Billion-year geological model explains the Great Unconformity seen in the Grand Canyon
Mantle-flow models suggest prolonged continental uplift, followed by sinking and burial, helped form and preserve the Great Unconformity.The…
Sea salt may have made Snowball Earth far colder than previously thought
Salt crystals left behind on extremely cold tropical sea ice may have reflected as much as 93% of…
Seasonal and Multi-Decadal Climate Cycles Persisted during Snowball Earth, Scientists Say
A new analysis of exquisitely preserved laminated rocks (varves) from the Port Askaig Formation on the Garvellach Islands,…