Dissolved Pb isotope ratios 
   U.S. GEOTRACES Arctic 
  PI: Edward A. Boyle (MIT) 
  Co-PI: Cheryl M. Zurbrick (MIT) 
  Version history: 
   2021-04-19. v2. (current) - removed duplicate row for sample 11934. 
   2020-11-04. v1. - replaced with GEOTRACES DOoR-formatted version. 
   2019-04-05. v0. - original version processed; restricted access.