Columbia subject headings:
Breccia.
Caves--South Africa--Transvaal.
Dolomite--South Africa--Transvaal.
Geology, Stratigraphic--Precambrian.
Geology--South Africa--Transvaal.
Harvard subject headings:
Breccia.
Caves--South Africa--Transvaal.
Dolomite--South Africa--Transvaal.
Dolomite.
Geology, Stratigraphic--Precambrian
Geology--South Africa--Transvaal
Paleontology--Precambrian
Princeton subject headings:
Breccia.
Caves--South Africa--Transvaal.
Dolomite--South Africa--Transvaal.
Geology, Stratigraphic--Precambrian.
Geology--South Africa--Transvaal.