Oxford Tephrochronology Group

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

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

Tephra group members @elowilkinsonrowe.bsky.social and @danmclean.bsky.social are analysing some beautiful volcanic ash shards #tephra this week at Royal Holloway University. 🌋

#tephratastic

Greetings from Tenerife! And yes, it is as hot as it looks.

Check out our postcard from the field:
preview.shorthand.com/4lwIX8v1duOO...

More about the CAVES Project here:
caves.web.ox.ac.uk

@unioxarchaeology.bsky.social @volcrocks.bsky.social @danmclean.bsky.social @emmalouisehorn.bsky.social

Greetings from Tenerife! And yes, it is as hot as it looks.

Check out our postcard from the field:
preview.shorthand.com/4lwIX8v1duOO...

More about the CAVES Project here:
caves.web.ox.ac.uk

@unioxarchaeology.bsky.social @volcrocks.bsky.social @danmclean.bsky.social @emmalouisehorn.bsky.social

Fig. 1 from Wilkinson-Rowe et al. (2026). Regional overview map of the Main Ethiopian Rift focussing on key Late Pleistocene – Holocene active volcanic centres of the central rift and off-axis volcanic fields and fault branches. The YTVL (grey shaded area) depicts the Yerer Tullu-Wellel Volcanotectonic Lineament. Yellow dots indicate lake records at Babogaya, Dendi, Haro Kori, and Wergoba utilised in this study and blue dots indicate other lake records with published tephra horizons. The inset box provides the location for Fig. 2. Digital terrain model for base map from NASA Shuttle Radar Topography Mission (2013), modified in QGIS.

Have you read this fantastic QSR paper by @elowilkinsonrowe.bsky.social et al.(2026)?

Lake sediments from the Main Ethiopian Rift reveal refined eruption histories of Boset & Corbetti volcanoes over the Late Holocene, with improved age & volume constraints.

www.sciencedirect.com/science/arti...

Fig. 8 from McLean et al. (2026). Flux of (a) marine diatom taxa Thalassiosira spp. + Cymatotheca (counts/mm2/year) and (b) percentages of Cryptomeria and Quercus-E pollen, recorded in the Lake Suigetsu (SG06) sedimentary sequence. The red dashed line indicates the position of the Aso-3 distal tephra layer (SG14-6662). The green bar marks the interval of laminated sediments corresponding to Marine Isotope Stage (MIS) 5e. Modified from Francke et al. (2025).

🌋 New paper out in QSR!

McLean et al. (2026) shows that the Aso-3 caldera-forming eruption (SW Japan) marks the termination of MIS 6, providing a key tephrochronological marker for correlating East Asian paleoclimate records.

www.sciencedirect.com/science/arti...

#Tephra #LakeSuigetsu #Aso

Tephra session advertisement for INQUA congress in India, 2027.

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

Don’t forget to get your abstracts in for #EGU … there are some excellent #tephra sessions planned. 🌋🔍🚨

Thanks to #VMSG and the Local Organising Committee for a great start to 2026! We had a great time 🌋

Check out this fantastic #tephratastic session at the EAA Annual Meeting in Athens (26-29 August 2026). 🌋🔍😍

203 – Advances in #Tephrochronology for Archaeological Research

🚨The call for Contributions deadline is 5 February.

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

@camtephra.bsky.social
@oxfordtephra.bsky.social

We’ve had a very productive few days at Royal Holloway University running trace element analyses for the CAVES Project @elowilkinsonrowe.bsky.social and @danmclean.bsky.social 🌋🔍🔬Excited to start plotting the data! 📈 #tephratastic

Some fresh new cryptotephra samples ready to be analysed this week! 🌋 @elowilkinsonrowe.bsky.social @danmclean.bsky.social

Follow the authors who are on Bluesky here...
@pgalbert.bsky.social
@danmclean.bsky.social
@volcrocks.bsky.social
@richardstaff.bsky.social

🚨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

Follow the co-authors & collaborators on Bluesky here: @emmalouisehorn.bsky.social
@danmclean.bsky.social
@volcrocks.bsky.social
@adrianoazovolc.bsky.social

And see more updates on the CAVES Africa Project here: caves.web.ox.ac.uk

🌋 New paper led by Emma Horn & the CAVES Project!

We’ve characterised the glass geochemistry of 15 major Azores eruptions (~100 ka). This dataset provides fingerprints to trace Azores tephra across Europe, Africa & beyond. 🔎

🔗 doi.org/10.1016/j.jv...

#Azores #Tephra #CAVESProject

It was great to join the INTIMATE network meeting in Cluj this week. 🦣❄️🕣 Some fantastic science coming soon!

🔁📢 Call for papers - JQS Special Issue on distal tephra analysis
Sponsored by IAVCEI Commission on Tephrochronology (COT)
🗓Deadline: 2 Jan 2026

Visiting a friend from my @oxfordtephra.bsky.social days and here’s the cup my morning coffee came in! #tephratastic

Journal of Quaternary Science Call for Papers Beyond the Eruption: Advances and applications in distal tephra analysis across the Geosciences <em>Journal of Quaternary Science</em> publishes papers on any field of Quaternary research, advancing understanding of earth's history over the last 2.58 million years.

🌋📢 Calling all #tephra researchers!
Join us in shaping this new JQS Special Issue.

"Beyond the #Eruption – Advances and Applications in Distal Tephra Analysis Across the Geosciences"

Deadline: 2 Jan 2026.

Further details below: onlinelibrary.wiley.com/page/journal...

📣 Our recent paper, led by researchers at INGV, provides detail of the magmatic system that extends below the Campi Flegrei caldera, Naples, Italy. These data provide new insights into magma storage and ascent pathways beneath this restless and active caldera: www.nature.com/articles/s43...

This summer Tom Burman, Rebecca Lawton and Jade Sands joined us through the UNIQ+ Programme. They worked on a variety of interesting tephra projects 🌋🥼🔬

UNIQ+ is a great way to experience research first-hand and recommended for anyone curious about postgraduate study.

www.ox.ac.uk/admissions/g...

🌋 PhD and MSc students in Earth Sciences 🌋 Don't miss the opportunity to participate in the International Summer School on Geohazards in Volcanic Islands, held in Ponta Delgada, Azores from 28 May to 4 June. Please check ivar.uac.pt/summer-course/ Deadline for application is approaching, 30 April.

An AI generated Lego set

An AI generated Lego mini-figure

Love it! I would buy the complete set. 😍
Could we also have some lab group #lego sets? @unioxarchaeology.bsky.social @oxfordtephra.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.

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 🧪🌋⚒️

(L) The end of my UNIQ+ internship @oxfordtephra.bsky.social in 2022, and (R) two weeks ago in the 2nd year of my PhD (and in the chaos of #StormÉowyn), continuing to analyse tephra from Campi Flegrei. An insightful experience for those considering PhD life! 🔬🌋

📣 UGs in archaeology, geography and Earth science 📣 Considering a PhD? Join our lab @oxfordtephra.bsky.social this summer on a 7-week long research internship 🌋. Stipended & with accommodation. Deadline Feb 19th. Application details and eligibility criteria: www.ox.ac.uk/admissions/g...

A great day for us ✨ - introducing the MSc Archaeology Science students to our #tephra -tastic world 💥🔍🌋