Flow changes and geochemical anomalies in warm and cold springs associated with the 1992-1994 seismic sequence at Pollina, Central Sicily, Italy

Mariano Valenza, Paolo Madonia, Fausto Grassa, Rocco Favara, Pietro Madonia

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9 Citations (Scopus)

Abstract

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.
Original languageEnglish
Pages (from-to)2411-2430
Number of pages20
JournalPure and Applied Geophysics
Volume164
Publication statusPublished - 2007

All Science Journal Classification (ASJC) codes

  • Geophysics
  • Geochemistry and Petrology

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