Amino acid racemization dating

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Bada, Jeffrey L. Last reviewed: Determination of the relative or absolute age of materials or objects by measurement of the degree of racemization of the amino acids present. With the exception of glycine, the amino acids found in proteins can exist in two isomeric forms called D - and L -enantiomers.
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Amino Acid Racemisation

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Dickinson, Marc R. Quaternary Geochronology. ISSN Analysis: of the predictable breakdown of proteins and amino acids in ancient biominerals enables age estimation over the Quaternary. We postulate that enamel is a suitable biomineral for the long-term survival of endogenous amino acids. However, the low concentrations of amino acids coupled with high concentrations of inorganic species make accurate determination of amino concentrations challenging.
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Historical Geology/Amino acid dating

Amino acid dating has an important attribute in common with Carbon 14 dating. While most other dating mechanisms date the rock surrounding fossils, both Amino Acid and Carbon 14 dating methods, date the actual fossil itself. This ability to date the actual specimen could make the Amino Acid dating procedure very valuable.
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