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Recent happenings

Paper in press: Investigating iodate reduction in the Eastern Tropical North Pacific

By Tristan Horner | 2020-11-20

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. Full citation: Hardisty, D. S., Horner, T. J., Evans, N.,…

Paper in press: Bringing barite formation into focus

By Tristan Horner | 2020-10-28

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. Full citation: Martínez Ruíz, F. C., Paytan, A.,…

Welcome Evan!

By Tristan Horner | 2020-06-21

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.

Quaranteam Meeting

By Tristan Horner | 2020-03-25

Though the WHOI campus remains closed, NIRVANA team members are meeting virtually to discuss their projects, publications, and plans!

Welcome back Jule!

By Tristan Horner | 2020-03-16

Jule 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).

NIRVANA at Ocean Sciences Meeting

By Tristan Horner | 2020-02-16

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  

Maureen Wisch

Congratulations Maureen!

By Tristan Horner | 2020-02-10

Congratulations to Maureen Auro, who today was promoted to Research Associate III!

Paper in press: Barium-isotopic mass balance of subduction zones

By Tristan Horner | 2020-02-05

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. Full citation: Nielsen, S. G., Shu, Y.,…

Paper in press: Oceanic oxygen dynamics during the Ediacaran

By Tristan Horner | 2020-01-14

Study led by Haifeng Fan published in Geobiol. showing a significant perturbation to marine redox conditions during the Shuram negative C isotope excursion. Full citation: Fan, H., Nielsen, S. G., Owens, J. D., Auro, M., Shu, Y., Hardisty, D. S., Horner, T. J., Bowman, C. N., Young, S. A., & Wen, H. (2020). Constraining oceanic…

Welcome Dani!

By Tristan Horner | 2019-11-17

We’re pleased to welcome Danielle Santiago Ramos, WHOI Postdoctoral Scholar, to the NIRVANA Labs! Dani will be working with Sune Nielsen (G&G) and Frieder Klein (MC&G) on potassium isotope cycling in subduction zones.