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Ocean chemistry

Fingerprints of a trace nutrient

Lack of dissolved iron in the sea limits biological productivity and the uptake of carbon dioxide. The sources of dissolved iron in the North Atlantic Ocean have been identified from isotopic variations of this trace nutrient. See Letter p.212

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Figure 1: Saharan dust blows north of the Canary Islands.

Jacques Descloitres, MODIS Rapid Response Team, NASA/GSFC


  1. Johnson, K. S., Gordon, R. M. & Coale, K. H. Mar. Chem. 57, 137–161 (1997).

    CAS  Article  Google Scholar 

  2. Conway, T. M. & John, S. G. Nature 511, 212–215 (2014).

    ADS  CAS  Article  Google Scholar 

  3. Boyd, P. W. & Ellwood, M. J. Nature Geosci. 3, 675–682 (2010).

    ADS  CAS  Article  Google Scholar 

  4. Martin, J. H. Paleoceanography 5, 1–13 (1990).

    ADS  Article  Google Scholar 

  5. Mahowald, N. M. et al. Glob. Biogeochem. Cycles 19, GB4030 (2005).

    ADS  Google Scholar 

  6. Kohfeld, K. & Ridgwell, A. in Surface Ocean–Lower Atmosphere Processes (eds Le Quéré, C. & Saltzman, E. S.) 251–286 (AGU, 2009).

    Book  Google Scholar 

  7. Bennett, S. A. et al. Earth Planet. Sci. Lett. 270, 157–167 (2008).

    ADS  CAS  Article  Google Scholar 

  8. Tagliabue, A. et al. Nature Geosci. 3, 252–256 (2010).

    ADS  CAS  Article  Google Scholar 

  9. Ziegler, M., Diz, P., Hall, I. R. & Zahn, R. Nature Geosci. 6, 457–461 (2013).

    ADS  CAS  Article  Google Scholar 

  10. Martínez-Garcia, A. et al. Nature 476, 312–315 (2011).

    ADS  Article  Google Scholar 

  11. Tagliabue, A., Aumont, O. & Bopp, L. Geophys. Res. Lett. 41, 920–926 (2014).

    ADS  CAS  Article  Google Scholar 

  12. Sedwick, P. N., Sholkovitz, E. R. & Church, T. M. Geochem. Geophys. Geosyst. 8, Q10Q06 (2007).

    Article  Google Scholar 

  13. Baker, A. R. & Croot, P. L. Mar. Chem. 120, 4–13 (2010).

    CAS  Article  Google Scholar 

Download references

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Correspondence to Joseph A. Resing or Pamela M. Barrett.

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Resing, J., Barrett, P. Fingerprints of a trace nutrient. Nature 511, 164–165 (2014).

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