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Data from the Global Volcanism Program of the Smithsonian Institution
Details for: Markagunt Plateau
A group of basaltic cinder cones and lava vents on the Markagunt Plateau east of Cedar Breaks National Monument has produced youthful, sparsely vegetated lava flows. Several lines of NE-SW-trending cinder cones are present within the volcanic field, with the youngest flows occurring near Panguitch Lake on the north and Navajo Lake on the south. Navajo Lake (upper right) formed when a thick, blocky flow from a nearby vent dammed Duck Creek. The oldest trees on the youngest flows are about 900 years old. Photo by Lee Siebert, 1996 (Smithsonian Institution)
Volcano Number:
327040
Volcano Name:
Markagunt Plateau
Country:
United States
Volcano Type:
Volcanic field
Last Eruption:
1050 CE
Elevation:
2840m
Tectonic Setting:
Rift zone / Continental crust (> 25 km)
Pop. within 5km:
970
Pop. within 10km:
970
Pop. within 30km:
1887
Pop. within 100km:
186184
Latitude:
37.58
Longitude:
-112.67
Details
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The Markagunt Plateau volcanic field, covering 3,000 km2 east of Cedar Breaks National Monument in SW Utah, includes basaltic cinder cones, lava vents, and sparsely vegetated lava flows. Products of an older episode of volcanism producing trachytic, andesitic and rhyolitic lavas that were succeeded by basaltic lavas of two different ages. Several lines of NE-SW-trending cinder cones occur within the volcanic field, with the youngest flows being located near Panguitch Lake on the north and Navajo Lake on the south. Navajo Lake formed when a thick blocky flow dammed Duck Creek. Young lava flows, many of which are fissure fed, have distinct margins and covered or diverted stream drainages, which have for the most part not been reestablished across the flows. Although the precise age of the lava flows is not known, the oldest trees on the youngest flows at Panguitch Lake date to about 1050 CE (Gregory, 1949), consistent with legends of the Southern Paiute (who arrived in the area about 1000 CE) noting ejection of fiery rocks and molten lava flows (Palmer, 1957).
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Eruption Data from the Global Volcanism Program of the Smithsonian Institution
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Emissions Data from the Global Volcanism Program of the Smithsonian Institution
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Data from the Earthchem Library
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Data from the Earthchem Portal
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Data from the SESAR Database
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Data from the MaGa Database
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Data from UNAVCO
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Data from USIEI
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Data from IRIS FDSNWS
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