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"Alligator skin"
1
"Stretch marks"
1
15th century obsidian flow
1
1739 rhyolite flow
1
1944 flow
1
Active volcano
Big Obsidian Flow
1
Boudinaged pumiceous layer
1
Broken glass
1
Buckling
1
California
1
Canary Islands
1
Cinque Denti
1
Colorado
1
Crocodile River
1
Cross section
1
Crystals
1
Davis Mountains
1
Eruption rate
1
Ethiopia
1
Fantale Volcano
1
Field geology
1
Flow direction
1
Flow lobe
1
Folds
1
Fossa Di Vulcano
1
Glacier
1
Glass Mountain flow
1
Glassy rhyolite
1
Iceland
1
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