Slide 1

Recent Progress in High-Pressure Studies on Plastic Properties of Earth Materials COMPRES meeting at lake Tahoe June, 2004 Slide 2 Grand challenge program (2002-2007) PIs P. Burnley (Georgia Tech.) H.W. Green (UC Riverside) S. Karato (Yale University) D.J. Weidner (SUNY Stony Brook) W.B. Durham (LLNL) [Y. Wang (APS)] Slide 3 Goal of this project To develop new techniques of quantitative rheology experiments under deep Earth conditions (exceeding those in the transition zone: ~15 GPa, ~1800 K) flow laws deformation microstructures (fabrics) global dynamics Slide 4 Quantitative rheological data at high-T from currently available apparatus are limited to P