ENSC 2001 Lecture Notes - Lecture 2: South American Plate, Plate Tectonics, Continental Crust

• School: Carleton University
• Department: Environmental Science
• Course: ENSC 2001
• Professor: Quentin Gall

Document Summary

Covering the crust, is hydro sphere, then the hydrosphere, then something, then magnetosphere. There is a change in material property from one to another. Nickel and iron are dominant in the core. The further down the hotter, and its under extreme pressure. Moving contact between outer core and mantle, which may be the reason for our magnetic whatever. Less dense as you move out from the core. Outer asthenosphere on the mantle (or crust) is capable of flowing . on top of that is the lithosphere (greys and browns- more rigid) Mantle: lithosphere: max tem 1200-1400 degrees c. and 3. 3 grams per cubic cm for density. Mantle to crust: moho discontinuity between the crust and the top of the mantle. There is physical changes and chemical changes there of the hrick property. Crust two components: 1. oceanic crust no thicker than 7 km, dominated by volcanic basaltic rock lots of mag an iron.