February 2023 - Issue #55
GEOTRACES Science Highlights
Do you want to know more about iron and its isotopes? This review is for you!
Authors present a comprehensive review of iron and iron isotope sources, internal cycling, and sinks in the ocean.
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Actinium-227 distribution traces at least three processes in the North Atlantic Ocean
Le Roy and colleagues report an oceanic section of Actinium-227 in the North Atlantic Ocean.
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Transient tracers, water mass ages and mixing time scales in the Arctic Ocean
Smith and colleagues determined iodine-129, chlorofluorocarbons and sulfur hexafluoride during three GEOTRACES cruises in the Arctic Ocean.
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Terrestrial iron inputs and reverse weathering in the Amazon mouth
Understanding the key processes that condition the net input of chemical species to the ocean is an important challenge...
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Tracing dust deposition with aluminium and silicate at a resolution never reached before
Benaltabet and his colleagues propose a study of the dissolved aluminium and silicate fate in the Gulf of Aqaba (Red Sea).
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Special Focus

Discover GEOTRACES Education channel!

Every month a new video to better understand the ocean!


Learn or use these videos for teaching!

Video 1: Istopes, Tracers of Origins and Chronometers
Video 1: Istopes, Tracers of Origins and Chronometers
Watch this video to learn what isotopes are and why are so important for marine science.

Watch the video

Forthcoming in March 2023...
Forthcoming in March 2023...
Discover how scientists have found that lead pollution in the marine environment has been reduced...

STAY TUNED!
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Want to contribute some videos? Please send them to us: ipo@geotraces.org

News
US GEOTRACES cruise in the Southern Ocean successfully completed!
GEOTRACES cruise GP17-OCE arrived in Punta Arenas, Chile on January 25, 2023, marking the end of a hard-fought but successful section.
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New Radio Podcast Series: The Australian CANYONS cruise
This podcast series provide insight into the work and life of the scientists during the CANYONS cruise.
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Hybrid MarChemSpec Tutorial at OCB2023
A hands-on tutorial for a new marine chemical speciation model MarChemSpec on June 15-16 (WHOI/hybrid).
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What can marine authigenic Nd isotopes be reliably used for? / 1-day hybrid workshop
We are organising a full day hybrid pre-conference workshop on Sunday 9th July: What can marine authigenic Nd isotopes be reliably used for? We aim to answer this question and…
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GEOTRACES sessions at ASLO 2023
Submit an abstract before 23rd February 2023!
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GEOTRACES sessions at Goldschmidt 2023
There is a very interesting programme at Goldschmidt 2023! Submit a session before 1st March 2023!
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GEOTRACES National Reports online now!
Thanks to all GEOTRACES national representatives for all their work!
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GEOTRACES Informations

GEOTRACES Dates

Cruises:

27 January - 12 March 2023, CANYONS Process Study (GIpr11), Cape Darnley, East Antarctica.

20 February - 6 March 2023, STING Process Study (GApr18), Eastern Gulf of Mexico.

11 April - 30 May 2023, German SO298 Section cruise (GP11), South Pacific Ocean.

12 May 2023 – 25 May 2023, Australian SOTS Process Study (GIpr08), Southern Ocean.

Upcoming GEOTRACES or GEOTRACES-related events:

23-28 April 2023, EGU General Assembly 2023, Viena, Austria and online. View GEOTRACES sessions

15-19 May 2023, AGU Chapman ConferenceAgros, Cyprus.

4-9 June 2023, ASLO 2023, Aquatic Science Meeting, Palma de Mallorca and online. View GEOTRACES Sessions. Submit an abstract before 23rd February!

12-15 June 2023, OCB2023 Summer Workshop, Woods Hole, USA. 

15-16 June 2023, Hybrid MarChemSpec Tutorial at OCB2023, Woods Hole, USA and online.

9 July 2023, What can marine authigenic Nd isotopes be reliably used for?, full day hybrid pre-conference workshop at Goldschmidt 2023.

9-14 July 2023, Goldschmidt 2023, hybrid, Lyon (France) and online. View GEOTRACES sessions. Submit an abstract before 1st March!

Access the GEOTRACES Calendar

Job Opportunities

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

Postdoctoral Position in Marine Environmental Genomics, LOMIC, Banyuls-sur-mer, France
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Postdoctoral Scientist in Particle Cycling – Ecosystems Center, Marine Biological Laboratory, Woods Hole, USA
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SCOR is seeking for the new Executive Director – applications open
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Postdoctoral Fellowship, Dartmouth College, USA
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Research Associate, Bigelow Laboratory for Ocean Sciences, USA
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Postdoctoral Research F​ellowship in Mercury Biogeochemistry, Stellenbosch University, South Africa
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Assistant Professor (tenure track) in Chemical Oceanography, Louisiana State University, USA
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Student Opportunities

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

PhD opportunity on Southern Ocean elemental biogeochemistry, University of Tasmania, Hobart, Australia
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PhD opportunity on atmospheric ocean iron fertilisation, University of Tasmania, Australia
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Funding Opportunities

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

The 2023 Call for SCOR Working Groups is open!
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Latest Publications

-       Al‐Hashem, A. A., Beck, A. J., Krisch, S., Menzel Barraqueta, J., Steffens, T., & Achterberg, E. P. (2022). Particulate Trace Metal Sources, Cycling, and Distributions on the Southwest African Shelf. Global Biogeochemical Cycles, 36(11). doi:10.1029/2022gb007453

 

-       Alımlı, N., & Yücel, M. (2022). Seafloor iron mobilization across the deep-water redox gradients of the Black Sea and the Sea of Marmara. doi:10.5194/egusphere-egu22-9601

 

-       Chen, X., Krisch, S., Al‐Hashem, A., Hopwood, M. J., Rutgers van der Loeff, M. M., Huhn, O., Lodeiro, P., Steffens, T., & Achterberg, E. P. (2022). Dissolved, Labile, and Total Particulate Trace Metal Dynamics on the Northeast Greenland Shelf. Global Biogeochemical Cycles, 36(12). doi:10.1029/2022gb007528

 

-       Gilbert, M., Ho, P., Whitmore, L., & Shiller, A. (2023). Automated determination of gallium in seawater using seaFAST pre-concentration and high-resolution inductively-coupled plasma mass spectrometry. Analytica Chimica Acta, 1241, 340799. doi:10.1016/j.aca.2023.340799

 

-      Tian, H.-A., van Manen, M., Wille, F., Jung, J., Lee, S., Kim, T.-W., Aoki, S., Eich, C., Brussaard, C. P. D., Reichart, G.-J., Conway, T. M., & Middag, R. (2023). The biogeochemistry of zinc and cadmium in the Amundsen Sea, coastal Antarctica. Marine Chemistry, 249, 104223. doi:10.1016/j.marchem.2023.104223

 

-       Wu, Y., Pena, L. D., Anderson, R. F., Hartman, A. E., Bolge, L. L., Basak, C., Kim, J., Rijkenberg, M. J. A., de Baar, H. J. W., & Goldstein, S. L. (2022). Assessing neodymium isotopes as an ocean circulation tracer in the Southwest Atlantic. Earth and Planetary Science Letters, 599, 117846. doi:10.1016/j.epsl.2022.117846

 

 

 

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. 
 ✓ Plea
se 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-1840868) to the Scientific Committee on Oceanic Research (SCOR).”

GEOTRACES in Numbers

Cruises completed: 142
Section cruises completed: 49
Publications: 2152

Send Your Announcements to the GEOTRACES International Project Office
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