#Tephrochronology
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cot-iavcei.bsky.social
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
Session SSP2.7
meetingorganizer.copernicus.org
December 22, 2025 at 4:52 PM
oxfordtephra.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
October 16, 2025 at 8:26 AM
oxfordtephra.bsky.social
Hello, and happy 2025! 🎉 The Oxford Tephrochronology Group have joined Bluesky 👋 Looking forward to an exciting year of #tephratastic research 🔬 🌋🥼👩🏻‍🔬👨🏻‍🔬
January 9, 2025 at 9:37 AM
tephrabird.bsky.social
My first social media account ever (except my lab account @tephrotastic.bsky.social). My science is tephrochronology, volcanoes, stratigraphy & climate. I am an amateur potter, advanced procrastinator, middling, but enthusiastic, birder. Growing a garden for bumblebees, can't wait for my next hike.
North face of Mount St. Helens from a helicopter, what a beast! Bumble bee inspecting a feral rudbeckia in the garden Cross-country skiing right in Edmonton at Mayfair. Hiking in the Sierra Nevada backcountry
January 20, 2025 at 11:57 PM
cot-iavcei.bsky.social
🔁📢 Call for papers - JQS Special Issue on distal tephra analysis
Sponsored by IAVCEI Commission on Tephrochronology (COT)
🗓Deadline: 2 Jan 2026
September 1, 2025 at 4:28 PM
cot-iavcei.bsky.social
🌋 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
November 20, 2025 at 3:45 AM
tephrabird.bsky.social
Because I definitely do 🫠
...and two more #EGU2026:

GMPV11.1: Tephra processes and dispersal: from tephrochronology to hazard assessment applications in volcanology

ESSI3.6: From Principles to Practice: Multidisciplinary Approaches to Data-Driven Tephra Research @tephraportal.bsky.social
cot-iavcei.bsky.social Commission on Tephrochronology @cot-iavcei.bsky.social · Dec 22
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
Session SSP2.7
meetingorganizer.copernicus.org
December 22, 2025 at 5:00 PM
tephrabird.bsky.social
The VARG lab @tephrotastic.bsky.social wants to show off the first first author publication of former MSc (now PhD!) Shaun Woudstra. Pioneering work in a challenging remote region. Looking forward to getting back there this summer to figure out where these tephra are coming from. #tephra🧪🌋
Holocene tephrochronology in the Northern Cordilleran Volcanic Province, northwestern British Columbia
The Northern Cordilleran Volcanic Province (NCVP) of northwestern British Columbia and southwest Yukon is the most active volcanic region in Canada, including both the most recent eruption in Canada a...
cdnsciencepub.com
February 4, 2026 at 1:05 AM
chslane.bsky.social
📣 Studying tephra in archaeology?
Then submit an abstract to our #tephratastic session at the European Association for Archaeologists #EAAs in Athens this summer. 🌋🏛️ Session #203 “Advances in Tephrochronology for Archaeological Research”.
👉5th Feb deadline👈
More info: bit.ly/3LCcuyy
Session abstract: Tephrochronology is one of the most effective tools for building precise and independent chronological frameworks that link archaeological, palaeoenvironmental, and geological archives. By relating tephra layers to eruptive events, it establishes isochrons – time-synchronous surfaces that enable stratigraphic sequences to be correlated across regions with exceptional precision. In recent years, the study of cryptotephra – fine-grained (<125 μm) volcanic glass shards preserved in sediments far from their source – has profoundly expanded the potential of this approach. The identification and geochemical fingerprinting of these invisible ash layers now allow long-distance correlations, extending the applicability of tephrochronology to regions and contexts once considered beyond its reach. This session focuses on how the integration of tephra studies into archaeological research is transforming our ability to correlate, date, and interpret the complex relationships between human activity, archaeological cultures, landscape evolution, and volcanic events across space and time. By bringing together examples from different regions and periods—from prehistoric to historical contexts—the session will highlight the diversity of applications and the growing analytical precision that characterise this rapidly evolving field. We welcome contributions demonstrating how both visible tephra and cryptotephra layers have been used to refine archaeological chronologies, synchronise cultural and environmental sequences, or strengthen the chronological control of multiproxy datasets. Methodological and case-study papers are equally encouraged, especially those integrating tephrochronology with geoarchaeological and palaeoenvironmental methods such as micromorphology, sedimentology, and palaeoecological analyses. Research from regions traditionally considered “tephra-poor”, where cryptotephra discoveries are revealing new temporal anchors, is particularly welcome.
January 12, 2026 at 8:25 PM
giuliafis.bsky.social
New here! Kicking things off with some insights from my PhD research in Antarctic volcanoes. Science, adventure and a lot of volcanic history frozen in time, just waiting to tell their story 🌋❄️ Looking forward to connecting and learning!
#tephra #tephrochronology #antarctica #volcanology #melbourne
January 29, 2025 at 9:28 AM
cot-iavcei.bsky.social
EAA 2026 (Athens) - Call for contributions is now open for the session "Advances in Tephrochronology for Archaeological Research" 🌋🔬🙂🔬🌋
Deadline: 5 Feb.
#tephra #archaeology #EAA2026
oxfordtephra.bsky.social Oxford Tephrochronology Group @oxfordtephra.bsky.social · Jan 12
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.
January 16, 2026 at 3:41 PM
chslane.bsky.social
Ciao Etna, I see you behind those clouds!
Arrived in beautiful Catania for the Commission on Tephrochronology conference. I have sample bags and an espresso, what else could I need? 🌋⚒️☕️👌
September 8, 2024 at 2:18 PM
garym6942.bsky.social
Ancient DNA reveals Ice Age mammals thrived after volcanic eruption - Researchers at the U of Alberta contributed expertise in permafrost science, radiocarbon dating & tephrochronology. news.ucsc.edu/2026/02/volc... #AbSci #UAlberta #genomics #environment #science #SciChat
Ancient DNA reveals Ice Age mammals thrived after volcanic eruption
A UC Santa Cruz lab specializing in ancient DNA reveals a story about large mammal's ability to survive a large-scale natural disaster.
news.ucsc.edu
February 26, 2026 at 3:35 PM
tephrabird.bsky.social
Supported by the Commission on Tephrochronology!

