The Table
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| The Table | |
|---|---|
 The north face of Mount Garibaldi rises above The Table and Garibaldi Lake |
|
| Elevation | 2,021 m (6,631 ft) |
| Location | Garibaldi Lake Volcanic Field, British Columbia, Canada |
| Range | Garibaldi Ranges, Cascade Volcanic Arc |
| Prominence | 251 m (823 ft) |
| Coordinates | |
| Topo map | NTC 92G/14 Cheakamus River |
| Type | Tuya |
| Age of rock | Pleistocene |
| Last eruption | Pleistocene |
| First ascent | 1916 Tom Fyles |
The Table is a 2,021 m (6631 ft) high flow-dominated andesite tuya near Mount Garibaldi, British Columbia, Canada. It rises over 530 m (1750 ft) above the surface of Garibaldi Lake, which lies less than 1 km (0.6 mi) to the north. The Table is within the Garibaldi Volcanic Belt, part of the chain of volcanic peaks that run from southwestern British Columbia to northern California caused by subduction of the Juan de Fuca Plate and Explorer Plate under the North American Plate at the Cascadia subduction zone. The Table is within the Garibaldi Lake Volcanic Field, a volcanic field located around Garibaldi Lake that was formed by a group of nine small andesitic stratovolcanoes and basaltic-andesite vents in the scenic Garibaldi Lake area immediately north of Mount Garibaldi was formed during the early Holocene.
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[edit] Geology
Canadian geologist Bill Mathews proposed in 1951 that The Table formed when magma intruded into and melted a vertical pipe in the overlying Cordilleran Ice Sheet. The partially molten mass of hornblende-phyric andesite cooled as a large block, with gravity flattening its upper surface. Horizontal columns occur at numerous locations along the periphery of the mass. The absence of glacial erosion of the tuya suggests that it erupted during the early Holocene, just prior to the disappearance of the ice sheet.
[edit] See also
- Cascade Volcanic Arc
- Garibaldi Volcanic Belt
- Garibaldi Lake Volcanic Field
- List of volcanoes in Canada
- Volcanoes of Canada
[edit] References
- Mathews, W. H. (1951). "The Table, a Flat-Topped Volcano in Southern British Columbia". American Journal of Science 249: 830–841.
- Wood, Charles A.; Jürgen Kienle, eds. (1990). Volcanoes of North America. Cambridge University Press. ISBN 0-521-43811-X.
- Harris, Stephen L. (2005). Fire Mountains of the West: The Cascade and Mono Lake Volcanoes (3rd ed.). Mountain Press Publishing Company. ISBN 0-87842-511-X.
[edit] External Links
- The Table in the Canadian Mountain Encyclopedia
