Reduction–oxidation (redox) reactions occur during burial because sediments contain
reactive mixtures of oxidised and reduced components. Diagenetic chemical reactions …

In Walden, Thoreau1 noted that “the largest pond is as sensitive to atmospheric changes as
the globule of mercury in its tube”. Here, we consider the modern understanding of the …

PISCES-v2 is a biogeochemical model which simulates the lower trophic levels of marine
ecosystem (phytoplankton, microzooplankton and mesozooplankton) and the …

Atmospheric inputs of iron to the open ocean are hypothesized to modulate ocean
biogeochemistry. This review presents an integration of available observations of …

Abstract The Greenland and Antarctic Ice Sheets cover~\n10% of global land surface, but
are rarely considered as active components of the global iron cycle. The ocean waters …

Using multiple lines of evidence, we demonstrate that volcanic ash deposition in August
2008 initiated one of the largest phytoplankton blooms observed in the subarctic North …

Analysis of a global compilation of dissolved-iron observations provides insights into the
processes controlling iron distributions and some constraints for ocean biogeochemical …

Benthic iron fluxes from sites along the Oregon–California continental shelf determined
using in situ benthic chambers, range from less than 10μmolm− 2d− 1 to values in excess …

The mechanism by which nutrients in the deep ocean are uplifted to maintain nutrient-rich
surface waters in the subarctic Pacific has not been properly described. The iron (Fe) supply …

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) …