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Boron isotopes in ground water; evidence from contamination and interaction with terrigenous-evaporitic sequence, east-central Italy

Angela Nigro, Giuseppe Sappa and Maurizio Barbieri
Boron isotopes in ground water; evidence from contamination and interaction with terrigenous-evaporitic sequence, east-central Italy (in Mineral deposits exploration and environmental geochemistry; case studies in Italy and China, Benedetto De Vivo (prefacer), Annamaria Lima (prefacer), P. Ni (prefacer) and D. Cicchella (prefacer))
Geochemistry - Exploration, Environment, Analysis (November 2018) 18 (4): 343-350

Abstract

Boron isotope composition was used to identify boron sources in groundwater in the eastern part of central Italy, on the west side of the lower alluvial plane of the Pescara river, a few kilometres from the coastline. This area was characterized by two possible boron sources: human activity and a geogenic source. We collected 10 water samples during two sampling surveys, in October 2015 and February 2016. We conducted chemical analyses to determine major ions, boron concentrations and boron isotope values. The results obtained highlight that the groundwater is characterized by high mineralization with electrical conductivity values that reach 8180 mu S/cm. Sodium and chloride are the principal ions, reaching values that exceed 3000 mg/L. Boron values exceed the limit provide by Italian legislation for groundwater (1 mg/L) in many samples, reaching the maximum value of 9630 mu g/L during February 2016. The isotope values allow the identification of different sources of boron such as landfill leachate, rock leaching and water-rock interaction with terrigenous-evaporitic sequence. This manuscript highlights that isotope analyses are a powerful tool for monitoring and environmental planning.


ISSN: 1467-7873
EISSN: 2041-4943
Serial Title: Geochemistry - Exploration, Environment, Analysis
Serial Volume: 18
Serial Issue: 4
Title: Boron isotopes in ground water; evidence from contamination and interaction with terrigenous-evaporitic sequence, east-central Italy
Title: Mineral deposits exploration and environmental geochemistry; case studies in Italy and China
Author(s): Nigro, AngelaSappa, GiuseppeBarbieri, Maurizio
Author(s): De Vivo, Benedettoprefacer
Author(s): Lima, Annamariaprefacer
Author(s): Ni, P.prefacer
Author(s): Cicchella, D.prefacer
Affiliation: Sapienza University of Rome, Department of Earth Science, Rome, Italy
Affiliation: Pegaso University, Naples, Italy
Pages: 343-350
Published: 201811
Text Language: English
Publisher: Geological Society Publishing House, London, United Kingdom
References: 23
Accession Number: 2018-096805
Categories: Isotope geochemistryEnvironmental geology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 1 table, geol. sketch map
N42°25'00" - N42°27'00", E14°10'00" - E14°15'00"
Country of Publication: United Kingdom
Secondary Affiliation: GeoRef, Copyright 2019, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States. Reference includes data from The Geological Society, London, London, United Kingdom
Update Code: 201851
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