Alligator Lake volcanic complex
Alligator Lake
Volcanic field · Canada · 2217m
- Type
- Volcanic field
- Country
- Canada
- Region
- North America Volcanic Regions / Northern Cordilleran Volcanic Province
- Elevation
- 2217m
- Coordinates
- 60.420, -135.420
- Last eruption
- Unknown
- Tectonic setting
- Intraplate / Continental crust (> 25 km)
- Landform
- Cluster
- Major rock type
- Basalt / Picro-Basalt
Geological summary
A group of basaltic cones and lava flows (the Miles Canyon basalts) in south-central Yukon near the capital city of Whitehorse was considered to be of Pleistocene age (Wheeler, 1961). The upper part of the Alligator Lake volcanic complex, consisting of two well-preserved cinder cones capping a small shield volcano, probably post-dates local Holocene glaciation (Eiche et al., 1987). Lava flows from both cones traveled to the N and were erupted simultaneously. Their compositions range from alkali olivine basalt to basanitic. Flows from the NE cone are the largest, extending 6 km from the cone and expanding to a width of 10 km at the terminus. Portions of the flows contain spinel lherzolite and granitoid xenoliths and megacrysts of olivine, pyroxene, and spinel.
From Wikipedia
The Alligator Lake volcanic complex is a group of basaltic cinder cones and lava flows in south central Yukon. The upper part of the Alligator Lake volcanic complex consists of two well-preserved cinder cones capping a small shield volcano. They probably post-date the local Holocene glaciation. Lava flows from both cinder cones traveled to the north and were erupted simultaneously. Their compositions range from alkali olivine basalt to basanitic. Lava flows from the northeast cone are the largest extending 6 km (4 mi) from the cone and expanding to a width of 10 km (6 mi) at the terminus.
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Eruption history
Detailed timeline
No eruption records available.
External links
⚠ For reference only. Not for emergency response.