Unusual hydrogeology of Asmari formation in Kamarderaz anticline, Izeh

Authors

1 Department of Geology, Shahid Beheshti University

2 Department of Geology,Tarbiat Moallem University

3 Khuzestan Water and Power Company

Abstract

In order to study the unusual function, hydrodynamic behavior and hydraulic properties of the Asmari formation in Kamarderaz Karst aquifer, south west Izeh,  time series analysis was applied to the precipitation, Halaijan spring discharge and the piezometric head data. The flow system was simulated using an equivalent porous media model. Time series analysis included autocorrelation, spectral density, cross-correlation, cross-amplitude, and coherency function. A hydrogeological model for Kamarderaz karst aquifer was developed, which yields information on relevant parameters such as groundwater recharge and underground latteral inflow, to estimate discharge of Halaijan spring. The Collected information was synthesized in a finite difference numerical model, MODFLOW, and the transient-state flow was calibrated under pre-development conditions assuming an equivalent porous medium approach. Results obtained through analysis of the piezometric head and the spring hydrograph data showed that the Asmari karst system of Kamarderaz Anticline has a base flow regime in the large storage capacity of rock matrix. Although the karstic nature of the limestone aquifer the equivalent porous medium flow model is appropriate to represent hydraulic heads and recharge/discharge relationships.
 

Keywords


معاونت مطالعات پایه و طرح های جامع منابع آب خوزستان، 1388، گزارش آماربرداری ماهانه منابع آب، سازمان آب و برق خوزستان.
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