Figure 1.
Stratigraphy of the Transvaal supergroup of southern Africa in the Griquitown West area, showing the relationships between the Mn-bearing units of the Hotazel Formation and the underlying volcanics and glacial sediments.
Stratigraphy of the Transvaal supergroup of southern Africa in the Griquitown West area, showing the relationships between the Mn-bearing units of the Hotazel Formation and the underlying volcanics and glacial sediments.