@subsolum.bsky.social 🌱 Whole Regolith Pedologist ⛏️ 🌕 Lunar Pedologist 🌑 🌏 Geologist born in Jura Mountains 🏔️ 🇫🇷 working @LIST_Luxembourg 🇱🇺

Esch-sur-Alzette, Luxembourg
Joined November 2017
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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Jérôme Juilleret @subsolum .bsky.social retweeted
A recent revisit to this fossil soil or “paleosol”. The paleosol is the dark brown colour…a preserved soil. The bright yellow colour above the paleosol is so unusual. I’ve not seen this elsewhere. I wonder if the sulphate-rich sea spray is part of the chemistry?
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Jérôme Juilleret @subsolum .bsky.social retweeted
Having a dark horizon is not enough to make it a mollic epipedon. At 0–32 cm, this soil has a moist color of 10YR 2/1, 6.4% organic C, 65.5% base saturation, and fine subangular blocky structure; therefore it is a mollic epipedon.
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Jérôme Juilleret @subsolum .bsky.social retweeted
A high-mountain soil from Colombia 🇨🇴 A Typic Melanocryand developed from volcanic ash over glacial deposits, at 3,960 m a.s.l. in Bugalagrande, Valle del Cauca. It has a melanic epipedon, with a melanic index of 1.6, Munsell color 10YR 2/1, and 12.5% organic carbon.
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Jérôme Juilleret @subsolum .bsky.social retweeted
Wow! Another surface rupture caught on video! This time an oblique thrust from Japan.
熊本地震で断層が現れる瞬間の映像が見つかる。
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Jérôme Juilleret @subsolum .bsky.social retweeted
Beautiful examples of shallow Lithomorphic soils. Rocks are characteristic of weathered Ice Age materials. The B horizon is absent. Rocks are a weathered C horizon with minimal soil formation. @Subsolum Acid Devonian rock vs Calcareous chalkland. Similar but different!
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Jérôme Juilleret @subsolum .bsky.social retweeted
On June 4, 2026, Elsevier released CiteScore 2025, and Pedosphere achieved 13.1, ranking 9/167 in Q1 and the top 6% of soil science journals worldwide, up 1% from last year. We sincerely thank all experts and scholars for their interest in and support of the journal.
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Jérôme Juilleret @subsolum .bsky.social retweeted
May 18, 1920, during a meeting of the German Geographical Society in Leipzig, meteorologist and geophysicist Alfred Wegener presents his theory that continents move over time, providing also a map showing the former position of the continents ...
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Jérôme Juilleret @subsolum .bsky.social retweeted
May 5, 1818, birthday of German philosopher Karl #Marx. His thoughts on #economy & #society may well known, but Marx was actually also interested in #geology & copied some geological drawings, like the basalt cliffs of Staffa, Scotland ⚒️
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#Sauropod dinosaur track at Loulle in the #Jura mountains in France. Note the desiccation cracks!
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Jérôme Juilleret @subsolum .bsky.social retweeted
Soils with relatively low degrees of pedogenic development, derived from mudstone badlands in southwestern Taiwan. Vegetation root growth influences soil development, and soil profiles indicate organic matter inputs in the surface layer.
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📢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.c… #Pedology #Soil #ISRU #Regolith #Moon
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Jérôme Juilleret @subsolum .bsky.social retweeted
ResearchArticle “Soil #Hydrology in a drained tropical peatland in Central Kalimantan, Indonesia: Implications for land management” by Dr. Sarah TREBY and colleagues from RMIT University. 🔗 doi.org/10.1016/j.pedsph.202… #Peatlands #FireRisk #Restoration #Indonesia #SoilMoisture
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Jérôme Juilleret @subsolum .bsky.social retweeted
#LetterToEditor "A study of the taxonomic status of a new tropical artificial island soil" by Prof. Zhian LI, Prof. Hai REN and their colleagues from SCBG, CAS. 🔗 doi.org/10.1016/j.pedsph.202… #SoilClassification #Anthrosols #Technosols #CoralIslands #SouthChinaSea
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Jérôme Juilleret @subsolum .bsky.social retweeted
#AllMineralsConsidered: @HUnalercan (@KTUNEDU) discusses the broad utility of kaolinite, from porcelain to nanomaterials nature.com/articles/s41561-0…
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Jérôme Juilleret @subsolum .bsky.social retweeted
🌍Today is 12th #WorldSoilDay! To celebrate, @PEDOSPHERE prepared Virtual Special Issue on Healthy Soils for Healthy Cities for Celebrating the 12th World Soil Day 🌱🏙️ #WSD2025 #SoilHealth
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Jérôme Juilleret @subsolum .bsky.social retweeted
🌎AFES has won the 2025 King Bhumibol World Soil Day Award for the 2024 campaign “Caring for Soils: Measure, Monitor, Manage” In 2025 WSD events continue with the1st European Soil Festival in May as part of the SOILSCAPE project 🎉Congrats to AFES for 12 years of soil awareness
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Jérôme Juilleret @subsolum .bsky.social retweeted
#ResearchArticle "Functional indicators of #Biocrust in a temperate open-pit sand mine: Implications for early #SoilDevelopment" — by Prof. Skuuala, Dr. Chowaniec, Dr. Styburski and Dr. Milc from Jagiellonian University. 🔗doi.org/10.1016/j.pedsph.202… #Restoration #SandMine
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Jérôme Juilleret @subsolum .bsky.social retweeted
#Review "Sustainable #Phytoremediation technologies for the efficient removal of toxic metals from coal mining contaminated soils with the potential approaches of circular bioeconomy" by Prof. Selvasembian from @SRMUAP. 🔗doi.org/10.1016/j.pedsph.202… #MineRestoration
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