Fabio Tateo

Institute of Geosciences and Earth Resources

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Vito Summa

National Research Council

Eliana Fornaciari

University of Padua

Claudia Agnini

University of Padua

Luca Giusberti

University of Padua

Maria Luigia Giannossi

National Research Council - Institute of Methodologies for Environmental Analysis

L. Medici

National Research Council - Institute of Methodologies for Environmental Analysis

Jan Backman

Stockholm University

Anna Carraro

Policlinico Tor Vergata

Domenico Rio

University of Padua

Johannes C. Hunziker

University of Lausanne

Cooperative Institutions

University of Padua

National Research Council

Institute of Geosciences and Earth Resources

University of Bologna

Bologna Research Area

Institute of Marine Science

National Academies of Sciences, Engineering, and Medicine

University of Bari Aldo Moro

University of Florence

National Research Council - Institute of Methodologies for Environmental Analysis

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Conceptual Model of Arsenic Mobility in the Shallow Alluvial Aquifers Near Venice (Italy) Elucidated Through Machine Learning and Geochemical Modeling

Water Resources Research (2020)

Nico Dalla Libera Daniele Pedretti Fabio Tateo Leonardo Mason Leonardo Piccinini

Abstract This work proposed a novel method to elucidate the controls of As mobility in complex aquifers based on an unsupervised machine learning algorithm, Self‐Organizing Map (SOM), and process‐based geochemical modeling. The approach is tested in the shallow aquifers of the Venetian Alluvial Plain (VAP) near Venice, Italy, where As concentrations seasonally and locally exceed recommended drinking water limits. SOM was fed using information from two geochemical surveys on eight VAP boreholes, and continuous reading of hourly groundwater head levels and weekly geochemical analyses from three VAP boreholes between mid‐October 2017 and end of January 2018. The SOM analysis is consistent with redox‐controlled dissolution‐precipitation hydrous ferric oxides (HFOs) as a key control of As mobility in the aquifer. Dissolved As is positively correlated to Fe and and negatively to the oxidizing‐reducing potential (ORP). Negative correlation between As and groundwater head levels suggests a redox control by rainfall‐driven recharge, which adds oxidants to the aquifer while progressively attenuating As. This mechanism is tested using process‐based geochemical modeling, which simulates different transport modalities of oxidants entering the aquifer. Starting from reducing aquifer conditions, the model reproduces correctly the observed ORP and the trends in As and Fe, when the function describing the occurrence of oxidizing events scales according to the temporal occurrence of rainfall events. Heterogeneity can strongly control the local‐scale effectiveness of recharge as a natural As attenuating factor, requiring a different model analysis to be properly assessed and to be developed in a follow‐up study.

10.1029/2019wr026234

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Citations (16)

Bottom water production variability in the Ross Sea slope during the Late Pleistocene-Holocene as revealed by benthic foraminifera and sediment geochemistry

EGU General Assembly Conference Abstracts (2010)

Leonardo Langone Alessandra Asioli Fabio Tateo Federico Giglio Domenico Ridente

(1) Istituto Scienze Marine-CNR, Bologna, Italy (leonardo.langone@bo.ismar.cnr.it/390516398940), (2) Istituto di Geoscienze e Georisorse-CNR, Padova, Italy (alessandra.asioli@igg.cnr.it,/390498272010), (3) Istituto di Geologia Ambientale e Geoingegneria-CNR, Roma, Italy (domenico.ridente@cnr.it), (4) Istituto di Metodologie per l’Analisi Ambientale-CNR, Potenza, Italy (summa@imaa.cnr.it), (5) Dipartimento di Geoscienze, Universita di Padova, Italy (a.carraro@unipd.it), (6) ENI E&P Division, Sedimentology, Petrography & Stratigraphy Dpt., S. Donato Milanese, Italy (Andrea.Piva@eni.it)

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Chapter C1 Integrated stratigraphy near the oligocene/miocene boundary in the piedmont basin (Italy): Biostratigraphy and geochronology

Developments in palaeontology and stratigraphy (1995)

G.S. Odin Anna Raffaella D'Atri Fabio Tateo M. A. Cosca Johannes C. Hunziker

Stratotype

Geochronology

Outcrop

Hiatus

Chronostratigraphy

10.1016/s0920-5446(06)80019-1

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Citations (1)

