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USGS CMG InfoBank Geology School: migration Skip navigational links Search InfoBank     Dictionaries: The USGS and Science Education   USGS Fact Sheets   Topics   Keywords   Data Dictionary   Metadata Dictionary   Computer Terminology   Digital Formats InfoBank Terms: Activity ID   activity overview   crew   formal metadata   lines   metadata   NGDC   port stops   project/theme   region   ship   stations   time   virtual globe   year   Data Types: bathymetry   geodetic positioning   gravity   ground penetrating radar   imagery   LIDAR   magnetics   metering equipment   navigation   samples   seismic   definitions disclaimer   Data Formats: ARC coverage   E00   FGDC metadata   gridded/image   imaging   material   scattered/swath   Shapefile   vector/polygon       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 Skip footer navigational links InfoBank   Menlo Park & Santa Cruz Centers   St. Petersburg Center   Woods Hole Center   Coastal and Marine Geology Program   Geologic Information   Ask-A-Geologist   USGS Disclaimer

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U.S. Department of the Interior | U.S. Geological Survey URL: http://walrus.wr.usgs.gov/infobank/programs/html/school/keypage/migrati.html Page Contact: InfoBank staff Page Last Modified: Wed Aug 27 06:12:54 PDT 2008  (wcs)