Monmouth Creek complex
| Monmouth Creek complex | |
|---|---|
  Monmouth Creek complex | |
| Highest point | |
| Elevation | 510 m (1,670 ft) |
| Coordinates | 49°41′38″N 123°11′49″W / 49.69389°N 123.19694°W |
| Geography | |
| Location | British Columbia, Canada |
| Parent range | Pacific Ranges |
| Topo map | NTS 92G/11 |
| Geology | |
| Age of rock | Unknown[1] |
| Volcanic arc/belt | Cascade Volcanic ArcGaribaldi Volcanic Belt |
The Monmouth Creek complex is a volcanic complex in southwestern British Columbia, Canada, located 4 km (2.5 mi) southwest of the community of Squamish on the west side of the Squamish River mouth. It lies in the southern Pacific Ranges of the Coast Mountains and is part of the Garibaldi Volcanic Belt, which represents the northernmost extension of the Cascade Volcanic Arc.
Its prominent and enigmatic edifice is composed of basaltic andesite to dacite of unknown age with at least four dikes protruding from its summit.[1][2] These form the ribs of 60 m (200 ft) to 180 metres (590 ft)* high lava spines, the tallest being The Castle, which contains horizontal and radiating columnar joints.[1] The spines are covered by welded breccia close to their bases and columnar jointing extends into the welded sequence.[1] The most elevated lava flows and spines and composed of dacite.[1]
References
- ^ a b c d e Smellie, J.L. (2002). Volcano-Ice Interaction on Earth and Mars. Geological Society of London. p. 201. ISBN 1862391211.
{{cite book}}: Unknown parameter|coauthors=ignored (|author=suggested) (help) - ^ Kelman, M.C. (2002). Effusive intermediate glaciovolcanism in the Garibaldi volcanic belt, southwestern British Columbia, Canada. 101-605 Robson Street, Vancouver, British Columbia V6B 5J3, Canada: Geological Survey of Canada. p. 197.
{{cite book}}: Unknown parameter|coauthors=ignored (|author=suggested) (help)CS1 maint: location (link)
External links
- Catelogue of Canadian volcanoes: The Castle
- The Castle in the Canadian Mountain Encyclopedia
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