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EARTHSC 8988: Allyson Tessin - Rusty sinks (and sources) in (sub-)Arctic continental margin settings 

Tessin
February 14, 2025
1:45 pm - 2:45 pm
Mendenhall Laboratory Room 291

Host: Alex Michaud

The Arctic is experiencing some of the fastest and most dramatic changes on Earth in response to human-caused carbon dioxide emissions, including rapid reduction of sea ice, retreat of glaciers, and changing ocean circulation patterns. These changes are fundamentally re-organizing Arctic marine carbon and nutrient cycles.  Iron (Fe) cycling within these sensitive Arctic environments is important because Fe plays a key role as a bio-limiting nutrient, a terminal electron acceptor for respiration, and it can control other biogeochemical cycling. Modern benthic studies and paleo-oceanographic reconstructions provide key information about Fe cycling in the modern and during past climate perturbations. 

 

Zoom Link: https://go.osu.edu/ses_seminar  Password: 080817

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