Class Notes (839,118)
Canada (511,196)
ESS102H1 (104)

Week 1

3 Pages

Earth Sciences
Course Code
Jack Parkinson

This preview shows page 1. Sign up to view the full 3 pages of the document.
Plate Tectonics Lithosphere- solid earth, water oceans (hydrosphere) Atmosphere- air and stuff Biosphere- all living things They interact ex. more CO2 in oceans than in atmosphere, even more in rocks Open and Closed Systems: Isolated: closed off, no relevance to anything happening outside of it Closed: few things affect it, ex. earth affected by sun Open System: direct effects; asteroid arrives and carries into space 3 Major Components of Earth Core: 2250km -solid Mantel: 2900km -liquid, slow, driven by heat from core Crust: 7-50km -we live on this, 2 types: oceanic (7km thick), mainly basaltic rocks, density of 3.3gm); and continental (30-50km) granitic rocks Seismology: measure of earthquake waves - Seismologists -some waves move along surface, others under surface -under surface waves refract off bottom -stress builds as a result of pressure (two plates moving against each other), movement not steady, but jolts 2 types of energy waves: - Primary: arrive first, move fastest, horizontal waves, side to side, slinky against a wall - Secondary: arrive second, slower, rope against a wall, vertical waves, shake waves Seismographs: heavy weight suspended on a spring, if there’s a quake, the ground moves up (block stays still), needle attached to block will leave pattern on piece of paper attached to bottom of thing. The space between the P and S waves indicates the distance the waves have travelled Earthquakes in Pacific Rim area are now entered into a tsunami warning network S waves do not pass through liquids (you can’t shake water, but you can push it) S Waves from earth
More Less
Unlock Document

Only page 1 are available for preview. Some parts have been intentionally blurred.

Unlock Document
You're Reading a Preview

Unlock to view full version

Unlock Document

Log In


Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.