Oldest known glaciers discovered in rocks under largest gold deposit

Traces of the world’s oldest known glaciers, dating from 2.9 billion years ago, have been discovered in rocks sitting under the world’s largest gold deposits in South Africa. 

This is according to a press release by the Goldsmith Conference published on Wednesday. 

Researchers Professor Axel Hofmann (University of Johannesburg, South Africa) and Professor Ilya Bindeman (University of Oregon, USA) have found evidence from relative oxygen isotope concentrations in ancient rocks and physical proof showing firm evidence of glaciers.

“We found extremely well-preserved glacial deposits…