An absolute dating technique that depends on measuring the chemical composition of a specimen. Chemical dating can be used when the specimen is known learn more here oxford slow chemical change at a known rate. For instance, phosphate in buried bones is slowly replaced by fluoride ions from the ground water.
Measurement of the proportion of fluorine present gives a rough estimate of the time that the bones have been in the ground.
chemical dating
Another, more accurate, method depends on the fact that amino acids in living organisms are l-optical isomers. After death, slow racemize and the age of bones can be estimated by measuring the relative amounts of d- and l-amino acids present.
From: chemical dating in A Dictionary of Biology click. Subjects: Science and technology — Chemistry. View all related items dating Oxford Reference slow. Search for: 'chemical dating' in Oxford Reference ». All Rights Reserved. Under the terms of the licence agreement, an individual user may print out a PDF of oxford single entry from https://wellnessways.info/dating-over-50-when-to-kiss.php reference work in OR for personal use for details see Privacy Policy and Legal Notice.
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Related Content Related Overviews dating techniques amino-acid racemization. Show Summary Details Overview chemical dating. Reference entries chemical dating in Dating Dictionary of Chemistry 6 Length: words.
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