Australian scientists find Timor Sea meteorite crater: "Australian National University archaeologist Andrew Glikson said seismic activity led experts to the Mount Ashmore 1B site, and a study of fragments showed a large meteorite hit just before the Earth's temperatures plunged.
'The identification of microstructural and chemical features in drill fragments taken from the Mount Ashmore drill hole revealed evidence of a significant impact,' Glikson said, adding it was at least 50 kilometres (31 miles) wide and about 35 million years old.
A meteorite 100 kilometres wide hit Siberia at the same time, along with an 85 km one in Chesapeake Bay, off the US coast of Virginia, followed by a large field of molten rock fragments over northeast America, he said.
'This defined a major impact cluster across the planet,' said Glikson."
Comment -- That's three titanic meteor impacts at the same time about 35 million years ago. Yet, it does not appear that it caused mass extinctions.
I ran across an article that suggested that geologists can't really say all three hit "at the same time." The strikes may have been separated by a million years, which gave the biosphere some time to recover.
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