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George Swann

@geaswann.bsky.social

208 followers 121 following 0 posts

Professor in Physical Geography at the University of Nottingham

Posts Replies Media

Reposted by George Swann

Michael Henehan @michaelhenehan.bsky.social · 07/01/2025

Come do a PhD with us at Bristol! Looking for a student to look at B incorporation into silica - both experimentally-precipitated and biogenic.. With @krhendry.bsky.social @sophwestacott.bsky.social and Franziska Stamm. Deadline Monday 13th of January! DM or email me for more details. bit.ly/3W8WshH

nercgw4plus.ac.uk

Ground-truthing the boron isotope-pH proxy in biogenic silica — NERC GW4+

Lead Supervisor: Michael Henehan Project keywords: palaeo-pH, pCO2, silica, boron isotopes

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Reposted by George Swann

Gavin Foster @thefosterlab.bsky.social · 06/11/2024

Want a distraction from todays news? Then why not read this: agupubs.onlinelibrary.wiley.com/doi/full/10.... by Hannah Donald, @geaswann.bsky.social, @mudwaterclimate.bsky.social and me! We use boron isotopes in diatoms to constrain pH change in the N Pacific during the iNHG 2.7 million years ago🧪⚒️🌊

agupubs.onlinelibrary.wiley.com

Carbon Cycle and Circulation Change in the North Pacific Ocean at the Initiation of Northern Hemisphere Glaciation Constrained by Boron‐Based Proxies in Diatoms

δ11B and [B] in diatom frustules reveal a surface water increase of 0.3–0.5 pH units in the subarctic Pacific Ocean over the iNHG These changes would have lowered atmospheric pCO2 and contributed...

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Reposted by George Swann

Anson Mackay (they/them) @ans.bsky.social · 26/02/2024

New paper! First global compilation of 71 oxygen isotope records of diatom silica from lake sediments. Key point - distinct Holocene climate signals, showing that the proxy can be used as a robust palaeoclimate tool @meljleng.bsky.social @geaswann.bsky.social cp.copernicus.org/articles/20/...

cp.copernicus.org

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