Save the date! Joint GEOTRACES/PAGES Workshop



Trace element and isotope proxies in paleoceanography:
A synthesis workshop

3 – 5 December 2018, Aix-Marseille, France


: The joint GEOTRACES/PAGES workshop on the synthesis of geochemical proxies used in paleoceanography aims to establish the strength, limits and conditions of application of a given proxy. 
There is a vital need for a synthesis of geochemical proxies used in paleoceanography to improve interpretation of commonly used proxies. This synthesis is timely in view of the wealth of new data coming from GEOTRACES and contemporary programs. The workshop will bring together expertise from GEOTRACES, PAGES, and the broader oceanographic community of observationalists and modellers that will exploit new data to provide a more rigorous calibration of proxies and interpretation of their records.

Working groups
Biological productivity / Oceanic circulation / Particle flux and sedimentation rate / Physical and/or biogeochemical modelling.

 PAGES, GEOTRACES, SCOR, US-NSF, CNRS-INSU-LEFE, Aix-Marseille Université, Thermo Fisher Scientific and John Cantle Scientific.

More information
 will be available in early 2018. For any questions, please contact: Kazuyo Tachikawa ( or Laurence Vidal (

We look forward to seeing you at the workshop.

Workshop planning committee

Robert Anderson – Lamont-Doherty Earth Observatory, USA
Damien Cardinal  –  LOCEAN, Sorbonne Université, France
Martin Frank – GEOMAR Helmholtz Centre for Ocean Research, Kiel, Germany
Chris Hayes – University of Southern Mississippi, USA
Gideon Henderson – University of Oxford, UK
Tristan Horner – Woods Hole Oceanographic Institution, USA
Catherine Jeandel – Observatoire Midi Pyrenees, France
Susan Little – Imperial College, UK
Marie-France Loutre - PAGES International Project Office, Switzerland
Thomas Marchitto – University of Colorado, USA
Elena Masferrer Dodas – GEOTRACES International Project Office, France
Katharina Pahnke – Max Planck Research Group - Marine Isotope Geochemistry, Germany
Kazuyo Tachikawa – CEREGE, France
Laurence Vidal – Aix-Marseille Université, France
Jimin Yu – Australian National University, Australia
Liping Zhou – Peking University, China


5 minutes survey on the IDP2017

Please take part in this short (5 minutes) survey on the GEOTRACES Intermediate Data Product 2017

Your contribution will help us to improve the data product for the next release, expected in 2021.

Many thanks in advance!

Want to learn more about GEOTRACES Intermediate Data Product? Click here.


Congratulations to Prof. Minhan Dai - Xiamen University, China

CONGRATULATIONS to Prof. Minhan Dai who has been elected a member of the Chinese Academy of Sciences (

Minhan Dai, Xiamen University, China, was GEOTRACES SSC member from 2007-2009.

New SEARCHABLE on-line Database of GEOTRACES Publications!




Looking for a list of GEOTRACES publications by

GEOTRACES parameter
keyword - author - year - title... ?

We invite you to discover the 

New SEARCHABLE on-line Database of
GEOTRACES Publications

 Click here

How can you contribute publications to it? 

Include "GEOTRACES" in either the title, abstract or keywords of your GEOTRACES publications! 

The GEOTRACES International Project Office (IPO) will then easily find them and automatically include them in the database.

GEOTRACES IDP data contributors: 

Please use the following form to inform the GEOTRACES IPO of new publications that should be linked to your data included in the GEOTRACES Intermediate Data Product (IDP):

Individuals may also inform the GEOTRACES IPO of recent GEOTRACES-related publications by email


logo scorJoint ft



First GEOTRACES Summer School: Just Excellent!

The first GEOTRACES Summer School was held from 20th to 26th August 2017 in Brest, France. The summer school aimed at teaching the skills and knowledge necessary for a good understanding of the biogeochemical cycles of trace metals. It brought together 60 students and 26 world-leading international scientists.

Throughout the week, a combination of lectures, practical sessions in the laboratory, poster and drop-in sessions were held. The practical sessions included: mass spectrometry (MC-ICPMS, MC TI-MS and HR-ICP-MC), modeling, Ocean Data View, voltametry, flow injection analysis, and sampling and sample handling. The programme is available to download here

SS 021 logo  2017 SS 016 2017 SS 061 lab 

The summer school was an absolute success allowing PhD students and early career researchers to see how their work fits within the international community of GEOTRACES, as well as, permitting them to build a network of collaborations that will help them in their careers. 

THANKS to the organising committee, Hélène Planquette, Thomas Gorgues, Geraldine Sarthou, Aurélie Pinna and Nadine Reniers, the Scientific Committee, the sponsors (LabexMER and SCOR) and all the lecturers who made this summer school possible!

GEOTRACES plans to organise another summer school in 2019... More information will be available in due time.

 2017 SS 022

 2017 GEOTRACES Summer School Participants

Four IMPORTANT announcements linked to IDP2017


Dear colleagues,

We have four important announcements linked to the recently released Intermediate Data Product (IDP) 2017, some of which may affect your data, so please read carefully:

1. During the preparation of IDP2017 the names of GEOTRACES parameters and cruises were formalised. These are available at the following link:  We ask for investigators to use these conventions during the future submission of data and intercalibration reports where possible to facilitate activities associated with the management of GEOTRACES data.

2. GEOTRACES has decided to release an update to its recent 2017 Intermediate Data Product in conjunction with a Townhall on Wednesday the 14 February 2018 at the 2018 Ocean Sciences meeting in Portland (USA). This version of the IDP2017 v2 will be focused on including data approved by the standards and intercalibration committee but not processed in time for inclusion in the IDP2017 v1.

3. The release of IDP2017 v2 provides an opportunity to fix any errors/omissions in the v1 of IDP2017. To facilitate this, we ask all investigators to examine the IDP2017 v1 and report any errors or omissions to  and  by the 15th of December 2017. We draw attention to the fact that users should focus on the actual IDP2017 digital datasets (available at: or the webODV extractor (available at:, rather than the web-based site, which only presents a subset of the IDP2017 data.

4. There may be errors in IDP2017 associated with the data quality flags that we would like you to check in your data. Data sets that were processed at GDAC “mapped” the flag schemes you might have used to the IODE flag scheme that is used in IDP2017:

1 Good:  Passed documented required QC tests

2 Not evaluated, not available or unknown: Used for data when no QC test performed or the information on quality is not available

3 Questionable/suspect: Failed non-critical documented metric or subjective test(s)

4 Bad: Failed critical documented QC test(s) or as assigned by the data provider

9 Missing data: Used as place holder when data are missing

Since your IDP2017 data passed the S&I review, it should have flag 1, unless you specified a flag that would correspond with flag 2, 3, 4, or 9. Because the IODE scheme does not have a flag for “Below Detection Limit” (BDL), data that were reported as BDL were mapped in IDP2017 to appear as zero values with flag 2. Please check that any data you reported as BDL shows in IDP2017 as zero values with flag 2. Please also check all other flags in your data to make sure they were mapped as closely as possible to the IODE flag scheme.

Thank you for your support of the GEOTRACES program,

Andrew Bowie, William Landing and Alessandro Tagliabue
Co-chairs, GEOTRACES Data Management Committee

 Data Product (IDP2017)


 Data Assembly Centre (GDAC)


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