Search for any geological feature below
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Hummocky ground, Iceland
Hummocky ground, a periglacial feature from repeated freezing and thawing, in Iceland (180906-2)
Download ImagePalagonite and tephra, Iceland (vertical)
Palagonite and tephra, Iceland (180905-151)
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Snæfellsjökull volcano and glacier, Iceland (vertical)
Snæfellsjökull sratovolcano and glacier cap, Iceland. Aa basalt lava flow in foreground. (180905-119)
Download ImageSnæfellsjökull volcano and glacier, Iceland
Snæfellsjökull sratovolcano and glacier cap, Iceland. Aa basalt lava flow in foreground. (180905-118)
Download ImageHolocene lava flow front and stream, Iceland
Front of Holocene basaltic lava flow and stream, Iceland (180905-112)
Download ImageSnæfellsjökull volcano and glacier, Iceland
Snæfellsjökull sratovolcano and glacier cap, Iceland. Aa basalt lava flow in foreground. (180905-105)
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Spring-fed streams, Iceland
Spring-fed streams, Iceland, issuing from beneath lava flows (180905-63) ,
Download ImageRoche Moutonee, Iceland
Roche Moutonee near Bogarnes, Iceland. Asymmetry of features indicates glacial ice was moving from right to left (N to S) (180904-106)
Download ImageTidal flat and Roche Moutonee, Iceland
Tidal flat and Roche Moutonee near Bogarnes, Iceland. Asymmetry of features indicates glacial ice was moving from right to left (N to S) (180904-104)
Download ImageRoche Moutonee, Iceland
Roche Moutonee near Bogarnes, Iceland. Asymmetry of features indicates glacial ice was moving from right to left (N to S) (180904-102)
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West edge of W Rift Zone, Iceland
West edge of western Rift Zone, Iceland, view southward. (180906-34)
Download ImageHaystack Rock at Cannon Beach, Oregon
Haystack Rock at Cannon Beach, Oregon. The sea stack marks the vent area of an undersea volcano that was fed by magma in turn fed by flows of the Columbia River Basalt Group. (170826-19)
Download ImageCross-bedded sandstone, Oregon
Miocene Astoria Formation along base of sea cliff and road at Hug Point, Oregon. Note the abundant cross-bedding (180728-118)
Download ImageAlcove and tidepool, Oregon Coast (square)
Alcove and tide pool eroded into Miocene Astoria Formation near Hug Point, Oregon. Upward limit of barnacles indicates mean high tide level. (180728-124)
Download ImageBasaltic sea cliffs, Oregon
Basaltic sea cliffs at Neahkahnie Mountain, Oregon coast –intrusive basalt of the Columbia River Basalt Group. (180728-165)
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Cross-bedded sandstone, Oregon
Cross-bedded sandstone of the Miocene Astoria Formation, Hug Point, Oregon. Photo taken from small road (circa 1800s) blasted along base of cliff. (180812-72)
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