GMPV Geochemistry, Mineralogy, Petrology & Volcanology
The 2018 Outstanding Student Poster and PICO (OSPP) Award is awarded to Caron Vossen for the poster/PICO entitled:
Can we predict seismogenic failure of single-phase magmatic liquids? (Vossen, C: E. J.; Vasseur, J.; Wadsworth, F. B.; Witcher, T.; Unwin, H.; Dingwell, D. B.)
Click here to download the poster/PICO file.
Caron Vossen is a PhD student at Ludwig-Maximilians-Universität München, Germany. She is exploring the conditions for occurrence of volcanic lightning by combining laboratory shock tube experiments with field measurements at active volcanoes.
The poster presented at the EGU Assembly 2018 shows the research Caron has carried out as a Master student at Utrecht University, the Netherlands, in collaboration with Dr. Jérémie Vasseur and Dr. Fabian Wadsworth at Ludwig-Maximilians-Universität München. This research focused on whether it is possible to forecast failure of single-phase viscoelastic magmatic liquids using acoustic emissions. The goal was to get more insight into why certain volcanic eruptions are poorly predicted in real-time. Scaled laboratory deformation experiments were performed at volcanic conditions in which acoustic emissions were tracked in situ. A power law was used to predict the time of failure and was compared to other accelerating models to determine which model describes the acceleration of acoustic signals best. It could be concluded that the forecasted time of failure for single-phase magmas is at best one order of magnitude off compared to the observed time of failure. Why? Check out the poster!