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!
Crest of Sierra Nevada, CA
Aerial view of crest and western slope of Sierra Nevada, California, the western edge of the Basin and Range Province. Image shows numerous cirques, headwalls, and U-shaped valleys of glacially carved granitic rock in the foreground. View southeastward. (170929-26)
Download ImageWest slope of Sierra Nevada, CA (vertical)
Aerial view of western slope of Sierra Nevada, California, the western edge of the Basin and Range Province. Image shows cirques, tarns (lakes), headwalls, and U-shaped valleys of glacially carved granitic rock in the foreground. View southeastward. (170929-25)
Download ImageWest slope of Sierra Nevada, CA
Aerial view of western slope of Sierra Nevada, California, the western edge of the Basin and Range Province. Image shows cirques, tarns and headwalls of glacially carved granitic rock in the foreground. View southeastward. (170929-23)
Download ImageWest slope of Sierra Nevada, CA (vertical)
Aerial view of western slope of Sierra Nevada, California, the western edge of the Basin and Range Province. Image shows cirques and headwalls of glacially carved granitic rock in the foreground. View southeastward. (170929-18)
Download ImageWest slope of Sierra Nevada, CA
Aerial view of western slope of Sierra Nevada, California, the western edge of the Basin and Range Province. Image shows cirques and headwalls of glacially carved granitic rock in the foreground. View southeastward. (170929-19) granodiorite
Download ImageSalt evaporation ponds, SF Bay, Cal
Salt evaporation ponds, San Francisco Bay, California. These wetlands, part of the Don Edwards National Wildlife Refuge, provide habitat for more than 70 species of birds. (170929-9)
Download ImageImbricated cobbles (pan)
coarse sediment deposited by moving water may become imbricated so that the long dimensions of the grains dip upstream. (IMG_1140)
Download ImageSea stack and Strait of Juan de Fuca
Sea stack and Strait of Juan de Fuca, Vancouver Island, Canada in background. Note eastward dip of bedding. (IMG_6307)
Download ImageSea stack and arch, WA (vertical)
Sea stack and arch eroded into sandstone of Hoh Assemblage, Olympic Coast, Washington. (IMG_6285f)
Download ImageThurston Lava Tube, Hawaii
Thurston Lava Tube on Kilauea volcano, Hawaii Volcanoes National Park, Hawai’i. (170920-165)
Download ImageDiamond Head and Honolulu, Hawaii
Aerial view of Diamond Head, a volcanic tuff cone and Honolulu, Hawaii. (170913s-12)
Download ImageLevee along Columbia River, Oregon
Flood-control levee along Columbia River, Oregon. (170517-3)
Download ImageBeach cobbles, Washington (square)
Beach cobbles, Washington coast (low res) (IMG_6203)
Download ImageCambrian Sandstone ledges, Montana
Flathead Sandstone. Basal Cambrian sandstone that was deposited during the Cambrian transgression. (170804-24)
Download ImagePegmatite dike cutting schist, Montana
Precambrian pegmatite dike cutting basement schist, Montana. (170804-11)
Download ImageNonconformity. SW Montana
Cambrian Flathead Sandstone overlies Precambrian basement schist, Montana (170804-3)
Download ImageCross-bedded Cretaceous sandstone, Montana
Cross-bedding in Cretaceous Kootenai Formation, Montana. (170802-13).
Download ImageArchean garnet schist, Montana
Almandine garnets in quartz muscovite schist, Montana (170802-10)
Download ImageConglomerate, Montana (vertical)
Basal conglomerate of the Cretaceous Kootenai Formation, SW Montana. (170802-8)
Download Image
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