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File:Basalt (Quaternary; Ice Springs Crater, Millard County, Utah, USA) (27612652358).jpg

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Basalt from the Quaternary of Utah, USA. (public display, Geology Department, Wittenberg University, Springfield, Ohio, USA)

This is a surface sample from a basalt lava flow in Utah's Black Rock Desert. The rock has been oxidized during weathering to a dark brown color.

Accompanying exhibit signage refers to this specimen as "pahoehoe lava" (pronounced "pa-hoy-hoy"). Pahoehoe was originally a Hawaiian word, but is now an English word in geology. Pahoehoe lava flows have smooth or ropy top surfaces. This sample has numerous twisted ridges.

Locality: lava flow near Ice Springs Crater, Black Rock Desert, west of the town of Fillmore, eastern Millard County, western Utah, USA
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Source Basalt (Quaternary; Ice Springs Crater, Millard County, Utah, USA)
Author James St. John

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This file is licensed under the Creative Commons Attribution 2.0 Generic license.
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This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/27612652358 (archive). It was reviewed on 10 October 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.

10 October 2019

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current00:22, 10 October 2019Thumbnail for version as of 00:22, 10 October 20193,532 × 1,836 (4.19 MB)Ser Amantio di Nicolao (talk | contribs)Transferred from Flickr via #flickr2commons

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