iiinova — where your digital self keeps evolving

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Danielle McLean @danmclean.bsky.social · 05/05/2026

🔔🌋Tonight is the @cot-iavcei.bsky.social social gathering at #EGU26 We will be meeting at 7Stern brewery from 8pm Note the kitchen closes at 9pm so please place any food ordered when you arrive. 🍲

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Commission on Tephrochronology @cot-iavcei.bsky.social · 03/05/2026

Note that the flyer says the COT social is on Wednesday, that is incorrect- it is on Tuesday! Oops! Please rsvp if interested! The link is correct. #EGU26 @tephraportal.bsky.social @oxfordtephra.bsky.social

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UAlberta Volcanic Ash Research Group @tephrotastic.bsky.social · 01/05/2026

VARG will be there! @hanaayousif.bsky.social will talk about troublesome tephra from the Mount Logan ice core. Matthew Bolton will unveil his app "VARG Tools", designed to make geochemical data parsing & age modelling easier ...and a non-tephra(!) talk from @tephrabird.bsky.social. 🌋🧪⚒️ #EGU2026

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Commission on Tephrochronology @cot-iavcei.bsky.social · 26/02/2026

A great opportunity to submit a paper to a new joint publication between the AGU and Geological Society: Geohorizons special publication on tephra & hazards. Born our last International tephra meeting, they are still taking submissions! 🧪⚒️🌋 #tephra @geolsoc.bsky.social @agu.org @iavcei.bsky.social

Flyer for a Geohorizon special issue call for papers, it reads:

Tephra: from reconstructing past volcanic eruptions to
modelling and forecasting future hazards
Tephra produced during explosive volcanic eruptions can generate far-reaching social, economic, and environmental impacts with potentially devastating consequences for communities and livelihoods. By improving our understanding of how tephra is generated, transported and deposited - both during past events and ongoing activity - we can reduce these impacts and strengthen preparedness for future eruptions.
This GeoHorizons volume will assemble a collection of papers that advance tephra studies, reflecting significant developments in the field over the past two decades. The volume will be organized into three sections:
1- Reconstructing past eruptions
This opening section will highlight studies that use tephra to build eruption histories and reconstruct processes from historical and prehistoric explosive events. We welcome research
involving field and deposit-based investigations, studies of sedimentary, archaeological and ice archives, modelling of past eruptions, and textural, geochemical and petrological analysis.
2- The generation, dispersion and sedimentation of tephra
Focusing on recent or ongoing tephra-producing eruptions, this section invites studies examining trends in deposit characteristics such as grainsize and thickness, ash aggregation and particle settling processes, experimental work on plume dynamics and dispersion, and modelling of
tephra generation transport and deposition.
3- Forecasting and mitigating the impacts of future
explosive eruptions
The final section looks to the future, with topics including tephra dispersion and impact modelling, climatic impacts and projections, volcanic hazard mapping, and applied studies that support risk reduction.

second page of flyer for special issue that says:

This GeoHorizons volume will be of interest to physical volcanologists, geologists, tephrochronologists, hazard and climate modellers, and computational volcano and natural disaster scientists across academia, government and industry.

Contact us, we'd love to feature your research
If are interested in contributing to this volume, or have any questions, please get in touch with the volume editors via the email addresses listed below.
Volume Editors
Alastair G. E. Hodgetts (University of Edinburgh, UK) - alastair.hodgetts@ed.ac.uk
Thomas J. Aubry (University of Oxford, UK) - thomas.aubry@earth.ox.ac.uk
Frances M. Beckett (Met Office, UK) - frances.beckett@metoffice.gov.uk
Paul A. Jarvis (Earth Sciences New Zealand, New Zealand) - p.jarvis@gns.cri.nz
Britta J. L. Jensen (University of Alberta, Canada) - bjjensen@ualberta.ca
Elodie Lebas (Université Clermont Auvergne, France) - elodie.lebas@uca.fr

GeoHorizons is committed to the principles of open science. This volume will be published open access, and therefore eligibility under a Read and Publish agreement or the payment of an Article Processing Charge (APC) is required on acceptance of an article for publication. Corresponding authors at participating Read and Publish institutions can publish chapters in GeoHorizons at no charge.

