Homework 6 - Homework #6 Preston Straight ATOC 1060 3/21/08...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Homework #6 Preston Straight ATOC 1060 3/21/08 Chapter 7 3 .) The two major bases to explain the Earth’s interior are the separation of the solid Earth into the core, mantle, and the crust on the basis of seismic wave velocities . The other separation explains how continents are mobile plates that drift across the layer below . We call this outermost sphere the lithosphere. The crustal part of the lithosphere is brittle and can fracture in response to stress . Below the lithosphere is the asthenosphere, a region of the upper mantle that acts more like a fluid than a solid . 5 .) Earthquakes are focused along the plate boundaries because the plates are in motion. As plates move relative to eachother at different speeds friction occurs . There are alternating periods of stasis, when stresses build, and periods of movement, when the stress is released causing earthquakes . 6 .) Convection in the mantle heat the interior of the Earth. The rocks in the mantle are ductile at the temperatures and pressures that occur within the mantle
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 03/29/2008 for the course ATOC 1060 taught by Professor Keen,richa during the Spring '07 term at Colorado.

Page1 / 2

Homework 6 - Homework #6 Preston Straight ATOC 1060 3/21/08...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online