Variation d'origine sismique du flux de chaleur convectif dans La Fossa de Vulcano (Italie)

  • Aubert M
  • Alparone S
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Abstract

Temperature, composition and extent of fumaroles at La Fossa of Vulcano (Italy) have been measured since 1978. Variations are attributed to changing regional tectonic factors, or to changes in magmatic activity. Hydrothermal heat discharge on a hot zone of La Fossa has been measured since 1997. An important increase in this flux is clearly related to a regional seismo-tectonic crisis that occurred in 1998, which opened the volcano's fracture system. The upper part of the aquifer has since cooled, without any apparent effect on the magmatic system below. (C) 2000 Academie des sciences / Editions scientifiques et medicales Elsevier SAS.

Author-supplied keywords

  • Hydrothermal system
  • Local seismicity
  • Volcanism
  • Vulcano

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Authors

  • Maurice Aubert

  • Salvatore Alparone

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