Guillaume Duclaux's Avatar

Guillaume Duclaux

@gduclaux.bsky.social

Rock whisperer ⚒️ - Love deformed old rocks and modern rift systems | field work, teaching tectonics & numerical modelling | rupicolous, yet calcifuge | he/his 🇫🇷 🇦🇺 & 🇦🇶 Associate Professor at Université Côte d’Azur (Nice, France)

140 Followers  |  96 Following  |  14 Posts  |  Joined: 19.10.2023  |  1.8617

Latest posts by gduclaux.bsky.social on Bluesky

Portail Emploi CNRS - Offre d'emploi - PhD Thesis: Multi-scale seismic characterization of active rockslides: from internal deformation to mass movement dynamics (M/F)

Measuring rock slides is cool, but modelling rock slides is cool too. So why not do both? Come join us at the beautiful Côte d'Azur! We have a fully-funded PhD opportunity available in the framework of the ERC UNREST project. Application window is open until 25 August: emploi.cnrs.fr/Offres/Docto...

06.08.2025 14:51 — 👍 5    🔁 2    💬 1    📌 1

Vous l'avez fait pour la loi Duplomb ?

Vous pouvez le faire pour taxer les plus riches !

-Pour une taxe Zucman
-Pour une taxe sur les super-profits
-Pour une taxe sur les gros patrimoines
-Pour lutter contre la fraude fiscale

À signer et partager !
petitions.assemblee-nationale.fr/initiatives/...

20.07.2025 14:09 — 👍 1409    🔁 1360    💬 76    📌 141

Et hop

20.07.2025 19:28 — 👍 28    🔁 6    💬 3    📌 0
Preview
Scientists discover long-lost giant rivers that flowed across Antarctica up to 80 million years ago Large flat surfaces carved by ancient rivers deep beneath the East Antarctica are influencing how ice flows across the continent today, according to a new study.

www.livescience.com/planet-earth...

16.07.2025 17:14 — 👍 8    🔁 3    💬 0    📌 0

If it comes from the Alps this could be a piece of the Permo-Triassic Verrucano conglomerate (lithotheque.ens-lyon.fr/Lithotheque/...)

31.05.2025 11:13 — 👍 3    🔁 0    💬 1    📌 0
Preview
Science’s ‘Gollum effect’: PhDs bear brunt of territorial behaviour Survey respondents at all career stages report colleagues engaging in territorial and possessive behaviours — but early-career researchers are most often affected.

New study in #Nature reveals the 'Gollum effect': nearly half of surveyed scientists report territorial behaviors—data hoarding, gatekeeping—mostly during #PhD. Early-career researchers bear the brunt; 1 in 5 left academia as a result.
www.nature.com/articles/d41...
🧪

23.05.2025 21:08 — 👍 62    🔁 30    💬 2    📌 18
Preview
Volcanic Eruption in Deep Ocean Ridge Is Witnessed by Scientists for First Time (Gift Article) Researchers diving in a submersible in the eastern Pacific realized that the landscape they had studied the day before had been glassed over by fresh lava.

**BIG NEWS in the geology world!** For the first time, scientists spotted an active eruption along the mid-ocean ridge!!

They visited the hydrothermal vent the day before, where a vibrant ecosystem thrived in the sweltering water. The next day, everything was gone. ⚒️🧪

My latest for @nytimes.com

02.05.2025 17:03 — 👍 213    🔁 80    💬 4    📌 11
A geode with blue crystals

A geode with blue crystals

Close up view on blue crystal faces

Close up view on blue crystal faces

Tuesday could be Strontium Sulfate day! Why not…

Clusters of pale blue celestite crystals from Madagascar ⚒️🧪

29.04.2025 18:32 — 👍 4    🔁 0    💬 0    📌 0

⚒️

29.04.2025 11:26 — 👍 5    🔁 1    💬 0    📌 0
Post image

To brighten your weekend: pink rhodonite crystals (manganese inosilicate) from Madagascar
🤩⚒️

25.04.2025 15:20 — 👍 11    🔁 1    💬 0    📌 0
Waterfalls within columnar volcanic rocks

Waterfalls within columnar volcanic rocks

Peridotite xenoliths in basanite

Peridotite xenoliths in basanite

Who wants to see waterfalls inside an ancient lava lake? Well… who doesn’t?
This is the Ray-Pic waterfall in Ardèche (SE France). Beautiful columnar jointing in a Pleistocene basanite full of mantle xenoliths 🤩⚒️

18.04.2025 13:49 — 👍 33    🔁 4    💬 1    📌 2
Geology students interpreting a panorama

Geology students interpreting a panorama

Panoramic view toward the East from Entrevaux (04) showing the Var valley and surrounding mountains

Panoramic view toward the East from Entrevaux (04) showing the Var valley and surrounding mountains

