The continental margin is a key source of iron to the HNLC North Pacific Ocean

Details The continental margin is a key source of iron to the HNLC North Pacific Ocean The continental margin is a key source of iron to the HNLC North Pacific Ocean

Apr 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008georl..3507608l&link_type=abstract

Geophysical Research Letters, Volume 35, Issue 7, CiteID L07608

Mathematics

Logic

24

Oceanography: Biological And Chemical: Trace Elements (0489), Marine Geology And Geophysics: Continental Shelf And Slope Processes (4219), Oceanography: Biological And Chemical: Chemical Tracers, Geochemistry: Marine Geochemistry (4835, 4845, 4850)

Scientific paper

Here we show that labile particulate iron and manganese concentrations in the upper 500 m of the Western Subarctic Pacific, an iron-limited High Nutrient Low Chlorophyll (HNLC) region, have prominent subsurface maxima between 100-200 m, reaching 3 nM and 600 pM, respectively. The subsurface concentration maxima in particulate Fe are characterized by a more reduced oxidation state, suggesting a source from primary volcagenic minerals such as from the Kuril/Kamchatka margin. The systematics of these profiles suggest a consistently strong lateral advection of labile Mn and Fe from redox-mobilized labile sources at the continental shelf supplemented by a more variable source of Fe from the upper continental slope. This subsurface supply of iron from the continental margin is shallow enough to be accessible to the surface through winter upwelling and vertical mixing, and is likely a key source of bioavailable Fe to the HNLC North Pacific.

Affiliated with

Also associated with

No associations

Rating

The continental margin is a key source of iron to the HNLC North Pacific Ocean does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The continental margin is a key source of iron to the HNLC North Pacific Ocean, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The continental margin is a key source of iron to the HNLC North Pacific Ocean will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1342711