Earthquake-induced variations in the composition of the water in the geothermal reservoir at Vulcano Island, Italy. (Articolo in rivista)

Type
Label
  • Earthquake-induced variations in the composition of the water in the geothermal reservoir at Vulcano Island, Italy. (Articolo in rivista) (literal)
Anno
  • 2000-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/S0377-0273(99)00196-1 (literal)
Alternative label
  • Bolognesi L. (2000)
    Earthquake-induced variations in the composition of the water in the geothermal reservoir at Vulcano Island, Italy.
    in Journal of volcanology and geothermal research; Elsevier, Amsterdam (Paesi Bassi)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Bolognesi L. (literal)
Pagina inizio
  • 139 (literal)
Pagina fine
  • 150 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://dx.doi.org/10.1016/S0377-0273(99)00196-1 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 99 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 12 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • CNR - Istituto di Fisica Atomica e Molecolare (literal)
Titolo
  • Earthquake-induced variations in the composition of the water in the geothermal reservoir at Vulcano Island, Italy. (literal)
Abstract
  • The reservoir water, that has a magmatic origin, showed an oxygen composition of + 1.0 +/- 0.5 parts per thousand delta(18)O during periods without local tectonic earthquakes, and an oxygen composition of + 3.4 +/- 0.5 parts per thousand delta(18)O after the highest-energy seismic activity that occurred recently near the island. A slight increase of the delta(18)O value in the reservoir water was also observed after a low-energy sequence of tectonic earthquakes that occurred at very shallow depth just beneath Vulcano Island. These O-18 variations in the reservoir water are consistent with earthquake-induced increases in the contribution from high-temperature delta(18)O-rich magmatic condensate to the geothermal reservoir, and with subsequent decreases in the delta(18)O value due to O-18 exchanges at the temporarily increased reservoir temperature during reactions between the highly reactive magmatic condensate and the local rocks. Only minor changes in the deuterium composition of the reservoir water occurred with time, as the delta D value in the magmatic condensate released from the magma after major local earthquakes quickly approached the delta D value of the water contained in the geothermal reservoir. Also the chloride concentration in the reservoir water appears to be linked to the contribution from the magmatic fluid. This chloride content seems not to have undergone major changes with time, as it may be buffered by temporary increases in the reservoir temperature up to values >300 degrees C induced by major local earthquakes. This mechanism may possibly occur also in other magmatic-hydrothermal systems. (literal)
Editore
Prodotto di
Autore CNR
Insieme di parole chiave

Incoming links:


Prodotto
Autore CNR di
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi
Editore di
Insieme di parole chiave di
data.CNR.it