http://www.cnr.it/ontology/cnr/individuo/prodotto/ID64026
Hydrostratigraphy of the late Messinian-Quaternary basins in the southern Piedmont (northwestern Italy). (Articolo in rivista)
- Type
- Label
- Hydrostratigraphy of the late Messinian-Quaternary basins in the southern Piedmont (northwestern Italy). (Articolo in rivista) (literal)
- Anno
- 2010-01-01T00:00:00+01:00 (literal)
- Alternative label
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Irace A.; Clemente P.; Piana F.; De Luca D.A.; Polino R.; Violanti D.; Mosca P.; Trenkwalder S.; Natalicchio M.; Ossella L.; Governa M.; Petricig M. (literal)
- Pagina inizio
- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Istituto di Geoscienze e Georisorse; Dipartimento di Scienze della Terra, Università degli Studi di Torino; Regione Piemonte, Direzione Ambiente (literal)
- Titolo
- Hydrostratigraphy of the late Messinian-Quaternary basins in the southern Piedmont (northwestern Italy). (literal)
- Abstract
- An integrated stratigraphic approach has been
adopted to define the 3D hydrostratigraphic regional frame-
work of the fresh-water aquifers of the Savigliano and
Alessandria Basins, in southern Piedmont.
In the present work, the Aquifer Groups represents the \"fun-
damental\" hydrostratigraphic units, since they physically cor-
respond to synthems, that have been recognized both in the
subsurface and outcrops.
Each Aquifer Group is characterized by Hydrogeologic
Units (HU) defined on the basis of lithofacies associations
that display homogeneous hydrogeologic properties (e.g. per-
meability ratio, storage coefficient). Four main typologies of
Hydrogeologic Units have been distinguished, on the basis
of their hydrogeologic characteristics: HU I) unconfined
aquifers, HU II) multi-layered \"discontinuous\" aquifers, HU
III) multi-layered \"continuous\" aquifers, HU IV)
aquitards/aquicludes.
It has been assumed in this work that, due to its peculiar
stratigraphic architecture (i.e. internal stratal organization)
each Aquifer Group has a distinctive response to the regional
groundwater flow system. In this sense, each main type of
Hydrogeologic Unit will present a peculiar and distinctive in-
stance in each single Acquifer Goup. Consequently, the
Aquifers Groups can be subdivided into lower rank hydros-
tratigraphic units, here defined as \"Synthemic Hydrogeologic
Units\". These units, although encompassed in the four main
typologies of Hydrogeologic Units, do inherit the peculiar
architectural properties of the Aquifer Group they belong
to. In this sense, each main type of Hydrogeologic Unit will
present its own instance within the different Aquifer Groups.
Following these criteria, nineteen Synthemic Hydrogeologic
Units, grouped into seven Aquifer Groups were recognized
within the Savigliano and Alessandria Basins.
The reconstruction of the hydrostratigraphic model al-
lowed to portray, for the first time, the geometry and archi-tecture of the Aquifer Groups of the whole upper Messin-
ian-Quaternary successions in southern Piedmont and to re-
construct the regional distribution and characteristics of
potentially exploitable aquifers.
Moreover, the use of stratigraphic constraints (i.e. distri-
bution of depositional systems and lithofacies associations)
led to the reconstruction of the geometry of the fresh-salt
water interface, also in those areas with scarce well data, and
to better estimate the maximum thickness of deep fresh-
aquifers that, up to date, are still unexploited.
The hydrostratigraphic reconstruction here proposed
constitutes a forward step with respect to the previous
knowledge on Piedmont subsurface hydrogeology, and cast
the bases for future development of water exploitation and
water flow modeling. (literal)
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