Innovative 3D ERT/IP Applications for Characterizing Clastic Sediments in The Proposed Delopa Tourism Project, Erbil, Kurdistan Region-Iraq

Gardi, Sirwa Qader; Baban, Ezzadin; Aziz, Bakhtiar

doi:10.24271/psr.2025.541831.2318

Innovative 3D ERT/IP Applications for Characterizing Clastic Sediments in The Proposed Delopa Tourism Project, Erbil, Kurdistan Region-Iraq

Document Type : Original Article

Authors

Sirwa Qader Gardi ¹

Ezzadin Baban ²

Bakhtiar Aziz

¹ Department of Earth sciences and petroleum, College Science, University of Salahaddin, Erbil 44001, Kurdistan Region, Iraq.

² Department of Earth sciences and petroleum, College of Science, University of Sulaimani, Sulaimani, Iraq

10.24271/psr.2025.541831.2318

Abstract

This study was conducted by using 3D Electrical Resistivity Tomography (ERT) and 2D Induced Polarization (IP) techniques to characterize subsurface conditions at Delopa proposed tourism development site in Erbil. The goal of this study is to identify geotechnically favorable regions, assessing earthing potential suitable for electrical utilities and estimating essential geotechnical properties required for engineering design without drilling well or laboratory data. A block of 12 ERT profiles are taken as a simplified 3D ERT and interpolated to a full 3D resistivity model using ZondRes3D software. Additionally, four 2D IP profiles were processed to evaluate chargeability distribution across the same block. Wenner-Schlumberger array is used; the length of profiles is 213m., 3m. electrodes spacing and 5m. inter-profile separation with nearly E-W direction. The 3D resistivity measurements highlighting areas of low resistivity (200 Ω.m), indicative of dry, competent materials. Set of fault structures are delineated at depths of 0-30 meters, with high chargeability (>2 mV/V) associated with clay-filled porosity zones and low chargeability zones (

Keywords

3D Electrical Resistivity Tomography

Induced Polarization

Clastic Sediments

Geotechnical Problems

Earthing

Delopa