Insular Mountains
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The Insular Mountains is a mountain range on the coast of British Columbia, Canada. This mountain range is not yet fully emerged above sea level, and Vancouver Island and the Queen Charlotte Islands are just the higher elevations of the range, which was in fact fully exposed during the last ice age when the continental shelf in this area was a broad coastal plain. The mountain range formed when a chain of active volcanic islands called the Insular Islands, collided against the North American continent during the Mid-Cretaceous time. The type of rocks that form the Insular Mountains are turbidites and pillow lavas. Granitic plutons are relatively uncommon in the Insular Mountains, unlike the Coast Mountains. The mountain range has much seismic activity, with the Pacific Plate and the Juan de Fuca Plate being subducted into the earth's mantle.
[edit] Sub-ranges
- Queen Charlotte Mountains
- Cameron Range
- Crease Range
- McKay Range
- San Christoval Range
- Vancouver Island Ranges
- Beaufort Range
- Bonanza Range
- Elk River Mountains
- Franklin Range
- Genevieve Range
- Gowlland Range
- Haihte Range
- Halifax Range
- Hankin Range
- Karmutzen Range
- Pelham Range
- Pierce Range
- Prince of Wales Range
- Refugium Range
- Seymour Range
- Somerset Range
- Sophia Range
- Sutton Range
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