Hydrothermal impact on ocean biogeochemistry
October 27, 2026 @ 15:00 CET · Moderated by Dr. Lise Artigue
The sixth seminar in the 2026 GEOTRACES Early Career Online Seminar Series brought together two perspectives on how hydrothermal activity shapes ocean biogeochemistry, from basin-scale cycles to the imprint of low-temperature venting.
Hydrothermal impacts on basin-scale biogeochemical cycles — Prof. Christopher R. German (Woods Hole Oceanographic Institution, USA)
“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.”
Biogeochemical implications of widespread low-temperature hydrothermal flow — Dr. Laura Moore (University of Victoria, Canada)
“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.”
A recording of the seminar is available on the GEOTRACES YouTube Channel.
For Zoom link information and updates, check the seminar web page.