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Oceanography: ALVIN and Sea-Floor Spreading (Britannica.com)

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Published on 15 Feb 2007

Travel underwater and take a look at how scientists used the ALVIN submersible to learn more about sea-floor spreading.

**************Related Links**************
Oceanography - http://www.britannica.com/eb/article-...
Seafloor Spreading Hypothesis - http://www.britannica.com/eb/article-...
Oceanic Ridge - http://www.britannica.com/eb/article-...
Marine Sediment - http://www.britannica.com/eb/article-...
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