Contribution of sandy beaches to the oceanic silica cycle
This paper calls into question the commonly accepted idea of an oceanic silicon cycle in equilibrium.
Science Highlights
Some recent GEOTRACES science findings are reported below.
North – South contrasting behavior of dissolved cobalt in the Indian Ocean
Malla and Singh have studied the complex biogeochemical processes of total dissolved cobalt in the Indian Ocean.
The Amazonian mangrove systems accumulate and release dissolved neodymium and hafnium to the oceans
Xu and colleagues investigated the concentrations of rare earth elements in the Amazonian mangrove.
Biological production of ligands influences iron chemistry in hydrothermal systems
For the first time, siderophores and siderophore-producing microbes were determined in 11 distinct hydrothermal plume environments.
Nutrient-OMICS coupling approach reveals unexpected actors for atmospheric carbon sequestration
Sharma and colleagues investigated the role of clay minerals in strengthening the marine biological pump.
Distribution and fate of the lithogenic and anthropogenic aerosols over the Mediterranean and Black Seas
Shelley and co-authors propose an extensive coverage of the distribution and fate of the lithogenic and anthropogenic aerosols over the Mediterranean and Black Seas.
News on the dinitrogen fixation mechanisms across the North-South Indian Ocean
Chowdhury and his colleagues provide an extensive study of the dinitrogen fixation mechanisms from the tropical to the austral Indian Ocean.
When covariance of trace metals and prokaryotic taxa are tagging water masses (Southern Indian Ocean)
Zhang and colleagues investigated the potential reciprocal links between diverse prokaryotic taxa and concentrations of trace elements.
Warning on Polonium-210/Lead-210 data quality!
Alerted by the fact that the published Polonium-210:Lead-210 profiles showed ubiquitous disequilibrium in the deep ocean, Mark Baskaran and colleague conducted a critical review…