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2 results on '"Gallese, B"'

1. Uranium groundwater anomalies at LNGS: From the neutron flux background to the geodynamic processes.

Author

PLASTINO, W., LAUBENSTEIN, M., APRILI, P., BALATA, M., BELLA, F., CARDARELLI, A., GALLESE, B., IOANNUCCI, L., DE VINCENZI, M., NISI, S., and RUGGIERI, F.

Subjects
GEODYNAMICS, GROUNDWATER, URANIUM, SPATIAL variation, LABORATORIES
Abstract

Monitoring of chemical and physical groundwater parameters has been carried out worldwide in seismogenic areas with the aim to test possible correlations between their spatial and temporal variations and strain processes. It is shown in this paper that uranium groundwater anomalies, which were observed in cataclastic rocks crossing the underground Gran Sasso National Laboratory (LNGS), can be used as a possible strain meter in domains where continental lithosphere is subducted. Moreover, whereas at the Gran Sasso National Laboratory only the natural radioactivity in the rock, the concrete, as well as the induced part coming from interaction of cosmic ray muons with the rock or the detector materials itself were considered as possible sources for the neutron flux background, the water-rock interaction and its spatial-temporal variation induced by the hydrological pattern of the Gran Sasso aquifer must be taken into account. Water must be considered not only as moderator in concrete, but also as additional source for neutron flux modulation due to its variable concentration and its radioactivity. [ABSTRACT FROM AUTHOR]

Published
2012
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2. Uranium, radium and tritium groundwater monitoring at INFN-Gran Sasso National Laboratory, Italy

Author

Matthias Laubenstein, Wolfango Plastino, Marta Ciarletti, Massimiliano De Deo, Lorenzo Copia, Benedetto Gallese, M. Balata, Francesco Bella, Antonella Peresan, A Cardarelli, Stefano Nisi, L. Ioannucci, Pavel P. Povinec, Plastino, W., Laubenstein, M., Nisi, S., Peresan, Antonella, Povinec, P. P., Balata, M., Cardarelli, A., Ciarletti, M., Copia, L., De Deo, M., Gallese, B., Ioannucci, L., Plastino, Wolfango, Laubenstein, M, Nisi, S, Peresan, A, Povinec, Pp, Balata, M, Bella, F, Cardarelli, A, Ciarletti, Marta, Copia, Lorenzo, De Deo, M, and Gallese, B

Subjects
geography, geography.geographical_feature_category, Water table, Health, Toxicology and Mutagenesis, Radiochemistry, Public Health, Environmental and Occupational Health, Geochemistry, chemistry.chemical_element, Radon, Aquifer, Environmental radioactivity Groundwater Uranium Radium Tritium L’Aquila earthquake, Uranium, Pollution, Analytical Chemistry, Radium, Nuclear Energy and Engineering, chemistry, Environmental radioactivity, Radiology, Nuclear Medicine and imaging, Spectroscopy, Groundwater, Geology, Aftershock
Abstract

Uranium groundwater anomalies, which were observed in cataclastic rocks crossing the underground Gran Sasso National Laboratory before the L’Aquila earthquake (April 6th, 2009), have been studied versus radium and tritium contents. The radionuclide analysis supports the role of endogenic fluid dynamics for uranium content in groundwater rather than percolation processes, due to meteoric events occurring above the water table of the Gran Sasso aquifer. The uranium anomalies represent a key geochemical signal of a progressive increase of deep fluids fluxes at middle-lower crustal levels associated with the geodynamics of the earthquake. Moreover, the uranium represents a more precise strain-meter than radon as its presence can be modulated during the preparation phase of the earthquake, and only successively released by micro- fracturing during the main shock and aftershocks.

Published
2013

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