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(Article of periodic en Anglais - 2012)

Document title

Soil gas degassing during the 2009 L’Aquila earthquake : study of the seismotectonic and fluid geochemistry relation

Authors(s) and Affiliation(s)

VOLTATTORNI N. ; QUATTROCCHI F. ; GASPARINI A. ; SCIARRA A. ;

Abstract

A Mw 6.3 earthquake occurred on April 6, 2009 in the Abruzzo region, close to the city of L’Aquila. A soil gas survey (CO2 and CH4 flux measurements, soil gas measurements and collection) has been carried out in an area of 24 km2 (few kilometers far from L’Aquila city) to investigate the gasbearing properties of local seismogenic faults (Paganica, Bazzano, and Monticchio-Fossa faults) and to locate fracture systems when masked by unconsolidated lithologies. Anomalous values of Rn and CO2 were detected both east of Bazzano fault and in the central part of the investigated area where faults have no surface expression. Highest values of He and CH4 concentrations prevail in the southern sector in correspondence with Onna village located between Fossa and San Gregorio faults. Results of this research provide some clues on the spatial influence of active tectonic on gas migration toward the surface. - (NF)

Source

Article of periodic

published at : Italian Journal of Geosciences / ISSN 2038-1719

Editor : Società Geologica Italiana, Roma - ITALIE (2009)

Millesime : 2012, vol. 131, no3 [pp. 440-447]

Bibliographic references : 1 p.

Collation : 6 fig., 1 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 5205

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.3301/IJG.2012.19

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2013
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