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Author Correction: Volatile resorption expedites eruption onset in large silicic systems.

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Volatile resorption expedites eruption onset in large silicic systems.

Franziska Keller1,2, Meredith Townsend3, Juliana Troch4

  • 1Department of Earth and Environmental Sciences, Lehigh University, Bethlehem, PA, USA. kellerf@tcd.ie.

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Volatile resorption, not just exsolution, can accelerate magma chamber pressurization, potentially triggering hazardous silicic caldera-forming eruptions. Monitoring for resorption signatures may offer early eruption warnings.

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Area of Science:

  • * Volcanology
  • * Geochemistry
  • * Earth Sciences

Background:

  • * Silicic caldera-forming eruptions are highly hazardous but poorly understood.
  • * Volatile exsolution is a known driver, but other mechanisms may exist.

Purpose of the Study:

  • * To investigate the role of volatile resorption in magma chamber pressurization.
  • * To determine conditions under which volatile resorption occurs and its impact on eruption dynamics.

Main Methods:

  • * Utilized a thermo-mechanical magma chamber model.
  • * Analyzed the Aso-4 eruption as a potential natural case study.

Main Results:

  • * Volatile resorption can pressurize magma chambers faster than exsolution in rapidly recharged systems.
  • * Resorption is driven by pressure increase and crystal melting.
  • * Model predicts resorption at recharge rates >10-2.4 km3/yr, amplifying pressurization by reducing compressibility.

Conclusions:

  • * Volatile resorption is a key process in destabilizing large silicic magma systems.
  • * This process accommodates and promotes rapid chamber pressurization, leading to eruptions.
  • * Detecting resorption signatures could provide crucial early warning for volcanic eruptions.