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http://hdl.handle.net/2122/11039
Authors: | Aiuppa, Alessandro* Giudice, Gaetano* Liuzzo, Marco* Tamburello, G.* Allard, P.* Calabrese, S.* Chaplygin, I.* McGonigle, A.J.S.* Taran, Y.* |
Title: | First volatile inventory for Gorely volcano, Kamchatka | Journal: | Geophysical Research Letters | Series/Report no.: | /39 (2012) | Issue Date: | 2012 | DOI: | 10.1029/2012GL051177 | Subject Classification: | 04.08. Volcanology | Abstract: | We report here the very first assessment of volatile flux emissions from Gorely, an actively degassing volcano in Kamchatka. Using a variety of in situ and remote sensing techniques, we determined the bulk plume concentrations of major volatiles (H2O 93.5%, CO2, 2.6%, SO2 2.2%, HCl 1.1%, HF 0.3%, H2 0.2%) and trace-halogens (Br, I), therefore estimating a total gas release of 11,000 tonsday1 during September 2011, at which time the target was noneruptively degassing at 900C. Gorely is a typical arc emitter, contributing 0.3% and 1.6% of the total global fluxes from arc volcanism for CO2 and HCl, respectively. We show that Gorely’s volcanic gas (H2O/SO2 43, CO2/SO2 1.2, HCl/SO2 0.5) is a representative mean end-member for arc magmatism in the north-west Pacific region. On this basis we derive new constraints for the abundances and origins of volatiles in the subduction-modified mantle source which feeds magmatism in Kamchatka |
Appears in Collections: | Article published / in press |
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File | Description | Size | Format | |
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First volatile inventory for Gorely volcano, Kamchatka.pdf | 619.01 kB | Adobe PDF | View/Open |
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