Death Valley Death Valley Chris Menard Death Valley

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Death Valley Death Valley Chris Menard Death Valley Powered By Docstoc
					Death Valley


       Chris Menard
Death Valley -Quick Facts:
 Hottest, driest, and lowest
 Badwater Basin:
     282 ft. (86m) below sea level
 134° F (56.7 °C) recorded in 1913
 Mean, annual precipitation around 1.5 in
  (3.8cm) per year
Geologic Features
 Relatively recently formed
 Part of the Basin and Range topography
 23 formations of sedimentary units
Geologic history- highlights
 Oldest rocks – at least 1700 million years old
 Marine deposition 1200-800 mya
 Rifting
 Subduction in the Pacific
 Basin and Range formation extends to create
  Death Valley 2-3 mya
 Lakes during the ice ages
Faults
 Offer clear evidence of extending crust
 Sierra Nevada moving westward.
 Most strike-slip faults are right-lateral
 Normal faults
History of Death Valley
 Four known Native American cultures
     Nevares Spring People ≈7000 BCE
     Mesquite Flat People ≈3000 BCE
     Saratoga Spring People ≈0 CE
     Timbisha (Shoshone) ≈1000 CE
Forty-Niners
 First wagons – Christmas Day 1849
 Unable to find a pass for a few weeks
 “Good-bye, Death Valley”
 Death Valley in ’49 – William Lewis Manly
 Evidence of silver
Prospecting
 Lost Gunsight
   Silver Lode
 Death Valley
  Scotty
 Ores:
     Evaporites
          Salts, borate, talc
     Metals
          Copper, gold, lead, silver
 Shams and busts
Death Valley Scotty
 B: Cynthiana, KY, Sep. 20, 1872
 Took a job with the Harmony Borax Works
 1888, joined the Wild West Show – stunt rider
 Scammed a NY businessman.
 Broke train speed record
 More scams
 A play
 Revealed as a fraud
 Still scammed a business by the name of Johnson
More on Death Valley Scotty
 Eventually revealed that his mine didn’t exist
 Built “Scotty’s Castle”
 Became a tourist attraction
 In 1970, Scotty’s Castle bought by NPS
Formation of Park
 National Monument in 1933 by Hoover
 CCC worked in Death Valley until early ’40s
 Strip and open pit mining
 Mining in Parks Act
 Biosphere Reserve in 1984
 National Park in 1994
    Largest national park in the
     contiguous U.S. at 1.3
     million acres
Sources
 http://wrgis.wr.usgs.gov/parks/deva/index.html
 http://en.wikipedia.org/wiki/
 http://www.americanwest.com/deathvalley/
 http://www.nps.gov/deva/

				
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