Slag Hill

Slag Hill

An image of Ring Mountain (background) and Slag Hill (foreground)
Highest point
Coordinates 50°11′00.23″N 123°18′00.25″W / 50.1833972°N 123.3000694°W / 50.1833972; -123.3000694Coordinates: 50°11′00.23″N 123°18′00.25″W / 50.1833972°N 123.3000694°W / 50.1833972; -123.3000694
Geography
Slag Hill

Location of Slag Hill in southwestern British Columbia, Canada

Location British Columbia, Canada
Parent range Pacific Ranges
Geology
Mountain type Subglacial volcano
Volcanic arc/belt

Canadian Cascade Arc

Garibaldi Volcanic Belt

Last eruption Holocene

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 Retrieved on 2007-05-28

See also

This article is issued from Wikipedia - version of the Wednesday, December 16, 2015. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.