iiinova — where your digital self keeps evolving

Jerome Juilleret @subsolum.bsky.social · 05/09/2026

Exploring the Jaujac lava flow in Ardèche, France! 🌋 Formed 12–45k years ago by a Strombolian volcano, the Lignon River carved through the basalt, revealing spectacular cooling columns and entablature. #Geology #FieldGeology #Basalt #Ardèche

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Jerome Juilleret @subsolum.bsky.social · 04/05/2026

#Sauropod dinosaur track at Loulle in the #Jura mountains in France. Note the desiccation cracks!

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Jerome Juilleret @subsolum.bsky.social · 04/03/2026

📢New paper out: "A classification framework for mapping lunar soils" We propose a structured system to classify lunar soils for ISRU and future Moon missions — tested on the Apollo 15 deep core. 👇 🔗 acsess.onlinelibrary.wiley.com/doi/10.1002/... #Pedology #Soil #ISRU #Regolith #Moon

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Jerome Juilleret @subsolum.bsky.social · 04/06/2025

Weekend field visit to the Tourbières de Prénovel (#Jura, France) – a textbook example of how substrate permeability governs landscape patterns. Impermeable layers retain water, forming peat bogs , while permeable zones drain quickly, favoring dry forested ridges.

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Jerome Juilleret @subsolum.bsky.social · 28/03/2025

📣⚠️ New article on Planetary Pedology ! We examine existing soil taxonomies and 𝗽𝗿𝗼𝗽𝗼𝘀𝗲 𝗮 𝗹𝘂𝗻𝗮𝗿 𝘀𝗼𝗶𝗹 𝗻𝗼𝗺𝗲𝗻𝗰𝗹𝗮𝘁𝘂𝗿𝗲 to support moon #soil mapping. 🚀🌕 📖 read more 👇 doi.org/10.1016/j.pe... #LunarGeology #Astropedology #Moon #ISRU #Regolith #Pedology #Mapping

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Jerome Juilleret @subsolum.bsky.social · 27/02/2025

If you don't have vesicular pores it's not a V. Here is an example, of V horizon from Mongolia. Vesicular pores are clear and numerous.

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Jerome Juilleret @subsolum.bsky.social · 12/02/2025

It's #DarwinDay. He was a father of #soilscience #pedology, by combining his knowledge of #geology and #biology, he published “The Formation of Vegetable Mould Through the Action of Worms.” In this book you can see one of the first #soilhorizon designation A,B,C.

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Jerome Juilleret @subsolum.bsky.social · 17/12/2024

D'autres près de Coisia dans le Jura francais, tu les connais?

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Jerome Juilleret @subsolum.bsky.social · 07/12/2024

Si tu veux te balalader sur la côte burdigalienne, fais moi signe. Je pourrais t'emmener sur ce site dans le Jura francais ou j'ai decouvert un affleurement temoin grâce à des traces fossiles comme des cupules d'oursins et autres facies ichnologiques. link.springer.com/article/10.1...

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Jerome Juilleret @subsolum.bsky.social · 07/12/2024

#Borobudur temple in Java #indonesia last year, the offsets between the stone blocks at the base of the temple could be linked to past #earthquakes ? Dear paleosismologists any thoughs or studies on that? @paleoseismicity.bsky.social #activetectonics #archeosismology ugm.ac.id/en/news/1635...

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Jerome Juilleret @subsolum.bsky.social · 27/11/2024

A picture from #soil aggregates, quite common on 🌍. However those aggregates are not from a terrestrial soil but from a #Moon 🌒soil of the #Apollo12 mission #PlanetaryPedology #AstroPedology

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Jerome Juilleret @subsolum.bsky.social · 25/11/2024

Dinosaurs footprint on fossil beach with dessication craks in the #JuraMountains 🇫🇷 #Jura #Geology #Ichnology

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Jerome Juilleret @subsolum.bsky.social · 23/11/2024

Principal #soil units that compose the #cuesta landscape of the #Luxembourg sandstone.

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Jerome Juilleret @subsolum.bsky.social · 21/11/2024

#ThinsSectionThursday Fecal pellets or droppings of #Oribatid mites (Od) and #Collembola (Cd) observed in a zoOH horizon of a Moder Humus or #Humipedon in Luxembourg. #soilfauna #soil #humus #micromorphology #Thinsection

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Jerome Juilleret @subsolum.bsky.social · 19/11/2024

I found this sketch on my hypothesis of the relationship between flow (discharge) and orientation of the #schistosity of the #Weierbach basin (Luxembourg), I find it quite good #CriticalZone #Hydrology The idea was reshaped and published here sciencedirect.com/science/arti...

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Jerome Juilleret @subsolum.bsky.social · 18/11/2024

We all know Jenny's (1941) equation, however he was not the first. 🤫 Let’s pay tribute to Shaw who came up with his #soil formation formula in 1930 at the 2nd International Congress of Soil Science in Saint Petersburg (Leningrad).

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Jerome Juilleret @subsolum.bsky.social · 16/11/2024

A complex Brunic Umbrisol (Arenic, Aric, Raptic) according to WRB2022 developped in Luxembourg sandstone. Parent material shows high variability due to complex sedimentology, pure sand to sandy limestone. #sand #soil #pedology

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Jerome Juilleret @subsolum.bsky.social · 15/11/2024

The Leighton-Marbut agreement during a field trip in 1923 established the separation between #pedology and #geology. Source: Tandarich et al (1994): The pedo-weathering profile: a paradigm for whole regolith pedology from the glaciated midcontinental United States of America.

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