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USGS CMG InfoBank Geology School: crater 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 Why We Find Few Craters on Earth 07:56 - 08:17 (00:21) / 0.9 MB "impact crater", crater, Earth, erosion Eruptions From Rift Zones 06:05 - 06:45 (00:40) / 1.0 MB volcano, eruption, crater, "shield volcano", Hawaii, fissure, "rift zone", gravity, stress, pressure, magma, "lava flow", "summit vent", Kilauea Volcanoes Die With Changes In Plate Boundaries 13:20 - 14:07 (00:47) / 0.8 MB "James Sadd", volcano, "convergent plate margin", "Panam Crater", gas, eruption, crater, pumice, magma, vent, plug, dome, obsidian, viscosity, silica Volcanic Domes 14:07 - 14:44 (00:37) / 1.3 MB "volcanic dome", "composite volcano", "Mount Saint Helens", eruption, crater, dome, "volcanic ash" Noverupta 17:50 - 18:26 (00:36) / 0.8 MB eruption, "Mount Katmai", Alaska, volcano, "National Geographic Expedition", Noverupta, "lava flow", dome, crater, caldera, magma, vent 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/crater.html Page Contact: InfoBank staff Page Last Modified: Tue Dec 16 06:28:34 PST 2008  (wcs)