Different Type Of Tem Signals Along Only One Profile: Benefit Study For Beginners

The superparamagnetic (SPM) effect caused by laterites, “red soil” in Africa distorts TEM signal. Usually the SPM effect occurred if coaxial loops are used. The instrument TEMFAST48 has been used. Different types of signals distorted my SPM and induced polarization (IP) effects have been recorded along only one profile. Interpretation of TEM data has been carried out using the software TEM-RESEARCHER. This software allows mathematical modelling of the TEM signals distorted by induced polarization (IP) and SPM effects. Eight blocks with different geology have been delineated along one profile with a length of 7.4 km, with each block separated by a fault. The result of interpretation is a geoelectrical profile in very good agreed with geological data collecting from outcrops.