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Valentin Zuchuat

@stratival.bsky.social
587 followers 824 following 25 posts

Sedimentologists focusing on shallow-marine to continental transition zones and hyperthermal events, co-founder of @sedimentologika; ski-bum, food and wine enthousiast, special kink for the Permian-Triassic transition. He/him

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Reposted by Valentin Zuchuat
Robbi Bishop-Taylor 🛰️🌏 @satellitesci.bsky.social · 21/05/2026
Early this month, #CopernicusEU's #ImageOfTheDay shared two spectacular #Sentinel2 images of tidal dynamics at France's Passage du Gois: an island causeway completely flooded by the tide every day. Here's some quick outputs from our #DEAIntertidal coastal elevation workflow over the same area!
Data output showing coastal elevation from blue (deep) to yellow (shallow)Satellite images showing low and high tideData output showing coastal elevation from blue (deep) to yellow (shallow)Data output showing coastal elevation from blue (deep) to yellow (shallow)
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Valentin Zuchuat @stratival.bsky.social · 09/04/2026
Volcanoes, Svalbard, and Greenland walk into a bar in the Early Triassic: doi.org/10.57035/jou... Publishing this article in @sedimentologika.bsky.social was the best author's experience so far! Diamond Open Access for the win!
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Reposted by Valentin Zuchuat
Romain Vaucher @romainvaucher.bsky.social · 05/03/2026
We need to change how we publish science! New article with @camthomas.bsky.social : “Diamond is the new Green: why Green OA is not sustainable long-term.” About 15 min, perfect for a weekend reading with a coffee: @sedimentologika.bsky.social 💎 doi.org/10.57035/jou...
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Sedimentologika @sedimentologika.bsky.social · 04/03/2026
🚨 New Opinion Piece 🚨 Vaucher & Thomas discuss the sustainability and equity of different Open Access publishing paths and promote a shift towards Diamond OA. Read the full publication here: oap.unige.ch/journals/sdk... @romainvaucher.bsky.social, @camthomas.bsky.social
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Reposted by Valentin Zuchuat
Sedimentologika @sedimentologika.bsky.social · 02/02/2026
🔔 Introducing our new journal layout! We invite you to explore it in our website at sedimentologika.org 💻 #sedk #layout #openaccess #journal
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Valentin Zuchuat @stratival.bsky.social · 22/09/2025
🎉New paper with Brian Beaty: After the end-Permian ME, burrowers didn’t just return, they rewired seafloor chemistry. Shallow particle mixing revived C & S cycling (<200 kyr); full P recycling waited on deeper burrowers (>1 Myr). Congratulations Brian! paper: onlinelibrary.wiley.com/doi/10.1111/...
onlinelibrary.wiley.com
Bioturbation Shapes Marine Biogeochemical Cycling Following the End‐Permian Mass Extinction in Northern Pangea
During the end-Permian mass extinction, a global decline in seafloor sediment mixing and burrowing (bioturbation) provides critical evidence for the collapse of marine ecosystems, likely triggered by...
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Valentin Zuchuat @stratival.bsky.social · 20/09/2025
When you see the dramatic impact that a 1° change in the dip of the strata has on fluid flow in porous media, we field geologists might need to rethink our "+-5° is totally fine" when measuring strata dip angle. Thanks Thomas Poulet for the collaboration! doi.org/10.1130/G538...
doi.org
Small dip, big impact: How 1° strata inclination affects density-driven flow in anisotropic rocks | Geology | GeoScienceWorld
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Reposted by Valentin Zuchuat
Sedimentologika @sedimentologika.bsky.social · 16/09/2025
🚨 New Paper 🚨 MacDonald et al. investigate passive CO2 mineralisation in anthropogenic carbonate deposits through isotopic geochemical analysis of different samples collected across Scotland and Northern England. Read the full publication here: oap.unige.ch/journals/sdk...
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Valentin Zuchuat @stratival.bsky.social · 08/09/2025
#AEGC2025 Perth Tomorrow we’re tackling self-organisation & allogenic artifacts in sedimentary basins — how to tell real vs apparent cycles, and what that means for basin reconstruction. I have gifs and memes, hope it helps 😇 ⏰ Tues. 11:20 📍 Sed & Strat session, riverside theatre.
