Download
grand canyon n.
Skip this Video
Loading SlideShow in 5 Seconds..
Grand Canyon PowerPoint Presentation
Download Presentation
Grand Canyon

Grand Canyon

164 Vues Download Presentation
Télécharger la présentation

Grand Canyon

- - - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

  1. Grand Canyon Jared Appelbaum, Sydney Merkin, Andrew Gottsegen, IzzyCalis

  2. Geological Origins • Colorado River formed the four plateaus • Dry climate caused erosional activities • Crystalline rocks formed • Magma rose into rocks, crystallizing to granite • Sediments and lava were deposited • Mountain formation tilted the rocks • Erosion left on the tilted rocks on the canyon • Marine movements formed thick layers • Widened from dry climate • Lack of moisture and storms created rock

  3. Natural History • Biome- semi-dry desert • Climate- • Summer (south rim) : 50-80 degrees F, (north rim) : cooler, 40-70 degrees F, thunder storms, (inner canyon) temperatures extremely high • Winter (south rim): snowy, foggy, (north rim): extreme snowfall • Spring/Fall: unpredictable- snowy, windy, cool, warm days with cool nights • Wildlife • Variety (bald eagle, golden eagle, mountain lion,turkey vulture, coyote)

  4. Endemic, Threatened, Endangered Species • Endemic (lives in only one place in the world) • Sentry milk-vetch plant • Agave (from Greek word “noble”- imposing structure) (flower) • Agave utahensis (noble from Utah)- Greek meaning (flower) • Arabisgracilipes (rock cress) (flower) • Threatened • Goshawks • Spotted owls • Endangered • Sentry milk-vetch plant

  5. Human History • Obstructed vision • Nitrogen and sulfur • Mercury • Biggest canyon, asthenic value, habitat • National Park Service Organic Act • National Park Service • Rich, diverse fossil • Geological, paleontological, archeological and biological resources • Ecosystems

  6. Threats and Cures Threats Cures Reduce the burning of fossil fuels Anti-Uranium mining groups • Air pollution • Poor air quality • Elevated ozone layers • Uranium mining

  7. Bibliography • http://www.nps.gov/grca/naturescience/geologicformations.htm • http://www.nps.gov/grca/naturescience/naturalfeaturesandecosystems.htm • http://www.thetrain.com/grand-canyon/weather/ • http://www.arizona-leisure.com/grand-canyon-animals.html • http://www.nps.gov/grca/naturescience/birds.htm • http://www.nps.gov/grca/naturescience/upload/plant_guide_1.pdf • http://www.nps.gov/grca/parkmgmt/vrp.htm