Medical News
Earth
7 August 2019
Earth’s tectonic plates have been active for billions of yearsNASA
Earth and its continents may have been shifting for longer than scientists previously thought, according to a new study that suggests plate tectonics evolved over the last 2.5 billion years.
This new timeline is contrary to previous studies that said it emerged only 700 million years ago, and it could impact models used to understand how Earth has changed over time.
Plate tectonics is the large-scale motion of parts of Earth’s crust, and dictates how continents drift apart and come back together. It helps to explain where …
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