Slag Hill

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Slag Hill
Slag Hill and Ring Mountain.jpg
An image of Ring Mountain (background) and Slag Hill (foreground)
Highest point
Coordinates 50°11′00.23″N123°18′00.25″W / 50.1833972°N 123.3000694°W / 50.1833972; -123.3000694
Geography
Canada British Columbia relief location map.jpg
Red triangle with thick white border.svg
Slag Hill
Location in British Columbia
Location British Columbia, Canada
Parent range Pacific Ranges
Geology
Mountain type Subglacial volcano
Volcanic arc Canadian Cascade Arc
Volcanic belt Garibaldi Volcanic Belt
Volcanic field Mount Cayley volcanic field
Last eruption Holocene age

Slag Hill is a subglacial volcano associated with the Mount Cayley volcanic field in British Columbia, Canada. It consists of glassy, augite-phyric basaltic andesite in steep-sided, glassy, finely jointed domes and one small, flat-topped bluff. The finely jointed domes are similar to those of Ember Ridge. There are quench features at Slag Hill, which is suggesting that the volcanic activity was subglacial. Slag Hill was formed throughout the Pleistocene period, but its most recent volcanic activity produced a lava flow on its western lobe that shows no evidence of ice-contact volcanism. [1] This indicates the lava flow was erupted less than 10,000 years ago after the last glacial period. [1]

References

  1. 1 2 Catalogue of Canadian Volcanoes Archived 2011-07-16 at the Wayback Machine Retrieved on 2007-05-28

See also