Surprisingly, not all volcanoes have a triangular profile. In fact, some are giant holes in the ground, while others have a broad flat top. This video discusses some of the more unusual volcano types including subglacial volcanoes, lava cones, and tuff rings, along with more common volcanoes such as calderas. This video is being read by a volcanologist. Thumbnail Photo Credit: From left to right the three images used in this video's thumbnail are from the following sources... [1] NSF and NOAA, NOAA Photo Library, Public Domain, https://www.noaa.gov/media/digital-library-photo/pl23expl2299jpg [2] Doukas, Mile, U.S. Geological Survey, Public Domain, https://www.usgs.gov/media/images/crater-lake-remnant-mount-mazama-which-erupted-catastrop [3] U.S. Geological Survey, Public Domain, https://www.usgs.gov/media/images/northeast-wall-main-crater-ubehebe-craters If you would like to support this channel, consider using one of the following links: (Patreon: http://patreon.com/geologyhub) (YouTube membership: https://www.youtube.com/channel/UCYeGh5VML5XPr5jYnzh3J6g/join) (Gemstone & Mineral Etsy store: http://prospectingarizona.etsy.com) (GeologyHub Merch Etsy store: http://geologyhub.etsy.com) Google Earth imagery used in this video: ©Google & Data Providers This video is protected under "fair use". If you see an image and/or video which is your own in this video, and/or think my discussion of a scientific paper (and/or discussion/mentioning of the data/information within a scientific paper) does not fall under the fair use doctrine, and wish for it to be censored or removed, contact me by email at [email protected] and I will make the necessary changes. Various licenses used in sections of this video (not the entire video, this video as a whole does not completely fall under one of these licenses) and/or in this video's thumbnail image (and this list does not include every license used in this video and/or thumbnail image): Public Domain: https://creativecommons.org/publicdomain/mark/1.0/ CC BY 4.0: https://creativecommons.org/licenses/by/4.0/legalcode Sources/Citations: [1] U.S. Geological Survey [2] EGU22-8641, A. M. Sigurbergsdóttir & M. T. Gudmundsson, https://doi.org/10.5194/egusphere-egu22-8641, EGU General Assembly 2022, CC BY 4.0 0:00 Types of Volcanoes 0:18 Lava Cone Volcano 0:47 Caldera Volcano 1:24 Submarine Volcano 1:50 Subglacial Volcano 3:19 Maar 3:50 Tuff Ring & Tuff Cone 4:24 Complex Volcanoes 4:40 Volcanic Fields 4:58 Classifying Complicated Volcanoes