http://www.cnr.it/ontology/cnr/individuo/prodotto/ID287542
Fracture permeability and water-rock interaction in a shallow volcanic groundwater reservoir and the concern of its interaction with the deep... (Articolo in rivista)
- Type
- Label
- Fracture permeability and water-rock interaction in a shallow volcanic groundwater reservoir and the concern of its interaction with the deep... (Articolo in rivista) (literal)
- Anno
- 2014-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1016/j.jvolgeores.2014.07.017 (literal)
- Alternative label
La Felice S.[1], Montanari D.[1], Battaglia S.[1], Bertini G.[1], Gianelli G.[1] (2014)
Fracture permeability and water-rock interaction in a shallow volcanic groundwater reservoir and the concern of its interaction with the deep...
in Journal of volcanology and geothermal research; Elsevier, Amsterdam (Paesi Bassi)
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- La Felice S.[1], Montanari D.[1], Battaglia S.[1], Bertini G.[1], Gianelli G.[1] (literal)
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- http://www.journals.elsevier.com/journal-of-volcanology-and-geothermal-research/ (literal)
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- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- [1] Institute of Geosciences and Earth Resources, Italian National Research Council (CNR), Pisa, Italy (literal)
- Titolo
- Fracture permeability and water-rock interaction in a shallow volcanic groundwater reservoir and the concern of its interaction with the deep... (literal)
- Abstract
- The study of core samples and in-hole data of a 545 m deep well drilled in Mt. Amiata extinct volcano allowed a better characterization of the shallow volcanic reservoir, which is exploited for domestic utilization. The new discovery is that: 1) the water table level is at a depth of 302 m b.g.l. (783 m a.s.1.), in agreement with recent magnetotelluric surveys, and in disagreement with previous hydrogeological models; 2) there is no evidence of present or past interaction with geothermal fluids, the alteration minerals being present only in fractures within the volcanic rocks and indicating fluids of low temperature and relatively low pH due to gas inlets in the volcanic reservoir: and 3) the volcanic reservoir is characterized by fracture permeability, as shown by the fracture system along the well. On the base of these new data the previous geological and hydrogeological models of Mt. Amiata should be revised. In particular, the hypothesis of a catastrophic lowering of the water table in a short time span is unlikely. (C) 2014 Elsevier B.V. All rights reserved. (literal)
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