The Unusual Flat Topped Volcanoes & How they Form; Tuyas

In Oregon, Canada, and Iceland are a strange group of volcanoes which have incredibly steep slopes yet also a flat top. Known as "tuya" volcanoes, these unusual features can form when a volcanic eruption or series of volcanic eruptions occur underneath a thick ice sheet.

Thumbnail Photo Credit: Central photo of a tuya in Iceland is from Google Earth, Map data: Image Landsat / Copernicus, Image © 2022 Maxar Airbus.

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Examples of tuya include:
-Herðubreið (Iceland)
-Hoodoo Mountain (Canada)
-The Table (Canada)
-Togiak Tuya (Alaska)

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Sources/Citations:
[1] EGU22-8641, A. M. Sigurbergsdóttir & M. T. Gudmundsson, https://doi.org/10.5194/egusphere-egu22-8641, EGU General Assembly 2022, CC BY 4.0
[2] Alaska Volcano Observatory

0:00 Shield & Stratovolcanoes
0:32 Tuyas
0:53 Tuya Formation
2:11 Tuya Volcanic Field
2:32 Conclusion

Видео The Unusual Flat Topped Volcanoes & How they Form; Tuyas канала GeologyHub