Within Alaska is a volcano which has an active magma chamber yet hasn't erupted for 250,000 years. For all intents and purposes Mount Drum is extinct, and yet it releases tons of carbon dioxide onto the surface each day, largely being sent upwards due to the presence of magma deep underground. This activity has created a series of highly unusual mud volcanoes which are up to 1.2 miles wide and 165 feet tall! So, is Mount Drum truly extinct?
Thumbnail Photo Credit: Richter, D. H., Alaska Volcano Observatory/U.S. Geological Survey, avo.alaska.edu/image/view/300. This image was overlaid with text and then overlaid with GeologyHub made graphics (the image border & the GeologyHub logo).
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Sources/Citations:
[1] Alaska Volcano Observatory
[2] U.S. Geological Survey
[3] University of Alaska Fairbanks, Geophysical Institute
[4] Alaska Division of Geological & Geophysical Surveys
[5] Michael L. Sorey, Cindy Werner, Robert G. McGimsey, William C. Evans, "Hydrothermal activity and carbon-dioxide discharge at Shrub and upper Klawasi mud volcanoes, Wrangell Mountains, Alaska", U.S. Geological Survey, USGS Numbered Series 2000-4207. DOI: 10.3133/wri004207.
0:00 Mount Drum
0:31 A Geologic Hazard
0:54 Carbon Dioxide
2:25 Extinct or Dormant?
3:54 Comparison
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