Exciting Bermuda Day 3 for our @oxuniearthsci.bsky.social undergrads on board the RV Atlantic Explorer with expert guidance from @stannescollege.bsky.social + Earth Sciences alumna Eloise! Sampling and processing water from down to 3500 m depth in the subtropical Atlantic.

@oxuniearthsci.bsky.social 2025 Bermuda trip is complete! We were super lucky to see a trichodesmium bloom in the Sargasso Sea and sampled an anoxic layer in Harrington Sound (usually fully mixed at this time). Bermuda is a perfect location to bridge modern and paleo ocean-climate processes!

We've had an amazing two days welcoming visitors from far and wide to the Department as part of the University of Oxford Open Days. It was a joy to meet so many brilliant aspiring geoscientists and their families!

#booksky #writingcommunity

.. delighted to see recognition for Hugh Jenkyns (@oxuniearthsci.bsky.social) who published his first paper in 1967, discovered Ocean Anoxic Events in the 1970s, and is still publishing papers on the Jurassic today!

New research has shown rivers release ancient carbon dioxide into the atmosphere, uncovering a greater role for plants and soil in the carbon cycle 🌱 Featuring @profbobhilton.bsky.social‬ Read the full story: buff.ly/yv82d3X

Fantastic day @oxuniearthsci.bsky.social doing a sedimentary journey through the Triassic and Jurassic! Oo-tastic @drsturobinson.bsky.social

The #EarthSciences are under threat at Australian universities. As Rhodi Davies and Dorrit Jacob from ANU highlight: "climate resilience, sound environmental policy and energy security all begin with understanding the planet we live on" www.timeshighereducation.com/opinion/eart...

Nitrogen isotopes are a promising tool to reconstruct symbiosis in planktic foraminifera! Check out our latest paper: bg.copernicus.org/articles/22/...

PANGAEA is rescuing numerous datasets scheduled for decommissioning in May. PANGAEA has opened its archive to help safeguard these valuable resources. If you become aware of other endangered datasets, please contact them. Importantly, let others know where to find the data. www.pangaea.de

I'm on an " #AmmoniticoRosso " thing at the moment... my niece has been sending me pictures from Verona Arena today. With actual ammonites... and rosso

On the anniversary of the sinking of the Titanic, we thought we'd answer a question that's often asked, "If they raised the Mary Rose, why not raise the Titanic?" Allow our scaled diagram to explain...

Summer projects available for undergraduate students with Tamsin Mather, Joost Frieling and I @oxuniearthsci.bsky.social - please pass on to your students!

Lacustrine ooids and coated grains (mainly ostracods) from the Eocene Green River Formation, UT (USA). #ThinSectionThursday

The isle of Rùm and its layered intrusion remain undefeated for thin sections. Foliated troctolite (ol+plag) or 'allivalite' from Hallival, in the NMS rock collection. #ThinSectionThursday

Some excellent sedimentary structures at the junction of Cecil St and Peel St in Derby courtesy of the burst water main. Thanks to Severn Trent for the 3 day experimental run. #Streetsedimentology

March 24, 1960, the CUSS I - a former oil drill ship - departs the harbor of San Diego (California) as part of Project Mohole, an attempt to sample the oceanic lithosphere & the Mohorovičić discontinuity. www.vox.com/unexplainabl...

New post on Mary Lyell - one of the least-known pioneering Earth sci women despite her deep involvement in husband Charles Lyell's life and science and their network of geologist colleagues, including Darwin, Agassiz, Murchison, et al. www.geological-digressions.com/mary-lyell-1... ⚒️🧪

#fossilfriday a shell bed in the Purisima Formation at Capitola, northern CA coastline, early Pliocene (4.9-5.3 Ma). Many of the shells retain much of their original coloration!

An neat write up of what may have caused the planet covering glaciations between 720 million and 635 million years ago based on a geologically constrained global plate model: large-scale shut down of oceanic spreading centers decreases CO2 release. (Figure from link.) www.earthbyte.org/9984-2/

Postdoc on stegosaurs with Roger Benson at the AMNH careers.amnh.org/postings/4384

Many congratulations to this year's Geological Society medallists and award winners! www.geolsoc.org.uk/About/Press-...

🌊 🧪 The belts and escalators represent the organized flow of water, and the wandering of the people is the turbulent mixing superimposed on this organized flow. Although not perfect, this analogy does capture the important factors influencing the distribution of nutrients in the sea. -

February 16, 1832, the crew of the HMS Beagle disembarks to explore a tiny set of islands off the coast of Brazil. Charles Darwin recognized they were made from serpentinite thanks to a geological field-trip made one year earlier...

This #InternationalDayofWomenandGirlsinScience we we sat down with four of our amazing women researchers to hear their stories! Watch the videos on our YouTube channel: t.co/QFMFs9MFUF

Microbialites (sedimentary buildups formed by microbial activity) were very common in the Proterozoic, but other groups took over in the Phanerozoic. But when the environment is stressed, they come back - and we can use them to infer on past stress gradients. 🧪⚒️ www.sciencedirect.com/science/arti...

