I: Witwatersrand conglomerates with poorly sorted quartz pebbles in a matrix rich in pyrite
I: Pyrite rich quartz pebble conglomerate, Witwatersrand Group, South Deep gold mine
I: Icy rime covering the tent openings at a very frosty campsite alongside the Vaal River, Parys
I: Enfrosted patterns on wooden logs in the Smilin Thru resort, Vaal River, Parys
I: Iced chocolate for breakfast?
I: Iced coffee for breakfast?
I: Witwatersrand quartzites exposed in the collar of the Vredefort Dome
I: Stratified quartzites of the Witwatersrand Group dip towards the centre of the Vredefort Dome
I: Cross-bedded fluvial quartzites of the Witwatersrand Group cut by a grey pseudotachylite vein, Vredefort collar
I: Measuring the dip and palaeocurrent direction preserved in overturned Witwatersrand quartzites in the Vredefort collar
I: Basement Archaean granitic gneisses in the centre of the Vredefort Dome at Otavi
I: Drill holes left after sampling of the pseudotachylite veins in the granite gneiss basement, Otavi
I: Net veins of pseudotachylite in basement granite gneiss, Otavi quarry
I: Koppieskraal Quarry cut in basement granite gneiss, Vredefort dome
I: Migmatititc granite gneiss, Koppieskraal quarry, Vredefort Dome
I: Blocks of pseudotachylite riven granite gneiss, Koppieskraal quarry, Vredefort
I: Dark pseudotachylite veins cross cutting granite gneiss, Koppieskraal quarry, Vredefort
I: Introduction to the geology of the Waterval platinum mine, Rustenburg
