Posts by Tristan Horner
Paper in press: Modeling the marine barium cycle
I’m excited to share that a new study led by Hengdi Liang, ‘Modeling the global oceanic barium cycle and implications for paleoceanographic proxies,’ is out today in Earth and Planetary Science Letters. As the title suggests, we developed a model of the global oceanic barium cycle and explored what it means for barium-based paleoceanographic proxies.…
Read MoreFarewell, Ichiko!
Today we say goodbye to Ichiko Sugiyama, who wraps up her time with the NIRVANA Lab. Ichiko joined us in late 2022 to study microbial metal demand in the Eastern Tropical Pacific, working jointly with Mak Saito and myself. She sailed on the AT50-10 CliOMZ expedition, where she conducted an impressive number of isotope tracer…
Read MoreTristan tenured!
I’m delighted to share that, earlier today, the President and Director, Peter de Menocal, notified me that my application for tenure at the Woods Hole Oceanographic Institution has been granted. This is a big personal milestone, and I want to take a moment to say how deeply grateful I am; for the guidance of my…
Read MorePaper in press: Treatise on Geochemsitry
I’m pleased to share that our chapter, Tools to trace past productivity and ocean nutrients, has been published in the third edition of the Treatise on Geochemistry. My involvement in this chapter began on a flight to the 2021 AGU Fall Meeting in New Orleans. I happened to be seated near Jesse Farmer, the lead…
Read MoreCongratulations Dr. Ștreangă!
Congratulations to Dr. Iulia-Mădălina Ștreangă, who successfully defended her Ph.D. thesis today! Iulia’s dissertation, Marine iodine biogeochemistry: inorganic speciation, redox dynamics, and organic complexation, is available to download from DSpace@MIT. Well done, Iulia—incredible work and a major milestone!
Read MoreAGU Annual Meeting 2024
Evren Arif (SSF, 2024) is presenting his research at the AGU Annual Meeting this week in Washington, D.C. His poster, ‘Mapping Dissolved Iodide in Seawater: Insights from a Machine Learning-based Climatology’ (Poster OS21H-0677), will be featured in Session OS21H: Trace Element Distributions and Cycling Across Ocean Basins on Tuesday, December 10, from 08:30 to 12:20…
Read MoreLab Writing Retreat 2024
Seven members of the NIRVANA Labs ventured to South Dennis for our annual Lab Writing Retreat. We were once again joined by special guest Laura Motta, the newest hire in the Department of Marine Chemistry & Geochemistry. This year’s venue was the historic Obed Baxter House, White Pillars, built in 1849. Lots of exciting manuscripts…
Read MorePaper in press: Barium in the Red Sea
I’m excited to share that our recent study, led by Kim Mayfield, has been published in Frontiers in Earth Science. In this research, we set out to understand the barium cycle in the Gulf of Aqaba, located in the northern Red Sea. To do this, we collected an extensive set of samples—including aerosols, groundwater, seawater,…
Read MorePaper in press: Constraining the margin organic C flux
We’re excited to share the publication of ‘Distribution and Drivers of Organic Carbon Sedimentation Along the Continental Margins’ in AGU Advances, led by Logan Tegler (Ph.D., 2023). This study explores how organic carbon settles into marine sediments—a major long-term sink for atmospheric carbon dioxide, second only to silicate weathering. Estimating organic carbon sedimentation, especially along…
Read MoreTristan appointed Co-Editor-in-Chief of EPSL
While I typically reserve website updates for celebrating the achievements of NIRVANA Lab team members, today I’m excited to share some news of my own. I’m deeply honored to announce that I have been appointed Co-Editor-in-Chief of Earth and Planetary Science Letters, a leading journal that publishes short-format articles focusing on “physical and chemical processes…
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