Coastal upwelling supplies nutrients supporting primary production while also adding the
toxic trace metal mercury (Hg) to the mixed layer of the ocean. This could be a concern for …

The various isotopes of thorium offer oceanographers tools for tracking particulate matter in
the ocean across multiple timescales. To learn about the cycling of trace elements in the …

Marine biogenic calcium carbonate (CaCO3) cycles play a key role in ecosystems and in
regulating the ocean's ability to absorb atmospheric carbon dioxide (CO2). However, the …

Identifying mechanisms driving the substantial dissolution of biogenic CaCO3 (60 to 80%) in
surface and mesopelagic waters of the global ocean is critical for constraining the surface …

POC and PIC are indispensable components in the global ocean carbon cycle, their
transport and space distribution being driven by the biological carbon pump and the …

Measurement of the mineral surface area (MSA) of sedimentary particles is a traditional
approach for studying the transport and protection of organic carbon (OC) in marine …

The marine carbon cycle has a central role in biogeochemical cycling and a close
interaction with the climate system. Here, we use the stable carbon isotope (δ 13 C) of …

Abstract Radium‐226 (226Ra) and barium (Ba) exhibit similar chemical behaviors and
distributions in the marine environment, serving as valuable tracers of water masses, ocean …

Abstract Particulate C: N: P: Si ratios and their variations in the upper ocean are crucial for
understanding carbon export and its coupling with nutrient dynamics and phytoplankton …

Vertical particle fluxes of particulate organic carbon (POC), chlorophyll a (Chl a) and
biogenic silica (bSi) were measured on the productive shelf of southern Africa, the Agulhas …