Bartolomeo Vigna

Bartolomeo Vigna
Politecnico di Torino | polito · DIATI - Department of Environment, Land and Infrastructure Engineering

About

55
Publications
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515
Citations

Publications

Publications (55)
Article
Full-text available
Can the ensemble smoother with multiple data assimilation be used to predict discharge in an Alpine karst aquifer? The answer is yes, at least, for the Bossea aquifer studied. The ensemble smoother is used to fit a unit hydrograph simultaneously with other parameters in a hydrologic model, such as base flow, infiltration coefficient, or snow meltin...
Article
Speleothems show an array of shapes. Flowstones are commonly tabular sheet-like deposits, which cover cave floors and walls. They can procure detailed information about past hydrogeological conditions through their morphology, geochemical composition and stratigraphic properties, which in turn are related to the climate conditions at the surface. T...
Article
Full-text available
The results of a series of continuous characterizations of physical parameters (flow, temperature, water conductivity) and chemical analyses in water springs fed by karst aquifers located in the Piedmont region (northwestern Italy) are presented in this work. Rock masses in carbonate rocks, characterized by very different hydrogeological situations...
Article
Full-text available
Caves are one of the most important and well-known geological features in the world, an environmental and cultural heritage, as well as an important economic resource for many countries. Their scientific and aesthetic value is often threatened by tourism, which unfortunately exposes them to a series of risks of degradation and, sometimes, irreparab...
Conference Paper
Over the past decades, interest for the underground karst environments has grown remarkably, not only from the scientific viewpoint, but also from an economic perspective. The so-called “show caves” are caves open to the public for touristic purposes, managed by a governmental or commercial organization. The numbers of visitors (up to 500,000/year/...
Article
Full-text available
This work describes the geochemical and hydrogeological characteristics of Santa Cesarea Terme, an active sulfuric acid speleogenetic system located along the Adriatic coastline (Apulia, southern Italy). It represents a very peculiar site, where rising thermal and acidic waters mix with seawater creating undersaturated solutions with respect to CaC...
Article
The effects of an extreme storm (501 mm of rainfall in less than five days) were monitored in an alpine show cave to assess the characteristics of its aquifer unsaturated and saturated zones. The selected cave, Bossea (SW Piedmont, Italy), is an excellent test site for hydrological investigation of karst systems, because it hosts an underground kar...
Article
Full-text available
Fetida Cave is an active sulfuric acid cave influenced by seawater, showing abundant microbial communities that organize themselves under three main different morphologies: water filaments, vermiculations and moonmilk deposits. These biofilms/deposits have different cave distribution, pH, macro-and microelement and mineralogical composition, carbon...
Article
Geological surveys, structural mapping, and thin section analysis helped to unravel the speleogenesis and water circulation in the Bossea cave (Northern Italy), an unconventional karst system at the contact between carbonates and underlying insoluble rocks. The surveys within the cave and in the surrounding surface outcrops revealed a complex struc...
Article
Full-text available
The Tertiary Piedmont Basin (TPB) is located in southern Piedmont (NW Italy) and consists of Eocene to Pleistocene sediments. The basin has been extensively analysed since the end of 19th century and represents one of the most studied Italian sedimentary basins. On the basis of these studies, many authors have already presented exhaustive basin-sca...
Article
The Su Gologone karst spring has been recently investigated to assess how the karst aquifer would react in possible different meteorological conditions. The aim of the project is to develop a flexible and appropriate approach for its karst groundwater exploitation both taking into account the special features of the Supramonte karst landscape and w...
Article
Full-text available
The geological map of Piemonte Region (Italy) is a graphic representation of the geology of the region, grounded on a large geodatabase, that can be also browsed as an interactive scalable map (GeoPiemonte Map) using a WebGIS application. The Map, produced at 1:250,000 scale, is the first original release of the ‘GeoPiemonte Map’ project. The geolo...
Article
Limestone massifs with a high density of dolines form important karst aquifers in most of the Alps, often with groundwater circulating through deep karst conduits and water coming out of closely spaced springs with flow rates of over some cubic meters per second. Although several hydrogeological studies and tracing experiments were carried out in m...
Article
In Pliocene sedimentary successions of northern and central Italy, fossil swamp forests are relatively common. Most of them pertain to the Piacenzian stage and show a dominance of the conifer Glyptostrobus europaeus as an arboreal element. A new fossil forest that recently cropped out at Fossano in the Piedmont region represents the first Zanclean...
Chapter
Full-text available
Piedmont (N-Italy) is one of Italy’s regions where Messinian gypsum outcrops most extensively. Some gypsum caves have been explored in the past, but no detailed speleogenetic studies have been carried out. The discovery of unexpected large underground voids in a gypsum quarry near Moncalvo has demonstrated the presence of intrastratal karst systems...
Conference Paper
Full-text available
