Partitioning of Dissolved Iron and Iron Isotopes into Soluble and Colloidal Phases along the GA03 GEOTRACES North Atlantic Transect

Jessica N. Fitzsimmons, Gonzalo G. Carrasco, Jingfeng Wu, Saeed Roshan, Mariko Hatta, Christopher I. Measures, Tim M. Conway, Seth G. John, Edward A. Boyle

Research output: Contribution to journalArticlepeer-review

Abstract

The size partitioning of dissolved Fe (dFe<0.2 µm) into soluble (sFe<0.02 µm) and colloidal (0.02 µm56 Fe of +1.3‰ to +1.5‰) relative to dFe (δ 56 Fe~+0.5‰) in the surface ocean where sFe and cFe cycle independently, and identical sFe and dFe isotope ratios below 250 m where sFe and cFe are constantly partitioned and exchanged.

Original languageAmerican English
JournalDeep Sea Research Part II: Topical Studies in Oceanography
Volume116
DOIs
StatePublished - Jun 1 2015
Externally publishedYes

Keywords

  • Iron
  • Colloids
  • Ultrafiltration
  • Anopore
  • Cross flow filtration
  • Iron isotopes
  • North Atlantic Ocean
  • GEOTRACES
  • Trace metals
  • Chemical oceanography

Disciplines

  • Earth Sciences

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