!New Paper Alert! Corals are thought to make their skeletons from amorphous calcium carbonate (ACC). @amoeba-lab.bsky.social and I show here that this is however not compatible with their chemical composition. www.geochemicalperspectivesletters.org/article2623/ 1/2

New in GPL by Foster & Evans: The chemical composition of corals suggests either ACC undergoes near complete dissolution & exchange with the calcifying fluid during crystallisation, and/or skeletogenesis via ACC is of minor importance buff.ly/vxCgn70 @thefosterlab.bsky.social @amoeba-lab.bsky.social

🥳 It’s out! 📢 New PAGES Magazine: “The essence of time” Explore gaps, challenges & future directions in geological dating - from biostratigraphy to radioisotopic methods. ⭐ Read here: pastglobalchanges.org/publications... #PAGES #Paleoscience #EarthScience @marumunibremen.bsky.social

Chair in Earth Sciences position @uniofstandrews.bsky.social closing soon - Monday 23 March. Very broad remit, so if you’d like to join our lovely school, and get to live in the super beautiful and friendly wee nation of Scotland, please apply! www.st-andrews.ac.uk/earth-scienc... ⚒️🌊🧪

Our recent paper exploring the link between atmospheric CO2 and seawater chemistry was featured on CBC's (fantastic!) science programme 'Quirks & Quarks' this week, available here: www.cbc.ca/radio/quirks...

Feb 28: How starfish move their tiny tube feet, and more… | CBC Radio

Measuring rocket pollution, how calcium induced an ice age, unpacking dark matter and a listener question about freezing flows

cbc.ca

FYI, Academia.edu has changed its terms of service to give an irrevocable worldwide license for anything uploaded to its site to be used for generative AI. I do not consent to this and have pulled all my papers.

Academia.edu - Find Research Papers, Topics, Researchers

Academia.edu is the platform to share, find, and explore 50 Million research papers. Join us to accelerate your research needs & academic interests.

academia.edu

Ice sheets big and small www.nature.com/articles/s41...

Ice sheets big and small - Nature Geoscience

Ice sheets can be extremely sensitive, or remarkably resilient, to environmental perturbations. Reconstructions of past ice sheet variability help identify what controls their stability and how they m...

nature.com

"the drop in calcium closely matched the slowing down of seafloor spreading – the volcanic process that continuously creates new ocean floors" ⚒️ scitechdaily.com/scientists-s...

Scientists Solve a 66-Million-Year-Old Climate Mystery That Changed Earth Forever

Scientists have uncovered a surprising mechanism that may explain how Earth cooled dramatically after the age of dinosaurs. Scientists have solved a 66 million-year-old mystery, explaining how Earth s...

scitechdaily.com

Really excited to see this paper out!! Led by @vtcoop.bsky.social we show that if you use cold and warm paleoclimates together, you can reduce uncertainty in Earth's climate sensitivity by quantifying the pattern effect and more precisely constrain future climate change www.pnas.org/doi/10.1073/...

Paleoclimate pattern effects help constrain climate sensitivity and 21st-century warming | PNAS

Paleoclimates provide examples of past climate change that inform estimates of modern warming from greenhouse-gas emissions, known as Earth’s clima...

pnas.org

Our scientists have unravelled a 66 million-year-old mystery behind how our planet transformed from a tropical greenhouse to the ice-capped world of today. Read more: tr.ee/dPOe9u @amoeba-lab.bsky.social | @sotonoceanearth.bsky.social | @russellgroup.bsky.social

We're delighted to announce our latest paper, which argues that seawater chemistry changes may have played a key role in driving the long-term carbon cycle: www.pnas.org/doi/10.1073/...

Paleolatitude.org 3.0 is online! At what latitude was your backyard in the time of the dinosaurs? The answer is a simple mouse click away, and now also if your backyard lies one of the world's big mountain ranges!

Paper Alert❗️We present the first Oligocene record of orbital variability in abyssal ocean temperature based on benthic foraminiferal clumped isotopes. Temperature changes up to 4 degrees C with a 110 kyr pacing, indicating Antarctic ice-volume at this time was less dynamic than previously thought.

new paper led by Andressa Nauter-Alves assessing controls on trace elements (Mg, Sr, B, Li /Ca) in multiple species of benthic foraminifera using a large compilation of coretop samples (>1500 sites). dx.doi.org/10.1029/2025...

Thermal and Non‐Thermal Controls on Benthic Foraminiferal Mg/Ca, Sr/Ca, B/Ca, and Mg/Li: Global Core‐Top Compilation, Revised Calibrations, and Application to the Geologic Record

We compile ∼1,500 core-top benthic foraminiferal Mg-Sr-B-Li/Ca measurements from five species and one genus to produce new calibrations Many benthic foraminiferal elemental systems require multiv...

dx.doi.org

Absolutely delighted to announce the publication of our benthic foraminifera trace element compilation + revised multivariate calibrations: Nauter-Alves et al. (2025): agupubs.onlinelibrary.wiley.com/doi/10.1029/... With @willerstorfi.bsky.social @mudwaterclimate.bsky.social and others

Thermal and Non‐Thermal Controls on Benthic Foraminiferal Mg/Ca, Sr/Ca, B/Ca, and Mg/Li: Global Core‐Top Compilation, Revised Calibrations, and Application to the Geologic Record

We compile ∼1,500 core-top benthic foraminiferal Mg-Sr-B-Li/Ca measurements from five species and one genus to produce new calibrations Many benthic foraminiferal elemental systems require multiv...

agupubs.onlinelibrary.wiley.com

Fully funded PhD projects available in my group (Please share with interested parties, details here: www.thefosterlab.org/blog/2025/11...):

PhD Topics - Entry September 2026 — The Foster Lab

This year we are involved in 3 fully funded PhD projects via IGNITE our NERC DLA. The deadline is Thursday Jan 8th 2026 .  1.      Is the world already 1.5 C warmer?...

thefosterlab.org

Hello! we have a new paper out today in @science.org reviewing Calcifying Plankton : from Biomineralization to Global change 🌊🧪🐚 www.science.org/doi/10.1126/...