(We really need to start a Bluesky account to, will do soon!)

#IAVCEI 🌋
February 13, 2025 at 6:42 PM
virtual-ialipa2025.bsky.social
This ECRs gave us some interesting presentations about tephrochronology, palaeomagnetism and multiproxy reconstruction!!!✨👏🏻

We appreciate your hard work🥳
June 16, 2025 at 4:32 PM
davidharning.bsky.social
New paper on Iceland! Over the last 20+ years, we've analyzed a bunch of high-resolution datasets from a small lake first studied in the early 90s. If you're interested in Holocene climate, tephra, algal pigments, and Norse settlement, this one might be for you: cp.copernicus.org/articles/21/...
High-resolution Holocene record based on detailed tephrochronology from Torfdalsvatn, north Iceland, reveals natural and anthropogenic impacts on terrestrial and aquatic environments
Abstract. Open questions remain around the Holocene variability of climate in Iceland, including the relative impacts of natural and anthropogenic factors on Late Holocene vegetation change and soil e...
cp.copernicus.org
April 11, 2025 at 2:42 PM
johnnythin.bsky.social
No, the limit of detection for radiocarbon is only about 55 ka. Here's a brief explanation of amino acid racemisation: historicengland.org.uk/images-books...
Scientific Dating of Pleistocene Sites: Scientific Dating Methods | Historic England
Radiocarbon dating; Uranium-Thorium dating; Luminescence dating; Amino Acid Racemisation; Palaeomagnetism; Tephrochronology; The 'Vole Clock'.
historicengland.org.uk
July 1, 2025 at 8:30 AM
paleowin.bsky.social
Tomorrow (Tuesday the 11th) at 6pm PST will be the next geology speaker series! We have a SWOCC YouTube channel that will be live-streaming the talk! Geoarchaeology, paleontology, and even some tephrochronology! 🐪🦴🪨
Poster for a talk. Title: The case for humans hunting ice age animals in eastern Oregon 18,000 years ago. By Dr. Pat O’Grady. Picture of Pat as a happy field archaeologist in the bottom of a hole.
February 11, 2025 at 7:08 AM
unioxarchaeology.bsky.social
Gaze upon this picture & let's have a quick cry because we forgot to do a postgraduate degree in archaeological science with a specialism in tephrochronology so we could work in places like this too. Well done @oxfordtephra.bsky.social & @danielmaclean.bsky.social 👏👏👏
A lush tropical forest surrounds a bright blue lake in caldera. Green leaves, pink flowers and fluffy white clouds against a bright blue sunny sky.
September 23, 2026 at 10:41 AM
cot-iavcei.bsky.social
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.
February 6, 2026 at 8:51 PM
tephraportal.bsky.social
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
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...
jobs.concord.edu
February 13, 2025 at 4:50 PM
qeguom.bsky.social
Denise Becker continues the tephrochronology theme, this time in NW Europe and some ultra-distal sites for Icelandic tephra
January 5, 2024 at 12:31 PM
chslane.bsky.social
COT24 - Commission on Tephrochronology Catania 2024 is underway. Beautiful setting, great science, ash samples and ice cream. #tephratastic
Looking up to the dome of a monastery from a courtyard/atrium. Britta Jensen introducing the meeting on a stage in a lecture theatre. A 35mm film canister containing ash from the most recent eruption of Etna. Croissant and ice cream on a table
September 9, 2024 at 9:45 AM
oxfordtephra.bsky.social
🌋 Check out our new paper!!

