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Reposted by Tom Chalk

Dr (of rocks) Marcus Badger @climatebadger.bsky.social · 4d

Still time to apply:

Dr (of rocks) Marcus Badger @climatebadger.bsky.social · 16d

📢We're hiring!📢

We have a permanent Lecturer in Earth Sciences position available in @OU_EEE
@OpenUniversity

£47,389 to £56,535
Closing Date: 20 October 2025*

We are a friendly, research intensive school with supportive colleagues and great labs.

jobs.open.ac.uk/job/Lecturer...

Lecturer in Earth Sciences

jobs.open.ac.uk

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Reposted by Tom Chalk

exoCean Laboratory @exoceanlab.bsky.social · 6d

The 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 really… what a view when the doors are open, one can even see the emblematic « sainte victoire » behind the trees!

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Tom Chalk @chalkyoceans.bsky.social · 6d

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)

@chalkyoceans and Maxime on a boat fishing forams.

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Reposted by Tom Chalk

Julie Meilland @juliemeilland.bsky.social · 6d

Slowly 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 equipments… Such a nice adventure has started!

exoCean Laboratory @exoceanlab.bsky.social · 6d

The 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 really… what a view when the doors are open, one can even see the emblematic « sainte victoire » behind the trees!

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Reposted by Tom Chalk

Pallavi Anand (she/her) @anandpallavijha.bsky.social · 9d

#Lecturer position in #EarthSciences 👇🏼@openuniversity.bsky.social

Please apply, if interested 🙏🏼

Closing Date: 20 October 2025
Contract Type: #Permanent
Fixed Term Contract/End Date: Not Applicable

jobs.open.ac.uk/job/Lecturer...

Lecturer in Earth Sciences

jobs.open.ac.uk

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Tom Chalk @chalkyoceans.bsky.social · 9d

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* 😅

Olivier Sulpis @sulpis.bsky.social · 9d

🌟 Postdoc Opportunity in Marine Biogeochemistry at CNRS-CEREGE!

🚢 Are you a passionate researcher ready to tackle climate change? Dive into the ERC-funded Deep-C project in Aix-en-Provence, France!

⬇️

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Reposted by Tom Chalk

exoCean Laboratory @exoceanlab.bsky.social · 9d

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.

Olivier Sulpis @sulpis.bsky.social · 9d

🌟 Postdoc Opportunity in Marine Biogeochemistry at CNRS-CEREGE!

🚢 Are you a passionate researcher ready to tackle climate change? Dive into the ERC-funded Deep-C project in Aix-en-Provence, France!

⬇️

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Tom Chalk @chalkyoceans.bsky.social · 19d

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...

The authigenic and detrital neodymium isotopic composition in the modern Mediterranean Sea: implications for paleocirculation proxy

Neodymium isotopic composition (143Nd/144Nd or εNd) has been used as a tracer of water mass provenance in the modern and the past oceans. However, rec…

www.sciencedirect.com

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Tom Chalk @chalkyoceans.bsky.social · Sep 4

👏🏼

Sonia Chaabane @soniachaabane.bsky.social · Sep 4

My besties! ♥️
@chalkyoceans.bsky.social & @antacl.bsky.social

Science has never been about competition!
It’s about sharing, learning, and enjoying the journey together.
Thank you for being such wonderful researchers and friends!

#ICP15
@climatecerege.bsky.social

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Tom Chalk @chalkyoceans.bsky.social · Sep 4

Watch this space for so much new exciting science from the new influx of Ceregiens. @cerege.bsky.social

Pallavi Anand (she/her) @anandpallavijha.bsky.social · Sep 4

Day 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 🥳
@climatecerege.bsky.social @cerege.bsky.social

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Reposted by Tom Chalk

Pallavi Anand (she/her) @anandpallavijha.bsky.social · Sep 4

Day 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 🥳
@climatecerege.bsky.social @cerege.bsky.social

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Tom Chalk @chalkyoceans.bsky.social · Sep 4

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!

Anta delivering her #ICP15 talk in Bengaluru.

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Tom Chalk @chalkyoceans.bsky.social · Sep 2

@tdegaridel.bsky.social and @soniachaabane.bsky.social too. Miso is getting a lot of attention! #nomoreforampicking.

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Reposted by Tom Chalk

Kau))) @carbon8.bsky.social · Sep 1

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 CO₂ reconstructions from @eleniwater.bsky.social & @chalkyoceans.bsky.social. Nice to see all the paleoceanographers in #Bengaluru!

