Slide 1The Mantle Transition Zone: Seismic Properties, Deep Subduction, Earthquakes, and Petrology Wang-Ping Chen University of Illinois, Urbana-Champaign [Green, ’01]…

The Mantle Transition Zone: Seismic Properties, Deep Subduction, Earthquakes, and Petrology Wang-Ping Chen University of Illinois, Urbana-Champaign [Green, ’01] Outline…

Continental growth spurts were all before 1 Ga This plus ophiolites, kimberlites, komatiites, TTG,UHPTâ¦suggest that modern plate tectonics was not occurring before Late…

Eclogite Engine Don L. Anderson Caltech Can we bridge geophysics,geochemistry & geodynamics? Continents; the missing link The lower crust is transient It is recycled…

578 R. J. STERN Chinese Science Bulletin | March 2007 | vol. 52 | no. 5 | 578-591 When and how did plate tectonics begin? Theoretical and empirical considerations R. J. STERN…