Plate Tectonics Theory.

Alfred Wegener Theory.

Alfred Wegener In the litosphere are the plate tectonics.  These move forming different types of plates.There is a theroy which was        proposed by Alfred Wegener.

 

 

 

Evidences for continental drift:

  • Geographical:  Fit of the continents
  • Paleonthologycal: Identical fossils were located directly opposite on widely separated continents.
  • Geological: Similar rock types on continents on opposite sides of the Atlantic Ocean.

Plate Tectonics Theory.( http://www.sci.csuhayward.edu/~lstrayer/geol2101/2101_Ch19_03.pdf )

Concepts of continental drift and seafloor spreading are united into a much more encompassing theory known as plate tectonics.

This is a far-reaching theory that has become the basis for viewing most geologic processes — mountain building, paleontology, volcanism, earthquakes, etc.

The Earth’s surface is composed of rigid plates known as the lithosphere.  These plates overly a weaker region of the mantle known as the aesthenosphere.

There are 7 major plates and over a dozen smaller plates.  Plates move slowly but continously on the order of a few cm/year.

Bibliography:

Nerea López Peirona

About these ads

, ,

  1. #1 by Shane on July 16, 2013 - 6:52 am

    When i adored your own weblog then beliefs. That you’re gorgeous.
    Thank you so much with regard to developing this and i also anticipate to view a great deal more within you further on.
    Lovely alignment maintaining your website fully clean not to mention high-quality without any any individual spam site.

    Will you get helpful hints with regard to the page to have the idea clear of unsolicited mail?
    And also choices to be able to deliver together with stunning amazing want the ones you have?
    Regretful for my speech :) it is really and not a good local language you are studying, dream you’ll be able
    to fully understand

  2. #2 by ครีมบำรุงผิวหน้า on October 25, 2014 - 2:32 am

    I do not know whether it’s just me or if perhaps everybody else encountering issues with
    your website. It appears like some of the text within your posts are running off the
    screen. Can someone else please comment and let me know if this is
    happening to them too? This may be a problem with my internet browser because I’ve had this happen before.
    Thanks

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

Follow

Get every new post delivered to your Inbox.

%d bloggers like this: