Watts Point volcanic centre
- Watts Point volcanic centre
Infobox Mountain
Name= Watts Point volcanic centre
Photo=
Caption=
Elevation= ~ Convert|240|m|ft|-2|abbr=on
Location=British Columbia, Canada
Range=North Shore Mountains
Prominence =
Coordinates = coord|49|39|N|123|13|W|type:mountain_region:CA
Topographic
NTS 92G/11 Squamish
Type=Subglacial mound
Age= ~ 90,000–130,000 yrs
Last eruption= ~ 90,000 yrs
First ascent=
Easiest route=
The Watts Point volcanic centre is a small outcrop of volcanic rock in British Columbia, Canada, located on the eastern shore of Howe Sound about Convert|10|km|mi|0 south of Squamish and Convert|40|km|mi|0 north of Vancouver. It is the southernmost volcanic center in the Garibaldi segment of the Cascade Volcanic Arc, and the latest research indicates that it is most likely a subglacial mound. It comprises a continuous mass of sparsely porphyritic highly jointed dacitic lava overlying the mid-Cretaceous Coast Plutonic Complex and overlain locally by clay and of glacial till.
The volcanic outcrop at Watts Point extends from below the present sea level up the side of a steep slope over Convert|240|m|ft|-2. The outcrop is less than Convert|1|km|mi|1 long, with an area of about Convert|0.4|km2|sqmi|1 and an eruptive volume of roughly Unit cbkm|0.02|3. The location is heavily forested, and the BC Rail mainline passes through the lower portion of the outcrop about Convert|40|m|ft|-1|abbr=on|abbr=on|abbr=on above sea level. Two railroad track ballast quarries, one near the middle and the other near the upper edge, provide the best exposure of the interior of the lava mass.
Location map
British Columbia| label=Watts Point volcanic centre
mark=RedMountain.svg|marksize=18
lat_deg=49|lat_min=39|lat_dir=N
lon_deg=123|lon_min=13|lon_dir=W
position=left |float=right
caption=Location of the Watts Point volcanic centre
ee also
*Cascade Volcanoes
*Garibaldi Volcanic Belt
*Volcanism in Canada
*List of volcanoes in Canada
*Geology of the Pacific Northwest
References
*
*
External links
Wikimedia Foundation.
2010.
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