Search for any geological feature below
–then click on the image to see a larger version in its correct format, a more detailed caption, and an ID number.
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SOME POINTERS:
Photos typically include their locations, so you can use locations as keywords too. You get more hits with shorter words, and fewer hits as you become increasingly specific with increasing numbers of keywords. It’s best to use singular rather than plural (eg “volcano” instead of “volcanoes”).
As some words are included in others (“salt” within “basalt,” for example) you might want to be more specific to avoid getting a bunch of irrelevant photos.
Or you can just scroll down and see the most recently added photos… Enjoy!
Lahar deposit, S. Colorado.
Lahar (volcanic mudflow) deposit in San Juan Mountains of Colorado. (Ig-67)
Download ImageBasalt overlying rhyolite, Idaho
Basalt overlying rhyolite at Shoshone Falls –near the city of Twin Falls, Idaho.
Download ImageEchinus Geyser, Yellowstone, Wyoming
Echinus geyser erupting, Norris Geyser Basin, Yellowstone National Park, Wyoming (Ig-65)
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Plug dome and Mono Lake (Vertical)
Panum Dome, a plug volcano and Mono Lake, California. (Ig-58)
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Bandelier Tuff, New Mexico (vertical).
The Bandelier tuff erupted 1.14 million years ago from the nearby Valles Caldera. (Ig-59)
Download ImageWelded tuff and vitrophyre, SE Cal.
Welded tuff and vitrophyre, SE California. 9.6 million year Rhodes Tuff. (Ig-61)
Download ImageOligocene tuff, Smith Rocks State Park, OR.
Oligocene tuff and Crooked River, Smith Rocks State Park, Note the basalt flow on the south side fo the river, Oregon. (Ig-60)
Download ImageCrater Lake and Wizard Island, Oregon
Caldera and cinder cone: Crater Lake and Wizard Island, Crater Lake National Park, Oregon. (Ig-53)
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Obsidian flow and South Sister, OR.
Obsidian flow and South Sister stratovolcano, Oregon (Ig-55).
Download ImageCaldera. Long Valley caldera, CA.
Aerial view of Long Valley caldera, Caldera. (Ig-57).
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Crater Lake and Wizard Island, Oregon
Crater Lake and Wizard Island, Oregon –a caldera and post-collapse cinder cone. Crater Lake National Park. (Ig-51)
Download ImageCrater Lake, a 7700 year old caldera.
Caldera and cinder cone: Crater Lake and Wizard Island, Oregon. Crater Lake National Park. (Ig-52)
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