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Field geology
4
Igneous rocks
4
New Zealand
4
Sicily
Volcanic rocks
4
Volcanology
4
California
3
Etna
3
North Island
3
Vesuvius
3
Andesite
2
Arizona
2
Basalt
2
Canary Islands
2
Cape Verdes
2
Crater
2
Cretaceous limestone
2
Erosion
2
Germany
2
Hawaii
2
Iceland
2
Italy
2
Japan
2
Lava dome
2
Lava flow
2
Magma
2
Mexico
2
Mexico City
2
New Mexico
2
Oregon
2
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New Zealand
4
Etna
2
Fogo
2
Rapa
2
Rapa Nui
2
Augusta
1
Baker Mount
1
Byerly
1
Canada
1
Eldfell
1
Field Glacier
1
Fire Mountain
1
Fossa
1
Galapagos
1
Garibaldi
1
Greenland
1
Hafragilsfoss
1
Heimaey
1
Laki
1
Landmannalaugar
1
Medina
1
Mount Adams
1
Mount Baker
1
Osorno
1
Pacific
1
Salisbury
1
Valles
1
White Island
1
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