[ RadSafe ] 4.4 billion year old crystal

JPreisig at aol.com JPreisig at aol.com
Thu Feb 27 12:52:42 CST 2014

      Google     accelerator  mass spectrometry    and/or
                      tandem accelerator mass spectrometry     also.
                    Joe Preisig
In a message dated 2/27/2014 12:33:34 P.M. Eastern Standard Time,  
phils at umich.edu writes:


The a web search of the general term  “geochronology” will give you links 
to more information about dating rocks  than you probably ever wanted.

Phil Simpson
Assistant Reactor  Manager (Retired)
University of Michigan
Ford Nuclear  Reactor

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