skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: The Year Leading to a Supereruption

Abstract

Supereruptions catastrophically eject 100s-1000s of km3 of magma to the surface in a matter of days to a few months. In this study, we use zoning in quartz crystals from the Bishop Tuff (California) to assess the timescales over which a giant magma body transitions from relatively quiescent, pre-eruptive crystallization to rapid decompression and eruption. Quartz crystals in the Bishop Tuff have distinctive rims (<200 μm thick), which are Ti-rich and bright in cathodoluminescence (CL) images, and which can be used to calculate Ti diffusional relaxation times. We use synchrotron-based x-ray microfluorescence to obtain quantitative Ti maps and profiles along rim-interior contacts in quartz at resolutions of 1–5 μm in each linear dimension. We perform CL imaging on a scanning electron microscope (SEM) using a low-energy (5 kV) incident beam to characterize these contacts in high resolution (<1 μm in linear dimensions). Quartz growth times were determined using a 1D model for Ti diffusion, assuming initial step functions. Minimum quartz growth rates were calculated using these calculated growth times and measured rim thicknesses. Maximum rim growth times span from ~1 min to 35 years, with a median of ~4 days. More than 70% of rim growth times are less thanmore » 1 year, showing that quartz rims have mostly grown in the days to months prior to eruption. Minimum growth rates show distinct modes between 10-8 and 10-10 m/s (depending on sample), revealing very fast crystal growth rates (100s of nm to 10s of μm per day). Our data show that quartz rims grew well within a year of eruption, with most of the growth happening in the weeks or days preceding eruption. Growth took place under conditions of high supersaturation, suggesting that rim growth marks the onset of decompression and the transition from pre-eruptive to syn-eruptive conditions.« less

Authors:
; ;
Publication Date:
Research Org.:
Chicago Univ.
Sponsoring Org.:
USDOE Office of Science (SC); National Science Foundation (NSF)
OSTI Identifier:
1337462
Alternate Identifier(s):
OSTI ID: 1326680
Grant/Contract Number:  
FG02-94ER14466; AC02-06CH11357; EAR-1151337; EAR-1128799
Resource Type:
Journal Article: Published Article
Journal Name:
PLoS ONE
Additional Journal Information:
Journal Name: PLoS ONE Journal Volume: 11 Journal Issue: 7; Journal ID: ISSN 1932-6203
Publisher:
Public Library of Science (PLoS)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Gualda, Guilherme A. R., Sutton, Stephen R., and Schmitt, ed., Axel K. The Year Leading to a Supereruption. United States: N. p., 2016. Web. doi:10.1371/journal.pone.0159200.
Gualda, Guilherme A. R., Sutton, Stephen R., & Schmitt, ed., Axel K. The Year Leading to a Supereruption. United States. https://doi.org/10.1371/journal.pone.0159200
Gualda, Guilherme A. R., Sutton, Stephen R., and Schmitt, ed., Axel K. 2016. "The Year Leading to a Supereruption". United States. https://doi.org/10.1371/journal.pone.0159200.
@article{osti_1337462,
title = {The Year Leading to a Supereruption},
author = {Gualda, Guilherme A. R. and Sutton, Stephen R. and Schmitt, ed., Axel K.},
abstractNote = {Supereruptions catastrophically eject 100s-1000s of km3 of magma to the surface in a matter of days to a few months. In this study, we use zoning in quartz crystals from the Bishop Tuff (California) to assess the timescales over which a giant magma body transitions from relatively quiescent, pre-eruptive crystallization to rapid decompression and eruption. Quartz crystals in the Bishop Tuff have distinctive rims (<200 μm thick), which are Ti-rich and bright in cathodoluminescence (CL) images, and which can be used to calculate Ti diffusional relaxation times. We use synchrotron-based x-ray microfluorescence to obtain quantitative Ti maps and profiles along rim-interior contacts in quartz at resolutions of 1–5 μm in each linear dimension. We perform CL imaging on a scanning electron microscope (SEM) using a low-energy (5 kV) incident beam to characterize these contacts in high resolution (<1 μm in linear dimensions). Quartz growth times were determined using a 1D model for Ti diffusion, assuming initial step functions. Minimum quartz growth rates were calculated using these calculated growth times and measured rim thicknesses. Maximum rim growth times span from ~1 min to 35 years, with a median of ~4 days. More than 70% of rim growth times are less than 1 year, showing that quartz rims have mostly grown in the days to months prior to eruption. Minimum growth rates show distinct modes between 10-8 and 10-10 m/s (depending on sample), revealing very fast crystal growth rates (100s of nm to 10s of μm per day). Our data show that quartz rims grew well within a year of eruption, with most of the growth happening in the weeks or days preceding eruption. Growth took place under conditions of high supersaturation, suggesting that rim growth marks the onset of decompression and the transition from pre-eruptive to syn-eruptive conditions.},
doi = {10.1371/journal.pone.0159200},
url = {https://www.osti.gov/biblio/1337462}, journal = {PLoS ONE},
issn = {1932-6203},
number = 7,
volume = 11,
place = {United States},
year = {Wed Jul 20 00:00:00 EDT 2016},
month = {Wed Jul 20 00:00:00 EDT 2016}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at https://doi.org/10.1371/journal.pone.0159200

Citation Metrics:
Cited by: 37 works
Citation information provided by
Web of Science