Calcifying plankton: From biomineralization to global change

The cycling of calcium carbonate (CaCO3) in the ocean is closely linked to seawater alkalinity and the regulation of atmospheric CO2. In the modern pelagic ocean, almost all CaCO3 is produced by three...

science.org

New Paper Alert!! Tessa Page and others show how corals deal with low or unbalanced nutrients www.nature.com/articles/s41... The main issue is lack of P that causes them to upregulate P-transporter genes and likely consume their symbionts and bleach! 🪸🌊🧪

Changes in host gene expression patterns underpin responses of the coral Stylophora pistillata to nutrient stress - Scientific Reports

Scientific Reports - Changes in host gene expression patterns underpin responses of the coral Stylophora pistillata to nutrient stress

nature.com

🎉Are you a mineralogist who also loves museums? 🎉 Come join the Natural History Museum Denmark! We are looking for an assistant professor and curator of mineralogy. Advert can be found below, but apply soon! Deadline is 11th August😱 candidate.hr-manager.net/ApplicationI...

Fascinating study on a #giantclam that was kept in the Dutch @burgerszoo.bsky.social aquarium for a decade and recorded changes in it's (semi)controlled environment in its shell. These types of growth experiments allow us to use shells as archives of past change www.sciencedirect.com/science/arti...

Ten years of Tridacna sclerochemistry at up to daily resolution from a controlled aquarium environment – Records of habitat change, induced seasonality and growth variability

Giant clams such as Tridacna sp., with their rapid shell accretion (mm-cm/year), decade-long lifespans and aragonitic shells, are invaluable (palaeo)e…

sciencedirect.com

If you can't be with the forams you love, love the forams you're with #Ammonia

👇🏼extended #ICP15 deadlines to submit abstracts and complete registration -5th May!

Oscar Branson@oscarbranson.bsky.social · last yr.

The Registration and Abstract Deadline submission deadline for #ICP15 has been extended to the 5th May. We know you were all busy at #EGU25 😁 @egu.eu www.icp15.com/news/5th-may...

Great to finally hold this in my hand! Pleasure to work with @amoeba-lab.bsky.social and Ros Rickaby in editing this issue of Elements: Biomineral Geochemistry. Thanks also to all the authors who made such a great set of articles! www.elementsmagazine.org 🧪🌊⚒️

!New Paper Alert! Matrix independent and interference free in situ boron isotope analysis by laser ablation MC-ICP-MS/MS pubs.rsc.org/en/content/a.... In it we use our Neoma MC-ICPMS/MS to overcome the complexities of measuring boron isotopes by Laser Ablation in carbonates and other minerals. ⚒️🧪🌊🪸

Need micropaleontology slides? I started a company! MicroPaleoWorks.com. If you need slides, hit me up. Prices range from 1.50 to 2.20 each depending on the variety. We can customize with numbering for a fee. We are a #smallbusiness #womenowned #madeintheUSA using #canadianaluminum & #recycledpaper

MicroPaleoWorks | micropaleoslides

MicroPaleoWorks, a Foraminarium company. Supplier of micropaleoslides for foraminifera and other microfossils or small samples

micropaleoworks.com

Very pleased to have co-edited the latest version of Elements Magazine (www.elementsmagazine.org) "Biomineral Geochemistry" with @amoeba-lab.bsky.social and Ros Rickaby. Topics range from controls on CaCO3 polymorph to the role of amorphous intermediate phases and "vital effects". 🧪🌊🪸⚒️

Absolutely delighted to announce that our issue of Elements was published today: www.elementsmagazine.org Highlighting how biomineral geochemistry can be (simultaneously) used to reconstruct past climate change and constrain biomineralisation processes

About ten days left for this job! Don't miss the chance!

Bieito Fernandez Castro@bfcastro.bsky.social · last yr.

WE ARE HIRING. Interested in ocean mixing? Come work with us in the ARIA-funded POLEMIX project to create and deploy a float-based mixing observing system in the subpolar North Atlantic. Applications here: jobs.soton.ac.uk/Vacancy.aspx... @sotonoceanearth.bsky.social @noc.ac.uk

Today in the Amoeba lab - an initial step on our path to building a new dedicated foraminifera culturing facility. Here are our first images of live foraminifera!

#ICP15 #perspective #speakers are Raja Ganeshram @edinburgh-uni.bsky.social , B N Goswami, Sidney Hemming @lamontearth.bsky.social @bridgetwade.bsky.social Thomas Westerhold @marumunibremen.bsky.social All our #pleanry #speakers are now announced 👇🏼😊 www.icp15.com/themes