and eastern parts of Eskişehir city. Groundwater quality degradation outside the urban area results from agricultural activities. The most serious pollution of groundwater in the Eskişehir plain is from nitrogen compounds (ammonia, nitrite, and nitrate). The concentrations of ammonia, nitrite, and nitrate of the 51 surveyed water wells range from 0.01–1.65 mg/L, 0.01–1.80 mg/L, and 1.1–257.0 mg/L, respectively. Orthophosphate concentrations in groundwater range from 0.01–1.25 mg/L. Considerable seasonal fluctuation in the groundwater quality was observed. In general, the groundwater quality in wet seasons was better than the quality in dry seasons.
    Type of Medium: Electronic Resource
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