3D view of the surface geology wrapped over a digital elevation model

3D view of the surface geology wrapped over a digital elevation model

Exploring Nice’s backcountry geology with 2nd year students - near Entreveaux ⛰️⚒️

03.04.2025 13:28 — 👍 4    🔁 0    💬 0    📌 0
Preview
Extrusion experiment with plasticine, IPGP tectonics lab. Famous experiment with plasticine, analog to Asian tectonics and continental extrusion. See Tapponnier et al., 1982, 1986 and Peltzer & Tapponnier 1988

You can find a video of one of Tapponnier’s experiment here: vimeo.com/211638349

28.03.2025 14:40 — 👍 3    🔁 0    💬 1    📌 0
Long exposure picture of rocky outcrops along the Mediterranean

Long exposure picture of rocky outcrops along the Mediterranean

M-folds in kyanite-garnet micaschists / quartzite layers

M-folds in kyanite-garnet micaschists / quartzite layers

Geology strudents mapping folded metamorphic rocks by the sea

Geology strudents mapping folded metamorphic rocks by the sea

Back from a week in the field with MSc students mapping and studying deformation in variscan rocks from the Maures-Tanneron Massif near St Tropez 😍

22.03.2025 16:10 — 👍 23    🔁 2    💬 0    📌 1
Quartz vein boudinage in a compositionally layered migmatitic gneiss

Quartz vein boudinage in a compositionally layered migmatitic gneiss

Quartz vein boudinage

Quartz vein boudinage

What’s not to love with boudins! ⚒️

21.03.2025 16:50 — 👍 4    🔁 0    💬 1    📌 0
Post image

Bedmap3 is now out
rdcu.be/ecTmO

10.03.2025 14:42 — 👍 200    🔁 76    💬 7    📌 14
We need to have a conversation about wombats - The Oatmeal This comic is about a lot of things, but mostly it is about butts.

Wombats are awesome and if you’d like to know more about them check this out: theoatmeal.com/comics/wombats

01.02.2025 20:27 — 👍 1    🔁 0    💬 0    📌 0
Wombat (Vombatus ursinus) grazing

Wombat (Vombatus ursinus) grazing

A wisdom of wombats (Vombatus ursinus) - mother and cub grazing

A wisdom of wombats (Vombatus ursinus) - mother and cub grazing

Echidna (Tachyglossus aculeatus) walking in the grass with Mount Maria in the background

Echidna (Tachyglossus aculeatus) walking in the grass with Mount Maria in the background

Cardboard animals in a souvenir shop

Cardboard animals in a souvenir shop

And of course Aussie wildlife was there 🐾

01.02.2025 20:12 — 👍 1    🔁 0    💬 1    📌 0
Waterfalls with fern trees in luxurious forest

Waterfalls with fern trees in luxurious forest

High waterfall in luxurious forest

High waterfall in luxurious forest

Gum tree in front of a lake in alpine Tasmanian landscape

Gum tree in front of a lake in alpine Tasmanian landscape

Sandstone cliffs by the sea with mountain peak in the background

Sandstone cliffs by the sea with mountain peak in the background

How beautiful is Tassie?! 🇦🇺
Back from Antarctica I took a couple days off to explore parts of southern Tasmania with some mates (in Mount Field NP & Maria Island NP). The luxurious forests with fern trees and waterfalls felt like a trip to Carboniferous times.

01.02.2025 20:01 — 👍 3    🔁 0    💬 0    📌 0
Adelie penguins’ rookerie with sea ice and a glacier in the background

Adelie penguins’ rookerie with sea ice and a glacier in the background

Geologist sampling rocks with snow and penguins in the background

Geologist sampling rocks with snow and penguins in the background

Rocky islands with icebergs and clouds

Rocky islands with icebergs and clouds

Looking back to some fieldwork memories earlier this year…

31.01.2025 21:46 — 👍 8    🔁 0    💬 0    📌 0
Video thumbnail

Happy new year 2025 from Dumont D’Urville station in Adélie Land, East Antarctica… not the best weather for geology though

31.12.2024 15:50 — 👍 8    🔁 2    💬 0    📌 1
Red rhyolites of the Esterel massif viewed from the sea

Red rhyolites of the Esterel massif viewed from the sea

Paddlers on tauati va’a in the foreground, the red volcanic rocks of the Esterel massif, and the snowy summits of the Mercantour massif in the back

Paddlers on tauati va’a in the foreground, the red volcanic rocks of the Esterel massif, and the snowy summits of the Mercantour massif in the back

One of the many pros of the French Riviera are the landscape and geology diversity… and canoeing on the Mediterranean on a sunny winter morning with a view on the snowy Alps

27.01.2024 18:13 — 👍 21    🔁 2    💬 0    📌 0

@gduclaux is following 20 prominent accounts