Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/506
Authors: | Aiuppa, A.* Federico, C.* Franco, A.* Giudice, G.* Gurrieri, S.* Inguaggiato, S.* Liuzzo, M.* McGonigle, A. J. S.* Valenza, M.* |
Title: | Emission of bromine and iodine from Mount Etna volcano | Journal: | Geochemistry, Geophysics, Geosystems | Series/Report no.: | 8/6(2005) | Publisher: | American Geophysical Union | Issue Date: | 25-Aug-2005 | DOI: | 10.1029/2005GC000965 | URL: | http://www.agu.org/ | Keywords: | bromine and iodine in volcanic gases halogen atmospheric chemistry volcanic degassing volcanic plumes |
Subject Classification: | 01. Atmosphere::01.01. Atmosphere::01.01.07. Volcanic effects 04. Solid Earth::04.08. Volcanology::04.08.01. Gases 04. Solid Earth::04.08. Volcanology::04.08.06. Volcano monitoring |
Abstract: | Constraining fluxes of volcanic bromine and iodine to the atmosphere is important given the significant role these species play in ozone depletion. However, very few such measurements have been made hitherto, such that global volcanic fluxes are poorly constrained. Here we extend the data set of volcanic Br and I degassing by reporting the first measurements of bromine and iodine emissions from Mount Etna. These data were obtained using filter packs and contemporaneous ultraviolet spectroscopic SO2 flux measurements, resulting in time-averaged emission rates of 0.7 kt yr 1 and 0.01 kt yr 1 for Br and I, respectively, from April to October 2004, from which we estimate global Br and I fluxes of order 13 (range, 3â 40) and 0.11 (range, 0.04â 6.6) kt yr 1. Observed changes in plume composition highlight the coherent geochemical behavior of HCl, HF, HBr, and HI during magmatic degassing, and strong fractionation of these species with respect to SO2. |
Appears in Collections: | Article published / in press |
Files in This Item:
File | Description | Size | Format | Existing users please Login |
---|---|---|---|---|
Aiuppa et al., G3 2005.pdf | Main article | 236.48 kB | Adobe PDF | |
Redirect AGU.html | Redirect-AGU | 503 B | HTML | View/Open |
WEB OF SCIENCETM
Citations
77
checked on Feb 10, 2021
Page view(s) 50
275
checked on Apr 17, 2024
Download(s) 50
107
checked on Apr 17, 2024