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Rapid oxidation of mercury (Hg) at volcanic vents: Insights from high temperature thermodynamic models of Mt Etna's emissions

Abstract:

A major uncertainty regarding the environmental impacts of volcanic Hg is the extent to which Hg is deposited locally or transported globally. An important control on dispersion and deposition is the oxidation state of Hg compounds: Hg(0) is an inert, insoluble gas, while Hg(II) occurs as reactive gases or in particles, which deposit rapidly and proximally, near the volcanic vent. Using a new high temperature thermodynamic model, we show that although Hg in Etna's magmatic gases is almost ent...

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Institution:
University of Oxford
Department:
Oxford, MPLS, Earth Sciences
Role:
Author
More by this author
Institution:
University of Oxford
Department:
Oxford, MPLS, Earth Sciences
Role:
Author
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Journal:
Chemical Geology
Volume:
283
Issue:
3-4
Pages:
279-286
Publication date:
2011-04-22
DOI:
ISSN:
0009-2541
URN:
uuid:6852f9e7-d6be-4962-a314-a5dd0c5d9acc
Source identifiers:
139025
Local pid:
pubs:139025
Language:
English
Keywords:

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