http://www.cnr.it/ontology/cnr/individuo/prodotto/ID195840
Hydrogeophysical Imaging Of Alluvial Aquifers: Electrostratigraphic Units In The Quaternary Po Alluvial Plain (Italy) (Articolo in rivista)
- Type
- Label
- Hydrogeophysical Imaging Of Alluvial Aquifers: Electrostratigraphic Units In The Quaternary Po Alluvial Plain (Italy) (Articolo in rivista) (literal)
- Anno
- 2012-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1007/s00531-012-0754-7 (literal)
- Alternative label
Mele, M., Bersezio, R., And M. Giudici (2012)
Hydrogeophysical Imaging Of Alluvial Aquifers: Electrostratigraphic Units In The Quaternary Po Alluvial Plain (Italy)
in International journal of earth sciences (1999, Print)
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Mele, M., Bersezio, R., And M. Giudici (literal)
- Pagina inizio
- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
- http://link.springer.com/content/pdf/10.1007%2Fs00531-012-0754-7 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
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- ISI Web of Science (WOS) (literal)
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- Dipartimento Scienze della Terra ''Ardito Desio'',
Universita` degli Studi di Milano, via Mangiagalli 34,
20133 Milan, Italy
CNR-IDPA, via Mangiagalli 34, 20133 Milan, Italy
Dipartimento Scienze della Terra ''Ardito Desio'', Universita`
degli Studi di Milano, via Cicognara 7, 20129 Milan, Italy (literal)
- Titolo
- Hydrogeophysical Imaging Of Alluvial Aquifers: Electrostratigraphic Units In The Quaternary Po Alluvial Plain (Italy) (literal)
- Abstract
- The integration of surface geological and geomorphological information with borehole point-data and
geophysical (e.g., geoelectrical) images of the subsurface
yields spatially consistent representations of alluvial aquifers heterogeneity at different scales, from depositional
systems to basin fills. Such an approach requires a conceptual framework to match the stratigraphic units with
their evidence from ground-based DC resistivity methods
to effectively fill the gaps between sparse borehole data and
to obtain valid representations of sedimentary heterogeneities. Such an approach is applied to characterize two sites
of the Quaternary aquifers of the central Po Plain (Italy),
which represent (1) the middle-upper Pleistocene braided
to meandering river depositional systems sitting on Southalpine crust and (2) their down-current counterparts,
where they are involved by the latest uplift and deformation due to the tectonic activity of the Apennine frontal
thrusts. Electrical resistivity was considered as a proxy of
the litho-textural properties of hydrofacies and their major
hierarchical association at depth and was interpreted
in accordance with the depth-decreasing resolution of
ground-based resistivity methods. Thus, it was possible to
identify the geophysical signature of hydrostratigraphic
units through ''Electrostratigraphic Units'', i.e., sedimentary
volumes identified by resistivity contrasts that spatially
preserve the vertical polarity. Hydrostratigraphy and electrostratigraphy were then joined together through a site-specific relationship between electrical resistivity and hydraulic
conductivity, which takes into account the prevailing process
of current conduction, the litho-textural properties of hydrofacies and the groundwater electrical conductivity. At the
scales of aquifer systems and complexes, this approach
permitted to establish the conceptual framework to match
hydrostratigraphy, electrostratigraphy, average hydrodynamic properties and distribution of heterogeneities. (literal)
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