Special Issue on Marine Particle Chemistry is complete!

The special issue “Marine Particle Chemistry: Influence on Biogeochemical Cycles and Particle Export” published in ACS Earth and Space Chemistry Frontiers is now fully available!

Marine Particle Chemistry: Influence on Biogeochemical Cycles and Particle Export
ACS Earth and Space Chemistry

Editors: Hilary G. Close, Phoebe J. Lam, and Brian N. Popp


Marine particles play a key role in the cycling of most elements in the ocean. Particles are typically operationally defined by their collection method and, therefore, span a wide size range, within which chemical properties and interactions may be heterogeneous. The papers in this collection address the challenges associated with studying particles in the marine environment with new types of chemical measurements, broadened oceanographic surveys, and novel sampling, experimentation, and modeling methods. Together, this collection of papers helps to fill critical gaps in our knowledge of the role of particles and elements in marine biogeochemical cycles.

Six papers in this collection report on results from the GEOTRACES programme, including the distributions of particulate trace elements (pTE) in snow, offshore pack ice, and surface waters in the Western Arctic (2), export fluxes of Hg from the Arctic (3) and pTE from the North Atlantic (4), the interplay of dissolved and particulate Fe at the Peru margin (5) and Nd concentrations and isotopic composition in the Western North Atlantic (6), and the solid-state chemical speciation of long-range hydrothermal particulate Fe (7):

1- Editorial: Close, H. G., Lam, P. J., & Popp, B. N. (2021). Marine Particle Chemistry: Influence on Biogeochemical Cycles and Particle Export. ACS Earth and Space Chemistry. https://doi.org/10.1021/acsearthspacechem.1c00091

2- Bolt, C., Aguilar-Islas, A., & Rember, R. (2020). Particulate Trace Metals in Arctic Snow, Sea Ice, and Underlying Surface Waters during the 2015 US Western Arctic GEOTRACES Cruise GN01. ACS Earth and Space Chemistry, 4(12), 2444–2460. https://doi.org/10.1021/acsearthspacechem.0c00208

3- Tesán Onrubia, J. A., Petrova, M. V., Puigcorbé, V., Black, E. E., Valk, O., Dufour, A., Hamelin, B., Buesseler, K. O., Masqué, P., Le Moigne, Frédéric A. C., Sonke, Jeroen E., Rutgers van der Loeff, M., Heimbürger-Boavida, L.-E. (2020). Mercury Export Flux in the Arctic Ocean Estimated from 234 Th/ 238 U Disequilibria. ACS Earth and Space Chemistry, 4(5), 795–801. https://doi.org/10.1021/acsearthspacechem.0c00055

4- Lemaitre, N., Planquette, H., Dehairs, F., Planchon, F., Sarthou, G., Gallinari, M., Gallinari, M., Roig, S., Jeandel, C., Castrillejo, M. (2020). Particulate Trace Element Export in the North Atlantic (GEOTRACES GA01 Transect, GEOVIDE Cruise). ACS Earth and Space Chemistry, 4(11), 2185–2204. https://doi.org/10.1021/acsearthspacechem.0c00045

5- Lam, P. J., Heller, M. I., Lerner, P. E., Moffett, J. W., & Buck, K. N. (2020). Unexpected Source and Transport of Iron from the Deep Peru Margin. ACS Earth and Space Chemistry, 4(7), 977–992. https://doi.org/10.1021/acsearthspacechem.0c00066

6- Stichel, T., Kretschmer, S., Geibert, W., Lambelet, M., Plancherel, Y., Rutgers van der Loeff, M., & van de Flierdt, T. (2020). Particle–Seawater Interaction of Neodymium in the North Atlantic. ACS Earth and Space Chemistry, 4(9), 1700–1717. https://doi.org/10.1021/acsearthspacechem.0c00034

7- Hoffman, C. L., Schladweiler, C. S., Seaton, N. C. A., Nicholas, S. L., Fitzsimmons, J. N., Sherrell, R. M., German C. R., Lam, P. J., Toner, B. M. (2020). Diagnostic Morphology and Solid-State Chemical Speciation of Hydrothermally Derived Particulate Fe in a Long-Range Dispersing Plume. ACS Earth and Space Chemistry, 4(10), 1831–1842. https://doi.org/10.1021/acsearthspacechem.0c00067