Slide 1 Constraints on Mantle Structure from Surface Observables Magali Billen University of California, Davis Department of Geology MYRES I: Heat, Helium & Whole Mantle…

Slide 1 Factors Affecting Density Slide 2 Temperature As the temperature of most substances increases –Atoms move faster and spread apart. –Expansion increases the volume…

Slide 1 Earth System Science II – EES 717 The Earth Interior – Mantle Convection & Plate Tectonics Slide 2 Anatomy of Earth Layering based on different criteria 1.…

Slide 1 The Earth is layered Slide 2 Major Plates of the World Slide 3 Mantle Convection Slide 4 Historical Movement (Past 250mya) Slide 5 Pangaea Slide 6 Evidence of Past…

Slide 1 Plate Tectonics Sir Francis Bacon 1620: –“It appears that South America and Africa fit together” Antonio Snyder published a sketch in 1655 showing S.A. and…