Application of electrical tomography technique for landslide investigation: Case of the Kef Essenoun phosphate deposit, Djebel Onk (Northeastern Algeria)
Author:
Salah Saadaoui1ORCID, Ismail Nouioua2ORCID, Mohamed Cherif Djouama1
Affiliation:
1. Mining Department, Faculty of Earth Sciences, Badji Mokhtar-Annaba, University 2. Department of Mining and geotechnology, Larbi Tebessi University
Abstract
The enormous development of the technology of raw material extraction drives the economic companies and technicians to make efforts to meet the needs of consumers. These efforts directly influence the nature, creating voids or cavities in the soil and subsoil inducing a structure disturbance and subsequently giving damages. A landslide of the Kef Essenoun phosphate deposit occurred in 2007 when large mass of rocks detached caused a number of undesired and negative effects. To analyze this deformation, a two-dimensional (2D) electrical tomography with the Wenner and Schlumberger device was deployed, using equipment of Syscal Pro 48 type for the implementation of an electrical profile, through a transect length of 140m with electrode spacing of 3m and a depth of investigation that measures 32m to the center. Data processing was performed using RES2DINV software and the results allowed mapping visible cracks with a high resistivity value of 890Ωm as well as low values of 6Ωm for marls and clay. In addition, to predict the extent of cracks (slip) and geological formations. These phenomena have been evidenced due to tectonic (rough terrain) on one side and sliding on the other.
Publisher
Geophysical Center of the Russian Academy of Sciences
Subject
General Earth and Planetary Sciences
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