- Scandium: a new oceanic tracer with surprising properties
The first modern data set of dissolved scandium (Sc) in the open ocean is presented. Thanks to three GEOTRACES cruises, its distribution is compared between the different oceanic basins. This work also compares the reactivity of Sc with its trivalent periodic table group mates: yttrium (Y) and lanthanum (La) on the one hand, and aluminium (Al) and gallium (Ga) on the other hand...
- Gadolimium, a Rare Earth Element becoming a human contaminant and tracer of wastewater discharge in the ocean
Gadolinium (Gd) is increasingly used in contrast agents for magnetic resonance imaging. It is therefore released in the wastes of hospitals and research centres. As a consequence, Hatje and collaborators showed that anthropogenic Gd concentrations in San Francisco Bay increased by an order of magnitude over the past 2 decades...
- Decreasing of the industrial lead contamination in the Amundsen Sea area
Since the phasing-out of leaded automobile gasoline, the imprint of industrial lead is decreasing everywhere. Antarctica snow and ice are no exception to this general rule, as shown by measurements of lead (Pb) concentration and isotopic composition in these environments as well as in the Amundsen Sea Polynya...
- Onboard analysis of dissolved zinc everywhere in the open ocean with a Lab on Valve (LOV) system of the size of a bottle of wine is becoming possible
Thanks to the work of Maxime Grand and collaborators, it is now possible to analyse dissolved zinc (DZn) on board, from any kind of seawater using a "Lab On Valve (LOV)" method. For the first time, automated matrix removal, extraction of the target element, and fluorescence detection have been performed within a miniaturized flow manifold...
- Successful GEOTRACES Workshop held at Goldschmidt 2016
A hands-on workshop to teach standard and advanced Ocean Data View (ODV) methods for the exploration and scientific analysis of GEOTRACES data was held on Sunday 26 June 2016 in Yokohama, Japan. The workshop "Exploring GEOTRACES Data with ODV" was more than successful with 46 participants from 13 different nations.
For more information about this workshop please click here.
Picture: Participants of the Workshop "Exploring GEOTRACES with Ocean Data View".
- GEOTRACES Indian Ocean Planning Workshop conducted in Japan
35 GEOTRACES scientists met in Yokohama (Japan) on 29 June 2016 to discuss the GEOTRACES Indian Ocean implementation plan. The GEOTRACES Indian Ocean Planning workshop was organised by Catherine Jeandel (LEGOS, OMP, France) and Andy Bowie (University of Tasmania, Australia) during the Goldschmidt 2016 Conference.
The workshop presentation is available to donwload from the workshop web page. The report of the workshop will also be posted on this web page as soon as available.
-Lerner, P., Marchal, O., Lam, P. J., Anderson, R. F., Buesseler, K., Charette, M. A., Edwards, R. L., Hayes, C. T., Huang, K-F., Lu, Y., Robinson, L. F., Solow, A. (2016). Testing models of thorium and particle cycling in the ocean using data from station GT11-22 of the U.S. GEOTRACES North Atlantic section. Deep Sea Research Part I: Oceanographic Research Papers, 113, 57–79. doi:10.1016/j.dsr.2016.03.008.
- Struve, T., van de Flierdt, T., Robinson, L. F., Bradtmiller, L. I., Hines, S. K., Adkins, J. F., Lambelet, M., Crocket, K. C., Kreissig, K., Coles, B., Auro, M. E. (2016). Neodymium isotope analyses after combined extraction of actinide and lanthanide elements from seawater and deep-sea coral aragonite. Geochemistry, Geophysics, Geosystems, 17(1), 232–240. doi:10.1002/2015GC006130.
-Murphy, K., Rehkämper, M., Kreissig, K., Coles, B., & van de Flierdt, T. (2016). Improvements in Cd stable isotope analysis achieved through use of liquid–liquid extraction to remove organic residues from Cd separates obtained by extraction chromatography. J. Anal. At. Spectrom., 31(1), 319–327. doi:10.1039/C5JA00115C.
-Hatje, V., Bruland, K. W., & Flegal, A. R. (2016). Increases in Anthropogenic Gadolinium Anomalies and Rare Earth Element Concentrations in San Francisco Bay over a 20 Year Record. Environmental Science & Technology, 50(8), 4159–4168. doi:10.1021/acs.est.5b04322.
-Parker, C. E., Brown, M. T., & Bruland, K. W. (2016). Scandium in the open ocean: A comparison with other group 3 trivalent metals. Geophysical Research Letters, 43, 2758–2764. doi:10.1002/2016GL067827.
Banner 3D scene figure: 3D scene showing the distribution of dissolved iron in the Atlantic Ocean. Source: Schlitzer, R., eGEOTRACES - Electronic Atlas of GEOTRACES Sections and Animated 3D Scenes, http://www.egeotraces.org, 2014.