Set 5: Denver Basin formations
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Last updated 5:16 PM on 1/22/26
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13 Terms
1
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Fountain Fm.
Carboniferous, Ancestral Rockies
2
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Lyons Sandstone
Permian, Sand Planet
3
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Lykins Fm.
Permian, Slimy Shoreline
4
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Morrison Fm.
Jurassic, Long Neck Meadow
5
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Dakota Sandstone
Cretaceous, Colorado's East Coast
6
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Pierre Shale
Cretaceous, Submarine Colorado
7
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Fox Hills Sandstone
Cretaceous, Colorado's last beaches
8
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Laramie Formation
Cretaceous swamps
9
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D1
Crosses K-T: Finally the Rockies, After Armageddon, First Rainforest
10
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D2 (with the Paleosol)
Crosses P-E: Red Dirt World
11
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Castle Rock Rhyolite
Eocene, Rockies Explode
12
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Castle Rock Conglomerate
Eocene, Castle Rock floods
13
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Quaternary sediments
Ice Age Summer
Note 
Flashcards (34)