Trapped gases in 1.4 billion-year-old salt crystals reveal ancient secrets about oxygen and carbon dioxide levels on early ...
Interesting Engineering on MSN
Ancient salt crystals shed light on Earth’s climate 1.4 billion years ago
Through the analyses of gases and fluids preserved within salt crystals, the team extended the direct record of Earth’s ...
The Brighterside of News on MSN
Ancient salt reveals a clear view of Earth’s atmosphere from 1.4 billion years ago
More than a billion years ago, a shallow basin in what is now northern Ontario held a subtropical lake. The setting likely resembled modern Death Valley, where heat drives evaporation and leaves salt ...
Modern Engineering Marvels on MSN
Ancient air in salt crystals redefines Earth’s “boring billion”
What is shelf life on a breath of air? Well, it just so happens that back in northern Ontario, it’s 1.4 billion years.
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