[Rockhounds] Alaskan Islands May Be Hiding an Ancient Caldera

[Paul]

Alaska May Be Hiding a Huge Volcanic System
By George Dvorsky, Gizmodo, December 4, 2020
https://gizmodo.com/alaska-may-be-hiding-a-huge-volcanic-system-1845810147

Alaska islands may be part of single, massive volcano
Preliminary analysis of a far-flung island cluster suggests
that what we thought were several small, independent
volcanoes might actually be a single eruptive behemoth.
By Maya Wei-Hasa, National Geographic, December 4, 2020
https://www.nationalgeographic.com/science/2020/12/alaska-islands-may-be-part-single-massive-volcano.html

Multi-Disciplinary Evidence for a Large, Previously
Unrecognized Caldera in the Islands of Four Mountains,
Central Aleutian Arc, Alaska. AGU Fall Meeting, Dec. 7, 2020
https://agu.confex.com/agu/fm20/webprogram/Paper746451.html

Yours,

Paul H.