Check if your institution has a Read and Publish agreement www.geolsoc.org.uk/OA

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Commission on Tephrochronology @cot-iavcei.bsky.social · 06/02/2026

XXII INQUA Congress 2027 in Lucknow, India. Abstract deadline: 15th Feb 2026 COT sponsored session on Tephrochronology across multiple disciplines. Should be fantastic for many tephra fans out there! 🧪⚒️🌋 @oxfordtephra.bsky.social @camtephra.bsky.social @iavcei.bsky.social @inquaecr.bsky.social

Tephra session advertisement for INQUA congress in India, 2027.

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UAlberta Volcanic Ash Research Group @tephrotastic.bsky.social · 04/02/2026

We are kicking off some new work in the Northern Cordilleran Volcanic Province this summer we hope! Exciting times, with Shaun leading the way. Some pics from 2021 when we collected the cores presented in the paper 🧪🌋 #fieldwork #geology #tephra

Collecting a Livingston sediment core from a lake in northwestern BC

Getting bc ready to collect a reasoner core. NW BC is stunning and remote!

Always important to remain hydrated while working

Lake core from Morcheau Lake showing the upper Findlay tephra. Not sure what volcano it is coming from but hopefully we will find out with new field work!

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Commission on Tephrochronology @cot-iavcei.bsky.social · 22/12/2025

Have a weird urge to write an abstract over Christmas? Tephrochronology Beyond Boundaries: Chronology, Correlation, and Innovation in Earth System Studies Tephrochronology Keynote: Victoria Smith Deadline: 15 Jan 2026, 13:00 CET @oxfordtephra.bsky.social @egu.eu @iavcei.bsky.social

meetingorganizer.copernicus.org

Session SSP2.7

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Britta Jensen @tephrabird.bsky.social · 19/12/2025

I don't usually do this but if you love nature & quality journalism please donate to The Narwhal. Their work is more important than ever, and are currently trying to raise $200,000 to keep the lights on. You get a charitable receipt, and a donor is matching funds. Please share 🧪⚒️ @thenarwhal.ca

thenarwhal.ca

Alberta officials stalled coal mine pollution study | The Narwhal

An Alberta government scientist was prevented from speaking publicly about his coal mine pollution research, emails show

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Commission on Tephrochronology @cot-iavcei.bsky.social · 20/11/2025

🌋 Hello tephra & volcano fans 🌋 We have some announcements, including THREE tephra sessions at the #EGU2026 and TWO special issues! Check out our flyer below with all the details, and pass it on! @egu.eu @ingvterremoti.bsky.social @iavcei.bsky.social @tephraportal.bsky.social 🧪⚒️

Commission on Tephrochronology presents three sessions at the EGU, come and submit and abstract:
GMPV11.1 “Tephra processes and dispersal: from tephrochronology to hazard assessment applications in volcanology”
SSP2.7 “Tephrochronology Beyond Boundaries: Chronology, Correlation and Innovation in Earth System Studies”
ESSI3.6 "From Principles to Practice: Multidisciplinary Approaches to Data-Driven Tephra Research"

Details on the submission process can be found at https://www.egu26.eu/authors/how-to-submit.html

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The Walrus @thewalrus.ca · 27/10/2025

Falsifying manifests and locations. Turning off identification systems. Conducting offshore ship-to-ship transfers. This is piracy in the modern era, and Russia is doing all of it to shield its shadow tanker fleet. Writer Wesley Wark investigates: thewalrus.ca/a-ghost-fleet-of...

On the left: an image of an oil tanker ship at sea. On the right: text that reads “A ghost fleet of tankers is keeping Russia’s war machine afloat. The west can’t stop it. How Putin outsmarted the oil sanctions”

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Oxford Tephrochronology Group @oxfordtephra.bsky.social · 16/10/2025

🚨New paper! Our latest study, led by Sophie Vineberg, integrates proximal & distal tephra records to reveal the timing and dispersal of large explosive eruptions at Aso volcano (Japan) 🌋 🔗 doi.org/10.1016/j.jvolgeores.2025.108436 #tephra #volcanology #Aso #Japan #LakeSuigetsu #tephrochronology

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Zoja Vukmanovic @3oja.bsky.social · 16/10/2025

I would like to advertise a PhD project on Magma emplacement and its evolution: aries-dtp.ac.uk/studentships... for those who have an interest in petrology, rock microstructure, and fieldwork. Supervising team: Dr William McCarty, Prof Marian Holness, Dr Eduardo Mansur, Dr Gareth Fabbro and me.

aries-dtp.ac.uk

Magma emplacement and its evolution: deciphering between magmatic and tectonic processes | Aries

Dr Zoja Vukmanovic, School of Environmental Sciences, University of East Anglia Dr Gareth Fabbro, School of Environmental Sciences, University of East Anglia Dr Will McCarthy, University of St Andrews...

