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Field geology
2
Germany
Igneous rocks
2
Mexico
2
Moeraki Point
2
New Zealand
2
North Island
2
SW Greenland
2
Volcanic rocks
2
Volcanology
2
Alpine Texas
1
Andesite dike
1
Augusta
1
B. G. J
1
Basaltic dike
1
Big Bend National Park
1
Bilateral symmetry
1
Brian Geoffrey Johnson Upton
1
California
1
Canada
1
Cat's Nick
1
Cerro Castollon
1
Chisos Formation
1
Christmas Mountains
1
Colorado
1
Composite dike
1
Contact surface
1
Cooling surfaces
1
Cote de Neiges
1
Cougar point tuff
1
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