GEOTRACES Online Seminar Series – #6 Hydrothermal Impact on Ocean Biogeochemistry
October 27 All day
The GEOTRACES Online Seminar Series is an initiative led by the Early Career Scientist (ECS) committee, held on a monthly basis. It aims to foster scientific exchange across the GEOTRACES community and beyond by bringing together senior scientists and early-career researchers around shared themes in trace element and isotope biogeochemistry.
Seminar format:
Each seminar will focus on one coherent topic and feature two connected talks:
– A senior scientist providing synthesis, context, and big-picture framing
– An early-career scientist presenting new data, methods, or emerging perspectives
Schedule:
The series will run monthly from April to November 2026 (with a break in July), with seminars planned for the last Tuesday of each month. Plus, an end-year special seminar around mid-December.
Seminars will be held at either 09:00 CET/CEST or 15:00 CET/CEST, depending on the speakers’ locations, to facilitate participation across different regions. Each seminar will last about one hour.
Platform: Zoom
A single recurring link will be used for all seminars: click here to access the seminar.
If needed, you can also join manually using: Meeting ID: 636 5773 3493 / Passcode: 651026
Upcoming seminar:
Date/Time: October 27th, 15:00 CET
Topic: Hydrothermal Impact on Ocean Biogeochemistry
Moderator: Lise Artigue
Speakers: Christopher German (Woods Hole Oceanographic Institution, USA) & Laura Moore (University of Victoria, Canada)
Talk 1: Hydrothermal Impacts on Basin-Scale biogeochemical cycles
Prof. Christopher R German (Woods Hole Oceanographic Institution, WHOI, USA)
Abstract: The first global-scale study of ocean biogeochemical cycles (GEOSECS) concluded just before the first seafloor hydrothermal vents were discovered in 1977. For the next several decades, it was assumed that hydrothermal circulation in the deep dark ocean might only make minor, highly localized, contributions to global biogeochemical TEI cycles. Since the advent of the international GEOTRACES program that perspective has been revolutionized. I will discuss how our findings from GEOTRACES sections and, more recently, some GEOTRACES-inspired process studies, have helped re-shape our thinking.
Talk 2: Biogeochemical implications of widespread low-temperature hydrothermal flow
Dr. Laura Moore (University of Victoria, Canada)
Abstract: In this talk, I will highlight advances in detecting low-temperature hydrothermal flow and discuss the unique biogeochemical imprint of these systems on the water column.
For more information and updates, check the seminar web page.
