1. Chapter 4 The Way the Earth Works: Plate TectonicsLECTURE OUTLINEearthPortrait of a PlanetThird Edition ©2008 W. W. Norton & Company, Inc. Earth: Portrait of a Planet,…

Slide 1 Fifteen-Twenty Fracture Zone MAGMA STARVED “MAGMA STARVED” region in the Mid- Atlantic ridge exposes the Earth’s Mantle Slide 2 “Magma Starved”??? MAGMA…

Making the Earthâs crust - The generation and destruction of crustal masses through time Mihai Ducea University of Arizona, Department of Geosciences Tucson, AZ, 85721 Outline…

Global Plate Tectonics The Theory of Plate Tectonics was a revolutionary theory formulated in the 1960s to explain continental drift and the geologic history of the Earth…

NOTES: MARS 0.53 Diam(earth), -140 oC to 20 oC Atmosphere 95% CO2, 3% N2, 2% Ar 24 hr day, 25o axial tilt like Earth 1. Small liquid core and magnetic field. Much thicker…

Earth Formation Earth Formation Formation of the Crust, Continents, Atmosphere, and Oceans Formation of the Crust What is Differentiation? It is a process in which a planet…