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Valentin Zuchuat @stratival.bsky.social · 23/06/2025
So we can only hope of major volcanic eruptions to stay below+1.5 °C of global warming in the next five years? How do we react to that?
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Reposted by Valentin Zuchuat
Sedimentologika @sedimentologika.bsky.social · 26/05/2025
📣 Meet our new Associate Editors! Emilia Le Pera - University of Calabria, Italy Siliciclastic petrography & provenance analysis @arnaudgallois.bsky.social - Kocaeli University, Turkey Carbonate sedimentology & diagenesis, Microbial carbonates, Non-marine carbonates
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Sedimentologika @sedimentologika.bsky.social · 22/05/2025
📣 Meet our new Associate Editors! Sanem Acikalin - Newcastle University, UK Sandstone diagenesis, organic matter transport, paleoclimate, provenance. Francisco Tognoli - Federal University of Rio de Janeiro, Brazil Digital outcrop models, Machine learning models, Python for Geology, Data analysis
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Reposted by Valentin Zuchuat
Sedimentologika @sedimentologika.bsky.social · 15/05/2025
📣 Meet our new Associate Editors! Nan Wu - Tongji University, China Submarine landslides, Mass-transport complexes, Turbidity currents, Submarine canyons, Sedimentary process Thomas Blaise - University Paris-Saclay, France Mineralogy, Calcite U-Pb geochronology, 3D Geological modelling
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Reposted by Valentin Zuchuat
Sedimentologika @sedimentologika.bsky.social · 12/05/2025
📣 Meet our new Associate Editors! Cecilia Lopez-Gamundi - JPL. Carbonates, forward modelling, remote sensing, sediment transport, coastal processes. Arnoud Slootman - Colorado School of Mines. Bedforms, sediment transport, carbonate slopes, turbidites, carbonate sediment.
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Valentin Zuchuat @stratival.bsky.social · 02/04/2025
Coming to the ISC 2026 in New Zealand? We have two sessions for you: 1. Coastal to shelf environments across time and space 2. Open Science in Sedimentology: missteps, success stories, standards, and solutions Detail here confer.co.nz/isc2026/sess.... Abstract submission deadline 16.05.2025.
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Reposted by Valentin Zuchuat
Zoltán Sylvester @zzsylvester.bsky.social · 08/03/2025
It was great to see today all the courageous and inspiring people (several awesome students among them) who are ready to fight for science, for democracy, for equality #standupforscience #Austin
People are gathering in front of the Texas Capitol in Austin to protest the Trump administration’s attack on scienceOne of the signs says “I ♥️ trans mice! (And trans people too!)
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Valentin Zuchuat @stratival.bsky.social · 26/02/2025
...their text and fig2D say that these gravel-rich (!) inclined strata are formed by tides. Do they suggest a 30 m tidal range? And if they're gravel rich , these tides must have insanely strong! I guess modelling could work, but it would need a few PhDs to develop the equations to model Mars tides
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Valentin Zuchuat @stratival.bsky.social · 26/02/2025
As much as these images are amazing I am skeptical with their tidal interpetation. They cite O'Neil and Dunn 2003 as justification to the geometry they see. O&D showed structures 2-3 m below the surface, whereas Mars' structures go down 30 m below the surface...
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Valentin Zuchuat @stratival.bsky.social · 28/01/2025
@sedimentologika.bsky.social is looking for three new volunteer associate editors as well as a few more helpers for its production team! Go to sedimentologika.org for more info, come and help change our publishing landscape towards a true Free Open Access future!
sedimentologika.org
Sedimentologika
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Reposted by Valentin Zuchuat
Charlotte L. Devitre @cljdevitre.bsky.social · 10/01/2025
Not sure if there is a list out there formally for Earth Sciences, but here are some I know of: Volcanica, Seismica, Sedimentologika, Geodynamica, The Sedimentary Record, Tektonika, Geomorphica, Advances in Geochemistry and Cosmochemistry. You can also try searching the DOAJ website! doaj.org
doaj.org
Directory of Open Access Journals – DOAJ
DOAJ is a unique and extensive index of diverse open access journals from around the world, driven by a growing community, committed to ensuring quality content is freely available online for everyone...
