124214 - The largest deep-ocean silicic volcanic eruption of the past century.pdf (886.38 kB)
The largest deep-ocean silicic volcanic eruption of the past century
journal contribution
posted on 2023-05-19, 15:52 authored by Rebecca CareyRebecca Carey, Soule, SA, Manga, M, White, JDL, Jocelyn McPhieJocelyn McPhie, Wysoczanski, R, Martin JutzelerMartin Jutzeler, Tani, K, Yoerger, D, Fornari, D, Caratori-Tontini, F, Houghton, B, Mitchell, S, Ikegami, F, Conway, C, Murch, A, Fauria, K, Jones, M, Cahalan, R, McKenzie, WThe 2012 submarine eruption of Havre volcano in the Kermadec arc, New Zealand, is the largest deep-ocean eruption in history and one of very few recorded submarine eruptions involving rhyolite magma. It was recognized from a gigantic 400-km2 pumice raft seen in satellite imagery, but the complexity of this event was concealed beneath the sea surface. Mapping, observations, and sampling by submersibles have provided an exceptionally high fidelity record of the seafloor products, which included lava sourced from 14 vents at water depths of 900 to 1220 m, and fragmental deposits including giant pumice clasts up to 9 m in diameter. Most (>75%) of the total erupted volume was partitioned into the pumice raft and transported far from the volcano. The geological record on submarine volcanic edifices in volcanic arcs does not faithfully archive eruption size or magma production.
Funding
Australian Research Council
History
Publication title
Science AdvancesVolume
4Article number
e1701121Number
e1701121Pagination
1-6ISSN
2375-2548Department/School
School of Natural SciencesPublisher
American Association for the Advancement of SciencePlace of publication
United StatesRights statement
Copyright © 2018 The Authors. Licensed under Creative Commons Attribution-NonCommercial 4.0 https://creativecommons.org/licenses/by-nc/4.0/Repository Status
- Open