Volume 3, Number 4 (6-2014)                   DEEJ 2014, 3(4): 43-56 | Back to browse issues page

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The purpose of this research is the investigation of Kashan aquifer situation, the depth of bed rock, thickness of aquifer saturation layer, boundary of salt water and the investigation of sediment permeability in Kashan plain using electric resistance with Schlumberger arrangement. In this study, 41 Latitudinal profiles and 1 longitudinal profile were used in order to evaluate aquifer situation using Geo-electric method. Based on the results obtained and using Arc-GIS software, harvested points were drawn as maps of apparent special resistance for flow lines of 300, 400, 600, 800 and 1000 m, maps of absolute elevation for bed rock, maps of iso-thickness, maps of saltwater boundary with respect to the relative quality of groundwater. Then for all profiles, pseudo-sections were mapped using Arc-Hydro-Groundwater extension. Finally, the results showed that aquifer qualitative situation is acceptable only in parts of western, southwest and to some extent northwest parts and in other points reduced water quality. Also, the results obtained from map of saltwater boundary showed that eastern half of the aquifer is brackish to saline due to aquifer hydraulic gradient. Changes of hydraulic gradient are leading to saltwater intrusion in aquifer especially in northeast parts.

Type of Study: Applicable | Subject: Special
Received: 2013/07/27 | Accepted: 2014/02/20 | Published: 2014/06/20

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