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!
Upper Silurian crinoid (Sea Lily)
Crinoid (upper Silurian) Scyphocrinites sp. Photo is about 15 cm across. (30-12776)
Download ImageJurassic ammonite
Jurassic ammonite (Audiloceras sp). Photo is about 25 cm across. (30-12788)
Download ImageMt. Hood stratovolcano, Oregon (vertical)
Aerial view of Mount Hood stratovolcano, Oregon. Crater Rock, which intruded during the most recent eruptive period, forms the lava dome in the crater. (30-12697).
Download ImagePyritized Jurassic ammonite
Jurassic ammonite (Dactylioceras semiannulatum). (30-12763)
Download ImageMt. Hood stratovolcano, Oregon
Aerial view of Mount Hood stratovolcano, Oregon. Crater Rock, which intruded during the most recent eruptive period, forms the lava dome in the crater. (30-12700).
Download ImageDike in caldera wall, Crater Lake, OR
Dike in caldera wall, Crater Lake National Park, Oregon. (30-11421)
Download ImageGraded beds
Graded beds typically form by deposition from suspension. IN this rock, top is up. (30-12499)
Download ImageMt. Hood stratovolcano, Oregon (vertical)
Aerial view of Mount Hood stratovolcano, Oregon. Crater Rock, which intruded during the most recent eruptive period, forms the lava dome in the crater. (30-12699).
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Folded Banded Iron Formation
Proterozoic Banded Iron Formation, folded into asymmetric anticline (30-11555).
Download ImageDikes in caldera wall, Crater Lake
Dikes in caldera wall, Crater Lake National Park, Oregon. (30-11472)
Download ImageTalus deposit, Crater Lake, Oregon
Talus deposit from erosion of caldera walls, Crater Lake National Park, Oregon. (30-11413)
Download ImageJoint-controlled slot, Montana
Stream flowing through Joint-controlled slot, Sunrift Gorge, Glacier National Park, Montana. (30-10384)
Download ImageDike in caldera wall, Crater Lake (vertical)
Dike in caldera wall, Crater Lake National Park, Oregon. (30-11403)
Download ImageTalus Cones and Llao Rock, Crater Lake, OR
Talus cones and Llao Rock, Crater Lake caldera, Crater Lake National Park, Oregon. (30-11388)
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Research vessel on Crater Lake, OR (vertical)
Research boat on Crater Lake. Crater Lake National Park, Oregon.(30-11345)
Download ImageMolar tooth structure in dolomite
Molar tooth structure in Helena Dolomite, Glacier National Park, Montana. (30-1066).
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