We demonstrate how IntChron can support the management, visualisation and analysis of increasingly large #tephra geochemical datasets, bringing together >7,000 analyses from 12 publications.

doi.org/10.1002/jqs....
Managing and visualising geochemical data for tephra correlation with the <i>IntChron</i> Integration Tool
There is now a wealth of glass-shard geochemical data for volcanic ash (tephra) layers from a wide range of volcanoes and eruptions, providing invaluable datasets for tephrochronology. However, compi...
doi.org
September 7, 2026 at 11:06 AM
cot-iavcei.bsky.social
EGU is coming up fast and there is a lot going on!

This includes two sessions on Monday and Tuesday, a social on Tuesday night, our townhall on Wed in Room N1 (7-8pm), and workshop on Thursday.

Check out the attachment for details
#EGU2026

@egu.eu @iavcei.bsky.social @oxfordtephra.bsky.social
This is a flyer describing events tied to the Commission on Tephrochronology at the European Geophysical Union meeting that kicks of Monday May 4th There are two tephra-related sessions called “Hazards related to explosive volcanism: tephra dispersal and pyroclastic density currents” Posters are on Tuesday 5th May, 08:30–10:15 in Hall X2 and Oral session on Tuesday 5th May, 16:15–18:00 Room 2.21. With invited speaker Mathieu Colombier of Munich University And “Tephra research beyond boundaries: integrative applications and data-driven innovation in Earth system sciences” With Posters on Monday 4th May 08:30-10:15 in Hall X3; and Oral session on Tuesday 5th May 08:30-10:15 in Room 2.93. With invited speakers Matthew Loewen of the Alaska Volcano Observatory and Victoria Smith of the University of Oxford. Other related meetings and workshops include The Commission on Tephrochronology Community Meeting on Wednesday 6th May, from 19:00-20:00 in Room N1. Join for updates and announcements, including the next venue of Tephra 2028 and other exciting events. There is also the Tephra Information Portal Townhall on Thursday 7th May from 19:00-20:00 in Room M1. Find out what TIP is and how it is helping provide researchers with a central hub for discovering, accessing and sharing data. There will be a StraboField Tephra workship. This is a free field app to collect tephra stratigraphic data: Runs on Tuesday May 5th from 16:15-18:00 and 19:00-20:00 in Room 2.42. RSVP appreciated but not required at https://forms.gle/PYbxoGLWV7b53WCg9 Finally COT is trying to organize a social after the COT Townhall on Wednesday May 6th after 8 pm. Details will follow the minute we know them! Please RSVP ASAP for planning at https://forms.gle/zyhRJuXGEqps2ySW6
May 1, 2026 at 7:50 AM