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Aeolian Buttes
California
2
Erosion
2
Ethiopia
2
Field geology
2
Green Tuff
2
Ice
2
Iceland
2
Italy
2
Texas
2
Aa
1
Aeolian geology
1
Alteration channels
1
Andesite dikes
1
Atlantic Ocean
1
Austin
1
Auvergne
1
Axum
1
Ball-and-socket joints
1
Basalt lava flow
1
Brava
1
Breadcrust bomb
1
Bristol
1
British Columbia
1
Canada
1
Cantal volcano
1
Cape Verdes
1
Carmolli Brothers Quarry
1
Central High Desert
1
Chisel marks
1
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