Interaction between the deep fluids and the shallow groundwaters on Vulcano island (Italy)

Citation
G. Capasso et al., Interaction between the deep fluids and the shallow groundwaters on Vulcano island (Italy), J VOLCANOL, 108(1-4), 2001, pp. 187-198
Citations number
31
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Earth Sciences
Journal title
JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH
ISSN journal
0377-0273 → ACNP
Volume
108
Issue
1-4
Year of publication
2001
Pages
187 - 198
Database
ISI
SICI code
0377-0273(20010815)108:1-4<187:IBTDFA>2.0.ZU;2-6
Abstract
The aim of this work is to study the interactions processes between the flu ids of deep origin and the shallow groundwaters of the Vulcano Porto area. During 1995, 13 well waters were sampled three times (May, July and Novembe r) and analysed for major and some minor elements (B, Br and NH4) and for d issolved gases. The close relationship of these waters with the deep magmat ic source is highlighted by the composition of the dissolved gases. Further more, the areal distribution of dissolved species is controlled mainly by t he gas fluxes from depth and by the presence of a deeper thermal aquifer. T he distribution of major anomalies in the parameters measured in the ground waters, in fact, overlaps the soil gas fluxes distribution that are related to the existence of preferential upflow routes of fumarolic fluids through weak structural lines in the volcanic edifice. (C) 2001 Elsevier Science B .V. All rights reserved.