Study led by Kim Mayfield published in Nat. Commun. illustrating the impact of groundwater inputs on marine isotope budgets (including for barium!).
Study led by Dalton Hardisty published in Earth Planet. Sci. Lett. showing surprisingly slow rates of iodate reduction in the Eastern Tropical North Pacific, implying that water mass mixing is an important control on the relationship between dissolved oxygen and iodine speciation in oxygen-minimum zones.
Study led by Francisca Martínez-Ruiz published in Front. Earth Sci. showing similar patterns of barite precipitation throughout the mesopelagic ocean, suggesting a common (organo)mineralization driving process. This paper is part of a special issue entitled: The Oceanic Particle Flux and its Cycling Within the Deep Water Column.
We’re pleased to welcome Evan Paris, 2020 Summer Student Fellow, to the NIRVANA Labs! Evan will be researching the role of seawater chemistry in shaping the composition of ferromanganese deposits, working closely with Tristan Horner and Ann Dunlea.
Though the WHOI campus remains closed, NIRVANA team members are meeting virtually to discuss their projects, publications, and plans!
Julia Middleton returns to Woods Hole after two months collecting samples in the Southern Ocean (Indian Sector) aboard the R/V Thomas G. Thompson (cruise TN376).
Emilie Le Roy is at the 2020 Ocean Sciences meeting in San Diego presenting her research on radium cycling along the GEOTRACES GP15 transect. Other research featuring NIRVANA team members at the meeting: Dalton Hardisty on iodide cycling in oxygen-minimum zones Laura Whitmore on barium cycling in the Arctic
Congratulations to Maureen Auro, who today was promoted to Research Associate III!
Study led by Sune Nielsen published in Geochim. et Cosmochim. Acta exploring the ‘ins and outs’ of the Aleutian and Ryukyu Arcs, showing only minor fractionations associated with Ba mobilization from the down-going slab, thus underscoring the utility of Ba isotopes to apportion fluid sources to arc magmas.
Study led by Haifeng Fan published in Geobiol. showing a significant perturbation to marine redox conditions during the Shuram negative C isotope excursion.