Save / Share:

Works referenced in this record:

Timescales of Magma Recharge and Reactivation of Large Silicic Systems from Ti Diffusion in Quartz
journal, April 2012


The titanium-in-quartz (TitaniQ) thermobarometer: A critical examination and re-calibration
journal, May 2012


Ti diffusion in quartz
journal, January 2007


New Perspectives on the Bishop Tuff from Zircon Textures, Ages and Trace Elements
journal, December 2013


Zoned quartz phenocrysts from the rhyolitic Bishop Tuff
journal, September 2001


Fragmentation, nucleation and migration of crystals and bubbles in the Bishop Tuff rhyolitic magma
journal, March 2004


TitaniQ: a titanium-in-quartz geothermometer
journal, September 2006


The Bishop Tuff giant magma body: an alternative to the Standard Model
journal, August 2013


Micro-analytical Perspectives on the Bishop Tuff and its Magma Chamber
journal, March 2015


Rapid remobilization of magmatic crystals kept in cold storage
journal, February 2014


Magmatic processes in the Bishop Tuff rhyolitic magma based on trace elements in melt inclusions and pumice matrix glass
journal, September 2012


Climatic, environmental and human consequences of the largest known historic eruption: Tambora volcano (Indonesia) 1815
journal, June 2003


Monitoring super-volcanoes: geophysical and geochemical signals at Yellowstone and other large caldera systems
journal, June 2006

  • Lowenstern, Jacob B.; Smith, Robert B.; Hill, David P.
  • Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, Vol. 364, Issue 1845
  • https://doi.org/10.1098/rsta.2006.1813

The effects and consequences of very large explosive volcanic eruptions
journal, June 2006


Ascent-driven crystallisation of dacite magmas at Mount St Helens, 1980–1986
journal, March 2001


The effects of magma flux variations on the formation and lifetime of large silicic magma chambers: EFFECTS OF MAGMA FLUX VARIATIONS
journal, March 2013


Evolution of Bishop Tuff Rhyolitic Magma Based on Melt and Magnetite Inclusions and Zoned Phenocrysts
journal, March 2000


Low-Pressure Origin of High-Silica Rhyolites and Granites
journal, September 2013


Compositional Zoning of the Bishop Tuff
journal, March 2007


Gradients in H 2 O, CO 2 , and exsolved gas in a large-volume silicic magma system: Interpreting the record preserved in melt inclusions from the Bishop Tuff
journal, September 1999


Phase-equilibrium geobarometers for silicic rocks based on rhyolite-MELTS—Part 3: Application to the Peach Spring Tuff (Arizona–California–Nevada, USA)
journal, March 2015


Supervolcanoes and Their Explosive Supereruptions
journal, February 2008


Timescales of Quartz Crystallization and the Longevity of the Bishop Giant Magma Body
journal, May 2012


Lead isotopes by LA-MC-ICPMS: Tracking the emergence of mantle signatures in an evolving silicic magma system
journal, April 2007


Crystallization Stages of the Bishop Tuff Magma Body Recorded in Crystal Textures in Pumice Clasts
journal, January 2012


The Bishop Tuff: New Insights From Eruptive Stratigraphy
journal, July 1997


TitaniQ under pressure: the effect of pressure and temperature on the solubility of Ti in quartz
journal, March 2010


A Nd, Sr and O isotopic investigation into the causes of chemical and isotopic zonation in the Bishop Tuff, California
journal, June 1984


Quantitative 3D petrography using x-ray tomography: Application to Bishop Tuff pumice clasts
journal, June 2006


Melt inclusion shapes: Timekeepers of short-lived giant magma bodies
journal, September 2015


Timescales of mixing and mobilisation in the Bishop Tuff magma body: perspectives from diffusion chronometry
journal, July 2014


Cause of chemical zoning in the Bishop (California) and Bandelier (New Mexico) magma chambers
journal, June 1992


Quantification of pre-eruptive exsolved gas contents in silicic magmas
journal, October 1995


Quantitative 3D petrography using X-ray tomography 2: Combining information at various resolutions
journal, December 2010


Rhyolite-MELTS: a Modified Calibration of MELTS Optimized for Silica-rich, Fluid-bearing Magmatic Systems
journal, January 2012


Oxygen isotope study of the Long Valley magma system, California: isotope thermometry and convection in large silicic magma bodies
journal, November 2002


Quartz zoning and the pre-eruptive evolution of the ~340-ka Whakamaru magma systems, New Zealand
journal, June 2011


Volcanism, structure, and geochronology of Long Valley Caldera, Mono County, California
journal, February 1976


Pre-eruption recharge of the Bishop magma system
journal, January 2007


Zircon-scale insights into the history of a Supervolcano, Bishop Tuff, Long Valley, California, with implications for the Ti-in-zircon geothermometer
journal, May 2010


A Study of Cathodoluminescence and Trace Element Compositional Zoning in Natural Quartz from Volcanic Rocks: Mapping Titanium Content in Quartz
journal, November 2012


U-Pb dating of zircon in the Bishop Tuff at the millennial scale
journal, January 2007


Microfluorescence and Microtomography Analyses of Heterogeneous Earth and Environmental Materials
journal, January 2002


TitaniQ recrystallized: experimental confirmation of the original Ti-in-quartz calibrations
journal, February 2015