Fossilized bivalve shells buried in an ancient sea sediments are receiving daylight for the first ti
Fossilized bivalve shells buried in an ancient sea sediments are receiving daylight for the first time in ~250 million years. These sediments are rich in iron minerals, which has replaced the carbonate shell material and preserved the original texture of the shell. Thank you iron oxides for preserving the growth layering of this shell for us to admire. Beach-side outcrop in southeastern Australia. -- source link
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