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A sedimentological study of the conglomerates in the Elsburg stage on the Welkom and Western holdings gold mines
(University of the Free State, 1970-12)
A sedimentological description of the layers of conglomerate
in the Elsburg Stage of the Witwatersrand System, as disclosed
by 23 boreholes and underground development on the Welkom and
Western Holdings Gold Mines in ...
Die geologie van 'n gebied rondom Uis, Suidwes-Afrika
(University of the Free State, 1970)
'n Regionale, geologiese opname van 'n gebied, ongeveer 950 km2 in groottes is in die gebied oos van die Brandberg, Suidwes-Afrika, uitgevoer. Die dorpie Uis, wat sy ontstaan aan die ontginning van tindraende pegmatiete ...