ASTR-1010 Lecture Notes - Lecture 11: Geology Of The Moon, Subduction, Valles Marineris

• School: Clemson University
• Department: Astronomy
• Course: ASTR-1010
• Professor: Lih- Sin The

Document Summary

Chapter 9 planetary geology: earth and the other terrestrial worlds. Seismic waves these vibrations that move through the interior of earth is how we collect data about inside of earth. P waves push matter back and forth can travel through solid, liquid and gas. S waves shake mater side to side can only travel through solids. P waves can go through earth"s core but s waves cannot can conclude that earth"s core has a liquid outer layer. Core highest density; made of nickel and iron. Mantle moderate density; made of silicon, oxygen, etc. Crust lowest density; made of granite, basalt, etc. Lithosphere cool rigid rock that sits on surface, consists of crust and part of the mantle. Differentiation high-density material is pulled to the center by gravity results in layers of different materials organized by density. Earth and venus have thinner lithosphere, while mars, mercury, and the moon have thick lithosphere that almost extend to their cores.