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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Rounded river boulders, Oregon
Rounded boulders and cobbles along North Fork Willamette River, Oregon. (IP-1045)
Download ImageCrater Lake caldera, Oregon (Pan)
Crater lake fills the caldera of Mt. Mazama, a Cascade stratovolcano that erupted catastrophically 7700 years ago. Wizard Island, an andesitic cinder cone, forms the island. Crater Lake National Park, Oregon. (IP-0533)
Download ImageHand samples of metamorphic rocks
From left to right (in order of increasing grade) slate, phyllite, schist, gneiss. (Met-01)
Download ImagePorphyritic andesite
Hand specimen of porphyritic andesite with plagioclase phenocrysts (ip4094)
Download ImageBandelier Tuff, Jemez Mtns, New Mexico
Cliffs of 1.14 million year Bandelier Tuff, erupted from Valles Caldera in the Jemez Mountains, New Mexico. (160909-40)
Download ImageBandelier Tuff, Los Alamos, New Mexico
1.14 million year Bandelier Tuff erupted from Valles Caldera. (160909-18)
Download ImageBandelier Tuff, Los Alamos, New Mexico
1.14 million year Bandelier Tuff erupted from Valles Caldera, New Mexico. (160909-12)
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Mangrove swamp, SW Florida
Aerial view of mangrove swamp, Everglades National Park, Florida (160330-240)
Download ImageSand deposits on island, SW Florida
Aeria view of sand deposits on island in Everglades National Park, Florida (160330-228).
Download ImageSand deposits on island, SW Florida
Aeria view of sand deposits around island in mangrove swamp, Everglades National Park, Florida (160330-228).
Download Imagesand shoal, SW Florida Everglades
Aeria view of sand shoal and islands in mangrove swamp, Everglades National Park, Florida (160330-222). beach, bar
Download ImageSand deposits on island, SW Florida
Aeria view of sand deposits around island in mangrove swamp, Everglades National Park, Florida (160330-212).
Download ImagePavilion Key, SW Florida Everglades
Aerial view of Pavilion Key, Everglades National Park, Florida. Gulf of Mexico in background. (160330-204)
Download ImageTidal flat and mangrove swamp, Florida Everglades.
Aerial view of tidal flat and mangrove swamp, Everglades National Park, Florida. (160330-183)
Download ImageLostman’s Key, Florida Everglades
Aerial view of Lostman’s Key and First Bay, Everglades National Park, Florida. (160330-180)
Download ImageMangrove swamp, SW Florida
Aerial view of mangrove swamp, Everglades National Park, Florida (160330-164)
Download ImageLow-gradient river, Florida Everglades
Aerial view of low-gradient river, Everglades National Park, Florida. Gulf of Mexico in background. (160330-155)
Download ImageLow-gradient river, Florida Everglades
Aerial view of low-gradient river, Everglades National Park, Florida. Gulf of Mexico in background. (160330-110)
Download ImageMangrove swamp, SW Florida Everglades
Aerial view of island in mangrove swamp, Everglades National Park, Florida (160330-95)
Download ImageLow-gradient river, Florida Everglades
Aerial view of low-gradient river, Everglades National Park, Florida. Gulf of Mexico in background. (160330-85)
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