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 49°53′43″N, 123°00′47″W
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

[edit] References

[edit] External Links

  • The Table in the Canadian Mountain Encyclopedia