START A PETITION37,000,000 members: the world's largest community for good

North American Continent Is a Layer Cake, Scientists Discover

World  (tags: North America, Continent, Layer Cake, Scientists, Discovery, environment )

- 2246 days ago -
The North American continent is not one thick, rigid slab, but a layer cake of ancient, 3 billion-year-old rock on top of much newer material probably less than 1 billion years old, according to a new study by seismologists at the University of California

Select names from your address book   |   Help

We hate spam. We do not sell or share the email addresses you provide.


gail dair (0)
Friday August 27, 2010, 12:12 am
thanks Anna

Ana S. (76)
Friday August 27, 2010, 12:20 am

Valerie S. (70)
Friday August 27, 2010, 5:55 am
Very cool, noted, thanks!

William K. (308)
Sunday August 29, 2010, 1:33 pm
Thank you so much for posting this! I have bookmarked this and will use this in a class that I teach. Interesting how it seems to not follow the Law of Superposition; however, it probably does not contradict this law, as it reveals the scale at which tremendous geological forces have been operating.
Or, log in with your
Facebook account:
Please add your comment: (plain text only please. Allowable HTML: <a>)

Track Comments: Notify me with a personal message when other people comment on this story

Loading Noted By...Please Wait


butterfly credits on the news network

  • credits for vetting a newly submitted story
  • credits for vetting any other story
  • credits for leaving a comment
learn more

Most Active Today in World

Content and comments expressed here are the opinions of Care2 users and not necessarily that of or its affiliates.

New to Care2? Start Here.