Boars Tusk
Boars Tusk is an isolated remains of a volcano within the Rock Springs Uplift in the Green River Basin of southwestern Wyoming. It has a peak elevation of 7,101 ft (2,164 m) and rises some 400 ft (120 m) above the surrounding Killpecker Creek plain and lies 26.2 mi (42.2 km) north of Rock Springs. The north end of White Mountain lies 3.0 mi (4.8 km) to the west.
Boars Tusk is an isolated remnant of a long extinct volcano associated with the Leucite Hills to the east. Heavily eroded, all that remains of the volcano is part of the erosion resistant volcanic neck which is composed of the uncommon volcanic rock lamproite. Rock samples from Boars Tusk provided an age of 2.5 MA.
References
- ^ "Boars Tusk, Wyoming". Peakbagger.com. Retrieved May 11, 2014.
- ^ "Boars Tusk". Geographic Names Information System. United States Geological Survey, United States Department of the Interior. Retrieved May 11, 2014.
- ^ Rock Springs, Wyoming, 30x60 Minute Topographic Quadrangle, USGS, 1981
- ^ Boars Tusk, Wyoming, 15 Minute Topographic Quadrangle, USGS, 1958
- ^ Boars Tusk, WY (Map). TopoQwest (United States Geological Survey Maps). Retrieved May 11, 2014.
- ^ Mindat locality
- ^ R. A. Lange et al., Ar/Ar chronology of the Leucite Hills, Wyoming: eruption rates, erosion rates, and an evolving temperature structure of the underlying mantle, Earth and Planetary Science Letters, 174, (2000), p. 334 PDF
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