@comvolcseds
Global group of volcanologists who are interested in all sedimentological aspects of volcanic phenomena. Follow for events, updates and much more! https://cvs.iavceivolcano.org/welcome-to-commission-on-volcanogenic-sediments/
π UPCOMING WEBINAR π
"Hot Volcaniclastic Sediments as Sources of Pyroclastic Density Currents: Observational and Modelling Constraints" by Federico Di Traglia
When: 20 March 2026, 3pm CET
Register here: events.teams.microsoft.com/event/97aa6a...
See you there!
@iavcei.bsky.social @sedimentology.bsky.social
REGISTER FOR OUR UPCOMING WEBINAR π
Sebastian Watt from the University of Birmingham will be giving a talk titled: βLahars and post-eruptive sedimentation impacting the marine environment: examples and opportunities from southern Chileβ
1
Where: Online - Register at (events.teams.microsoft.com/event/bc91f9...)
When: February 27th 2026, 9:00 - 10:00 am GMT
See you there!
REGISTER FOR OUR UPCOMING WEBINAR π
Sebastian Watt from the University of Birmingham will be giving a talk titled: βLahars and post-eruptive sedimentation impacting the marine environment: examples and opportunities from southern Chileβ
1
Upcoming Geoheritage Workshop!
See the flyer for programme and registration details.
Posted on behalf of the workshop organisers.
REGISTER FOR OUR UPCOMING WEBINAR - festive edition! ππ
CVS members Prof. Dr. Leandro DβElia and Dr. Manuel LΓ³pez will be giving a talk titled: "The Miocene volcaniclastic record of North Patagonia: tracing high- to low-magmatic arc states from source to sink"
(1/2)
Where: Online (Register here: events.teams.microsoft.com/event/9ecbea...)
When: December 12th 2025, 1:00 - 2:00 pm GMT
See you there! π
(2/2)
REGISTER FOR OUR UPCOMING WEBINAR - festive edition! ππ
CVS members Prof. Dr. Leandro DβElia and Dr. Manuel LΓ³pez will be giving a talk titled: "The Miocene volcaniclastic record of North Patagonia: tracing high- to low-magmatic arc states from source to sink"
(1/2)
π Get involved β shape IAVCEIβs future.
π POLL 3
Proposal to allow a President to serve multiple terms
A key change to strengthen continuity in leadership β we want your input!
Vote now via the online portal:
π www.iavceivolcano.org/proposal-cha...
#IAVCEI #VOLCANOLOGY
(4/4)
πGet involved β shape IAVCEIβs future.
π‘ POLL 2
Revision of membership fees, salary caps & donations
Weβre reviewing our financial structure to better support all members.
Vote now through the online portal:
π www.iavceivolcano.org/proposal-for...
(3/4)
πGet involved β shape IAVCEIβs future.
π³οΈ POLL 1
Amendment to Β§7 of IAVCEI Statutes & By-Laws
Review the proposed updates and cast your vote via the online portal:
π www.iavceivolcano.org/amendment-to...
#IAVCEI #Volcanology
(2/4)
π IAVCEI Members β Your voice matters!
Voting is now open on proposed amendments to our Statutes & By-Laws (SBL).
Cast your vote via the online portal and help shape the future of our community.
π₯ Voting before: 31 October 2025, Midnight (CET)
See the polls below:
(1/4)
Reminder to register for this talk! π
@iavcei.bsky.social @sedimentology.bsky.social
Join us for our next webinar! π
βFrom sink to volcanic source: Unravelling eruption records from wet volcaniclastic deposits in fluvial and lacustrine successionsβ by Prof. Kyoto Kataoka
20th October 2025, 10:30am (CEST/ UTC +2)
Joining link: events.teams.microsoft.com/event/4fe506...
@sedimentology.bsky.social
Our webinars are back! π
Join us on the 19th September 2025 at 2pm where Duje SmirΔiΔ will give their talk on the βMiddle Triassic volcanic activity and related products in the External Dinaridesβ
Join here: events.teams.microsoft.com/event/9d01a0...
Our webinars are back! π
Join us on the 19th September 2025 at 2pm where Duje SmirΔiΔ will give their talk on the βMiddle Triassic volcanic activity and related products in the External Dinaridesβ
Join here: events.teams.microsoft.com/event/9d01a0...
IAVCEI 2025! π
Join us in person and online at the IAVCEI Scientific Conference.
Session 3.5 Volcanic sedimentology and geomorphology: Understanding surface and subsurface processes in driving volcanic landscape evolution and hazards
Room 280, Tuesday, Plus 32 posters from 16.30-18.30
Thank you to everyone who attended the workshop and a big thanks to the amazing organising committee πππΊ
Then we explored more ignimbrites! We were introduced to the Wind and Eger deposits. We ended our day in sunshine at TihamΓ©r quarry looking at debris flow, lahar and volcanogenic sedimentary deposits.
Day Five (the final day!): On our final day we visited EgerszalΓ³k caves where we learnt and discussed about geo-cultural heritage. This gave us an insight into how ignimbrite material allowed people to move into caves as homes.
Then we saw evidence of dilute currents with low angle cross bedding and acc laps - with a castle on top! Finally, some incredible manganese nodules inside the ignimbrite π
Day Four: Today we explored the DemjΓ©n ignimbrite from east to west. First we saw it outcropped in a quarry with some fantastic elutriation pipes
Big boulders β¬οΈ
After this we went to IpolytarnΓ³c and saw some primary PDCs and some old fossil footprints. Thank you to our amazing and enthusiastic guide!
Finally today we went to Tar, where we observed andesitic volcaniclastics and a debris avalanche with some big boulders!
π
Day 3: We started off the morning with a bonus stop to look at some lovely submarine deposited accretionary lapilli. Check out the beautiful cored acclaps with a pumice centre π
A geologist holding up their phone to show the group of geologists a reconstruction palaeoenvironment video
Finally we rounded up our day in the βGrand Canyonβ where we looked at a beautiful braided river sequence of volcanogenic conglomerates and sandstones!
A group of geologists standing in front of a large (~20 x 12 m) outcrop. The outcrop is beige and grey. On closer inspection the lower ~4 m consists of interbedded layers of lapilli and tuff. These layers are interpreted as maar scoria layers. Above this are two distinct massive units that contain large sandstone clasts with evidence of imbrication.
Three geologists standing in front of a large (~20 x 12 m) outcrop. The outcrop is beige and grey. On closer inspection the lower ~4 m consists of interbedded layers of lapilli and tuff. These layers are interpreted as maar scoria layers. Above this are two distinct massive units that contain large sandstone clasts with evidence of imbrication.
Dark grey tuff ring deposits which can be seen dipping to the left and right of the image. On the top of this unit there is a castle
A baked sandstone bomb in a tuff ring deposit. Note the baked margins (jointed ring around the centre of the clast)
Day 2: Today we travelled north into Slovakia πΈπ° where we observed a basaltic diatreme section and had lots of discussions surrounding maar formation and infill
Then we explored a tuff ring with a castle on top! Look at those baked clasts ππ
Day One: Today on our field trip we visited SΓ‘msonhΓ‘za and saw this amazing outcrop! We looked at the contact between andesitic sills, volcaniclastics, and peperite π
Lots of good rock chats and some great local food! Bring on day 2!