Curtin University researchers use innovative techniques to date three-billion-year-old impact crater in Pilbara region A meteorite that struck Earth three billion years ago left behind a “smoking gun” – evidence of the world’s oldest impact crater in a remote part of Australia. Ancient rocks in Western Australia’s Pilbara region record the event, which occurred during the Archean eon, a period 4 to 2.5 billion years ago, when tectonic plates were beginning to form and early life emerging. Continue reading... from The Guardian https://ift.tt/vFNkr3E via IFTTT
Karin Immergut said earlier she ‘found no credible evidence’ that protests in Oregon city were out of control
A judge has issued her final order and formally blocked Donald Trump from sending the national guard to Portland, Oregon.
The district court judge, Karin Immergut, delivered her final order in the case on Friday.
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