Talk:Amino acid dating

message: Yes, too technical, and jargon-filled, and written in the most obtuse style possible.  This needs some serious edits - and the author has a tendancy to drop in and remove maintenance tags. Magichands 22:48, 20 March 2007 (UTC)
thread_title: Untitled

message: I originally wrote the article as an explanation to people involved in other dating methods, therefore
with a science background . All statements are purposely general rather than specific,
and hopefully unambiguous. No specific references are therefore included. Pictures would help
but I have none. I added a list of web pages for further reading. I hope accessibility is not
obtained at the cost of ambiguity.
Bill B. Bill beauvais 20:52, 14 April 2007 (UTC)
thread_title:  changes 

message: I can find sources on either side.  says you can't use it for absolute dating.  says it's neither, but is a derivative method.  seems to describe it as an absolute dating method.  And  again says it's a relative method. Doug Weller (talk) 18:48, 15 September 2008 (UTC)
thread_title:  Absolute or relative dating method? 

message: I changed the expression " having an asymmetric carbon atom." to "having a stereocenter at their α-C atom". The reason is, that atoms are essentially spherically symmetric. Only their substitution pattern may exhibit asymmetry, otherwise molecules such as methane could also be asymmetric/chiral.
TCSH 132.187.199.137 (talk) 11:29, 22 July 2015 (UTC)
thread_title:  "asymmetric" carbon atoms 

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*Added archive https://web.archive.org/web/20110724200233/http://ww2.minas.upm.es/inv/LEB/Lab.Biomolecular.htm to http://ww2.minas.upm.es/inv/LEB/Lab.Biomolecular.htm
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thread_title:  External links modified 

message: All three of these articles appear to broadly overlap and involve the same topic. They all provide different sources of information and specifics on the topic. I think they would all be best combined into one larger article. I don't have enough bio knowledge to combine them properly. Herravondure (talk) 00:58, 26 May 2022 (UTC)
replies: text: This is an extremely bad idea.  Amino acid racemization dating does not depend on the isotopic composition at all.  It involves a very slow chemical isomerization reaction from a left-handed isomer of a chiral molecule to a right-handed isomer of the same chiral molecule (or vice versa).  These are unimolecular reactions with the same first-order kinetics as a radioactive isotope decay, but because they are chemical reactions, they can be influenced by the temperature history of the sample.  The amino acid racemization dating method is useful because the half-lives of some amino acid racemization reactions fall into gaps between isotopic half lives. 184.96.143.55 (talk) 04:14, 14 November 2022 (UTC)
thread_title:  Merger proposal