Guillaume Duclaux
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gduclaux.bsky.social
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)
Majestic lenticular clouds over the Patagonian Andes (near Aguilera Glacier)
August 31, 2025 at 7:00 AM
Torres del Paine is another geological wonder of this region! Although the weather was a bit harsh, I was just amazed to see the granitic laccolith with my own eyes. Kudos: herds of guanacos and a puma
August 26, 2025 at 12:23 PM
Following #ISAES2025 I have embarked from Puerto Natales to discover the Serrano and Balmaceda glaciers with a fantastic group of Antarctic geologists. The glacial landscape and the geology in the Magallanes region of Chile 🇨🇱 are breathtaking 🤩🏔️🧊❄️
August 26, 2025 at 2:43 AM
Yesterday I was among the lucky few who enjoyed a guided tour of the new Chilean ice breaker “Almirante Viel” and the onboard scientific facilities #ISAES2025 in Punta Arenas 🇨🇱
August 18, 2025 at 10:33 PM
Tuesday could be Strontium Sulfate day! Why not…

Clusters of pale blue celestite crystals from Madagascar ⚒️🧪
April 29, 2025 at 6:32 PM
To brighten your weekend: pink rhodonite crystals (manganese inosilicate) from Madagascar
🤩⚒️
April 25, 2025 at 3:21 PM
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 🤩⚒️
April 18, 2025 at 1:49 PM
Exploring Nice’s backcountry geology with 2nd year students - near Entreveaux ⛰️⚒️
April 3, 2025 at 1:28 PM
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 😍
March 22, 2025 at 4:11 PM
What’s not to love with boudins! ⚒️
March 21, 2025 at 4:51 PM
And of course Aussie wildlife was there 🐾
February 1, 2025 at 8:13 PM
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.
February 1, 2025 at 8:01 PM
Looking back to some fieldwork memories earlier this year…
January 31, 2025 at 9:46 PM
Happy new year 2025 from Dumont D’Urville station in Adélie Land, East Antarctica… not the best weather for geology though
December 31, 2024 at 3:50 PM
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
January 27, 2024 at 6:13 PM