Session: 2008 George P. Woollard Award Technical Lecture - Dr. Gene Humphreys - Delamination, Drips, and other forms of small-scale convection: What's going on down there? ( 2008 Joint Meeting of The Geological Society of America, Soil Science Society of America, American Society of Agronomy, Crop Science Society of America, Gulf Coast Association of Geological Societies with the Gulf Coast Section of SEPM)