For anyone who is interested, a very brief explainer of what’s going on with historic church buildings: Church of England listed buildings are exempt from listed building controls, because the CoE has its own strict rules. The general council now proposes to bypass those rules.🧵

🌊 Ocean community. I made a bot to post excerpts from Tracers in the Sea...if it doesn't remind you too much of your candidacy exams, for more experienced oceanographers, or it is not too dated for early career researchers consider following along @tracers-in-the-sea.bsky.social

66 million years ago, a fish ate a sea lily... and then threw up www.bbc.com/news/article... #TheMoreYouKnow

For my first scientific post here, I want to talk about the Phanerozoic temperature record we published last Fall, which unfortunately has been making rounds in the climate denier circuit 👀 First though hopefully you can appreciate the beauty of this reconstruction ✨...

Ammonitico Rosso is a famous nodular, ammonite-rich limestone which is found across the Alpine chain. Not all is nodular though. Stone from Collemandina quarry at Sassorosso is used at the S. Maria Novella station in Florence. The quarry produces nodular & massive varieties #urbangeology

Great website to see shadow on Earth at any time, with the influence of moutains... shademap.app The sunset is at the time in Ireland and at Brasilia on June 21 🤔

The footprints were uncovered at a large quarry in Oxfordshire.

"Science: A Search for Understanding" In this moment, it is more important than ever for everyday Americans to understand how science works. Today I spent a good 10 minutes of my intro Oceanography class talking about this phrase and what it means. 🧵

Sedimtology Starter Pack updated….. go.bsky.app/LpKM3ek

The ILESLA doctoral training programme in Oxford has multiple full scholarships for graduate study in Earth, Environmental and Biological Sciences - applications close on January 29

Two weeks to go until the application deadline for ILESLA. If you or anyone you know would benefit from full funding to carry out a PhD in Life and/or Environmental Science please visit/refer to our website page iles.web.ox.ac.uk/how-apply where you can see open day videos and get full guidance.

🎉 New Paper Alert! ✨ “Plastic as a Sediment: A universal and objective practical solution…” Now we can assess plastic as a sediment and better understand the relationship of its physical properties with its environmental distribution! ✨It’s so exciting!✨ www.sciencedirect.com/science/arti...

Certified fresh: the Earth Science Women starter pack with almost 70 global women geoscientists for you to follow! Please help me out and submit more names, especially LBTQ+ women and women of color. Also any feeds that should be included. Rock on, sisters! go.bsky.app/BLDWXKt 🧪⚒️

#WeekendReading with The Depositional Record: Micritisation products in the inner ramp settings of the Abu Dhabi Lagoon doi.org/10.1002/dep2...

Acidification of the oceans as shown by the saturation state of aragonite (Ωarag), the free proton concentration ([H+]), pH on the total scale (pHT), and the anthropogenic carbon concentration. www.science.org/doi/10.1126/...

Looking for a postdoc for 2026? Interested in the interfaces between sedimentology and geochemistry? Biology and the seafloor? Climate change at sea? Come join my new group! I'm looking for candidates to apply with us for MSC fellowships on a range of topics. 🧪⚒️🌊

🚨Postdoc job offer!🚨 We are currently looking for a climate modeler to work with us at @climatecerege.bsky.social on Eocene climate simulations, to investigate the past connectivity of forested ecosystems and the mechanisms of primates dispersal. Job ad here: nuage.osupytheas.fr/s/PSdj4ns2SE...

The application is now open for paleoCAMP 2025 (Paleoclimate Training in Climate Archives, Models, and Proxies)! For graduate students in any area of paleoclimatology, our 2 week summer school is timescale agnostic and multidisciplinary - please apply or share widely! paleoclimate.camp/apply

#FossilFriday: a fossil which #MaryAnning would have seen on the beach between Lyme Regis and Charmouth, the serpulid worm Vermicularia (now Rotularia) concava in fallen blocks of the Lower Cretaceous Upper Greensand from high on Black Ven. Described by James Sowerby in 1813.

A new visualization showing the Keeling Curve alongside the Antarctic ice core CO2 data. svs.gsfc.nasa.gov/5447

Finally, we can talk about this awesome dinosaur excavation!! 🦖🦕😍⛏️🪣🙌 My super colleagues @djemurdock.bsky.social @kirstymedgar.bsky.social @richardjbutler.bsky.social & I led a team of 100 people, over 7 days, to excavate 200+ prints of Megalosaurus 🦖 & Cetiosaurus 🦕 www.bbc.co.uk/news/article...

Here’s the BBC News channel coverage of our Oxfordshire dinosaur tracks from earlier today, including an interview with me at the end: youtu.be/mIEmgtpO3RU?...

Having successfully munched my way through 24 chocolates prior to Christmas, I have now completed the word search on the back of my advent calendar (using my new dinosaur pen!) and found a bonus word! #Chert