Events

Tuesday, February 20, 2018 - 1:00pm to 2:00pm
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HUCE Seminar Room 440, 26 Oxford St., Cambridge

Mercury Stable Isotope Biogeochemistry: Exploration, Application, and Opportunities

 Jeroen Sonke, Géosciences Environnement Toulouse laboratory, CNRS, will reflect on nearly two decades of modern Hg isotope exploration and how it is now giving way to hypothesis-driven studies and novel applications to challenging problems in Hg science.

2019 will mark the 100th anniversary of the discovery of Hg stable isotopes by Sir Francis Aston. Early attempts in the 1920s to detect variations in the Hg isotope abundances of natural Hg by precise density measurements were unlucky. The field had to await the 21st century for the first modern mass spectrometric evidence for large (10 per mil) mass dependent and mass independent Hg isotope fractionation. In this presentation, I will reflect on nearly two decades of modern Hg isotope exploration. Studies in the fields of biogeochemistry, atmospheric chemistry, and paleogeochemistry will be highlighted. Exploration is now giving way to hypothesis-driven studies and novel applications to challenging problems in Hg science; I will briefly discuss breakthroughs in our understanding of atmospheric Hg deposition pathways.

 

Research Areas: 

Harvard University
Center for the Environment

Address: 26 Oxford Street, 4th Floor, Cambridge
Email: huce@environment.harvard.edu
Phone: (617) 495-0368

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