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NORDQUA @nordqua.org · 30/09/2025

Hello BlueSky! 👋 We are thrilled to be here and connect with everyone on this new platform! Interested in Quaternary science in the Nordics? Then follow us for news/opportunities/jobs, and more. Our network is also free to join at nordqua.org

nordqua.org

NORDQUA - The Nordic Union for Quaternary Research

Welcome to Nordqua - The Nordic Union for Quaternary Research - an organization of professional scientists from the Nordic countries.

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isset-ualberta.bsky.social @isset-ualberta.bsky.social · 11/09/2025

Hello folks! We're thrilled to announce that the 2025 University of Alberta Space Exploration Symposium will take place Wednesday, October 15th, Thursday October 16th, and Friday, October 17th. Stay tuned for more info about participation and our two fantastic keynote speakers! 🌟

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Britta Jensen @tephrabird.bsky.social · 26/09/2025

Have been laying low, but wanting do something light hearted, I will start sharing my summer for #fieldworkFriday. In May I joined the @iavcei.bsky.social @volc-ice.bsky.social field trip in Iceland. Stunning sunny days the entire time, so I can’t go back 🤣. Ready for future field work in NW BC! ⚒️🧪

Field tripper hiking up a valley to along the escarpment that the 2010 lava flows of Eyafjallajökul flowed over

Ignimbrite deposit of an eruption from to the north that was deposited around 50 ka years ago (i think!)

Incredible hyaloclastite deposits produced by an eruption under an ice sheet.

Amazing experience to do a glacier walk on Solheimajokull.

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UAlberta Volcanic Ash Research Group @tephrotastic.bsky.social · 20/05/2025

Sampling the Logan 2022 ice core for tephra!! 🌋🧊

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UAlberta Volcanic Ash Research Group @tephrotastic.bsky.social · 20/05/2025

Sampling the Logan 2022 ice core for tephra!! 🌋🧊

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Britta Jensen @tephrabird.bsky.social · 04/05/2025

Next we stop at a favourite: Saskatchewan Crossing. #strataday. Loess, paleosols, and three (!) volcanic ash: Mazama, Mount St Helens Yn and Bridge River. Doesn’t get much better, unless you like glaciers. We finish at Athabasca Glacier. Beautiful but heart breaking in her steady retreat. 🧪⚒️

TA Shaun, from VARG, in his element teaching the students about volcanic ash, you can see two clear in this picture, Mazama at his knee and he is looking at Mount St Helens Yn

A group of young Bighorn sheep by Athabasca Glacier - a classic site in the Rockies!

Student Lachlan looks to the distance inspecting end moraines with the Athabasca glacier behind him.

Saskatchewan River Crossing with the loess cap on the terrace to the right, full of silt, paleosols and tephra!

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Commission on Tephrochronology @cot-iavcei.bsky.social · 24/04/2025

A reminder that nominations are open for our executive and location for the next meeting. Please email COT_general@protonmail.com if you are interested before May 1st. This is a great opportunity especially for early career researchers- great community and network building! 🧪🌋⚒️

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Commission on Tephrochronology @cot-iavcei.bsky.social · 09/04/2025

We made it! If you are interested Quaternary geology, archaeology, climate/environmental change and volcanology and how all those things are interconnected by volcanic ejecta, give us a follow. @inquaecr.bsky.social @iavcei.bsky.social @comvolcseds.bsky.social @iavcei-involc.bsky.social 🧪🌋⚒️

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Commission on Tephrochronology @cot-iavcei.bsky.social · 09/04/2025

CoT is seeking nominations for our executive and hosts for the next Tephra Conference (2028). Interested? Questions? Check out the flyer. Nominations are open until April 30. @iavcei.bsky.social @oxfordtephra.bsky.social @camtephra.bsky.social @tephrotastic.bsky.social @tephraportal.bsky.social 🧪🌋⚒️

CoT is having their elections and putting a call out for nominations, this image is a flyer that states all the details related to this - nominations open now and close April 30th. We will be in contact with nominees to have elections (online) starting in May 12th, closing May 30th. Reach out to us if you have any questions.

