02310.jpg
Illustration of internal structure of volcano;
Photographer unknown;
1969;
Volcanics
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02311.jpg
Craters in action on Hekla's southwest shoulder, Iceland;
Photographer unknown;
No date
|
02312.jpg
Paricutin, Mexico - one week old, first lava flow;
DE White;
1940's
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02313.jpg
Paricutin, Mexica - five months old, at night, showing lava fountain;
DE White;
1943;
Volcanics
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02314.jpg
Paricotin, Mexica - eight month old volcano shows side vent and lava flow;
DE White;
October 1943
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02315.jpg
Close up of Perlite in Yellowstone National Park;
RG Johnsson;
1964
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02316.jpg
Perlite boulders with Fireweed;
RG Johnsson;
1964
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02317.jpg
Close up of glassy obsidian at Obsidian Cliff;
RG Johnsson;
1964;
Volcanics
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02318.jpg
View of south face of Obsidian Cliff;
John Good;
1965;
Volcanics
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02319.jpg
South face of Obsidian Cliff with patches of snow;
Photographer unknown;
1976
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02320.jpg
Obsidian Cliff;
Photographer unknown;
1976
|
02321.jpg
Obsidian Cliff;
Photographer unknown;
1976
|
|
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02324.jpg
Flow structure in Madison Plateau flow, rhyolite;
John Good;
1965
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02325.jpg
Madison Plateau flow (rhyolite) in the Firehole Canyon;
John Good;
1965
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02326.jpg
Rubble at base of rhyolite flow in Firehole Canyon;
John Good;
1965
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02327.jpg
Weathered rhyolite rock in geyser basin;
GT Morrison;
1971
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02328.jpg
Columnar jointing in rhyolite along the Madison River;
John Good;
August 1964
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02329.jpg
Close view of columnar jointing in rhyolite along the Madison River;
Bryan Harry;
1964
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02331.jpg
Basalt columns at Sheepeater Cliff;
Photographer unknown;
No date
|
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