Search for any geological feature below
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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.
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Mangrove swamp, SW Florida Everglades
Aerial view of mangrove swamp and islands along coastline, Everglades National Park. Gulf of Mexico in background. (160330-14)
Download ImagePumice -close-up view (pan)
pumice, showing frothy glass shards that form walls around the vesicles. (171026-7pumice)
Download ImageProterozoic stromatolites
Stromatolites in limestone of Proterozoic Crystal Spring Formation, SE California. (160321-23)
Download ImageTurbidite deposits near Pacifica, California.
Turbidites, made of alternating beds of sandstone and shale, near Pacifica, California. (150828-7)
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Graphic granite
Graphic granite, produced from simultaneous growth of quartz and orthoclase feldspar (170820-1) k-spar, crystals, kspar
Download Imagebasaltic dike, Oregon High Cascades
basaltic dike cutting volcanic rock of Oregon High Cascades (170716-25)
Download ImageMt. Jefferson and glacial moraine, Oregon
Mt. Jefferson stratovolcano of the Oregon High Cascades and glacial moraine in foreground. (170716-3)
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Headlands and beach, Oregon
Headlands and beach, Oregon. Lighthouse sits on Heceta Head in background. (170618-27)
Download Imagebreaking waves on headland, Oregon
breaking waves on headland, Oregon coast (170618-5)
Download ImageTombolos, connected to coast at low tide, Oregon.
At Seal Rock, Oregon, an intrusion of Columbia River Basalt Group forms a dike oblique to the coastline. Several of its larger exposures form tombolos that connect to the mainland during low tide. (130428-60
Download ImageMajor Rock Groups (pan)
Samples of each of the 3 major rock groups. left to right: sedimentary (sandstone), igneous (granite), metamorphic (gneiss) (ip4082)
Download ImageDrowned tree in lava-dammed lake, Oregon
2700 year old tree drowned and preserved in Clear Lake, Oregon. Clear Lake formed behind a lava flow of that age. (171016-46)
Download ImageDrowned tree in lava-dammed lake, Oregon
2700 year old tree drowned and preserved in Clear Lake, Oregon. Clear Lake formed behind a lava flow of that age. (171016-45)
Download ImageDrowned tree in lava-dammed lake, Oregon
2700 year old tree drowned and preserved in Clear Lake, Oregon. Clear Lake formed behind a lava flow of that age. (171016-35)
Download ImageSpring-fed lake, Oregon
Spring water issuing from basaltic lava flows at Tamolitch Pool on the McKenzie River, Oregon. (171016-23f)
Download ImageSprings issuing from basalt (Pan)
Spring water issuing from basaltic lava flows at Tamolitch Pool on the McKenzie River, Oregon. (171016-16f)
Download ImageMafic inclusion in granitic rock
Partially absorbed mafic inclusion in mega-crystic granitic rock (170705-7)
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