JoziFolk - images of everyday life and places in South Africa

Old building on the road through the Vredefort Dome near Parys, South Africa
 
 Old building on the road through the Vredefort Dome near Parys, approximately 120 km from Johannesburg in South Africa.
 The Vredefort Dome is a World Heritage site and was formed when a huge meteorite struck the earth approximately 2023 million years years ago. The crater formed had a diameter of around 300km but subsequent erosion has seen this reduce to 70km nowadays.
 The meteorite impact happened about 2023 million years ago, at a time when there were no people or even animals of plants like we see today. The only living thing was a type of algae, like the green slime seen in dams today.
 To make a crater 300 km wide, the meteorite must have been about 10 km across (as big as a mountain) and traveling at more than 10 km per second (36 000 km/h!).
 The Vredefort Dome is only the central part of the impact crater. It is called a dome because the rock layers were bent into the shape of an upside-down bowl 90km across by the impact.

Read more about the Vredefort Dome on Wikipedia and how it was formed here.

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Image: Hilton Hamann

 

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