Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/2483
AuthorsD'Alessandro, W.* 
Brusca, L.* 
Kyriakopoulos, K.* 
Rotolo, S.* 
Michas, G.* 
Minio, M.* 
Papadakis, G.* 
TitleDiffuse and focused carbon dioxide and methane emissions from the Sousaki geothermal system, Greece
Issue Date2006
Series/Report no./ 33 (2006)
DOI10.1029/2006GL025777
URIhttp://hdl.handle.net/2122/2483
Keywordscarbon dioxide
methane emissions
geothermal system,
Subject Classification03. Hydrosphere::03.04. Chemical and biological::03.04.06. Hydrothermal systems 
AbstractWe report first data on chemical composition of the gas emitted by the geothermal system of Sousaki, Greece. Gas manifestations display typical geothermal gas composition with CO2 as the main component and CH4 and H2S as minor species. Soil gas composition derives from the mixing of two end-members (atmospheric air and geothermal gas). Soil CO2 fluxes range from<2 to 33,400 g m 2 d 1. The estimated diffuse output of hydrothermal CO2, estimated for an area of 0.015 km2, is about 630 g s 1, while a tentative estimation of CH4 diffuse output gave a value of about 1.15 g s 1. Point sources accounted for lower flux values of 26 g s 1 of CO2, 0.1 g s 1 of CH4 and 0.02 g s 1 of H2S.
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