File:Pahoehoe lava (Carey Flow, Upper Pleistocene, ~12.08 ka; Craters of the Moon Lava Field, Idaho, USA) 3.jpg
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English: Weathered pahoehoe basalt from the Pleistocene of Idaho, USA.
Southern Idaho’s Snake River Plain represents the track of the Yellowstone Hotspot. Yellowstone is currently located in northwestern Wyoming. In the geologic past, the center of Yellowstone volcanism was in southern Idaho. Before that, it was located in southeastern Oregon. Eight separate, large, dark-colored lava fields cover portions of the modern Snake River Plain: Shoshone Lava Field, Craters of the Moon Lava Field, Wapi Lava Field, Kings Bowl Lava Field, Cerro Grande Lava Field, North Robbers Lava Field, South Robbers Lava Field, and Hell’s Half Acre Lava Field. These lavas erupted during the late Pleistocene and Holocene, well after the Yellowstone Hotspot “migrated” to the northeast. The lavas are so young that little vegetation covers them. Portions of the Snake River Plain's basaltic lava fields have been designated as Craters of the Moon National Monument. The flows & cones in the Craters of the Moon Lava Field range in age from ~15 ka to ~2 ka. The landscape is harshly beautiful and provides an excellent opportunity to closely examine terrestrial basalt volcanism. Seen here is ~12,000 year old basalt with a ropy top surface. Lava flows having smooth or ropy top surfaces are referred to as pahoehoe (pronounced "pa hoy hoy"), originally a Hawaiian word. Stratigraphy: Carey Flow, Craters of the Moon Lava Field, upper Upper Pleistocene, ~12.08 ka Locality: southern side of Route 20 / 26, west of Craters of the Moon National Monument, Snake River Plain, Blaine County, southern Idaho, USA |
| Date | |
| Source | https://www.flickr.com/photos/47445767@N05/53252989259/ |
| Author | James St. John |
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This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/53252989259. It was reviewed on 16 October 2023 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
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| current | 21:44, 16 October 2023 | | 3,088 × 1,916 (4.62 MB) | Ser Amantio di Nicolao (talk | contribs) | Uploaded a work by James St. John from https://www.flickr.com/photos/47445767@N05/53252989259/ with UploadWizard |
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