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Death Valley

Published on Aug 11, 2016

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PRESENTATION OUTLINE

1.

Death Valley

 A Desert Biome
Photo by szeke
2.

North America, West Coast

3.

36.5054° N, 117.0794° W

4.

227km from Las Vegas

Death valley is only 
Photo by wbeem
5.

Arid/Desert

The yellow zone below 
6.

Hottest place on earth

top temp 57 degrees C (in 1913) 
Photo by bertdennisonphotography
7.

Lowest place?

86 metres below sea level 
Photo by Jon.Chang
8.

Annual precipitation in cms

9.

an ancient river

Death Valley is evidence of 
10.

Death Valley Formation

  • Bedrock formed in ancient seas 1.7 biolion years ago
  • Near the boundary of Tectonic plates - uplift and volcanism 65million years ago
  • Valley floor slipped to construct ridges
  • Lakes and erosion prior to the last Ice Age shaped the valley
  • Lakes disappeared 10 000 years ago leaving large salt deposits
  • The basin continues to sink and mountains to rise even today
Photo by bertdennisonphotography
11.

Sand dunes

some are used for sand boarding 
Photo by sandy.redding
12.

fringed-toed lizard

adapted for living on sand dunes 
Photo by alumroot
13.

Desert Foothills

Rocky escarpments 
Photo by doritweber
14.

Pallid Bat

nocturnal, living in crevices 
Photo by minicooper93402
15.

Salt flats

200 square miles of salt 
Photo by admckown
16.

little life

other than salt resistant lichen 
Photo by weesam2010
17.

Springs

home to engangered species 
Photo by USFWS Pacific Southwest Region
18.

Devil's Hole

Water filled cavern 
Photo by www78
19.

Untitled Slide

20.

Pupfish

Devil's Hole 
Photo by USFWS Pacific Southwest Region
21.

Peat mining

conducted in the Ashdown area of Death Valley 
Photo by PacificLegalFoundation
22.

Peat extraction

a fuel for electricity generation 
Photo by far closer
23.

Reduction in water

  • drilling of wells
  • less water
  • reduction of habitats
  • chemical changes
Photo by Anthony Quintano
24.

Conservation

  • hydrograph measures water levels
  • refugia populations
  • Federal US law limits water pumping
  • Area established as a wildlife refuge
Photo by mypubliclands
25.

Sources

Photo by gandhiflower
26.

Greetings from Death Valley

The Hottest place on earth
Photo by Jon.Chang

Steven Caldwell