Satah Mountain volcanic field

Satah Mountain volcanic field
Country Canada
Province British Columbia
Part of Anahim Volcanic Belt
Highest point Satah Mountain
 - elevation 1,921 m (6,302 ft)
 - coordinates 52°28′0″N 124°42′0″W / 52.46667°N 124.70000°W / 52.46667; -124.70000
Geology Lava flows, cinder cones, lava domes
Period Pleistocene

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. Volcanic features in the Satah Mountain field include lava domes, cinder cones and lava flows. Its name originates from Satah Mountain, the highest volcano, located 35 km (22 mi) northeast of Nimpo Lake.[1]

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, recent (2015) argon-argon dating by Kuehn et al. found that the youngest SMVF feature was a 1.43 million year old plug of basaltic trachyandesite.[1][2]

Volcanic features

NameLandformRock typeAge (Ma)CoordinatesReference [2]
-Erosional remnantPhonolite-52°24′6″N 124°42′5″W / 52.40167°N 124.70139°W / 52.40167; -124.70139Bulletin of Volcanology
-Eroded coneBasaltic trachyandesite1.9452°23′8″N 124°45′8″W / 52.38556°N 124.75222°W / 52.38556; -124.75222Bulletin of Volcanology
-Eroded coneTrachyte-52°22′5″N 124°34′00″W / 52.36806°N 124.56667°W / 52.36806; -124.56667Bulletin of Volcanology
-Eroded conePhonotephrite-52°26′4″N 124°37′3″W / 52.43444°N 124.61750°W / 52.43444; -124.61750Bulletin of Volcanology
-Eroded coneTrachyte1.9552°31′9″N 124°42′9″W / 52.51917°N 124.70250°W / 52.51917; -124.70250Bulletin of Volcanology
-Eroded cone--52°32′3″N 124°45′1″W / 52.53417°N 124.75028°W / 52.53417; -124.75028Bulletin of Volcanology
-Eroded cone--52°32′5″N 124°46′8″W / 52.53472°N 124.76889°W / 52.53472; -124.76889Bulletin of Volcanology
-Eroded coneTrachyte1.6652°32′1″N 124°47′9″W / 52.53361°N 124.78583°W / 52.53361; -124.78583Bulletin of Volcanology
-Eroded cone, lava flowsTrachybasalt, trachyandesite,
trachyte		1.7752°23′7″N 124°42′00″W / 52.38528°N 124.70000°W / 52.38528; -124.70000Bulletin of Volcanology
-ConeTrachyte-52°22′5″N 124°44′4″W / 52.36806°N 124.73444°W / 52.36806; -124.73444Bulletin of Volcanology
-PlugBasaltic trachyandesite1.4352°20′4″N 124°40′00″W / 52.33444°N 124.66667°W / 52.33444; -124.66667Bulletin of Volcanology
Jorgensen HillEroded coneTrachybasalt2.2152°16′6″N 124°29′1″W / 52.26833°N 124.48361°W / 52.26833; -124.48361Bulletin of Volcanology
-Eroded dome?Trachyte-52°30′6″N 124°42′1″W / 52.50167°N 124.70028°W / 52.50167; -124.70028Bulletin of Volcanology
-Eroded dome?Trachyte-52°26′4″N 124°42′6″W / 52.43444°N 124.70167°W / 52.43444; -124.70167Bulletin of Volcanology
Mount PunkutlaenkutPolygenetic coneTrachyte1.9652°29′5″N 124°47′8″W / 52.48472°N 124.78556°W / 52.48472; -124.78556Bulletin of Volcanology
Satah MountainPolygenetic, complex coneBasaltic trachyandesite,
trachyandesite (benmoreite),
trachyte		1.83–1.7752°28′5″N 124°41′4″W / 52.46806°N 124.68444°W / 52.46806; -124.68444Bulletin of Volcanology
Sugarloaf MountainEroded coneTrachyte2.1852°16′4″N 124°48′2″W / 52.26778°N 124.80056°W / 52.26778; -124.80056Bulletin of Volcanology
-Eroded domeTrachyte1.7452°25′7″N 124°42′4″W / 52.41861°N 124.70111°W / 52.41861; -124.70111Bulletin of Volcanology
Turbo LakeLava flowTrachybasalt-52°18′9″N 124°48′2″W / 52.30250°N 124.80056°W / 52.30250; -124.80056Bulletin of Volcanology
-Erosional remnantPhonolite-52°29′6″N 124°43′5″W / 52.48500°N 124.71806°W / 52.48500; -124.71806Bulletin of Volcanology

See also

References

  1. 1 2 3 "Satah Mountain". Global Volcanism Program. Smithsonian Institution.
  2. 1 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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