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Tuya volcano

volcanic field 2123 m / 6,965 ft
Canada, 59.37°N / -130.58°W
Current status: dormant (1 out of 5)
Tuya volcano books
Typical eruption style: effusive
Tuya volcano eruptions: none in historic timesNo recent earthquakes
TimeMag. / DepthDistanceLocation
The Tuya volcanic field is a broad volcanic region near Lake Tuya in the Cassiar Mountains and Tanzilla Plateau area of northern British Columbia, Canada. It contains small shield volcanoes and cinder cones which were formed under glacial ice. They are the type locality of so-called "tuyas", products of Pleistocene subglacial eruptions, that usually form flat-topped basaltic table mountains. Many tuyas are found on and better known from Iceland.
Tuya Butte itself, immediately north of Tuya Lake, has no summit crater or obvious vent, suggesting fissure-fed eruptions. Other eruption sites are located at High Tuya Lake, Iverson Creek, Rancheria River, and Klinkit Lake. At least one of the vents occurred during post-glacial times at Grabrielse Cone near the headwaters of Iverson Creek, and represents the youngest volcanic activity of the field.


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