Satah Mountain volcanic field

The Satah Mountain volcanic field (SMVF) is an extensive north-south trending volcanic chain in the Central Interior of British Columbia that stretches south of the Itcha Range shield volcano to northeast of Nimpo Lake. The chain is located on the Chilcotin Plateau, a major subdivision of the Interior Plateau that includes other nearby volcanic features. It forms a segment of the east-west trending Anahim Volcanic Belt, whose volcanic activity ranges in age from Miocene-to-Holocene.

Satah Mountain volcanic field
Satah Mountain volcanic field is located in British Columbia
Satah Mountain volcanic field
Satah Mountain volcanic field
Highest point
PeakSatah Mountain
Elevation1,921 m (6,302 ft)
Coordinates52°28′32.9″N 124°41′22.9″W
Geography
LocationBritish Columbia, Canada
Geology
Volcanic beltAnahim Volcanic Belt

This volcanic chain is named after its highest volcano, Satah Mountain, 35 km (22 mi) northeast of Nimpo Lake.[1]

Geology

Volcanic features in the Satah Mountain field include lava domes, cinder cones and lava flows. Lava domes and flows are composed of trachyte and the cinder cones consist of basaltic and trachybasaltic lava. The most recently formed cone is well preserved and might have a similar age to the 7,200‑year‑old Nazko Cone at the easternmost end of the Anahim Volcanic Belt.[1] However, argon-argon dating by Kuehn et al. (2015) found that the youngest SMVF feature was a 1.43 million year old plug of basaltic trachyandesite.[1][2]

Volcanic features

All features listed in this table were derived from Kuehn et al. (2015)[2] except where noted.

NameLandformRock typeAge (Ma)Coordinates
-Erosional remnantPhonolite-52°24.6′N 124°42.5′W
-Eroded coneBasaltic trachyandesite1.9452°23.8′N 124°45.8′W
-Eroded coneTrachyte-52°22.5′N 124°34′W
-Eroded conePhonotephrite-52°26.4′N 124°37.3′W
-Eroded coneTrachyte1.9552°31.9′N 124°42.9′W
-Eroded cone--52°32.3′N 124°45.1′W
-Eroded cone--52°32.5′N 124°46.8′W
-Eroded coneTrachyte1.6652°32.1′N 124°47.9′W
-Eroded cone, lava flowsTrachybasalt, trachyandesite,
trachyte		1.7752°23.7′N 124°42′W
-ConeTrachyte-52°22.5′N 124°44.4′W
-PlugBasaltic trachyandesite1.4352°20.4′N 124°40′W
Jorgensen HillEroded coneTrachybasalt2.2152°16.6′N 124°29.1′W
-Eroded dome?Trachyte-52°30.6′N 124°42.1′W
-Eroded dome?Trachyte-52°26.4′N 124°42.6′W
Mount PunkutlaenkutPolygenetic coneTrachyte1.9652°29.5′N 124°47.8′W
Satah MountainPolygenetic, complex coneBasaltic trachyandesite,
trachyandesite (benmoreite),
trachyte		1.83–1.7752°28.5′N 124°41.4′W
Sugarloaf MountainEroded coneTrachyte2.1852°16.4′N 124°48.2′W
-Eroded domeTrachyte1.7452°25.7′N 124°42.4′W
Turbo LakeLava flowTrachybasalt-52°18.9′N 124°48.2′W
-Erosional remnantPhonolite-52°29.6′N 124°43.5′W
White Creek[1]Cone[1]--52°32′57″N 124°51′7″W[1]
Holte Creek[1]Cone[1]--52°28′50″N 124°45′26″W[1]

See also

References
  1. "Satah Mountain". Global Volcanism Program. Smithsonian Institution.
  2. Kuehn, Christian; Guest, Bernard; K. Russell, James; A. Benowitz, Jeff (2015). "The Satah Mountain and Baldface Mountain volcanic fields: Pleistocene hot spot volcanism in the Anahim Volcanic Belt, west-central British Columbia, Canada". Bulletin of Volcanology. Springer: 8, 9.
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