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UAlberta Volcanic Ash Research Group @tephrotastic.bsky.social · 14/03/2025

A few photos from field work in SE Alaska from last year. Taking a hike up Crater Ridge next to Mount Edgecumbe. Almost got lost in the mega-dense fog that didn’t break until we got to the top. What an adventure! #alaska #fieldworkfriday #volcano 🌋⚒️

Hiking up to Crater Ridge and the fog is finally lifting! Yay! We can see something!

Beautiful banded obsidian flows that make up parts of the obsidian domes that are built on the edge of the crater. Trusty ice ax for scale

MSc Shaun Woudstra pretty darned happy that we can finally see Mount Edgecumbe right beside us. Part of his thesis is looking at younger eruptions from the Mount Edgecumbe volcanic field.

A panorama standing on Crater Ridge looking down into the crater with Mount Edgecumbe peaking out to the left.

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Tephra Information Portal @tephraportal.bsky.social · 13/02/2025

Tephra Information Portal (TIP) is now on BlueSky Project information at www.iedadata.org/communities/...

iedadata.org

IEDA2 | tephra

A collaborative data infrastructure of three complementary data systems – EarthChem, LEPR/traceDs, SESAR

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Tephra Information Portal @tephraportal.bsky.social · 13/02/2025

We're hiring! Postdoctoral Researcher in tephrochronology-volcanology data management and end-user engagement to join the team working on the FAIR Data Communities – Tephra Information Portal (TIP) project. jobs.concord.edu/postings/3210

jobs.concord.edu

Postdoctoral Fellow in Tephra Data

Applications are invited for a Postdoctoral Researcher in tephrochronology-volcanology data management and end-user engagement to join the team working on the FAIR Data Communities – Tephra Informatio...

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UAlberta Volcanic Ash Research Group @tephrotastic.bsky.social · 28/01/2025

And last, but not least, is "The Cat" also know by various nom de guerres Orange Cat, Orange Boy, and Pumpkin Baby. This fine feral has taken a shine to Shaun, our long suffering MSc who just can't seem to get a good 14C date no matter. The Cat seems to like his company though 🙂 #cats #YEG

Homeless puss The Cat sitting on a deer head in the snow.

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UAlberta Volcanic Ash Research Group @tephrotastic.bsky.social · 28/01/2025

Not all of the cats in our hearts can live with us, but we get to hang with them when we go home! Also part of the VARG, we present Saskatchewanites Hermes and Helios, and sweet Gracie Mae in Nova Scotia.

Cute kitty Helios sticking out his tongue

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UAlberta Volcanic Ash Research Group @tephrotastic.bsky.social · 28/01/2025

Another relatively new addition to the fold is sweet (well, maybe not that sweet, we hear she is a little feisty) Nyx, who takes very good care of @zoezonneveld.bsky.social

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UAlberta Volcanic Ash Research Group @tephrotastic.bsky.social · 28/01/2025

Next we have Misha and Ollie, proud owners of Tyler, who JUST finished his BSc Honours in Geology! Congratulations kitties on getting him through that slog, with one very annoying supervisor.

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UAlberta Volcanic Ash Research Group @tephrotastic.bsky.social · 28/01/2025

Next we have very meow-y, shy, but very sweet, Consuela the elder, almost 16 and the inspiration (during house-sitting encounters bailing out a poor planning supervisor) behind more than one grad student taking the plunge into cat-ville

Consuela, always ready for bedtime. If we only all could sleep for 20 hours!

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UAlberta Volcanic Ash Research Group @tephrotastic.bsky.social · 28/01/2025

To say things are grim right now is an understatement. So we would like to share a bit of fun. In honour of VARG PhD @hanaayousif.bsky.social finally adopting her furry feline, we present "THE CATS OF VARG". We start with the cat of the hour, Pliny! Yes, in honour of Plinian eruptions. #cats 🌋

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UAlberta Volcanic Ash Research Group @tephrotastic.bsky.social · 18/01/2025

Awesome walk home last night in the blizzard. Love it! Now a beautiful crispy and cold morning. Long live winter!