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Sedimentologika @sedimentologika.bsky.social · 22/01/2025
We are advertising volunteering positions for three Associate Editors specialised in 1) Carbonate sedimentology & stratigraphy; 2) Slope to basin-floor processes; 3) Sediment outcrop imaging. Check out the full position details on our website: oap.unige.ch/journals/sdk...
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Sedimentologika @sedimentologika.bsky.social · 22/01/2025
🚨 New Paper 🚨 Okwara et al. discuss the downstream grain-size evolution and spatial facies partitioning of the Middle Jurassic wave-influenced Brent Group deltaic succession through subsurface data analysis. Read the full publication here: oap.unige.ch/journals/sdk...
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Sedimentologika @sedimentologika.bsky.social · 09/01/2025
🌟 Exciting Volunteer Opportunity! 🌟 Curious about joining our Production Team? Check out the full position details on our website: bit.ly/SedkVProdTeam If you're interested, send your application to: contact@sedimentologika.org  We’d love to hear from you! ✉️
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Valentin Zuchuat @stratival.bsky.social · 15/01/2025
I might live under a rock. But #NotebookLM is f***ing incredible! Here is a little podcast on our #DOA paper on the coastal dynamics of the Gulf of Carpentaria we wrote with @satellitesci.bsky.social, Miquel Poyatos, Björn Nyberg, Rachel Nanson, Stephen Sagar, Leo Lymburner! tinyurl.com/3j9fb9sh
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Valentin Zuchuat @stratival.bsky.social · 15/01/2025
If you're like my office mate today and you need a break, check out our #preprint in Climate of the Past on the Phanerozoic climate record of #Svalbard. This manuscript is a beast that Aleks Smyrak-Sikora (NTNU, lead author) managed brilliantly! Well done! egusphere.copernicus.org/preprints/20...
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Valentin Zuchuat @stratival.bsky.social · 09/01/2025
Come and join our @sedimentologika.bsky.social team!🏜️🏞️🏝️
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Valentin Zuchuat @stratival.bsky.social · 08/01/2025
2/2 ..Now I've got them in my Dropbox, but I'm not super confident in sharing such a link on social media. I thought about Pangaea, but they don't take these kind of material. Cheers
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Valentin Zuchuat @stratival.bsky.social · 08/01/2025
1/2 Hei folks, I was wondering if anyone knew a nice platform to upload lectures-slide decks. I have all my RWTH-time courses (intro-mineral BSc, sedimentology BSc in German and English, and basin dynamics MSc in English), and they might as well be useful to some people..
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Valentin Zuchuat @stratival.bsky.social · 06/01/2025
Hei #GeoSky, quick wording-question: Would you rather write 1. The Lower Triassic climate was.. or 2. The Early Triassic climate was..? Using the word stratum instead of climate, then I'd go option 1; with climate, I'm a little hesitating, though. P.s. "During the Early Triassic" isn't an option
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Sedimentologika @sedimentologika.bsky.social · 05/01/2025
The SedK team extends its best wishes for the New Year 2025 to the entire Sedimentology community! 🎆 💎Thank you to all our contributors, readers and supporters!
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Valentin Zuchuat @stratival.bsky.social · 04/01/2025
Hmm, I've always thought these large bands were more related to larger volumes of fluids migrating through the rocks rather than the smaller-scale "stagnant" water-forming Liesegang bands. Awesome photos!
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Reposted by Valentin Zuchuat
Cameron Thrash @jcamthrash.bsky.social · 03/01/2025
Resurrection of a diatom after 7000 years from anoxic Baltic Sea sediment academic.oup.com/ismej/advanc... #jcampubs
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Dr. Or M. Bialik |📚|🔬|🌊|⚒️ @obialik.bsky.social · 20/12/2024
The people at ‪Sedimentologika‬ are working hard to make a sedimentology diamond open access (free to read, free to publish) journal a reality. The least we could do is check it out. ⚒️
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Camille Thomas @camthomas.bsky.social · 20/12/2024
So proud of this cover! great work @romainvaucher.bsky.social and thank you Ryusuke Kimitsuki for this beautiful photo 📷 Read the related paper in this new issue !
