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Updated: Jul 4, 2026

Data Processing Methods for 3D Seismic Imaging of Subsurface Volcanoes: Applications to the Tarim Flood Basalt
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Deciphering the evolution of Deception Island's magmatic system.

A Geyer1, A M Álvarez-Valero2, G Gisbert3

  • 1Institute of Earth Sciences Jaume Almera, ICTJA, CSIC, Lluis Sole i Sabaris s/n, 08028, Barcelona, Spain. ageyer@ictja.csic.es.

Scientific Reports
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PubMed
Summary

Deception Island

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Area of Science:

  • Volcanology
  • Geochemistry
  • Petrology

Background:

  • Deception Island is a highly active Antarctic volcano with over 20 explosive eruptions in two centuries.
  • Recent eruptions and unrest episodes highlight the ongoing risk of future volcanic activity.

Purpose of the Study:

  • To develop a comprehensive evolutionary model of the magmatic system beneath Deception Island.
  • To integrate new petrologic and geochemical data with existing regional studies.

Main Methods:

  • Integration of new petrologic and geochemical data.
  • Analysis of an extensive database of previous regional studies.
  • Development of a unifying evolutionary model for the magmatic system.

Main Results:

  • Identification of a complex plumbing system with multiple shallow magma chambers (≤10 km depth).
  • Magma supply originates directly from the mantle or a crust-mantle boundary accumulation zone (15-20 km depth).

Conclusions:

  • Understanding Deception Island's magmatic system is crucial for interpreting monitoring data during unrest.
  • Improved understanding enhances the effectiveness of future eruption forecasting.