TITLE:
Ground Electromagnetic and Electric Studies for Um Salim Gold Mine, Central Eastern Desert, Egypt
AUTHORS:
Mohamed A. El-Sadek, Ibrahim M. M. Al-Alfy, Hussein F. Abd El Salam, Mostafa A. M. Zaeimah
KEYWORDS:
Electromagnetic, Induced Polarization, Gold Mineralization
JOURNAL NAME:
Journal of Geoscience and Environment Protection,
Vol.9 No.8,
August
17,
2021
ABSTRACT: Horizontal Loop Electromagnetic (HLEM) and
Induced Polarization (IP) methods have been carried out within Um Salim gold
mine area. The study area reveals special importance, as it comprises rock
units, which show some indication of the presence of various mineralization.
The result of HLEM has shown significant and well-defined conductive zones are
recorded along with the four used frequencies
(110 Hz, 440 Hz, 1760 Hz, and 7040 Hz) at the station 2,782,900 and
station 2,782,880 of two (HLEM) profiles (596,050 N & 596,240 N)
respectively, that may reflect the sources of the conductive bodies are
situated at shallow depths continued to considerable depths. The result of IP
exhibits a strong anomalous zone centered at stations 140 and 240, with
chargeability values ranging (37 to more than 120 mV/V) on
chargeability model section, and corresponding to high resistivity on resistivity
model section which may reflect considerable surface and subsurface
disseminated mineralization. Through the integration between HLEM and IP a core
drilling is recommended at station 140 on IP profile which coincides with
station 2,782,850 on HLEM profile (596,240 N) to a depth of concerning 100m
take a look at the thickness, depth, and grade of
mineralization.