Summary:
- The article discusses the discovery of limestone and iron deposits in Western Australia that suggest the region experienced extreme rainfall events around 100,000 years ago.
- Researchers analyzed the geochemical composition of the deposits and found evidence of intense weathering and erosion, indicating the area was subjected to heavy rainfall during this time period.
- This finding is puzzling, as the region is currently arid, and the researchers suggest the extreme rainfall events may have been linked to changes in global climate patterns during the Pleistocene era.