MCRRox Posted February 24, 2006 Share Posted February 24, 2006 We are currently in Plate Techtonics in Earth Science, and I'm having a complete brain freeze. I know..this may sound stupid but... What kind of data did Hess collect that allowed him to develop his theory of sea floor spreading? Why is the oldest seafloor crust found farthest from a mid ocean ridge? How can the magnetic orientation of rocks be used to trace the way a continent moved and drifted? Link to comment Share on other sites More sharing options...
ed84c Posted February 24, 2006 Share Posted February 24, 2006 well, when a rock is liquid, its magnetic polarity can change. When its solid it is stuck that way forever. By seeing what polarity each band is you can count the number of years back to when the continent was formed. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now