Inaccessible Island is one of the furthest places you can possibly get from true civilization. Located in the center of the Atlantic Ocean, this fascinating island requires more than a weeklong boat trip to reach. It is made so inaccessible (hence the name) due it is representing an erosional remnant of a once towering stratovolcano. Today's video will discuss this remote island near Tristan da Cunha and discuss the broader Tristan mantle plume. Thumbnail Photo Credit: Google Earth, Image © 2025 Maxar Technologies, Image Landsat / Copernicus. This image was overlaid with text, and then overlaid with GeologyHub made graphics (the image border & the GeologyHub logo). 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 2.0: https://creativecommons.org/licenses/by/2.0/legalcode CC BY 4.0: https://creativecommons.org/licenses/by/4.0/legalcode Sources/Citations: [1] Chevallier L, Rex DC, Verwoerd WJ. Geology and geochronology of Inaccessible Island, South Atlantic. Geological Magazine. 1992;129(1):1-16. doi:10.1017/S0016756800008098 [2] Jepson, Lisa Rose. (2018). Halogens in Volcanic Systems. 10.5281/zenodo.3378009. [3] Srivastava, P., J. Murton, B., Sant’Anna, L.G. et al. Red clays indicate sub-aerial exposure of the Rio Grande Rise during the Eocene volcanic episode. Sci Rep 13, 19092 (2023). https://doi.org/10.1038/s41598-023-46273-y, CC BY 4.0. [4] Geissler, W.H., Wintersteller, P., Maia, M. et al. Seafloor evidence for pre-shield volcanism above the Tristan da Cunha mantle plume. Nat Commun 11, 4543 (2020). https://doi.org/10.1038/s41467-020-18361-4, CC BY 4.0. [5] U.S. Geological Survey 0:00 Inaccessible Island 1:41 Gough Hotspot 2:36 Regional Volcanoes 3:37 Remnant of Original Volcano 4:01 Cone Building Phase