EESA06H3 Lecture 5: Intro to Planet Earth Lecture 5

159 views2 pages
10 Feb 2017
School
Course
Professor

Document Summary

Uniformitarianism: the present is the key to the past (actualism) The limit of uniformitarianism is that we can only look at what is happening today examples are meteoroids and super volcanoes. Most mid ocean ridges under water very expensive to go under water and study them. Continental breakup: the formation of passive plate margins- plates move around slide past, collide when they collide call them active plate margin. When continents break up we create passive margins they are on trailing edge of the plate. Abyse planes l anything that is deep. Magnetic stripes ensure that this process has occurred alternating stripes tells us the age, and looking at the width shows the rate of spreading. There is a finite age to the ocean floors and variations in the rate of spreading. The zone is wider more ocean is produced, pacific is very fast spreading. Mid ocean ridges can be classified in slow, intermediate and fast much faster in eastern specific.

Get access

Grade+20% off
$8 USD/m$10 USD/m
Billed $96 USD annually
Grade+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
40 Verified Answers
Class+
$8 USD/m
Billed $96 USD annually
Class+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
30 Verified Answers

Related Documents