Chipmunk Mountain
The mountain was named in 1920 by James Landsborough after a summit party had given lunch scraps to a chipmunk.
Geology
Chipmunk Mountain is the remains of an extinct volcano that formed during the Miocene epoch. The volcanic rocks comprising Chipmunk Mountain crop out in a 12 km (4.6 sq mi) area and consist of pyroclastic rocks, sills and dikes. These volcanic rocks range from basalts to rhyolites, with the majority classifying as basaltic andesites and andesites. They are closely related to the calc-alkaline volcanic centres of the Pemberton Volcanic Belt, indicating that the volcanic rocks comprising Chipmunk Mountain were created as a result of volcanism in the Canadian Cascade Arc. The volcanic rocks have been dated to be 26.8 ± 1.4 million years old, which correlates with the time of Pemberton Belt volcanism.
Gallery
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Chipmunk Mountain, northeast aspect
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Chipmunk Mountain
See also
References
- ^ "Chipmunk Mountain". Bivouac.com. Retrieved 2012-09-16.
- ^ "Chipmunk Mountain". BC Geographical Names. Retrieved 2012-09-16.
- ^ Fretschmar, Laura M. (1994). "The Vermont Geological Society Spring Meeting for the Presentation of Student Papers". Miocene Volcanism in Southwestern British Columbia: Geochemistry and Tectonic Implications. 21 (1). The Green Mountain Geologist: 7, 8.
External links
- "Chipmunk Mountain". Geographical Names Data Base. Natural Resources Canada. Retrieved 2012-09-16.
- "Chipmunk Mountain". Bivouac.com. Retrieved 2012-09-16.