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.
Trapped gases in 1.4 billion-year-old salt crystals reveal ancient secrets about oxygen and carbon dioxide levels on early ...
IFLScience on MSN
“It’s an incredible feeling”: Salty air bubbles in 1.4-billion-year-old crystals reveal secrets of Earth’s early atmosphere
Salt crystals formed when a saline lake dried up 1.4 billion years ago trapped air inside, providing a sample of the ...
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