The glacial sediments of the Makganyene formation of South Africa are slightly younger than the Huronian glacial deposits ( ~ 2.25 billion years old ) .
The glacial sediments of the Makganyene formation of South Africa were deposited at tropical latitudes .
The glacial sediments of the Makganyene formation of South Africa are slightly younger than the Huronian glacial deposits ( ~ 2.25 billion years old ) and were deposited at tropical latitudes .