Where did ocean currents come from?
Billions of years ago, wind, heat and the rotating Earth formed currents just as they're produced today — but their paths would have been wildly different.
Source: livescience.com
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Billions of years ago, wind, heat and the rotating Earth formed currents just as they're produced today — but their paths would have been wildly different.
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Researchers from Curtin University in Perth, Australia analysed crystals of the mineral zircon from the Pilbara Craton - an ancient piece of the planet's crust - to investigate its origins.