| 词条 | Opal Cone |
| 释义 |
| name = Opal Cone | photo = Elfin_Lakes%2C_Opal_Cone.jpg | photo_caption = | elevation_m = 1,736 | elevation_ref = | prominence_m = 86 | prominence_ref = | location = Garibaldi Park, British Columbia, Canada | range = Garibaldi Ranges | coordinates = {{coord|49|49|38.0|N|122|58|16.0|W|type:mountain_region:CA|display=inline,title}} | topo = NTS 92.G/15 | type = Cinder cone | age = Holocene | volcanic_arc/belt = Canadian Cascade Arc{{clear}}Garibaldi Volcanic Belt | last_eruption = 9300 BP | first_ascent = | easiest_route = }} Opal Cone is a cinder cone located on the southeast flank of Mount Garibaldi in the Coast Mountains of British Columbia, Canada. It is the source of a 15 km long broad dacite lava flow with prominent wrinkled ridges. The lava flow is unusually long for a silicic lava flow. Opal Cone is a member of the Cascade Volcanoes, but it is located in the Garibaldi Ranges in the Coast Mountains and not in the Cascade Range proper. See also
External links
References
5 : Subduction volcanoes|Cinder cones of British Columbia|Parasitic cones|Holocene volcanoes|Garibaldi Lake volcanic field |
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