The Earth's record high temperature of 2,370°C 4,298°F was caused by an asteroid impact Reidites form when zircons undergo high temperatures and pressures, and their presence allows experts to calculate the pressures experienced by the rocks in the impact.
It is believed one hits Earth once every 200 - 300 years.
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However, to confirm the initial findings, researchers needed to date more than one zircon.
Share These came from different types of rocks in different locations, giving a more comprehensive view of how the impact heated the ground.
It was first discovered in 2011 in what today is Labrador, , before being as having been heated to the hottest temperature ever known for a rock on the surface of the Earth.
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Description: The results showed that the impact-glass zircons were formed in at least 4,298°F 2,370°C heat, just as the 2017 research had suggested.