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Keywords: recrystallization
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Journal Articles
The American Biology Teacher (2022) 84 (6): 336–341.
Published: 01 August 2022
... recrystallization. Similarly, the so-called collagen fraction of Mesozoic fossil bone (actually the total organic fraction) yields a falsely young “date,” due to the presence of organic contaminants, including glue that is added during fossil excavation. The contaminants are responsible for the falsely young...
Journal Articles
The American Biology Teacher (2020) 82 (2): 72–79.
Published: 01 February 2020
... bone incorporates new radiocarbon by means of recrystallization and, in some cases, bacterial activity and uranium decay. Because of this, bone mineral – fossil or otherwise – is a material that cannot yield an accurate radiocarbon date except under extraordinary circumstances. Mesozoic bone...