Distribution, Discharge, Geological and Physical–Chemical Features of the Springs in the Turin Province (Piedmont, NW Italy)

Luca, Domenico Antonio De; Masciocco, Luciano; Caviglia, Caterina; Destefanis, Enrico; Forno, Maria Gabriella; Fratianni, Simona; Gattiglio, Marco; Gianotti, Franco; Lasagna, Manuela; Latagliata, Vincenzo; Massazza, Giannetto

doi:10.1007/978-3-319-09054-2_52

Cited by 6 publications

(8 citation statements)

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“…Springs with low discharge (smaller than 1 L/s or few L/s) are generally connected to thin and discontinuous Quaternary deposits. Springs with higher discharge are, instead, linked to significant aquifers corresponding to large and thick landslide bodies or very fractured bedrocks affected by deepseated gravitational slope deformations (DSGSDs) (De Luca et al, 2015, 2019c. Moreover, in alpine areas, locally karstic circuits can exist in calcareous rocks.…”

Section: Study Areamentioning

confidence: 99%

Hydrogeology of the western Po plain (Piedmont, NW Italy)

2020

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This paper describes the hydrogeological map of the western Po Plain, located in Piedmont (north-western Italy). Po plain represents a hydrogeological system of European relevance, and the Piedmont Plain is the most important groundwater reservoir of the Region. The 1:300,000 scale map was realised using previous and new data to update the knowledge of this area. The map provides information about the hydrogeological complexes and their type and degree of permeability, water table levels and depth, piezometric level fluctuation, lithostratigraphic cross-sections, thickness, and percentage of the permeable deposits between 0 and 50 m from the ground surface. All this information is essential to public administrations, stakeholders, researchers, and professionals for defining possible tools for groundwater protection and management and for planning new groundwater exploitation (i.e. municipal drinking water supplies).

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Section: Study Areamentioning

confidence: 99%

Hydrogeology of the western Po plain (Piedmont, NW Italy)

2020

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“…Water is an essential resource, which becomes progressively more important with time considering the increase in water needs of populations and crops. Significant aquifers contained in alluvial plains and valley floors have often been exploited for many years, whereas smaller aquifers hosted in mountainous areas have, until now, been partially known and used [1]. Water reserves in mountainous areas are essentially located in extensive and thick sedimentary non-cohesive bodies (mainly debris, landslide and glacial deposits) and/or in large volumes of intensely fractured and loosened rocks involved in deep-seated gravitational slope deformation (DSGSD) areas [2][3][4].…”

Section: Introductionmentioning

confidence: 99%

“…The Montellina Spring is situated in a DSGSD area on the western side of the lower Dora Baltea Valley ( Figure 1) [1]. The investigated area is located in the Eclogite Micaschist Complex (Astroalpine System, Sesia-Lanzo Zone), formed by a polycyclic basement with a mono-metamorphic cover (Scalaro Unit), both of which show regional foliation developed from alpine eclogite facies metamorphism [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

“…The target of the study was to explain why Montellina Spring (MS) has relatively high discharge with respect to other alpine springs. For example, in the entire Turin Province, only 35 springs have a discharge higher than 10 L/s [1].…”

Section: Introductionmentioning

confidence: 99%

“…More specifically, water resources no longer seem sufficient to cover requirements, and signs of possible conflict between different water users The target of the study was to explain why Montellina Spring (MS) has relatively high discharge with respect to other alpine springs. For example, in the entire Turin Province, only 35 springs have a discharge higher than 10 L/s [1].…”

Section: Introductionmentioning

confidence: 99%

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The Montellina Spring as an Example of Water Circulation in an Alpine DSGSD Context (NW Italy)

Luca

Abdin

Forno

et al. 2019

Water

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Alpine areas, with normally fissured bedrock outcrops, do not typically contain important hydrologic reservoirs, except for small aquifers located in Quaternary sediments. By contrast, mountainous areas affected by deep-seated gravitational slope deformations (DSGSD), especially if covered by glacial sediments, contain large aquifers and are consequently promising for water exploitation. This last geological setting is observed, for example, in the lower Dora Baltea Valley (near the confluence with the Renanchio Basin) in which the Montellina Spring is located and exhibits a very high discharge. A multidisciplinary approach (detailed geological survey of the bedrock and Quaternary cover, as well as hydrogeological research based on tracer tests, hydrochemical analyses, and water balance studies) was used, allowing for a reconstruction of the geological and hydrogeological setting of the investigated area, also considering its environmental implications. The consequent hydrogeological model derives from the coexistence of some factors. In detail, the thick glacial cover, widespread in the intermediate sector of the slope, represents an important aquifer with a slow groundwater flow to the spring. The buried glacial valley floor, hosting this cover, can convey the groundwater from the high Renanchio Basin zone towards the low sector. The loosened bedrock of the low sector, consequent to DSGSD phenomena, favors the concentration of groundwater along the contact with the underlying normal fissured bedrock outcropping at the base of the slope. Finally, the flow until the spring essentially takes place through N100° trend open fractures and trenches. Part of the Montellina Spring discharge is also fed by the low Renanchio Stream, as highlighted by fluorescein tests, essentially using NE-SW oriented open fractures on the bedrock. The results of the investigation on the Montellina Spring can provide some insight regarding the hydrological potential of other alpine areas with a similar geological setting.

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Temperature and discharge variations in natural mineral water springs due to climate variability: a case study in the Piedmont Alps (NW Italy)

Bastiancich

Lasagna

Mancini

et al. 2021

Environ Geochem Health

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In the context of global climate change, understanding the relationships between climate and groundwater is increasingly important. This study in the NW Alps represents the first regional-scale investigation of the groundwater feature variation in mountain aquifers due to climate variability. The analysis of groundwater temperature and discharge in 28 natural mineral water springs and meteorological parameters (rainfall and air temperature) permitted us to evaluate the annual behaviour and possible trends of these parameters during the period from 2001 to 2018. The air temperature showed a positive trend almost everywhere, with a rise of up to 0.03 °C/year. In contrast, only ten springs showed a positive trend for groundwater temperature, but with the smallest rates of increase. Moreover, despite the substantial stability of the rainfall amount, 50% of the analysed springs showed a trend (29 and 21% for positive and negative trends, respectively) with low discharge variations. Finally, cross-correlation analyses proved the close relationship between air and groundwater temperatures, with a time lag between 0 and 3 months, and between spring discharge and air temperature, with a time lag between 1 and 3 months. In particular, spring discharge is closely connected to snow melting in spring and subordinate to rainfall. These results highlight the existing correlations between spring discharge and various meteorological and topographic parameters in the studied mountain area and provide a preliminary framework of the impacts of climatic variability on the availability and temperature of the exploited water resources.

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Distribution, Discharge, Geological and Physical–Chemical Features of the Springs in the Turin Province (Piedmont, NW Italy)

Cited by 6 publications

References 1 publication

Hydrogeology of the western Po plain (Piedmont, NW Italy)

Hydrogeology of the western Po plain (Piedmont, NW Italy)

The Montellina Spring as an Example of Water Circulation in an Alpine DSGSD Context (NW Italy)

Temperature and discharge variations in natural mineral water springs due to climate variability: a case study in the Piedmont Alps (NW Italy)

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