Biosignature in 3.7 - 4.2 Billion Year Old Rock with Banded Iron Formations from Canada (IMAGE)
Caption
Example of sub-microscopic graphite (red) with carbonate (green) and magnetite (yellow) inside a crystal of apatite (turquoise) in a 3.7 to 4.2 Byr old BIF from Canada.
Credit
Matthew S. Dodd Ph.D.
Usage Restrictions
Credit: Matthew S. Dodd Ph.D.
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