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Now showing items 21-30 of 35
Air fall ash and tuff
(2009-03)
Magma mingling
(2009-04)
Pegmatites
(2009-04)
Gravity Work
(2009-04)
Shield volcanoes
(2009-03)
Diatremes
(2009-03)
Spatter
(2009-03)
Calderas
(2009-03)
Evaporites
(2009-04)
Dikes
(2009-03)