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Amanda Buckiewicz @amandabux.bsky.social · 17/01/2025

This week, we spoke with the indomitable @katharinehayhoe.com about how climate science got to be so polarized and why she thinks scientists should stop trying to pretend to be neutral when it's our planet at risk. www.cbc.ca/radio/quirks...

cbc.ca

Prominent climate scientist argues it's time to ditch the 'myth of neutrality' | CBC Radio

Climate scientist Katharine Hayhoe talks to Bob McDonald about the polarization of science and how she thinks scientists need to ditch the 'myth of neutrality' and embrace their values.

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UAlberta Volcanic Ash Research Group @tephrotastic.bsky.social · 13/01/2025

How is this even a contest!? Anyone who lives in Edmonton knows magpies rule this city! Whether you love them or hate them. It is the truth. How often do you see a boreal chickadee in the city? Never. Blue jays are good corvids but too Ontario associated. Magpies. Yes. #birds #magpies #YEG

birdfriendlyedmonton.org

City Bird: Vote (final round)

What will be Edmonton's City Bird? VOTE for your favourite! We're down to the final round. More than 300 bird species have been recorded in Edmonton. Some live here year-round,...

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UAlberta Volcanic Ash Research Group @tephrotastic.bsky.social · 10/01/2025

I would never want to live in a place without winter. Snow and ice, oh my!

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UAlberta Volcanic Ash Research Group @tephrotastic.bsky.social · 10/01/2025

This is a great talk series, people from all over join in thanks to the live stream.

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IAVCEI - International Association of Volcanology and Chemistry @iavcei.bsky.social · 09/01/2025

🚨REMINDER: Only 1 day left to submit your abstract! Remember to submit your abstract before: 📅 January 10, 2025 💻 Submission portal : visit our website on-line-form.eu/iavcei2025sa... 📩 Questions regarded to IAVCEI25 please and an email to: iavcei2025@symporg.ch

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UAlberta Volcanic Ash Research Group @tephrotastic.bsky.social · 08/01/2025

Thanks Kevin! Probably should get better at tooting our own horn, haha. Cryptotephra records can tell us a lot (although they are agonizing to build to a critical mass). Shout out to Ali Monteath and co-authors for persevering through years of terrible tiny tephra shards.

media.tenor.com

the tin man from the wizard of oz is blowing smoke out of his mouth while standing on a dirt road .

ALT: the tin man from the wizard of oz is blowing smoke out of his mouth while standing on a dirt road .

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UAlberta Volcanic Ash Research Group @tephrotastic.bsky.social · 07/01/2025

From the Dept of Earth and Atmospheric Sciences at the University of Alberta alumni Jessie Reimink and his former supervisor Tom Chacko, nicely posing with the Acasta. Yay!

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UAlberta Volcanic Ash Research Group @tephrotastic.bsky.social · 07/01/2025

As a lab account we avoid politics. But we are Canadian and plan on staying that way. @nytimes.com Your headline is pathetic. First, Greenland NEVER belonged to the US. Use your words better! Second, we are sovereign nations and allies. This isn’t “acquiring”. Don’t hide behind placating language.

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UAlberta Volcanic Ash Research Group @tephrotastic.bsky.social · 06/01/2025

Great instructors and a STUNNING location. Hard to beat!

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Yukon Beringia Interpretive Centre @yukonberingia.bsky.social · 06/01/2025

New research alert 🌟 "Predation, reoccupation, cannibalism, and scavenging? Records of small mammals in arctic ground squirrel middens from east Beringia" examines fossilized arctic ground squirrel middens from sites across the Klondike goldfields. www.tandfonline.com/doi/full/10....

tandfonline.com

Predation, reoccupation, cannibalism, and scavenging? Records of small mammals in arctic ground squirrel middens from east Beringia

Faunal remains from fossil arctic ground squirrel (Urocitellus parryii) middens provide insight into the composition of small mammal communities during the late Pleistocene of Yukon Territory. We e...

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