Geophysical Ground Magnetic Investigations of Lady A claims in Concession, Zimbabwe

Bernard Siachingoma

Abstract: A geophysical subroutine using magnetic method was conducted on lady A claims in the concession area 75 km NNW of Harare, Zimbabwe. The survey area lies in the mineral rich greenstone belt. The rocks in the study area include mafic to felsic volcanics with occasional sediments and ironstone intercalations. The gold mineralization is associated with quartz reefs hosted within metabasalts. The reefs are concordant to the parallel shear zones in banded ironstones. The ground magnetics survey done revealed interesting structures with potential to host mineralization. Induced polarization was recommended as a follow method to clearly delineate the observed structures.

Keywords: magnetic method, greenstone belt, gold mineralization, delineate