Rocks returned by China’s Chang’e-6 mission suggest volcanic activity just 2.8 billion years ago but lack telltale heat-generating elements.
The discovery in the Valtellina Orobie mountain range in Lombardy dates back 280 million years to the Permian period, the age immediately prior to dinosaurs, ...
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Four billion years ago, but not so different: Plate tectonics likely looked closer to what we experience todayMoving continents are destructive—crustal rocks are destroyed and recycled ... 9–2.7-billion-year-old Saglek-Hebron Complex and 4.0–3.4-billion-year-old Acasta Gneiss Complex and found that instead of ...
We're showing that, everywhere we look now, there was some sort of magnetic field that was responsible for bringing mass to ...
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