Still time to apply:
04.10.2025 15:36 β π 4 π 4 π¬ 0 π 0@chalkyoceans.bsky.social
Dr Chalk, destined to be a researcher in carbonates, CO2, & ocean-climate links, resident isotope geochemist @exoceanlab.bsky.social, @cerege.bsky.social, France. Equalist, technologist, environmentalist. #climatevegan. π¬π§π€π²π«. π³οΈβπ but always with the π³οΈββ§οΈ.
Still time to apply:
04.10.2025 15:36 β π 4 π 4 π¬ 0 π 0The lab keeps evolving and we are THRILLED! More equipment is about to arrive, some more is planned, and we feel super excited about our different projects. Also reallyβ¦ what a view when the doors are open, one can even see the emblematic « sainte victoireΒ Β» behind the trees!
02.10.2025 09:55 β π 11 π 3 π¬ 2 π 2@chalkyoceans and Maxime on a boat fishing forams.
He doesn't just do the lab either, he's happy to brave the waves and come help us sample in the field. Go Maxime! (Here in the middle of the Atlantic, May 25)
02.10.2025 10:25 β π 6 π 0 π¬ 0 π 0Slowly but surely the lab we had in our heads with @sulpis.bsky.social and @chalkyoceans.bsky.social is coming to life. High pressure incubators are about to come, more microscopy equipmentsβ¦ Such a nice adventure has started!
02.10.2025 10:01 β π 7 π 1 π¬ 0 π 0#Lecturer position in #EarthSciences ππΌ@openuniversity.bsky.social
Please apply, if interested ππΌ
Closing Date: 20 October 2025
Contract Type: #Permanent
Fixed Term Contract/End Date: Not Applicable
jobs.open.ac.uk/job/Lecturer...
Come work in our lab! All the usual awesome things apply about doing exciting science, plus this one might save the world! @sulpis.bsky.social hiring a 2 year position to observe and model deep ocean processes using high-pressure reactors.
*Goes to gather a bunch of forams to be dissolved* π
Sediments dissolving on the seafloor can act as a long term sink for carbon dioxide emissions. We're bringing it to the lab, deep sea research from the comfort of Southern France!
Postdoctoral position for 2 years available working with @sulpis.bsky.social in the @exoceanlab.bsky.social.
Nice comparison of foram-coating derived and sediment derived #Ndisotopes in the Mediterranean from Kazuyo Tachikawa and others @climatecerege.bsky.social and @cerege.bsky.social. Small cautionary tale for unrestricted use (of sediment), but normally it works!
www.sciencedirect.com/science/arti...
ππΌ
04.09.2025 06:21 β π 4 π 0 π¬ 0 π 0Watch this space for so much new exciting science from the new influx of Ceregiens. @cerege.bsky.social
04.09.2025 05:03 β π 9 π 1 π¬ 0 π 0Day 4, #ICP15, next up @antacl.bsky.social talking about long term evolution of South Asian Summer Monsoon.
Congratulations to @antacl.bsky.social for starting her new position soon π₯³
@climatecerege.bsky.social @cerege.bsky.social
Anta delivering her #ICP15 talk in Bengaluru.
Future (and past) @climatecerege.bsky.social superstar @antacl.bsky.social giving her #ICP15 talk now. Modelling the Indian monsoon in the Miocene, and some important praise to the organisers for their diverse programme of speakers. Bravo!
04.09.2025 04:40 β π 24 π 8 π¬ 0 π 0@tdegaridel.bsky.social and @soniachaabane.bsky.social too. Miso is getting a lot of attention! #nomoreforampicking.
02.09.2025 17:17 β π 2 π 0 π¬ 1 π 0A photograph inside the JD Tata Auditorium in Bengaluru on the Indian Institute of Science campusβthe photograph shows a large number of people seateed in the auditorium with Dr. Thomas Chalk (CEREGE) on stage showcasing a slide on COβ reconstructions.
This week, I am grateful to be at the International Conference on Paleoceanography #ICP15. Great start this morning with a tour of #Boron isotopes & #Cenozoic COβ reconstructions from @eleniwater.bsky.social & @chalkyoceans.bsky.social. Nice to see all the paleoceanographers in #Bengaluru!
01.09.2025 05:03 β π 22 π 4 π¬ 0 π 0Thank you so much for the invitation #ICP15. Diversity makes us stronger, and the data shows it! β©π³οΈβπ
02.09.2025 17:11 β π 14 π 2 π¬ 0 π 0Next up @chalkyoceans.bsky.social improving Neogene CO2 reconstructions - proxies, calibrations, morphotypes and much more.. ππΌ
01.09.2025 04:11 β π 8 π 1 π¬ 0 π 1A new paper from our team, and the opportunity to introduce Jaime Suarez @jysuarezibarra.bsky.social , postdoc in our micropaleontology group!
