Hydrothermal Vents & Megaplumes
Date: 05/12/15 7:00 PM Eastern - 05/12/15 8:00 PM Eastern
Location: Online

Trace metals, such as iron, can travel through the earth's crust and spew into the ocean in gigantic "megaplumes" from hydrothermal vents. These elements are utilized close to the vent sites by organisms at the sea floor who do not require light - but may also be carried for miles away from the vents. This webinar will investigate what is being uncovered about the journey of iron around the globe.

Webinar Archive

GEOTRACES Webinar Series
Seawater's composition reflects our planet’s history, along with traces of human impacts. The chemistry of trace elements - found in such small concentrations that they can be difficult to detect - can be studied to uncover the past, present and the future of the ocean and life within it.

Using rigorous methods to ensure measurements are both accurate and consistently collected, the GEOTRACES program has mapped the large-scale distribution of trace elements (such as iron, lead, zinc, and cobalt) across the world’s oceans.

This four-part GEOTRACES webinar series will focus on several trace elements and what they can tell us about biogeochemical processes, the carbon cycle, and climate. Nine scientists, each studying a unique facet of the ocean’s chemistry, will share their work and the importance of researching these rare and vital “clues” from the ocean.

Jessica Fitzsimmons 

Jessica Fitzsimmons is an assistant professor at Texas A&M University. She received a Ph.D. in chemical oceanography from MIT/WHOI and a B.A. in chemistry from Boston University. The Fitzsimmons Lab studies the distribution, physicochemical state, and isotope ratios of trace metals in seawater in order to better understand the cycles and biological usage of metals in the water column.

Brandy Toner 

Brandy Toner is an associate professor in the Department of Soil, Water, and Climate at the University of Minnesota. She holds a Ph.D. in environmental science and policy management and an M.S. in civil and environmental engineering, both from the University of California, Berkley. Her research addresses chemical and biological processes that result in the cycling of metals in the environment.

Other Webinars in this Series
An Introduction to GEOTRACES
Oxygen Minimum Zones
Nutrients in the Open Ocean

Contact Name: Carla Lauter
Contact Phone: (207) 563-8175
Contact Email:

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