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Pyroclastic deposits in crater
Pyroclastic deposits in crater of White Island, an active andesite volcano, New Zealand. (180110-21)
Download ImagePyroclastic deposits, White Island Volcano
Pyroclastic deposits, White Island Volcano, New Zealand. (180110-16)
Download ImageVolcanic Island, New Zealand (Pan)
White Island, an active andesite volcano in the Bay of Plenty, New Zealand. Note steam rising from crater. (180110-12)
Download ImageBasalt columns and seastack, New Zealand
Miocene Basalt columns and seastack, Murawei Beach, New Zealand
Download ImageTidal flats near Auckland, New Zealand
Aerial view of tidal flats and tidal channels near Auckland, New Zealand. (180105-20) tides, mudflats
Download ImageCreede Caldera, Colorado (Pan)
Caldera and resurgent dome. Creede Caldera, San Juan Mountains volcanic field, Colorado. (creedecalderapan)
Download ImageCliffs of ash flow tuff, Colorado
Cliffs of Fish Canyon Ash Flow Tuff, Central San Juan Volcanic Field, Colorado. (160914-41)
Download ImageCliffs of ash flow tuff, Colorado
Cliffs of ash flow tuff, Central San Juan Volcanic Field, Colorado. (160914-34)
Download ImageLarge block in ash flow tuff, Colorado
Large block in ash flow tuff, Central San Juan Volcanic Field, Colorado. (160914-33)
Download ImageLarge block in ash flow tuff with person
Geologist and large block in ash flow tuff, Central San Juan Volcanic Field, Colorado. (160914-31)
Download ImageLarge block in tuff (vertical)
Large block in ash flow tuff, Central San Juan Volcanic Field, Colorado. (160914-24)
Download ImageFish Canyon Ash flow tuff, Colorado
Fish Canyon Ash flow tuff, San Juan Mountains, Colorado (160913-23)
Download ImageFish Canyon Ash flow tuff, Colorado
Fish Canyon Ash flow tuff, San Juan Mountains, Colorado (160913-22)
Download ImageChemical alteration, Colorado
Colorful, chemically-altered volcanic rocks of Little Red Mountain of the San Juan Mountains, Colorado (160912-20)
Download ImageChemical alteration, Colorado
Colorful, chemically-altered volcanic rocks of Little and Big Red Mountains of the San Juan Mountains, Colorado (160912-19)
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Vesicles (gas bubbles) in basalt.
Vesicles (gas bubbles) in Pliocene age Servilleta Basalt, New Mexico. (160911-45)
Download ImageVesicle pipe in basalt
Pipe of vesicles (gas bubbles) in Pliocene age Servilleta Basalt, New Mexico. (160911-41)
Download ImageVesicles (gas bubbles) in basalt (vertical)
Vesicles (gas bubbles) in Pliocene age Servilleta Basalt, New Mexico. (160911-39)
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