Posts by Tristan Horner
Congratulations Maureen!
Congratulations to Maureen Auro, who today was promoted to Research Associate III!
Read MorePaper in press: Barium-isotopic mass balance of subduction zones
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.,…
Read MorePaper in press: Oceanic oxygen dynamics during the Ediacaran
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…
Read MoreWelcome Dani!
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.
Read MorePaper in press: Observing oxidation of iodide
Study led by Dalton Hardisty published in Chem. Geol. reporting direct evidence of iodide oxidation under marine-analogue conditions, made possible by the development of a novel, high-sensitivity MC-ICP-MS method. Full citation: Hardisty, D. S., Horner, T. J., Wankel, S. D., Blusztajn, J., & Nielsen, S. G. (2020). Experimental observations of marine iodide oxidation using a…
Read MoreCongratulations Ann!
Congratulations to Ann Dunlea, who today starts her new position as Assistant Scientist in the Department of Marine Chemistry & Geochemistry at Woods Hole Oceanographic Institution.
Read MoreNIRVANA in Arizona
Logan Tegler is at the 2019 Geological Society of America Annual Meeting in Phoenix presenting her research exploring primary productivity before the Great Oxidation Event.
Read MoreCongratulations Liz!
Congratulations to Liz King, who today starts her new position as Program Manager for Environmental Chemistry at the Army Research Office.
Read MoreWelcome Iulia!
We’re pleased to welcome Iulia-Madalina Streanga, MIT–WHOI Joint Program Student, to the NIRVANA Labs!
Read MorePaper in press: Barium in bamboo corals
Study co-led by Ben Geyman and Jamie Ptacek published in Earth Planet. Sci. Lett. assessing the utility of deep-sea bamboo corals from the northeast Pacific to record ambient barium-isotopic chemistry. Full citation: Geyman, B. M., Ptacek, J. L., LaVigne, M., & Horner, T. J. (2019). Barium in deep-sea bamboo corals: Phase associations, barium stable isotopes,…
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