Giant offshore pumice deposit records a shallow submarine explosive eruption of ancestral Santorini
-
Published:2024-01-15
Issue:1
Volume:5
Page:
-
ISSN:2662-4435
-
Container-title:Communications Earth & Environment
-
language:en
-
Short-container-title:Commun Earth Environ
Author:
Druitt TimORCID, Kutterolf SteffenORCID, Ronge Thomas A., Hübscher ChristianORCID, Nomikou Paraskevi, Preine JonasORCID, Gertisser RalfORCID, Karstens JensORCID, Keller Jörg, Koukousioura Olga, Manga MichaelORCID, Metcalfe Abigail, McCanta MollyORCID, McIntosh Iona, Pank Katharina, Woodhouse AdamORCID, Beethe Sarah, Berthod Carole, Chiyonobu Shun, Chen Hehe, Clark AcaciaORCID, DeBari SusanORCID, Johnston Raymond, Peccia Ally, Yamamoto YuzuruORCID, Bernard Alexis, Perez Tatiana Fernandez, Jones ChristopherORCID, Joshi Kumar BatukORCID, Kletetschka GüntherORCID, Li Xiaohui, Morris Antony, Polymenakou Paraskevi, Tominaga MasakoORCID, Papanikolaou Dimitrios, Wang Kuo-LungORCID, Lee Hao-Yang
Abstract
AbstractLarge explosive volcanic eruptions from island arcs pour pyroclastic currents into marine basins, impacting ecosystems and generating tsunamis that threaten coastal communities and infrastructures. Risk assessments require robust records of such highly hazardous events, which is challenging as most of the products lie buried under the sea. Here we report the discovery by IODP Expedition 398 of a giant rhyolitic pumice deposit emplaced 520 ± 10 ky ago at water depths of 200 to 1000 m during a high-intensity, shallow submarine eruption of ancestral Santorini Volcano. Pyroclastic currents discharged into the sea transformed into turbidity currents and slurries, forming a >89 ± 8 km3 volcaniclastic megaturbidite up to 150 m thick in the surrounding marine basins, while breaching of the sea surface by the eruption column laid down veneers of ignimbrite on three islands. The eruption is one of the largest recorded on the South Aegean Volcanic Arc, and highlights the hazards from submarine explosive eruptions.
Publisher
Springer Science and Business Media LLC
Subject
General Earth and Planetary Sciences,General Environmental Science
Reference97 articles.
1. White, J. D., Schipper, C. I. & Kano, K. in The Encyclopedia of Volcanoes 553–569 (Academic Press, 2015). 2. Cahalan, R. C. & Dufek, J. Explosive submarine eruptions: the role of condensable gas jets in underwater eruptions. J. Geophys. Res. Solid Earth 126, e2020JB020969 (2021). 3. Hajimirza, S., Jones, T. J., Moreland, W. M., Gonnermann, H. M. & Thordarson, T. Quantifying the water‐to‐melt mass ratio and its impact on eruption plumes during explosive hydromagmatic eruptions. Geochem. Geophys. Geosys. 23, e2021GC010160 (2022). 4. Rowell, C. R., Jellinek, A. M., Hajimirza, S. & Aubry, T. J. External surface water influence on explosive eruption dynamics, with implications for stratospheric sulfur delivery and volcano-climate feedback. Front. Earth Sci. 10, 788294 (2022). 5. Gilchrist, J. T., Jellinek, A. M., Hooft, E. E. & Wanket, S. Submarine terraced deposits linked to periodic collapse of caldera-forming eruption columns. Nat. Geosci. 16, 446–453 (2023).
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献
|
|