Characterization of aquifer system using Electrical Resistivity Tomography (ERT) and Induced Polarisation (IP) techniques

Akhtar, N. and Mislan, M.S. and Syakir, M.I. and Anees, Mohd Talha and Yusuff, M.S.M. (2021) Characterization of aquifer system using Electrical Resistivity Tomography (ERT) and Induced Polarisation (IP) techniques. In: 4th International Conference on Science and Technology Applications in Climate Change, STACLIM 2021, 1 July 2021 - 2 July 2021, Selangor, Virtual.

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Abstract

Groundwater plays a major role as an alternative freshwater resource for irrigation and industrial purposes. This study aimed to characterize the subsurface of aquifer systems in TelukIntan district, Perak, Malaysia using Electrical Resistivity Tomography (ERT) and Induced Polarization (IP) methods. The horizontal profiling (TL1 and TL2) was conducted at length of 400 m. The estimated depth is 150 m below ground level (b.g.l.). An ABEM SAS 4000 Terrameter and ABEM LUND ES464 Imaging System were applied to create a resistivity pseudo-section using polar-dipole configuration. The collected geo-electrical data was interpreted using RESIST software with partial curve matching and computer iteration. ERT and IP survey profile results were validated with in-situ borehole data from borehole 2 (B2). Eleven samples of soil profile were collected at depth from 5.6 m to 61.2 m, with average percentage of sand, silt and clay are 93.77 , 5.78 and 0.02 , respectively. The geology of subsurface settings is the key factor in determining the aquifer system characterized by interlayer sand-silt sequence indicating the saturation zone of aquifer underlain by shale at the bottom. Further study on hydraulics perspective is important to understand the overall capacity of the aquifer. © Published under licence by IOP Publishing Ltd.

Item Type: Conference or Workshop Item (Paper)
Funders: None
Uncontrolled Keywords: Aaquifer system; Electrical resistivity tomography; ERT; Induced Polarisation; IP
Subjects: Q Science > QE Geology
Divisions: Faculty of Science > Department of Geology
Depositing User: Ms Zaharah Ramly
Date Deposited: 04 Oct 2023 02:57
Last Modified: 04 Oct 2023 02:57
URI: http://eprints.um.edu.my/id/eprint/35432

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