In addition to karstic systems, the widely observed alluvial systems are another important water resource in many To assess the recharge mechanism of groundwater in karstic
A main objective of this vulnerability technique is Protective cover, and infiltration ratio and karst network Includes several hydrogeological parameters such as epikarst, A karstic aquifer vulnerability assessment technique (EPIK) is widely used to determine karst protection Several studies areĬonducted to determine the vulnerability of karstic aquifers Therefore, such aquifer systems should be protectedįrom waste disposal activities due to absence of a protective cover and retarding mechanisms. Occur in complex conduit systems under relatively high flow Flow of groundwaterĪnd transport of contaminants in karstic aquifers mainly
Transport of theĬontaminants is very rapid in such fractured zones whenĬompared to granular aquifer system. Or open karst fractures (Vesper et al., 2000). Contaminants from the karstic surfaces easilyįind their way in to karstic aquifers through dolins, ponors Hole) are used for waste disposal in some countries (Kacaroglu, 1999).
Some karstic features such as dolins and ponors (shallow That form important aquifers are very vulnerable to contamination and are easily contaminated if no precautionary In this regard,Ĭarbonate rocks such as marble, limestone and dolomite The quality of important water resources. Therefore, contaminants in karstic aquifer systems can be transported rapidly and can influence Is continuously dissolved by circulating groundwater, frac*Corresponding author: and fissures are formed creating primary porosity for The permeability ofĬarbonate rocks arises primarily from the enlargement of KarstĪquifers typically exhibit complex and unique geologicalĪnd hydrogeological characteristics. Karstic and alluvial systems are main aquifer materialsĪround the world and many communities supply their drinking and irrigation water demand from these aquifers. Key words: ancient quarries, karstic terrain, sewage and waste disposal, Samplesįrom wells down gradient of the wastewater source had comparatively higher Na, K and Cl concentrations. B ased on chemical analyses results, the wastewater was Na-Cl water type and contained high concentrations Unit and thereby affecting groundwater quality around theĪntique quarries. The highly fractured structure of the Iznik marble, the wastewater in the quarries was able to move rapidly within the rock.Īnalyses of groundwater samples revealed that the wastewaterįlowing in the marble unit discharges eventually into the alluvial Hydrogeological features, the Iznik marble and alluvium unitsĬonstitute the main aquifer system in the study area. Wastewaterįrom the city of Iznik and surrounding residential areas was disposed in three of these ancient marble quarries. Iznik marble was used as a natural construction material in theĪrea since in the Roman era, 20 ancient marble quarries in different sizes existed in and around the study area. Graphite schist, muscovite-quartz schist and marble lenses. In terms of geological features, Derekoy metamorphics are basement rocks that consist of This study is aimed at investigating the hydrogeological and hydrogeochemical properties of Iznik plain with There are number of ancient marble pits in the area, some of which are used as sewage and solid } Department of Environmental Engineering, Dokuz Eylul University, Izmir 35160, TurkeyĪBSTRACT: This study is conducted in Iznik, a city situated in Waste disposal on karstic terrain: a case study from the ancient marbleĭepartment of Drilling, Torbali Technical Vocational School of Higher, Dokuz Eylul University,ĭepartment of Geological Engineering, Dokuz Eylul University, Izmir 35160, Turkey Ⓒ The Association of Korean Geoscience Societies and Springer 2011
0 kommentar(er)
