Garibaldi Lake Volcanic Field
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Garibaldi Lake Volcanic Field | |
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The north face of Mount Garibaldi rises above The Table and Garibaldi Lake |
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Elevation | 2,316 metres (7,598 feet) |
Location | British Columbia, Canada |
Range | Garibaldi Ranges |
Coordinates | |
Type | Volcanic field |
Age of rock | Holocene |
Last eruption | Unknown |
The Garibaldi Lake Volcanic Field is a volcanic field, located in British Columbia, Canada. It 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 late Pleistocene and early Holocene. The oldest stratovolcano, Black Tusk, formed between about 1.3 and 1.1 million years ago (Ma). Following glacial dissection, renewed volcanism produced the lava dome and flow forming it's summit. Other Pleistocene vents are located along and to the west of the Cheakamus River. Cinder Cone, to the east of Black Tusk, produced a 9-km-long lava flow during the late Pleistocene or early Holocene.
Mount Price, west of Garibaldi Lake, 5 km south of Black Tusk, was formed in three stages of activity, dating back 1.1 million years, the latest of which produced two large lava flows from Clinker Peak during the early Holocene that ponded against the retreating continential ice sheet and formed The Barrier, containing Garibaldi Lake.
The Table is a steep-sided andesite tuya, situated approximately 3 km southwest of Mount Price and south of Garibaldi Lake. It rises 305 meters above glaciated basement rocks. The tuya formed by effusion of flatlying flows within erratics on its summit and lack of erosional features attributable to glacial suggest that The Table was also formed during the early Holocene.