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Vesicles and pumice
(2009-03)
Joints in igneous rocks
(2009-03)
Carbonatites
(2009-07)
Pillow lava, hyaloclastite and peperite
(2009-03)
Calderas
(2009-03)
Dikes
(2009-03)
Sills and laccoliths
(2009-04)