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230828-40
Retreating glacier in valley tributary to a fjord, Greenland. Note the flowlines in the ice. (230828-40)
Download ImageIceberg and fjord, Greenland
Weather-fashioned Iceberg in fjord, Greenland (230828-15)
Download ImageIceberg and rising sun, Greenland
Iceberg and rising sun at mouth of Skjoldungen Fjord, Greenland (230828-1)
Download ImageErosion-control, Keflavik, Iceland
Boulders along coastline to protect against coastal erosion, Keflavik, Iceland. (230825-25)
Download ImageFlood-prevention levee, Keflavik, Iceland (vertical)
Grass-covered flood-prevention levee in residential neighborhood. Keflavik, Iceland (230825-10)
Download ImageFolded Paleoproterozoic gneiss, Greenland (vertical)
Folded PaleoProterozoic gneiss near Kangerlussaq, Greenland (230904-160)
Download ImageFolded gneiss cut by pegmatite dike, Greenland (vertical)
Folded PaleoProterozoic gneiss cut by pegmatite dike, near Kangerlussaq, Greenland (230904-178)
Download ImageFolded gneiss cut by pegmatite dike, Greenland
Folded PaleoProterozoic gneiss cut by pegmatite dike, near Kangerlussaq, Greenland (230904-169)
Download ImageMt. St. Helens crater, WA (Pan)
Panorama of Crater and rim of Mt. St. Helens stratovolcano, Washington, showing the recent lava domes, Spirit Lake, and in the background, Mt. Rainier. (IP2307-1611)
Download ImageEast wall of Mt. St. Helens, Washington
East wall of Mt. St. Helens stratovolcano showing post 500 year Kalama lavas, Washington (230730-37)
Download ImageSea stack, southern Oregon
Sea stack and incoming tide, southern Oregon coast (111207-79)
Download ImageRhyolite obsidian flow, Glass Mountain, CA
Aerial view of Glass Mountain rhyolite obsidian flow, looking WSW, northern California (111202-3)
Download ImageTufa deposits, Mono Lake, California
Tufa deposits and Mono Lake, Mono Lake Tufa State Natural Reserve, California (111119-43)
Download ImageTufa deposits, Mono Lake, California
Tufa deposits, Sierra Nevada mountains, and Mono Lake, Mono Lake Tufa State Natural Reserve, California (111119-30)
Download ImageTufa deposits, Mono Lake, California
Tufa deposits, Sierra Nevada mountains, and Mono Lake, Mono Lake Tufa State Natural Reserve, California (111119-15)
Download ImageSandy beach and fog, Oregon
Sandy beach, fog, and headlands, Washburn State Park, Oregon (110910-3)
Download ImageOlivine irich lherzolite inclusions in basalt
Olivine irich lherzolite (peridotite) inclusions in basalt. mm scale. (110725-16)
Download ImageGlacial arete, Colorado
Glacial arete, a narrow ridge between two cirques, McHenry’s Peak, Rocky Mountain National Park, Colorado. Bedrock is Proterozoic granite.(110716-58)
Download ImageAmargosa Valley in flood, California
Amargosa Valley, in the Mojave Desert, in flood, California (101230-52)
Download ImageAmargosa Valley in flood, California
Amargosa Valley, in the Mojave Desert, in flood, California (101230-48)
Download ImageMangrove swamp, south Florida
Mangrove swamp, Everglades National Park, southern Florida (101223-10)
Download Image
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