[meteorite-list] Livermore Lab Physicist Date Lifetime of Solar Nebula at Two Million Years

[Darren Garrison]

On Wed, 20 Apr 2005 14:12:22 -0700 (PDT), Ron Baalke <baalke at zagami.jpl.nasa.gov> wrote:

>CAIs were formed in an oxygen-rich environment and date to 4.567 billion
>years old, while chondrules were formed in an oxygen setting much like
>that on Earth and date to 4.565 billion, or less, years old.
>

Are the tests really precise enough now that a two-million year age difference in a 4.56x billion
year old sample is concidered accurate?  What is the error bar with the testing used?