A new study brings into question the use of the molecule fullerene as a geologic indicator of impact events on ancient Earth.
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Impact events: March 2016
We have identified iridium in an ~5 m-thick section of pelagic sediment cored in the deep sea floor at Site 886C, in addition to a distinct spike in iridium at the K-Pg boundary related to the Chicxulub asteroid impact.
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