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February 2026 - Issue #73
SCIENCE HIGHLIGHTS
Trace Element Dynamics in the Oligotrophic Northwest Pacific: Insights from the China GEOTRACES GP09 Cruise
This special highlight summarises published articles from the GP09 cruise in the Northwest Pacific Ocean...
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Silicon isotopes reveal significant lithogenic input to dissolved silicon on the Kerguelen Plateau
Establishing sources, transformations and sinks of dissolved silicon, a major nutrient in the Southern Ocean, is of primary importance...
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Conservative behavior of radiogenic neodymium isotopes in the South Pacific interior
Zhang and co-workers present full-depth measurements of εNd and Nd concentrations along the GP21 transect across the South Pacific basin...
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Neodymium isotopes trace past Antarctic Intermediate Water circulation in the Arabian Sea
Shukla and co-authors reconstruct ventilation in the Northwestern Indian Ocean...
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Regional zinc cycling in the Indian Ocean
Chinni and his colleagues present dissolved zinc distributions across the Arabian Sea, Bay of Bengal and southern tropical Indian Ocean...
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Contrasting organic carbon  remineralisation rates revealed by particulate excess barium in the North Pacific and South China Sea
Yuan and co-workers quantify organic carbon remineralisation in the twilight zone of the China Sea using particulate excess barium as a proxy...
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Sedimentary controls on seawater nickel distributions and nickel isotope compositions: a two steps study
Nickel isotopic mass balance in the ocean stands among the less understood so far...
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23 million years of productivity reconstructed in the Central Pacific Ocean using past and modern proxies
Using diverse geochemical proxies, Chu and colleagues analysed an iron–manganese crust to reconstruct central Pacific productivity over the past 23 million years.
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GEOTRACES NEWS
GEOTRACES at Ocean Sciences 2026
Explore scientific sessions, posters, data demonstrations, and networking opportunities throughout the week!
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New Seawater Reference Materials for the GEOTRACES Community from Xiamen University
Seawater reference materials are freely available to the GEOTRACES community, with users contributing data and covering shipping costs.
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UK IronMan process study explores iron and manganese in the Southern Ocean
The team of international scientists on board the cruise will deliver essential data to make global ocean models more reliable and improve projections of future changes in the Southern Ocean.
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Australian COOKIES process study expedition underway in the Southern Ocean
This GEOTRACES process study will provide crucial data on the Cook Ice Shelf in East Antarctica...
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GEOTRACES Sesions at Goldschmidt 2026
Submit an abstract by 26 February 2026!
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GEOTRACES INFORMATIONS
Dates

Cruises

12 January – 25 February 2026, IRONMAN, Process Study GPr19, Southern Ocean.

1 January – 26 February 2026, COOKIES, Process Study GIpr13, Cook Glacier Continental slope.

8 December 2026 - 9 January 2027, EXPAND, Process Study GIpr14, Indian Ocean subtropical gyre.

 

Complete list of forthcoming cruises

 

Events

22 - 27 February 2026, Ocean Sciences Meeting 2026, Glasgow, UK. Check the GEOTRACES sessions&events. 

3 - 8 May 2026, EGU 2026, Vienna, Austria & Online. Check the GEOTRACES sessions. 

12 - 17 July 2026, Goldschmidt 2026, Montreal, Quebec, Canada. 

19 - 20 October 2026, GEOTRACES Data Management Committee Annual Meeting, Xiamen, China.

21 - 23 October 2026, GEOTRACES Scientific Steering Committee Annual Meeting, Xiamen, China.


Access the GEOTRACES calendar

GEOTRACES in Numbers

Cruises completed: 173
Section cruises completed: 54
Publications: 2759

Job/Student/Funding
Opportunities


Check the GEOTRACES website to view the latest opportunities posted, including:

Jobs

PhD & Postdoctoral Positions in Earth Sciences, The Hebrew University of Jerusalem, Israel
HUJI invites applications for PhD candidates and postdoctoral researchers.
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Call open – Bienvenüe post-doctoral fellowship program
Deadline for applications is 16th February 2026.
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Funding Opportunities

2026 Call for SCOR Working Groups
Now Open! Proposals due 10th April 2026.
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Latest Publications

 

-      Grand, M. M., & Hatta, M. (2026). A matrix-independent method for direct nanomolar dissolved aluminium analysis in seawater using programmable flow injection (pFI). Talanta, 300, 129271. doi:10.1016/j.talanta.2025.129271

-      Krisch, S., Olivelli, A., Gerringa, L. J. A., Middag, R., Rogalla, B., & Achterberg, E. P. (2025). The Arctic Ocean is a net sink for anthropogenic lead deposited into the Atlantic Ocean. Nature Communications, 16. doi:10.1038/s41467-025-67620-9

-      Lawrence, R. M., Shrikumar, A., Le Roy, E., Swift, J., Lam, P. J., Cutter, G. A., & Casciotti, K. L. (2026). Analysis of nutrient and hydrographic patterns on the GEOTRACES Pacific Meridional Section (GP15) using PYOMPA, a new framework for water mass analysis. Marine Chemistry, 274, 104598. doi:10.1016/j.marchem.2025.104598

- Pasqualini, A., Smethie, W. M., Newton, R., & Schlosser, P. (2026). Deep Water Renewal in the Amerasian Basin Derived From Natural and Anthropogenic Tracer Data Sets. Journal of Geophysical Research: Oceans, 131. doi:10.1029/2025jc02324

-       Tagliabue, A., Ryan‐Keogh, T., Baker, A., Bibby, T. S., Follett, C., Lohan, M. C., Naveira‐Garabato, A., Mayor, D. J., Milne, A., Moore, C. M., & Ussher, S. (2025). The Evolution of Southern Ocean Net Primary Production in a Changing Climate: Challenges and Opportunities. Global Change Biology, 31. doi:10.1111/gcb.70653

-       Xu, H., Rehkämper, M., Huang, Y., Jia, Z., Kreissig, K., Coles, B. J., Moore, R. E. T., Olivelli, A., Middag, R., Baker, A., Shelley, R., & van de Flierdt, T. (2026). Anthropogenic emissions of volatile Cd detected in western tropical North Atlantic surface seawater. Communications Earth &Amp; Environment. doi:10.1038/s43247-026-03211-w

-       Yuan, Z., Tammen, J. K., Liu, H., Gosnell, K. J., Wen, Z., Dai, M., Achterberg, E. P., & Browning, T. J. (2026). Phytoplankton Photophysiology Traces Iron Stress Hotspot in the South Pacific Ocean. Global Biogeochemical Cycles, 40. doi:10.1029/2025gb008911

 

Access the GEOTRACES Publication Database

GEOTRACES Publication Best Practices

 

 ✓ Please include “GEOTRACES” in either the title, abstract or keywords of your GEOTRACES publications.

✓
Intermediate Data Product (IDP) data contributors: Please use the DOoR portal to add any new publication of your data included in the IDP.
To facilitate future synthesis activities (and database searches), we strongly encourage you to select in the DOoR form (dropdown menu) the process your publications address.

 ✓ Please help us to acknowledge support from SCOR in your publications as follows: 
“The International GEOTRACES Programme is possible in part thanks to the support from the U.S. National Science Foundation (Grant OCE-
OCE-2513154) to the Scientific Committee on Oceanic Research (SCOR).”

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Do you have an announcement (job or student opportunity, event) that you would like to see published on the GEOTRACES eNEwsletter?  Contact us at ipo@geotraces.org

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