In the opinion of the author, the m

In the opinion of the author, the main success of the geophysical survey at Kadgame Mine was to detect a hematized iron formation known as the Manganore iron formation which is slumped into sinkhole structures in the Campbellrand Subgroup, Transvaal Supergroup, on the Maremane dome. These iron deposits are underlain by manganiferous breccias known as the Wolhaarkop Breccia. Known iron and manganese deposits of this type occur in an arc from Sishen in the north to Postmasburg in the south and is referred to as the Postmasburg Managanese Field (PMF).