Previous Article Next Article Table of Contents Science, Vol.278, No.5336, 240-241, 1997 DOI10.1126/science.278.5336.240 Export Citation Geology - Do Continents Part Passively, or Do They Need a Shove Carlson RW Keywords:FLOOD BASALTS;PERIDOTITE XENOLITHS;LITHOSPHERIC MANTLE;EVOLUTION;OS;CONSTRAINTS;MAGMATISM;ISOTOPE;CRATON;SR Please enable JavaScript to view the comments powered by Disqus.