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Reposted by Valentin Zuchuat
Sedimentologika @sedimentologika.bsky.social · 19/12/2024
🌍 Sedimentologika Vol. 2 Issue 2 is now complete! You can find out more about our latest Open Access articles here: oap.unige.ch/journals/sdk... Thanks to all the people who contributed to this issue!
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Romain Vaucher @romainvaucher.bsky.social · 26/11/2024
This is the way—the only sustainable and equitable approach to publishing: the Diamond Open Access model 💎, free to read, publish, and share 🔓📖🧪.
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Camille Thomas @camthomas.bsky.social · 21/11/2024
@sedimentologika.bsky.social is now part of the Free Journal Network, and we are super proud of it! 🔥 sedimentologika.org freejournals.org
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Valentin Zuchuat @stratival.bsky.social · 19/11/2024
At first, I was a little bit afraid of permanently deleting my twitter because of all the geo-tweets I'd saved from all over the world over the past years. But I'm so happy to see that Bluesky is finally becoming a safe harbour for scientists like me who suck at the whole linkedin peacock dance 🔥
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Valentin Zuchuat @stratival.bsky.social · 10/11/2024
I'd be very keen to be on that list! 🙂
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Sedimentologika @sedimentologika.bsky.social · 09/11/2024
🚨New Paper🚨 Azzam et al. explore machine learning techniques for automated petrographic analyses and provide 2 novel open source tools (GrainSight and PetroSeg) for grain detection, grain characterization, and porosity calculations. Check out the full article here: oap.unige.ch/journals/sdk...
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Sedimentologika @sedimentologika.bsky.social · 17/10/2024
🎆 🎉 🎉 ❗ We are happy to announce that we are now on DOAJ, the Directory of Open Access Journals AND that we have been awarded the 🎖️ DOAJ Seal 🎖️ for best practice in open access publishing! Check us out and support your Diamond Open Access community journals! @doaj.bsky.social doaj.org/apply/seal/
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Sedimentologika @sedimentologika.bsky.social · 12/07/2024
🚨 New Paper 🚨 May & Milnes examine the lithological and mineralogical characteristics of Plio-Pleistocene sediments, deposited in fluvial and alluvial settings, south of Adelaide. Read the full article here: oap.unige.ch/journals/sdk...
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Sedimentologika @sedimentologika.bsky.social · 12/07/2024
🚨 New Paper 🚨 Fowler & Forte assess the relative contributions of tectonics and climatic forces in the preservation of orogenic systems, and their associated stratigraphy. Read the full article here: oap.unige.ch/journals/sdk...
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Sedimentologika @sedimentologika.bsky.social · 18/06/2024
❗ New Paper ❗ Hilderman et al. examine the lithification of anthropogenic materials into a new sedimentary rock. Read the full article here: oap.unige.ch/journals/sdk... #sedimentology #openaccess
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Valentin Zuchuat @stratival.bsky.social · 31/03/2024
Tschüss Aachen, g'day Perth! Looking forward to starting fresh at CSIRO! So if anyone travels this way in the next three years, come and say hello!
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Valentin Zuchuat @stratival.bsky.social · 01/02/2024
🔥🔥🔥We have a dream line-up of keynote speakers scheduled for the online kickoff event of the SEPM Coast and Shelf Research Group, covering modern coastal systems, experimental modelling, and the rock record! Join us on Tuesday 13th February at 15:30 CET. Registration here: forms.gle/tuZDSCyxHJp4...
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Sedimentologika @sedimentologika.bsky.social · 02/01/2024
✨️ Happy new year ✨️ Best wishes for 2024! Live long and prosper, and let's continue fighting for more freedom, equality and knowledge for all 🦸‍♀️🔓
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Valentin Zuchuat @stratival.bsky.social · 18/12/2023
Huge milestone for Sedimentologika today! Cheers to all the authors, editors, reviewers, and the amazing volunteer copy-editors!
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Romain Vaucher @romainvaucher.bsky.social · 18/12/2023
Thanks to everyone involved!
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