A photograph inside the JD Tata Auditorium in Bengaluru on the Indian Institute of Science campus—the photograph shows a large number of people seateed in the auditorium with Dr. Thomas Chalk (CEREGE) on stage showcasing a slide on CO₂ reconstructions.

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Tom Chalk @chalkyoceans.bsky.social · Sep 2

Thank you so much for the invitation #ICP15. Diversity makes us stronger, and the data shows it! ⏩🏳️‍🌈

Pallavi Anand (she/her) @anandpallavijha.bsky.social · Sep 1

Lovely to hear from @chalkyoceans.bsky.social about need for #diversity (of careers, people, methods and
minds) that underpins our working 🙏🏼 #ICP15

Pallavi Anand (she/her) @anandpallavijha.bsky.social · Sep 1

Next up @chalkyoceans.bsky.social improving Neogene CO2 reconstructions - proxies, calibrations, morphotypes and much more.. 🙏🏼

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Reposted by Tom Chalk

Pallavi Anand (she/her) @anandpallavijha.bsky.social · Sep 1

Next up @chalkyoceans.bsky.social improving Neogene CO2 reconstructions - proxies, calibrations, morphotypes and much more.. 🙏🏼

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Reposted by Tom Chalk

Climate group @CEREGE, France @climatecerege.bsky.social · Jul 30

A new paper from our team, and the opportunity to introduce Jaime Suarez @jysuarezibarra.bsky.social , postdoc in our micropaleontology group!

Jaime @jysuarezibarra.bsky.social · Jul 28

🚨New paper alert🚨

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...

PLANKTONIC FORAMINIFERA TEST SIZE DICTATED BY CONDITIONS IN LIFE AND POST-MORTEM | Journal of Foraminiferal Research | GeoScienceWorld

ABSTRACT. In this study, we quantify the impact of environmental conditions (temperature, productivity, and salinity) and taphonomic (carbonate

doi.org

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Reposted by Tom Chalk

Sonia Chaabane @soniachaabane.bsky.social · Jul 30

✨ Honored to witness the inauguration of the BISSAP lab at UCAD — a new lab for ecosystem monitoring in Senegal! 🌍🔬
Huge congratulations to everyone involved!
@climatecerege.bsky.social @ird-fr.bsky.social
#ScienceForAll #UCAD #IRD #Biodiversity #Africa #BISSAP
www.ird.fr/inauguration...

Inauguration du laboratoire BISSAP à l’UCAD : un nouveau centre de référence pour la surveillance des écosystèmes aquatiques en Afrique de l’Ouest | Site Web IRD

Le 21 juillet 2025, l’Université Cheikh Anta Diop de Dakar (UCAD) a inauguré le laboratoire BISSAP (Bioindicateurs, Imagerie et Surveillance des Systèmes Aquatiques et Pélagiques), en présence de Mous...

www.ird.fr

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Reposted by Tom Chalk

Jaime @jysuarezibarra.bsky.social · Jul 28

🚨New paper alert🚨

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...

PLANKTONIC FORAMINIFERA TEST SIZE DICTATED BY CONDITIONS IN LIFE AND POST-MORTEM | Journal of Foraminiferal Research | GeoScienceWorld

ABSTRACT. In this study, we quantify the impact of environmental conditions (temperature, productivity, and salinity) and taphonomic (carbonate

doi.org

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Reposted by Tom Chalk

Dr. Or M. Bialik |📚|🔬|🌊|⚒️ @obialik.bsky.social · Jul 15

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.
🧪⚒️🌊
Contact me if you want more details.

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 – 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.

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Reposted by Tom Chalk

CEREGE @cerege.bsky.social · Jun 23

🏅 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...

NanoCLICS: A New Approach to Understanding Carbon Dynamics in Soils - CEREGE

Isabelle Basile-Doelsch, Director of Research at INRAE and based at CEREGE, has been working for several years on the dynamics of carbon in soils, an area of particular concern for the environment.

www.cerege.fr

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Alexis Licht @alexislicht.bsky.social · May 21

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!

Tenure-Track Junior Professor Chairs | Site Web IRD

Procedures and timetable for pre-selections and auditions for junior professorships.

en.ird.fr

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Tom Chalk @chalkyoceans.bsky.social · Jun 1

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.

🏳️‍🌈🏳️‍⚧️

Ooops, a foot pic. Sporting Bermuda pride sock.

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Reposted by Tom Chalk

Randall Munroe @xkcd.com · May 29

Mass Spec

xkcd.com/3094/

[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.

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Gavin Foster @thefosterlab.bsky.social · May 28

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 🧪⚒️🌊🪸

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