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supereruptions

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Journal Article
Journal: Geology
Published: 01 June 2010
Geology (2010) 38 (6): 503–506.
...Kathryn E. Watts; William P. Leeman; Ilya N. Bindeman; Peter B. Larson Abstract Supereruptive volumes of low-δ 18 O rhyolites define the Snake River Plain–Yellowstone Plateau volcanic province, begging the question of the sources and the processes by which 18 O-depleted magmas are generated. New...
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Journal Article
Journal: Elements
Published: 01 February 2008
Elements (2008) 4 (1): 11–15.
...Calvin F. Miller; David A. Wark Abstract Earth's largest volcanic eruptions were an order of magnitude larger than any witnessed by humans since the advent of civilization. These “supereruptions” have played an important role in our species' past and they pose a serious future threat. In this issue...
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Journal Article
Journal: Elements
Published: 01 February 2008
Elements (2008) 4 (1): 16.
...Calvin Miller; David Wark; Steve Self; Steve Blake; Dave John 3 You mention several post 100 ka candidates. What are they? © 2008 by the Mineralogical Society of America 2008 1 How many supervolcanoes/supereruptions are known? Are there many more than are mentioned in the papers...
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Journal Article
Journal: Elements
Published: 01 February 2008
Elements (2008) 4 (1): 17–21.
... into the atmosphere during explosive supereruptions. As currently understood, large pools of explosive magma are produced by extracting interstitial liquid from long-lived “crystal mushes” (magmatic sponges containing >50 vol% of crystals) and collecting it in unstable liquid-dominated lenses. magma chamber...
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Journal Article
Journal: Elements
Published: 01 February 2008
Elements (2008) 4 (1): 29–34.
...Colin J.N. Wilson Abstract Pyroclastic deposits and lava flows generated by supereruptions are similar to, but tens of times larger than, those observed in historic eruptions. Physical processes control eruption styles, which then dictate what products are available for sampling and how well...
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Journal Article
Journal: Elements
Published: 01 February 2008
Elements (2008) 4 (1): 41–46.
...Stephen Self; Stephen Blake Abstract Rare but extremely large explosive supereruptions lead to the catastrophic formation of huge calderas, devastation of substantial regions by pyroclastic flow deposits, and ash falls that cover continent-sized areas. The effects of future supereruptions...
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Journal Article
Journal: Geology
Published: 01 January 2004
Geology (2004) 32 (1): 61–64.
... the supereruption of the oldest Toba tuff appears to suggest that factors other than volcanism have played more influential roles in governing glacial to interglacial transitions in the Quaternary. Figure 1. Map showing sites of cores containing Toba tephra fallout. Open dots indicate cores with tephra...
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Journal Article
Journal: Geology
Published: 22 May 2019
Geology (2019) 47 (8): 710–714.
...Kenneth S. Befus; Michael Manga Abstract Hollow reentrants in quartz phenocrysts from Yellowstone (western United States) caldera’s Lava Creek Tuff are preserved vestiges of bubbles in the supereruption’s pre-eruptive magma reservoir. We characterized the reentrants using a combination...
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Journal Article
Journal: Geology
Published: 01 June 2012
Geology (2012) 40 (6): 563–566.
... derived from distinctive sources that reflect tectonic processes starting, then temporarily stopping, the 27 ka Oruanui supereruption (530 km 3 magma; Taupo, New Zealand). Subordinate (3%–16%) biotite-bearing pumice lapilli occur in fall deposits from phases 1 and 2 (of 10) among the biotite-free “normal...
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Journal Article
Journal: Geology
Published: 01 January 2004
Geology (2004) 32 (1): e54–e55.
... supereruption revival : Geology , v. 32 , p . 61 – 64 . doi:10.1130/G19903.1 1086-9379(1994)029[0066:NOOAMI]2.0.CO;2 Prasad M.S. 1994 , New occurrences of Australasian microtektites in the Central...
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Journal Article
Journal: Geology
Published: 01 January 2004
Geology (2004) 32 (1): e54.
