TWO-DIMENSIONAL RESISTIVITY INVESTIGATION OF CASSITERITE DEPOSIT AT PINGEL VILLAGE, MAGAMA GUMAU, BAUCHI STATE, NIGERIA

Yusuf Ogirma Bashir, Jimoh Raimi, Ahmed Aminu

Abstract


Two dimensional geoelectric resistivity survey was conducted at the mining site in Pingel village, Magama Gumau, Bauchi state, Nigeria. The survey was undertaken to characterize the cassiterite deposit in the area. The Schlumberger array was used and a total of five profiles were then taken across the study area and the result of the 2D resistivity survey revealed the occurrence of three to four layers in the geoelectric models. The top layer consists of earth materials with resistivity values mostly less than 120 Ωm, and is inferred to consist of clayey sand and laterite with an approximate thickness of 4.5 m. The second layer has resistivity range of 60 Ωm to 250 Ωm and may consist of weathered and fracture rocks with cassiterite composition at approximately 7.0 m depth. The third layer is characterized by highly resistive values that is greater than 800 Ωm, at a depth stretching beyond 7 m. The high resistivity values could be associated with the fresh basement.


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References


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