9 Sep 2026 – 9 Sep 2026 | 3PM (GMT)
Location: MS Teams
Main Event: #FocusOnVIPS Online webinar series
The IAVCEI Commission on Volcanic and Igneous Plumbing Systems invites you to join us for the next #FocusOnVIPS Online webinar. Our aim of these short online talks is to showcase the exciting research going on in our VIPS community and promote discussion across methodologies and disciplines. Each session features invited speakers presenting their latest work and ideas in brief talks, followed by questions and constructive discussions.
Each #FocusOnVIPS webinar will take place on MS Teams and they will not last over one hour. You must register in advance to attend in advance using the link below.
Our next #FocusOnVIPS talks will focus on Crystal Records and Surface Drivers of VIPS with two invited speakers:
- Dr. Pablo Moreno-Yaeger, University of Wisconsin-Madison, USA. “Impacts of ice sheet loading on magma plumbing systems: Insights from the Andean Southern Volcanic Zone”
- Prof. Madeleine Humphreys, Durham University, UK. “Apatite as a window onto magmatic plumbing system evolution”
📅 Date: Wednesday 9th September
🕛 Time: 15:00 (GMT)
🕐 Duration: 1 hour
🔗 Connection link for Registration: https://forms.gle/JgDP7zwpqqnbWWhW6
We look forward to seeing you as we catch up with the latest VIPS research.
Please feel free to share this invitation with colleagues and students who may be interested.
Webinar Abstracts
Impacts of ice sheet loading on magma plumbing systems: Insights from the Andean Southern Volcanic Zone Dr. Pablo Moreno-Yaeger, University of Wisconsin-Madison, USA.
Surface (un)loading due to thickening and thinning of ice sheets can impact eruptive rates and compositions where the lithosphere is thin, as in Iceland. However, its influence on continental arc volcanoes atop thicker lithosphere is less well known. I will discuss how Villarrica and Mocho-Choshuenco volcanoes in the Southern Volcanic Zone (Chile) responded to ice (un)loading before, during and after the Last Glacial Maximum (35 to 18 ka). Temporal, geochemical, and mineral constraints coupled with paleoclimate reconstructions and stress change models indicate that eruption rates declined three-fold during peak glaciation. Following rapid deglaciation, Villarrica erupted basaltic andesites and andesites and underwent caldera collapse at 16.8 ka. In contrast, Mocho-Choshuenco erupted deeply stored dacites and rhyolites and collapsed at 11.5 ka. These contrasting responses suggest that magma plumbing system architecture modulates how volcanoes respond to glaciation.
Apatite as a window onto magmatic plumbing system evolution Prof. Madeleine Humphreys, Durham University, UK.
The transport and storage of magma within the earth’s crust is influenced by three key factors: melt composition, crystal content and volatile abundance, which together control magma buoyancy and viscosity. Reconstructing how these properties change through time is therefore essential for understanding the behaviour of magmatic systems. Whereas melt inclusions can lose (or gain) water through diffusion after entrapment, apatite inclusions trapped in major mineral phases are more resistant to chemical modification. Apatite can therefore provide a robust record of changes in magma properties and can trace variations in all three of these important factors. I will give an overview of how apatite can be used to track the evolution of magmatic systems, drawing on examples from two contrasting volcanic settings: Santorini, Greece, and Tenerife, Canary Islands. These case studies highlight how apatite can reveal the pathways, storage conditions and dynamics of magma beneath active volcanoes.
In case you missed it: You can find our latest webinar on VIPS analogue and numerical models, and our past webinars, on the VIPS Commission YouTube channel: https://www.youtube.com/watch?v=3TuAU4Hljf0&t=5s