In 2017 we went to the Diamond Light Source to test if we could make obsidian by slowly cooling bubbly magma inducing resorption of the bubbles. We found that we could, so long as the cooling was very slow.
www.nature.com/articles/s41...
@jameshickey77.bsky.social
Volcanologist π | Geophysicist | Associate Professor @ Uni of Exeter, Dept Earth & Environmental Sciences | SciComm & Outreach | ππΌββοΈππ΄πΌββοΈπ§πΌββοΈπ€ΈππΌββοΈβ·π§πΌββοΈ
In 2017 we went to the Diamond Light Source to test if we could make obsidian by slowly cooling bubbly magma inducing resorption of the bubbles. We found that we could, so long as the cooling was very slow.
www.nature.com/articles/s41...
#academia
11.01.2026 19:31 β π 1 π 0 π¬ 0 π 0
Whispers in Brexitβ¦
www.bbc.co.uk/news/article...
Final Registration for the VMSG Annual Meeting 2026 is fast approaching. Abstract deadline has been extended until Friday 8 Dec. We aim to inform registrants of their presentation type (talk/poster) & time slot by 12 Dec.
We look forward to welcoming you all to Southampton!
Met Office news release: 27 November 2025 - New Met Office service to cut aviation disruption from volcanic ash
Today, we're launching our advanced volcanic ash forecasting service to reduce aviation disruption. In 2010, EyjafjallajΓΆkull closed much of Europe's airspace; our new service could halve such disruption and keep skies open during future eruptions.
Read more: www.metoffice.gov.uk/about-us/new...
And probably cost the best part of Β£200 for the pleasure...? π
12.11.2025 09:49 β π 1 π 0 π¬ 1 π 0
Vital piece of investigative reporting from Sky. They've uncovered the X algorithm which feeds users extremist right wing material from the moment they join the site. It is a far-right radicalisation engine, by design.
news.sky.com/story/the-x-...
Annie manually read & classified 7000+ Facebook posts to assess how community use of a local Facebook group can inform on changes in social behaviour & emotional response during a highly destructive volcanic eruption!
There are some surprising results!
π¨ new paper and proud supervisor moment π¨
A former 4th year undergraduate research project student has published her work: www.jvolcanica.org/ojs/index.ph...
Social sensing the 2018 KΔ«lauea Volcanic eruption through community Facebook use
#volcanology #risk #hazards π§ͺβοΈπ
This new works extends my own work from back in 2014 where we did a similar thing, but with much simpler Finite Element models: www.sciencedirect.com/science/arti...
Thanks to @ukri.org NERC for funding the current work, with other support and community from @uk-comet.bsky.social ππβοΈπ§ͺ
As well as testing the models, we spend time discussing their implementation and benchmarking.
We provide a range of model files with the paper, as well as detailed instructions on how to build poroelastic magma mush deformation models using Finite Element modelling software (COMSOL Multiphysics).
We also contrast entirely poroelastic magma mushes, with magma mushes that contain both poroelastic regions AND melt-rich domains.
The composition of the mush can alter both the spatial and temporal ground deformation patterns for an identical magma resupply simulation.
Melt compressibility also impacts the temporal evolution of ground deformation, and how we may experience post-injection uplift or subsidence.
Awkwardly, in terms of interpreting deformation, the effect of compressibility also trades off with mush reservoir geometry...
In this paper, Rami explores different modelling approaches to simulate volcano ground deformation from melt resupply to magma mushes.
Key parameters are tested: porosity, permeability, compressibility, mush geometry, and composition.
Melt compressibility has a big effect on deformation amplitude.
π¨ New Paper Day π¨
Benchmarking and testing poroelastic dynamic magma mush volcano deformation models - one for all the magma mush or volcano deformation enthusiasts out there πβοΈπ§ͺ
Thread π§΅ below β¬οΈ
www.sciencedirect.com/science/arti...
#volcano #geophysics #modelling #volcanology #magma
Looking for your next professional adventure? Here's your opportunity! β¨
Apply for this Associate Professor position in Sustainable Earth Energy before the 31st Oct. 2025 and join the Durham University Department of Earth Sciences!
Find out moreπ durham.taleo.net/careersectio...
#DUJobs #Hiring
100% this.
Also, when papers spend weeks (or more) waiting for someone to tick a box to move it to the next stage of the process, and then they demand comments on proofs within 3 days and with no regard for a weekendβ¦!
I'm hiring a new post-doc to work on the @rottnrock.bsky.social project! Come help us understand hydrothermal alteration and volcanic hazards!
Advert here:
www.unistra.fr/universite/t...
πΈ Recent ROTTnROCK trip to Mombacho, Nicaragua π
Super interesting stuff! Check. It. Out!
ππΌ
New paper! The last of EloΓ―se Bretagne's PhD papers is out! Here we generalize our models for permeability to magma mush at any melt fraction. Take a look if you want to model percolative flow of melt through a magma mush and if you want to account for crystal shape.
OA: dx.doi.org/10.1029/2025...
"If you ignore all the fact-free βworld-leading this and world leading thatβ BS..." --> same way I get through every day at work π
24.09.2025 08:13 β π 1 π 0 π¬ 1 π 0
βοΈ π§ͺ Another big addition to the remarkable M8.8 earthquake sequence offshore Kamchatka: a M7.8 - the biggest aftershock so far.
With foreshocks, aftershocks, aftershocks of foreshocks, and foreshocks of aftershocks, it's hard to keep these earthquakes straight! Read more about what's going on:
That's an incredible snap, mate πΈ!
07.08.2025 15:09 β π 1 π 0 π¬ 1 π 0The story continues...
07.08.2025 15:00 β π 1 π 0 π¬ 1 π 0Haha, yeh, and it really didn't help the point that I was trying to make, in that "even ChatGPT would draw a mush extending to the base of the crust" π€£π
07.08.2025 14:55 β π 1 π 0 π¬ 1 π 0AI iS gOiNG tO TaKE oVeR tHE W0rLd...
07.08.2025 14:50 β π 5 π 0 π¬ 3 π 1Some of the plumes at Krasheninnikov certainly looked quite steam rich π§
05.08.2025 21:23 β π 1 π 0 π¬ 1 π 0This one will have to go front facing on the bookshelf! π π
02.08.2025 10:42 β π 13 π 1 π¬ 1 π 0Sarina clearly lives for the dramaβ¦!
22.07.2025 21:39 β π 2 π 0 π¬ 1 π 0