EPS 80 Lecture Notes - Lecture 2: Large Igneous Province, Aluminium Silicate, Mantle Convection

• School: Berkeley
• Department: Earth And Planetary Science
• Course: EPS 80
• Professor: Hassler Scott

Document Summary

Interior structure of the earth: scientists can study what"s beneath the surface by looking at what"s above the surface. The grand canyon is an example of the build up of sediment and rocks. Continental crust: made up of calcium, potassium, and aluminum silicate minerals. Oceanic: made up of magnesium, iron, and na rich silicates: mantle, core (outer/inner) Hawaii is an example of a trail of hotspot volcanoes: mantle convection. Plate tectonics: what are plate tectonics, both the crusts and the mantle are solid rock, plate tectonics explain lots of unrelated geologic phenomena, types of plate boundaries, transform fault boundaries: plates slide horizontally past each other (ie: san. Subducted oceanic crust may sink to the core/mantle boundary: only oceanic plates are dense enough to subduct. This is normal and reflects changes in outer core circulation: when volcanic rocks at mors cool, they record field direction, which illustrates a symmetrical pattern.