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click photo for larger file
Basalt lava flows
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Photographer: Russell Towle
ID: 0000 0000 0505 0629 (2005-05-08)Copyright © 2005 Russell Towle
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INFORMATION PROVIDED WITH THE PHOTO
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date of photo Aug 8, 2001
location
Upper Foresthill Divide (Placer County, California, US)notes The upper basin of the North Fork American is ringed by a series of peaks, formed, principally, by andesitic lahars of the Mio-Pliocene Mehrten Formation. Beneath these 'young volcanics' are various types of much older 'basement' rocks. Here, what appears to be two lava flows filled a valley incised into granitic basement. Subsequent erosion exposed the basement valley and lava flows in cross-section. Elevation, ~8000'.camera Nikon 990
contributor's ID # DSCN0019.JPG photo category: Landscape - habitat
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Using this photo The thumbnail photo (128x192 pixels) on this page may be freely used for personal or academic purposes without prior permission under the Fair Use provisions of US copyright law as long as the photo is clearly credited with © 2005 Russell Towle.
For other uses, or if you have questions, contact Russell Towle russelltowle[AT]gmail.com. (Replace the [AT] with the @ symbol before sending an email.) |
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