A new article has been published in the Geological Society of America Bulletin.
Here is the citation: Laó-Dávila, D.A., Llerandi-Román, P.A., and Anderson, T.H., 2012, Cretaceous-Paleogene thrust emplacement of serpentinite in southwestern Puerto Rico: Geological Society of America Bulletin, doi: 10.1130/B30630.1.
The link to the article is: http://gsabulletin.gsapubs.org/content/early/2012/06/08/B30630.1.abstract