A talk presented at the VII Congreso Cubano de Geología: Workshop IGCP-546 which presented an interpretation of jadeitites as a record of tectonic process, subduction zone fluids and their role in understanding Pre-Columbian cultural connections

A talk presented at the 2008 Annual Geological Society of American meeting in Houston, TX in the session honoring the Roebling Medal Recipient Bernard Evans.

Progress report on analysis of serpentinites constituting the paired melanges adjacent to the Motagua fault, Guatemala: Presented at Annual Meeting of the Geological Society of America, Denver, Colorado, 2010.