F Conner And Z Spencer
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  • 1. Magma, Tubeworms, and Clams, oh my!
    All about the Mid-Ocean Ridge.
    By Fenn and Zoë
  • 2. What is the Mid-Ocean Ridge?
    It is a “network” of mostly underwater mountains.
    They are all connected and form a large “chain” wrapping almost around the world.
    “The mid-ocean ridge winds its way between the continents much like the seam on a baseball.” -http://pubs.usgs.gov/publications/text/baseball.html
    Mid-Ocean Ridge. 2009. Ken MacDonald. 28 sept.
    http://www.bbc.co.uk/nature/blueplanet/infobursts/images/midoceanridge.gif
    http://encarta.msn.com/text_761595522_0/mid-ocean_ridge.html
  • 3. How is it Formed?
    Divergent oceanic plates spread apart, causing magma to bubble out.
    The magma hardens and forms an underwater mountain.
    This process is also called “Seafloor Spreading.”
    Marshak, Stephen. Earth: Portrait of a Planet. New York, NY: WW Norton and Company Inc., 2001.
  • 4. http://www.gly.uga.edu/railsback/1121MORBasic.jpeg
  • 5. Thingvellir(thing-vill-eer)
    Thingvellir is in Iceland.
    Some of the Mid-Ocean Ridge is exposed on the surface of Thingvellir. A river has formed there.
    Horrible volcanoes happen in Thingvellir because of the ridge. About 9,000
    People died because
    a volcano killed their
    livestock.
    Thingvellir. 29 Sep. 2009. <http://www.edwebproject.org/scandanavia/thingvellir.html>
  • 6. IT’S HOT!
    Fun Facts!
    A lot of the Mid-Ocean Ridge is still unmapped.
    Most of the ridge lies 6,000 ft. beneath the sea.
    Some of the sea life near the Mid-Ocean Ridge includes giant tube worms, spider crabs, and giant clams!
    Thingvellir was home to the first parliament for vikings!
    Mid-Ocean Ridge. 2009. Ken Macdonald. 29 Sep. 2009. <http://encarta.msn.com/text_761595522_0/mid-ocean_ridge.html>
    Iceland Volcanics and Plate Tectonics. 2003. USGS. 29 Sep. 2009. http://vulcan.usgs.gov/glossary/platetectonics/description-plate-tectonics.html
    Exploring the Deep Ocean Floor: Hot Springs and Strange Creatures. 1999. USGS. 29 Sep. 2009. http://pubs.usgs.gov/gip/dynamic/exploring.html
    Thingvellir. 29 Sep. 2009. <http://www.edwebproject.org/scandanavia/thingvellir.html
    http://4.bp.blogspot.com/_TBo02pPkXnY/R7AulQC0oaI/AAAAAAAAAas/BwDqRHdf7q4/s320/tubeworm.jpg
    http://impressive.net/people/gerald/2005/11/02/15-59-06-sm.jpg
  • 7. Well, thanks for watching!
    Hope you liked our presentation and
    learned a lot from it! 
    And by the way… do you think that the Vikings were affected by the mid ocean ridge in Thingvellir too? Hmmmmmm….
    http://4.bp.blogspot.com/_umo9e9iDLLQ/Sk-OKbCBiEI/AAAAAAAABLw/RGlEiUwomDs/s400/viking+cartoon.bmp