The oldest asteroid crash crater on Earth dates back 2.2 billion years

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The oldest asteroid impact crater is about 2.2 billion years old, is found in western Australia, and may be behind a major climate change, according to a recent study.
The impact crater in Yaruba, with a diameter of about 70 km and difficult to identify due to the erosion of its original structure, is classified as the oldest on the planet. But scientists were not previously able to determine its exact age. Thanks to a highly accurate dating technique, researchers at Curtin University in the Australian city of Perth succeeded in targeting metal pellets that “recorded” the shock of the impact through a recrystallization path, according to a study published in the journal Nature Communications.
The scientists concluded that the impact crater in Yarubaoba was formed 2,229 billion years ago, a date that coincides with the end of the freezing phase called the “Earth Snow Ball”.
“There is geological evidence other than that related to the study based on the existence of clusters and volumes on Earth, between 2.4 billion and 2.2 years ago,” said Timmons Erickson of the NASA Johnson Center, the lead author of the study. The newest blocs are in South Africa, the age of the impact crater in Yaruba.

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