Evolution of the 87Sr/86Sr composition of Neoproterozoic seawater Halverson, Galen P. ; Dudás, Francis Ö. ; Maloof, Adam C. ; Bowring, Samuel A. Abstract Publication: Palaeogeography Palaeoclimatology Palaeoecology Pub Date: December 2007 DOI: 10.1016/j.palaeo.2007.02.028 Bibcode: 2007PPP...256..103H