Metal contents of North Atlantic phytoplankton across environmental gradients

Twining and co-workers (2015, see reference below) provide the first direct measurements of metal quotas in phytoplankton from across the North Atlantic Ocean (US GEOTRACES GA03), known to be subjected to aeolian Saharan inputs and anthropogenic inputs from North America and Europe. The authors combine chemical leaches (to extract biogenic and otherwise labile partiulate phases) […]

Nov / 25 / 2015

Large fluxes of dissolved aluminium exported from the coast to the ocean

In the Eastern China Sea (ECS), the continental shelf serves as an important source of dissolved aluminium (DAl) for the overlaying waters via resuspension of sediments and benthic fluxes. This was demonstrated by Ren et al. (2015, see reference below), who identified cross-shelf transport in the subsurface water over the ECS. The DAl export from […]

Oct / 06 / 2015

Overview of the dissolved iron, manganese and aluminium distributions along the North Atlantic GEOTRACES GA03 section

Three trace elements distributions (iron, manganese and aluminium) help to constrain the sources of chemical elements in the North Atlantic Ocean. Atmospheric, Mediterranean Sea and margin inputs are confirmed while the importance of the hydrothermal venting is revealed. Hatta, Measures and co-workers (2014, see references below) established an overview of dissolved iron, manganese and aluminium […]

Sep / 22 / 2014

A new model of the oceanic aluminium distribution

Taking into account most of the parameters that govern any trace element’s oceanic behaviour is a challenge, given their number and complexity. Marco van Hulten and co-workers (2014, see reference below) propose here the most complete model ever written for the oceanic aluminium (Al) distribution. In addition to atmospheric input -which was the only term […]

Aug / 26 / 2014

Results from the first US-GEOTRACES cruise in the North Atlantic

Results from the first US-GEOTRACES cruise in the North Atlantic are coming out! Andrew Wozniak and co-authors show that aerosols from European-influenced air masses (combustion influenced) have higher relative iron (Fe) and aluminium (Al) solubilities, higher Water Soluble Organic Carbon (WSOC)/trace metal ratios, and distinct organic matter (OM) chemical characteristics compared to those from North African-influenced […]

Oct / 28 / 2013