A microtremor survey to define the subsoil structure in a mud volcanoes area: the case study of Salinelle (Mt. Etna, Italy)

A microtremor survey aiming to obtain information on subsoil structure was performed in the lower southwestern Etnean flank (Sicily, Italy). The area is characterized by emissions of muddy and salty water which create specific pseudo-volcanic edifices. Recording sites were both randomly selected in...

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Bibliographic Details
Published in:Environmental earth sciences 2016-08, Vol.75 (15), p.1, Article 1140
Main Authors: Panzera, Francesco, Sicali, Simona, Lombardo, Giuseppe, Imposa, Sebastiano, Gresta, Stefano, D’Amico, Sebastiano
Format: Article
Language:English
Subjects:
Analysis
Biogeosciences
Earth and Environmental Science
Earth Sciences
Environmental Science and Engineering
Geochemistry
Geology
Hydrology/Water Resources
Noise
Original Article
Soils
Studies
Subsoils
Surface acoustic waves
Terrestrial Pollution
Volcanoes
Volcanology
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Summary:A microtremor survey aiming to obtain information on subsoil structure was performed in the lower southwestern Etnean flank (Sicily, Italy). The area is characterized by emissions of muddy and salty water which create specific pseudo-volcanic edifices. Recording sites were both randomly selected in the area and along two profiles. Horizontal-to-vertical noise spectral ratio, polarization and surface wave prospecting techniques were used. The spectral ratios results set into evidence different frequency ranges that appear interesting to infer information on the subsoil structure. The depth of the hydrocarbon reservoir was inferred through 1D modeling, by using the information coming from the literature and experimental surveys. Moreover, a strongly directional effect suggests the existence of a NNW-SSE-oriented mud feeding dike.
ISSN:1866-6280
1866-6299
DOI:10.1007/s12665-016-5974-x