File:Guffey Volcanic Center (Thirtynine Mile Volcanic Field, Late Eocene; Park County, central Colorado, USA) (29893741906).jpg
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| Description |
(photo by Mary Ellen St. John) This is a view of the eroded remains of the Late Eocene-aged Guffey Volcanic Center, which consisted of coalesced stratovolcanoes. The volcanic rocks are mostly alkaline, including the scarce lava type shoshonite. The prominent peak near the center is McIntyre Mountain. The peak to the right of that is Castle Mountain. The somewhat flat-topped mountain at the far-right is Thirtynine Mile Mountain. The double-humped mountain just in front of that is Saddle Mountain. These mountains have lava flows and lahars (volcanic mudflows) that were originally in the flanks of the Guffey Volcanic Center's stratovolcano complex. Locality: Thirtynine Mile Volcanic Field overlook at Cripple Creek Granite outcrop, northern side of Guffey Road (= Rt. 102), about 2.7 road-miles west of the Guffey Road-Rt. 11 intersection, southeastern Park County, central Colorado, USA (looking from ~38º 46’ 09.64” North latitude, ~105º 20’ 12.31” West longitude) Most info. from: Meyer et al. (2004) - Field guide to the paleontology and volcanic setting of the Florissant fossil beds, Colorado. Geological Society of America Field Guide 5: 151-166. |
| Date | |
| Source | Guffey Volcanic Center (Thirtynine Mile Volcanic Field, Late Eocene; Park County, central Colorado, USA) |
| 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@N05/29893741906 (archive). It was reviewed on 6 December 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
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| current | 02:03, 6 December 2019 | | 3,460 × 1,496 (2.67 MB) | Ser Amantio di Nicolao (talk | contribs) | Transferred from Flickr via #flickr2commons |
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