.... The article by Lee et al. (2004) suggests that at least one “supereruption” from the Toba caldera, Sumatra, was associated with a climatic warming, rather than a cooling trend. The background to this is that Rampino and Self (1992 , 1993) originally suggested that the supereruption that produced...
Image
Generalized caldera outlines for the three rhyolitic supereruptions investigated in this study: Bishop (modified from Wilson and Hildreth 1997), Oruanui (modified from Wilson 2001), and Huckleberry Ridge (Myers et al. 2016). Stars on each map represent sampling locations, and in some cases the same fall layer was collected in multiple locations (see Table 1 and Supplemental1 Table 1 for more information). (Color online.)
Published: 01 June 2018
Figure 1. Generalized caldera outlines for the three rhyolitic supereruptions investigated in this study: Bishop (modified from Wilson and Hildreth 1997 ), Oruanui (modified from Wilson 2001 ), and Huckleberry Ridge ( Myers et al. 2016 ). Stars on each map represent sampling locations
Journal Article
Journal: Geology
Published: 01 August 2013
Geology (2013) 41 (8): 867–870.
... and spatial organization of its heterogeneities prior to eruption, are inter-related consequences of the balance between the rate of magma influx and the rate of cooling. The products of caldera-related silicic supereruptions (5 × 10 2 to 5 × 10 3 km 3 ) are particularly useful for placing constraints...
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First thumbnail for: Tracking the evolution of large-volume silicic mag...
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Published: 01 January 2000
DOI: 10.1130/0-8137-2345-0.71
Image
Magma volume and flux estimates for granitic plutons (blue squares) and volcanic rocks (red circles). Deposits noted in the literature as supereruptions fall in the gray shaded area. One other high volume field with low flux includes multiple units and is therefore not considered a supereruption. Supereruption magmas appear to accumulate orders of magnitude faster than comparable volumes of plutonic rocks. Modified from Mills and Coleman (2013) and Frazer et al. (2014).
Published: 01 April 2016
F igure 4 Magma volume and flux estimates for granitic plutons (blue squares) and volcanic rocks (red circles). Deposits noted in the literature as supereruptions fall in the gray shaded area. One other high volume field with low flux includes multiple units and is therefore not considered
Journal Article
Journal: Geology
Published: 26 July 2017
Geology (2017) 45 (9): 843–846.
... Toba (Indonesia) supereruption. More precise 40 Ar/ 39 Ar dates are available for the timing of the Toba supereruption, but while greatly improved, ice core records are not tied to absolute chronologies over this specific time interval to test for synchronicity. Here we show a rapid transition...
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... discuss felsic (explosive) and mafic (flood lava) supereruptions and their potential atmospheric and environmental effects on both planets. On Earth, felsic supereruptions recur on average about every 100–200,000 years and our present knowledge of the 73.5 ka Toba eruption implies that such events can...
Journal Article
Journal: Geology
Published: 10 August 2023
Geology (2023) 51 (11): 1001–1006.
... likely originated from the Campanian volcanic province to the north. The time interval during which the megabeds were deposited includes the 39.8 ka Campanian ignimbrite supereruption of the Campi Flegrei caldera, Italy, which is among the largest known eruptions on Earth, and the 14.9 ka Neapolitan...
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Journal Article
Journal: Geosphere
Published: 23 September 2022
Geosphere (2022) 18 (6): 1679–1709.
... the production of silicic magmas in a continental arc flare-up, where small volumes of magma rarely survive homogenization into the regional magmatic system that is dominated by supereruptions of monotonous dacitic ignimbrites. The fall deposit and thin flow unit that record the first stage of the eruption...
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First thumbnail for: Rhyolitic melt production in the midst of a contin...
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Journal Article
Journal: Geology
Published: 01 September 2015
Geology (2015) 43 (9): 823–826.
...Lily J. Jackson; Jeffery R. Stone; Andrew S. Cohen; Chad L. Yost Abstract The impact of the ca. 75 ka Mount Toba (Indonesia) supereruption on regional and global climate has been controversial. East Africa is pivotal for qualifying this impact, specifically in addressing a hypothesis...
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First thumbnail for: High-resolution paleoecological records from Lake ...
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Third thumbnail for: High-resolution paleoecological records from Lake ...