Geosphere; February 2008; v. 4; no. 1;
p. 183-206; DOI: 10.1130/GES00133.1
© Geological Society of America
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Figure 8. Map of the southern Uinkaret volcanic field showing the location of all reliable dates younger than 140 ka. Ages younger than 51 ka are shown in yellow. Circa 100 ka lava flows are interpreted to have entered the canyon between river miles 182 and 185 and flowed downriver to at least river mile 192. Cosmogenic dates on the Toroweap Terrace and Vulcan's Throne indicate volcanism along the Toroweap fault during this time period; however, it is unclear as to what distance (if any) these flows traveled downriver.
Copyright © 2008 by Geological Society of America
