Join us! GEOTRACES Online Seminar #6 – 27 October 15:00 CET
Dear colleagues,
The sixth GEOTRACES Online Seminar, organised by the Early-Career Scientist Committee, will be held on Tuesday, 27 October 2026, from 15:00 to 16:00 CET:
Topic: Hydrothermal Impact on Ocean Biogeochemistry
Speakers: Prof. Christopher R German (Woods Hole Oceanographic Institution, WHOI, USA) and Dr. Laura Moore (University of Victoria, Canada)
Moderator: Dr. Lise Artigue
Flyer
By Zoom: https://geomar-de.zoom-x.de/j/63657733493?pwd=6Uman0pQaKQ56P9SkXoUfz55XqqO7a.1
Meeting ID: 636 5773 3493
Passcode: 651026
Further information on this and upcoming seminars is provided below. Recordings of previous seminars are available on the GEOTRACES YouTube channel or via the following OneDrive link: 2026OnlineSeminars.
We hope to see many of you online!
Best wishes,
GEOTRACES IPO
Seminar detailed information:
Topic: Biogeochemical Cycling of Redox-Sensitive Metals in Oxygen Minimum
Date: October 27th, 15:00 CET
Moderator: Dr. Lise Artigue
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.
Upcoming seminars:
Date/Time: November 24th, 15:00 CET
Topic: Sediment-Water Interface Processes & Boundary Exchange
Moderator: Zhouling Zhang (GEOMAR, Germany)
Speakers: Florian Scholz (University of Hamburg, Germany) & Rhiannon Jones (British Antarctic Survey, UK)
Date/Time: December 15th, 15:00 CET
Topic: Working backwards: How do we know a paleo-proxy works?
Moderator: Layla Creac’h (IFREMER – Centre Bretagne, France)
Speakers: Tristan Horner (Woods Hole Oceanographic Institution, USA) & Matthew Jeromson (University of Canberra, Australia)