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4:10 360 to 320 million yrs ago warm, shallow sea
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Classroom Contents
Geological History and Formation of the Grand Canyon - A 2 Billion Year Journey
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- 1 0:00 Grand Canyon Geology Intro
- 2 0:58 Over 1.7 billion yrs ago Nuna supercontinent
- 3 2:05 1.2 to 0.8 billion yrs ago Rodinia & Snowball Earth
- 4 3:20 540 to 360 million yrs ago changing sea level
- 5 4:10 360 to 320 million yrs ago warm, shallow sea
- 6 6:32 320 to 280 million yrs ago changing sea level
- 7 7:15 300 to 250 million yrs ago desert dunes
- 8 8:35 Final Rock Deposition Timeline
- 9 8:56 The Great Unconformity over 1 billion yrs missing!
- 10 11:21 How & When the Canyon was cut
- 11 12:56 Fun Facts about the Grand Canyon!
- 12 17:05 Outtakes ;
