Mystery of the Badlands - PowerPoint PPT Presentation

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Mystery of the Badlands

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Title: PowerPoint Presentation Author: LuAnn Thompson Last modified by: LuAnn Thompson Created Date: 9/15/2005 12:39:15 AM Document presentation format – PowerPoint PPT presentation

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Learn more at: https://ohp.parks.ca.gov
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Title: Mystery of the Badlands


1
Mystery of the Badlands.
2
  • Anza-Borrego Desert State Park
  • reveals stories from the past

3
How good were your science hypotheses for
  • Why are there so many fossils in Southern inland
    California?

4
  • Lets take a virtual field trip back in time with
    help from our scientists

5
What formed this landscape?
6
Follow the Colorado River by connecting the stars
7
The Colorado River emptied into the ocean in the
area between the stars for the last three million
years
8
Can you see the red sandstone areas of the
Colorado Plateau between the stars?
9
The Colorado Plateau was lifted up 6000 feet by
magma from below!
10
Waterit follows a downhillpath!
11
Today, you see these landforms throughout
Arizona and Utah.
12
The Colorado River flows through the Grand Canyon
13
Its tributaries carved out Bryce Canyon
14
Water carved these fairytale landscapes!
Hoodoos of goblin valley
15
A powerful force
16
The river dropped its sediments across a large
area that today we call
Photo by Jim Wark
17
The Salton seaThe Imperial Valley
Photo by
Photo by Jim Wark
18
And the Borrego badlands.
19
Colored layers of sediment from the red, yellow
and orange sandstones of the Colorado Plateau...
20
With a fossil history from the past 3 million
years!
21
Preserved and protected by the Anza-Borrego
Desert State Park.
22
These formations attract scientists from around
the world
23
And what have they found?
24
The fossils say that this was once a very
different place!
Artist John Francis
25
It was warmer and wetter
Artist John Francis
26
Giant tortoises lived here!
Artist John Francis
27
Can you imagine the desert like this?
Artist John Francis
28
It changed from a shallow inland sea 5 million
years ago
Artist John Francis
29
To lakes and streams with patches of forests
and..
Artist John Francis
30
large grassland savannahs. Then the climate
slowly became warmer and drier..
Artist John Francis
31
until it became the desert we see today.
32
But the fossils revealthe story of the past
33
Yesterdays lakes and streams..Todays fossil
beds
34
Science is for the curious Each new
discovery creates some new answers and many
new questions!
35
  • Murals of past scenes by John Francis
  • Aerial photos donated
  • by Jim Wark
  • Curriculum development supported by Anza-Borrego
    Foundation and Institute and California State
    Parks
  • Text and other photos by LuAnn Thompson
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