Effects of environmental parameters and their interactions on the spreading of SARS-CoV-2 in North Italy under different social restrictions. A new approach based on multivariate analysis

Environmental Research (2022)

Fabio Tateo Sirio Fiorino L Peruzzo Maddalena Zippi Dario de Biase

10.1016/j.envres.2022.112921

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Citations (8)

Geochemical and mineralogical proxies for grain size in mudstones and siltstones from the Pleistocene and Holocene of the Po River alluvial plain, Italy

Geological Society of America eBooks (2007)

Enrico Dinelli Fabio Tateo Vito Summa

Recent studies carried out on fine-grained sediments recovered from boreholes in the eastern plain of the Po River demonstrate that significant mineralogical and geochemical changes in the provenance of sediments occurred in coincidence with the Pleistocene-Holo-cene transition. An increase in ultramafic-sourced sediment, related to more important inputs from the Po River, is evident at the beginning of the Holocene. The effects of grain-size distribution and provenance variation were investigated on recent unconsolidated sediments, mainly silts and clays. Sediments were collected from ten boreholes in the area, and the geochemical and mineralogical data were compared to the grain-size data. Among the chemical indexes, Zr/V, Y/Rb, Y/V, SiO2/Al2O3, Fe2O3/SiO2, Na/Al increase from pure clay to fine sand together with some mineralogical ratios, including quartz/interstratified illite-smectite and feldspar/interstratified illite-smectite. Some provenance indexes, both mineralogical and geochemical (Ni/Al, Cr/Al, serpentine/sheet silicates), were found to be independent from grain-size and are therefore valid for a wide textural range of sediments. Several geochemical and mineralogical proxies for grain size were identified. In the present case, all these indexes are independent from provenance influence and can be used as direct proxies for the grain size of the sediment, as confirmed by the multiple regression analysis performed to evaluate median and sorting. The equations included the most significant ratios and work well for median values <30 μm.

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10.1130/2007.2420(03)

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Citations (51)

Clay minerals as adsorbents of aflatoxin M1 from contaminated milk and effects on milk quality

Applied Clay Science (2013)

Anna Carraro Alessandro De Giacomo Maria Luigia Giannossi L. Medici Marilena Muscarella

Bentonite

Saponite

10.1016/j.clay.2013.11.028

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Citations (81)

Integrated stratigraphy of the Oligocene pelagic sequence in the Umbria-Marche basin (northeastern Apennines, Italy): A potential Global Stratotype Section and Point (GSSP) for the Rupelian/Chattian boundary

Geological Society of America Bulletin (2008)

Rodolfo Coccioni Andrea Marsili Alessandro Montanari Adriana Bellanca Rodolfo Neri

The Oligocene represents an important time period from a wide range of perspectives and includes significant climatic and eustatic variations. The pelagic succession of the Umbria-Marche Apennines (central Italy) includes a complete and continuous sequence of marly limestones and marls, with volcaniclastic layers that enable us to construct an integrated stratigraphic framework for this time period. We present here a synthesis of detailed biostratigraphic, magnetostratigraphic, and chemostratigraphic studies, along with geochronologic results from several biotite-rich volcaniclastic layers, which provide the means for an accurate and precise radiometric calibration of the Oligocene time scale. From this study, the interpolated ages for the Rupelian/Chattian stage boundary, located in the upper half of Chron 10n at meter level 188 in the Monte Cagnero section, and corresponding to the O4/O5 planktonic foraminiferal zonal boundary, are 28.36 Ma (paleomagnetic interpolation), 28.27 ± 0.1 Ma (direct radioisotopic dating), and 27.99 Ma (astrochronological interpolation). These ages appear to be slightly younger than those reported in recent chronostratigraphic time scale compilations. The Monte Cagnero section is a potential candidate for defining the Chattian Global Stratotype Section and Point (GSSP) and some reliable criteria are here proposed for marking the Rupelian/Chattian boundary according to International Union of Geological Sciences (IUGS) recommendations.

Stratotype

Section (typography)

Sequence (biology)

Sequence Stratigraphy

Stratigraphic section

10.1130/b25988.1

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Citations (66)

Geochemistry of two peats suitable for medical uses and their behaviour during leaching

Applied Clay Science (1999)

Vito Summa Fabio Tateo

Parent rock