Non-permanent shallow halocline in a fractured carbonate aquifer, southern Italy

Petrella, Emma; Naclerio, Gino; Falasca, Antonio; Bucci, Antonio; Capuano, Paolo; Felice, Vincenzo De; Celico, Fulvio

doi:10.1016/j.jhydrol.2009.04.033

Cited by 20 publications

(24 citation statements)

References 18 publications

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“…3) using the total number of PCR-DGGE profiles did not indicate any stable cluster, with overall similarity ranging from 47% to 87%. This result is in agreement with those obtained in the same aquifer system when comparing microbial communities detected in springand ground-water samples collected once in another compartment (Petrella et al, 2009b …”

Section: Biomolecular Investigationssupporting

confidence: 92%

“…Considering both the hydrogeological features and hydraulic behavior of the studied aquifer system (Celico et al, 2006;Petrella et al, 2007Petrella et al, , 2009bPetrella & Celico, 2013), the results of isotopic investigations and the EC measurements that were conducted during this study, the results of biomolecular analyses support the following conceptual model (Fig. 1D): a.…”

Section: Conceptual Modelsupporting

confidence: 58%

“…This difference might be due to the fact that this system does not behave as the classic karstic aquifers (Naclerio & Celico, 2010). Therefore, as hypothesized by Petrella et al (2009b), bacterioplankton communities in the studied systems can be tentatively used to trace the hydraulic interaction between compartments and then flow-through along the low-permeability fault zones that separate the compartments.…”

Section: Bacterial Migration Through Low-permeability Fault Zonesmentioning

confidence: 92%

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Bacterial migration through low-permeability fault zones in compartmentalised aquifer systems: a case study in Southern Italy

Bucci¹,

Petrella²,

Naclerio³

et al. 2014

IJS

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Section: Biomolecular Investigationssupporting

confidence: 92%

Section: Conceptual Modelsupporting

confidence: 58%

Section: Bacterial Migration Through Low-permeability Fault Zonesmentioning

confidence: 92%

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Bacterial migration through low-permeability fault zones in compartmentalised aquifer systems: a case study in Southern Italy

Bucci¹,

Petrella²,

Naclerio³

et al. 2014

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“…The behaviour of compartmentalized aquifer systems made up mainly of fractured carbonates and subordinately of karstified rocks differs from that of classic karst aquifers, as demonstrated in the present and in previous studies (e.g. Celico et al, 2006;Petrella et al, 2007;Naclerio et al, 2008;Petrella et al, 2008;Petrella et al, 2009), and such differences must be taken into account in designing effective solutions to correctly manage and protect water resources (e.g. Celico et al, 2008 …”

Section: Discussionsupporting

confidence: 51%

A high‐altitude temporary spring in a compartmentalized carbonate aquifer: the role of low‐permeability faults and karst conduits

Petrella

Capuano

Carcione

et al. 2009

Hydrological Processes

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Abstract:The aim of this research was to refine the actual conceptual model related to the activation of high-altitude temporary springs within the carbonate Apennines in southern Italy. The research was carried out through geophysical, hydrogeological, hydrochemical and isotopic investigations at the Acqua dei Faggi experimental site during five hydrologic years.The research demonstrated that, in carbonate aquifers where low-permeability faults cause the aquifer system to be compartmentalized, high-altitude temporary springs may be recharged by groundwater. In such settings, neither surface water infiltration in karst systems nor perched temporary aquifers play a role of utmost importance. The rare (once or a few time a year) activation of such springs is due to the fact that groundwater unusually reach the threshold head that allows the spring to flow. The activation of the studied high-altitude temporary spring also depended on relationships between a low-permeability fault core and a karst system that locally interrupts the low-permeability barrier. In fact, when the hydraulic head did not reach the karst system, the concentrated head loss within the fault core did not allow the spring to flow, because the groundwater entirely flowed through the fault towards the downgradient compartment.

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“…Moreover, biomolecular investigations were also carried out to evaluate the effectiveness of microbial communities as tracers to investigate recharge processes in carbonate aquifers, analyzing the effect of diffuse rainwater infiltration through the topsoil of pyroclastic origin and the underlying carbonate rocks (Petrella et al 2009a).…”

Section: Microbiological Investigationsmentioning

confidence: 99%

Microorganisms as contaminants and natural tracers: a 10-year research in some carbonate aquifers (southern Italy)

et al. 2015

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Limestone aquifers provide the main drinking water resources of southern Italy. Due to cattle grazing and/or manure spreading, these aquifers are often characterized by microbial contamination of groundwater. The aim of this paper is to summarize the results obtained during a 10-year research carried out in experimental field sites in southern Italy, analyzing (1) the influence of the topsoil of pyroclastic origin on the migration of microbial cells from the ground towards the groundwater, and then on the groundwater vulnerability, (2) the influence of the rainfall regime on the breakthrough at the springs, (3) the reliability of thermotolerant coliforms and fecal enterococci as bacterial indicators of microbial contamination, and (4) the effectiveness of microorganisms as natural tracers for some hydrogeological purposes. The results obtained showed that fecal enterococci are a more reliable indicator than thermotolerant coliforms for detecting contamination and that the entity and distribution over time of microbial contamination of fecal origin are influenced by several factors, such as precipitation regime, thermal regime and existence and thickness of the topsoil of pyroclastic origin. Moreover, the migration of a significant amount of bacterial cells through the topsoil and the underlying carbonate rocks allows the utilization of microorganisms as effective natural tracers, to be coupled with other classic tracers to study the recharge and the flow processes. In a broader perspective, these results can be used to optimize the investigations in other hydrogeological scenarios, with emphasis on those where different water types coexist and interact in same aquifer systems

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Non-permanent shallow halocline in a fractured carbonate aquifer, southern Italy

Cited by 20 publications

References 18 publications

Bacterial migration through low-permeability fault zones in compartmentalised aquifer systems: a case study in Southern Italy

Bacterial migration through low-permeability fault zones in compartmentalised aquifer systems: a case study in Southern Italy

A high‐altitude temporary spring in a compartmentalized carbonate aquifer: the role of low‐permeability faults and karst conduits

Microorganisms as contaminants and natural tracers: a 10-year research in some carbonate aquifers (southern Italy)

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