Bossea Cave is located in southern Piedmont (N Italy) and has a total development of more than 2 km. It is home of an underground scientific laboratory that monitors cave air, radon concentration, cave fauna, and subterranean waters. The cave hosts an important subterranean river that follows, at least in its initial portion, the tectonic contact b...
Conference Paper
Full-text available
The Bossea Cave is a show cave with an important underground river located in southern Piedmont (NW Italy). This cave was opened to public in 1874, and since the 1970s it hosts an underground laboratory for the monitoring of the subterranean water flow. This laboratory, located inside the cave environment, has been equipped over the years with incr...
Conference Paper
Full-text available
The Su Gologone karst spring has been recently investigated to assess how the karst aquifer would react in possible different meteorological conditions. The aim of the project is to develop a flexible and appropriate approach for its karst water exploitation both taking into account the special features of the Supramonte karst landscape and without...
Conference Paper
Full-text available
Abstract The Alburni Massif is the most important karstic area in southern Italy and It contains about 250 caves. Most of these caves are located on the plateau, between 1500 m a.s.l. and 700 m a.s.l., and only a few reach the underground streams that feed the springs and the deep aquifer. The main springs are Grotta di Pertosa-Auletta (CP1) and Au...
Article
Full-text available
Although outcropping rarely in Italy, evaporite (gypsum and anhydrite) karst has been described in detail since the early 20 th century. Gypsum caves are now known from almost all Italian regions, but are mainly localised along the northern border of the Apennine chain (Emilia Romagna and Marche), Calabria, and Sicily, where the major outcrops occu...
Article
Full-text available
A Messinian succession containing gypsum beds crops out in northern Italy, mainly in Piedmont and along the northern flank of the Apennine mountains in Emilia-Romagna. These gypsum bodies have been extensively quarried at the surface, in outcrops, and through underground quarries. In Emilia-Romagna these gypsum outcrops can be rather extensive, sev...
Article
To assess spring vulnerability level, the vulnerability estimator for spring protection areas (VESPA) index has been proposed. The VESPA index method is based on the joint use of discharge, electrical conductivity, and temperature data, measured at the spring location. In this paper the VESPA index method has been examined through the analysis of o...
Poster
Full-text available
The Alburni Mts is the most important karst area of the southern Apennines, with a surface area of over 400 km2, composed of a 1500 m thick Mesozoic to Cenozoic carbonate sequence, forming a southward dipping monocline, locally overlain by Tertiary flysch units trapped in half-graben basins and bordered by low permeability Miocene units. The entire...
Poster
Full-text available
An important karst aquifer lies below the Cansiglio-Cavallo plateau, a limestone massif located on the border between the regions of Veneto and Friuli-Venezia Giulia (northeastern Italy). According to few existing hydrogeological studies, the massif hosts a mature karst system characterized by an high density of dolines and swallow holes on the sur...
Article
Spring water resources are an irreplaceable source of drinking water supply and therefore mustbe adequately protected in terms of quality and quantity. The assessment of an aquifer’s vulnerability to pollution is the key stage for the sizing of protection areas. The information regarding the type of aquifer and its behavior is rather poor and, with...
Article
The hydrogeological characteristics of some springs supplied by high-mountain carbonate rock aquifers, located in the south of Piedmont, in Italy, are presented in this work. The aquifers have different geological-structural conditions, including both deep and superficial karstification. Their catchment areas are located in a typical Alpine context...
Conference Paper
Full-text available
In the framework of the Project LIFE+ 08NAT/IT/000369 “GYPSUM” a monitoring campaign by means of “STS Datalogger DL/N 70” of seven gypsum karst springs of Emilia Romagna region has been carried out. The variations of electric conductivity (mS/cm), temperature (°C) and water level (mH2O) measured in these springs give useful information on the hydro...
Article
The study of engineering problems in karst is a rather complex subject involving rock masses characterized by patterns of large karst development and different fields of engineering-geology. This work analyzes this important issue multidisciplinary issue in 3 aspects: the interactions between the excavation of underground works and karst aquifers,...
Article
The work illustrates the importance of monitoring in the hydrogeological field, in particular for studies concerning tapping and utilization of spring resources. First, it is mentioned the equipment used to monitor the principal parameters for an aquifer study (mutiparametric data-logger and pluviographs). Then it is described "natural tracers" and...
Conference Paper
Full-text available
Although hypogene cave systems have been described since the beginning of the XXth century, the importance of ascending fluids that acquired their aggressiveness from in-depth sources in speleogenesis has been fully realized only in the last decades. Aggressiveness of waters can be related to carbonic and sulfuric acids and the related corrosion-di...
Article
Full-text available
The multidisciplinary research project “PROGEO-Piemonte” aims to achieve a new conceptual and operational discipline in the management of the geological heritage of the Piemonte Region. To this end, an itinerary is proposed to illustrate the most significant steps in the geological evolution through time of the stratigraphic successions exposed in...
Chapter
Full-text available
