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7:03 Increased Aridity & Exposure of Wood
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Classroom Contents
Geologic History of the Petrified Forest National Park - From Ancient Forest to Desert
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- 1 0:00 Intro To Petrified Forest!
- 2 0:31 Triassic World ~225 Millions Yrs Ago
- 3 1:25 Local Life River Ecosystem
- 4 1:36 Global Context Ocean Life
- 5 2:13 Formation of These Colorful Rock Layers!
- 6 3:17 How These Forests Got Petrified
- 7 4:18 Why Wood is Perfect for ‘Petrification’
- 8 5:58 Break up of Pangea & Erosion
- 9 6:27 Mountain Building & Uplift
- 10 7:03 Increased Aridity & Exposure of Wood
- 11 7:46 Exciting Mysteries Remain!
- 12 8:40 Outtakes ;
