Uinkaret Field

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  • Country
  • Subregion Name
  • Primary Volcano Type
  • Last Known Eruption
  • 36.38°N
  • 113.13°W

  • 1555 m
    5100 ft

  • 329010
  • Latitude
  • Longitude

  • Summit

  • Volcano

There are no activity reports for Uinkaret Field.

 Available Weekly Reports

There are no Weekly Reports available for Uinkaret Field.

Summary of eruption dates and Volcanic Explosivity Indices (VEI).

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
1100 ± 75 years Unknown Confirmed 1 Anthropology Little Springs

The following references are the sources used for data regarding this volcano. References are linked directly to our volcano data file. Discussion of another volcano or eruption (sometimes far from the one that is the subject of the manuscript) may produce a citation that is not at all apparent from the title. Additional discussion of data sources can be found under Volcano Data Criteria.

Best M G, Brimhall W H, 1974. Late Cenozoic alkalic basaltic magmas in the western Colorado Plateaus and the Basin and Range transition zone, U.S.A., and their bearing on mantle dynamics. Geol Soc Amer Bull, 85: 1677-1690.

Dalrymple G B, Hamblin W K, 1998. K-Ar ages of Pleistocene lava dams in the Grand Canyon in Arizona. Proc Nat Acad Sci, 95: 9744-9749.

Fenton C R, Webb R H, Pearthree P A, Cerling T E, Poreda R J, 2001. Displacement rates on the Toroweap and Hurricane faults: implications for Quaternary downcutting in the Grand Canyon, Arizona. Geology, 29: 1035-1038.

Hamblin W K, 1974. Late Cenozoic volcanism in the western Grand Canyon. In: Breed W J and Roat E C (eds) {Geol of the Grand Canyon}, Flagstaff: Museum of Northern Arizona, p 142-185.

McKee E D, Hamblin K W, Damon P E, 1968. K-Ar age of lava dam in Grand Canyon. Geol Soc Amer Bull, 79: 133-136.

Ort M, 2002. . (pers. comm.).

Ort M H, Elson M D, Anderson K C, Duffield W A, Samples T L, 2008a. Variable effects of cinder-cone eruptions on prehistoric agrarian human populations in the American southwest. J Volc Geotherm Res, 176: 363-376.

Sarna-Wojcicki A M, Champion D E, Davis J O, 1983. Holocene volcanism in the conterminous United States and the role of silicic volcanic ash layers in correlation of latest Pleistocene and Holocene deposits. In: Wright H E (ed) {Late-Quaternary Environments of the United States}, Minneapolis: Univ Minnesota Press, 2: 52-77.

Smith R L, Shaw H R, 1975. Igneous-related geothermal systems. U S Geol Surv Circ, 726: 58-83.

Wood C A, Kienle J (eds), 1990. Volcanoes of North America. Cambridge, England: Cambridge Univ Press, 354 p.

The Uinkaret volcanic field straddling the Grand Canyon contains cinder cones that have produced lava flows that repeatedly cascaded into the Grand Canyon, forming temporary lava dams up to 200 m high. Two of the most prominent landmarks are Vulcan's Throne, a cinder cone on the north rim, and Vulcan's Forge, a small volcanic neck erupted within the Colorado River, 1000 m below. Most of the field lies north of the Grand Canyon on the Uinkaret Plateau between the Toroweap and Hurricane faults. It is largely Pleistocene in age, and Vulcan's Throne has a cosmogenic helium age of about 73,000 years. Volcanic activity has continued into the Holocene. One lava flow, from Little Springs, south of Pliocene Mount Trumbull, has a cosmogenic helium age of 1300 /- 500 years BP. Pottery sherds dated at between 1050 and 1200 CE were found within the Little Springs lava flow, which occurred about the same time as the Sunset Crater eruption in the San Francisco volcanic field to the SE.