Many quarries for the extraction of gypsum are located in the hills of the Monferrato area (cen-tral eastern Piedmont). Close to the village of Moncalvo, Asti Province, a subterranean quarry of more than 20 km long is present. During the excavations a fracture from which water gushed at a pressure of 3 atm has been intercepted in 2005. The undergro...
Article
Widespread plane slope failures have occurred in the hilly Langhe region (NW Italy) over the past two centuries and more recently in November 1994. The 1994 event caused the deaths of 20 people and major damage to properties. This paper is a description of the landslides that occurred in connection to flexural slip. The causes of the phenomena are...
Article
The delineation of groundwater protection zones around springs requires the assessment of the spring vulnerability, aquifer properties, and preferential infiltration zones in the recharge area. We propose the use of the Vulnerability Estimator for Spring Protection Areas (VESPA) index to quantify spring vulnerability. The VESPA index is based on a...
Article
Full-text available
Problem statement: The analysis of the relationships among the different hydrogeological Units and the assessment of groundwater quality are fundamental to adopt suitable territorial planning measures aimed to reduce the potential groundwater pollution especially in agricultural regions. In this study, the characteristics of groundwater dynamics an...
Article
Full-text available
In the morning of February 15th 2005, during excavation works in an underground gypsum quarry at Moncalvo (Monferrato area, Asti, Northern Italy), a water-bearing fracture was intercepted at level 134 m a.s.l. During the night a large amount of water (approximately 60,000 m3) and mud invaded the quarry tunnels reaching a height of 139 m a.s.l. the...
Article
Full-text available
During the realisation of underground excavations in gypsum bedrock there is a possibility of intercepting large karst voids that can be completely filled with water under a considerable hydraulic pressure. The casual breaching of such voids can cause sudden and abundant water inrushes with consequences concerning safety of the excavation area and...
Article
Full-text available
The study concerns the hydrogeologic setting of a vast portion of land, of about 1000 km2, between the Poirino Plateau, the thalweg of the Tanaro River and the hills between the towns of Bra and Asti. The stratigraphic framework of the Messinian-to-Pleistocene succession of this area has recently been redefined on the basis of a multidisciplinary s...
Conference Paper
Full-text available
Evaporite rocks (mainly gypsum) crop out in many European regions and normally display a wide variety of both surface and underground dissolution landforms. On the contrary, when evaporite rocks are overlain by an even thin layer of more or less permeable mate-rial (sands, gravels etc.) the absence of turbulent flow of the percolating water does no...
Article
Full-text available
In the Tertiary Basin of Piedmont (Northern Italy) a 100-150 m thick Messinian sedimentary succession crops out, composed of pre-evaporitic clays, gypsum beds and post-evaporitic lacustrine-marine tine-grained sediments. In the Monferrato area the thickness of the evaporite sequence is highly variable (0-140 m) due to an important erosion surface f...
Article
Full-text available
Gypsum is an important raw material for constructions and other industrial sectors. In Piedmont (NW Italy), main gypsum bodies are located in the Monferrato area, where large open pits and underground quarries are present. The gypsum-bearing formation outcropping in this area shows typical geological, structural, and hydrogeological features, which...
Article
Full-text available
The study of an aquifer system is very important, but also very complicated because of the high temporal and spatial variabilities of a system and because of the phenomena that are at play within the system. It is from these problems that the necessity arises of finding methods that are able to extend point knowledge to an entire area, while mainta...
Conference Paper
Full-text available
Lo studio della successione Plio-Pleistocenica del Bacino Terziario Piemontese, relativo al settore compreso tra la pianura cuneese, le colline del Roero, fino al margine meridionale dell'area torinese, è stato condotto mediante l’integrazione dei rilevamenti geologici di superficie con i dati di sottosuolo di proprietà ENI Divisione Agip (rilievo...
Chapter
The Cengio sandstone member of the Tertiary Piedmont Basin in northwestern Italy has a conservatively estimated volume of 2.5 to 3 km3 (length: 6.4 km; width: 4.8 km; thickness: 170 m). It is interpreted as a sandstonerich submarine fan deposit. The Cengio member consists of eight tabular depositional sandstone lobes that are 5- to 25-m thick. Thes...
Article
The Cengio sandstone member of the Tertiary Piedmont Basin in northwestern Italy has a conservatively estimated volume of 2.5 to 3 km3 (length: 6.4 km; width: 4.8 km; thickness: 170 m). It is interpreted as a sandstone-rich submarine fan deposit. The Cengio member consists of eight tabular depositional sandstone lobes that are 5- to 25-m thick. The...
Article
Full-text available
Since 1982 the Bossea Cave has been equiped for a continuous study of the flow discharge of a peculiar karstic system, where a limestone complex is supported and surrounded by basement rocks (quarzites and porphyroides). Dye tracer tests and hydrogeochemical analysis made possible to understand the behaviour of the system in different periods of th...
Article
Full-text available
In the territory of Monregalese there are a number of karst systems very important for their groundwater resources. Within the study of the whole area, has been evidentiated the importance of the underground scientific station of the Bossea cave. The hydrostructure of the Bossea system has been identified and controlled via numerical model. The dis...

Projects

Projects (4)
Project
The objective of this project is to monitor and understand the dynamics of karst systems for karst environments conservation and water resources protection.