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USGS CMG InfoBank Geology School: migration

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Title Comment Keywords
Impact of Magnetic Reversals 25:38 - 26:01 (00:23) / 0.5 MB "James Sadd", "magnetic reversal", "magnetic north pole", migration, "solar radiation"
Land Bridges 17:58 - 18:26 (00:28) / 0.6 MB "Ice Age", "land bridge", "sea level", coastline, landmass, Asia, "North American Continent", animal, humans, continent, migration
Geology School Keywords
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URL: http://walrus.wr.usgs.gov/infobank/programs/html/school/keypage/migrati.html
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Page Last Modified: Tue Feb 5 05:13:06 PST 2013  (chd)