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There is now a CONTENT FREEZE for Mercury while we switch to a new platform. It began on Friday, March 10 at 6pm and will end on Wednesday, March 15 at noon. No new content can be created during this time, but all material in the system as of the beginning of the freeze will be migrated to the new platform, including users and groups. Functionally the new site is identical to the old one. webteam@gatech.edu
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The second step in measuring the chromium isotope relation: Dissolve the pulverized rock in acid. Then place the solution in a mass spectrometer, which determines how much chromium 53 and how much chromium 52 is in the sample. Credit: Georgia Tech / Christopher Moore
