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USGS CMG InfoBank Geology School: greenstone 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 Ancient Heart of North America 02:44 - 03:48 (01:04) / 1.9 MB "Canadian Shield", "Superior Province", craton, granulite, greenstone, "metamorphic rock", erosion, "volcanic rock", "sedimentary rock", "island arc" Composition of the Continental Crust 05:05 - 05:53 (00:48) / 1.2 MB "granitic rock", greenstone, magma, crust, volcanism, lithosphere, sediment Changes in the Lithosphere 05:53 - 06:41 (00:48) / 0.7 MB lithosphere, plate, "continental margin", "tectonic activity", convection, greenstone, protocontinent, mantle, "Jason Saleeby" 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/greenstone.html Page Contact: InfoBank staff Page Last Modified: Tue Dec 16 06:28:43 PST 2008  (wcs)