6533b833fe1ef96bd129b82a
RESEARCH PRODUCT
Flow changes and geochemical anomalies in warm and cold springs associated with the 1992-1994 seismic sequence at Pollina, Central Sicily, Italy
Paolo MadoniaRocco FavaraFausto GrassaMariano Valenzasubject
geographygeography.geographical_feature_categoryWater flowEarthquake predictionAquiferInduced seismicityCrustal stressGeophysicsGeochemistry and PetrologyPetrologyGroundwaterGeologySeismologyEarthquake Prediction Flow Change Geochemical Parameter Geochemical Anomaly Crustal Stressdescription
During a three-year discontinuous geochemical monitoring of some warm springs and cold discharges located in central-northern Sicily, some hydro-geochemical changes were observed. Excluding a possible related to a moderate seismic activity were accidentally identified. The observed anomalies showed amplitudes that were modulated by the different geometries and volumes of the feeding aquifers. A poroelastic aquifer contraction, a shaking-induced dilatancy theory as well as seismogenetic-induced changes in the properties of the aquifers have been proposed as possible mechanisms for the water flow and hydro-geochemical changes. These preliminary results could be used to design a monitoring network aimed at surveilling the seismic activity of the studied area from a geochemical standpoint.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2007-12-01 |