30.07.2025 15:47 β π 8 π 2 π¬ 0 π 0β¨ Honored to witness the inauguration of the BISSAP lab at UCAD β a new lab for ecosystem monitoring in Senegal! ππ¬
Huge congratulations to everyone involved!
@climatecerege.bsky.social @ird-fr.bsky.social
#ScienceForAll #UCAD #IRD #Biodiversity #Africa #BISSAP
www.ird.fr/inauguration...
π¨New paper alertπ¨
Using the mean and 95th percentile of cross-sectional area measurements, we documented ecological and taphonomic imprints on the test size variation of planktonic foraminifera.
@soniachaabane.bsky.social @chalkyoceans.bsky.social @tdegaridel.bsky.social
doi.org/10.61551/gsj...
Open position for PhD student / Postdoc in biogeochemistry For a fully funded four-year project exploring environmental and ecological dynamics in the Mediterranean and Red Sea, we seek a top tier PhD student or postdoc. The project aims to understand the formation and persistence of biodiversity hotspots, especially in light of global climate change and local stressors. The ultimate goal is to gather insights across different organizational levels, from molecular, organismal, and community to habitat structure and biogeochemical pathways, in order to construct comprehensive models that forecast the future dynamics and fate of these ecosystems under changing conditions. This position would be focused on a key aspect of this project β the variability of seafloor fluxes and their interaction with the microbial community to facilitate the habitability of shallow (up to 40 m) and mesophotic (up to 200 m) biodiversity hotspots such as reefs. Interested candidates, please contact by email Dr. Or Bialik (obialik@ocean.org.il) or Prof. Eyal Rahav (eyal.rahav@ocean.org.il) with a letter of motivation, CV, and contact details of at least one referee for this post not later than the 28th of August 2025.
I have a fully funded open #position for a PhD student/postdoc in marine #biogeochemistry. As part of the MARBEDS project, we are seeking someone to study seafloor fluxes and their interactions with microbial communities in biodiversity hotspots.
π§ͺβοΈπ
Contact me if you want more details.
π
Congratulations to Isabelle Basile-Doelsch, Research Director at INRAE/CEREGE, for winning an @erc.europa.eu Advanced Grant for her NanoCLICS project.
Learn more about her project: www.cerege.fr/en/nanoclick...
New job alert! We just opened a tenure-track Junior professor Chair at @cerege.bsky.social focused on the study of the critical zone in the Mediterranean and intertropical Africa. More info on the IRD website here:
en.ird.fr/tenure-track...
Contact me if you are interested!
Ooops, a foot pic. Sporting Bermuda pride sock.
It's #pride month, and whilst I'm still in Bermuda, far away from my regular life I'm reflecting on the world for LGBTQ+ folk, which seems to have gotten just a little bit worse this year... But we're not going away, and not giving up on making things better.
π³οΈβππ³οΈββ§οΈ
[Person with ponytail wearing lab coat hands balloon to another person in front of a springboard, a magnet hanging from above, and then a target] PERSON WITH PONYTAIL to Person 2: Rub this balloon against your head, then go jump past that magnet toward the target on the wall. [caption] Before the bathroom scale was invented, the only way to weigh people was mass spectrometry.
Mass Spec
xkcd.com/3094/
Every night is a disco for our foraminifera in their respiration chambers @biosstation.bsky.social with @case4climate.bsky.social @chalkyoceans.bsky.social @juliemeilland.bsky.social π§ͺβοΈππͺΈ
28.05.2025 15:58 β π 36 π 6 π¬ 1 π 0Thank you for coming, it's been inspirational and I'm so glad we made it work. *Nothing stops the foram whisperer*. ππ€«
24.05.2025 14:52 β π 6 π 0 π¬ 1 π 0Fieldwork needs fieldwork hair, and like this the forams can't see me coming in the turquoise waters around Bermuda. π§πΌββοΈ
20.05.2025 12:33 β π 21 π 1 π¬ 1 π 0About 12 juvenile pteropods as seen through a microscope.
Back in France, exoCean is still working hard...
πβ¨ A tiny miracle in the lab!
For the first time in our teamβs history, weβve successfully harvested pteropod egg sacs and captured the moment of their eclosion on film.
Excited to have hundreds of baby Forams in the lab after the first towing - different species - different behaviors! @exoceanlab.bsky.social @chalkyoceans.bsky.social
07.05.2025 13:55 β π 12 π 3 π¬ 0 π 0Tom with a fresh plankton sample about to be poured into the collection bucket. It's white so they stay cool on the way back to the lab.
We then collect the live plankton and try to keep them alive long enough to get to the lab. There we can look at how they respond to different conditions in a controlled setting. (And if you know @chalkyoceans.bsky.social, you know there will be boron involved).
07.05.2025 13:50 β π 6 π 2 π¬ 0 π 0