TABLE OF CONTENTS

The fumarolic CO₂ output from Pico do Fogo volcano (Cape Verde)

Alessandro Aiuppa (1), Marcello Bitetto (1), Andrea L. Rizzo (2), Fatima Viveiros (3), Patrick Allard (4), Maria Luce Frezzotti (5), Virginia Valenti (5) & Vittorio Zanon (3,4)

A Christmas gift: Signature of the 24th December 2018 eruption of Mt. Etna on the chemical composition of bulk deposition in eastern Sicily

Filippo Brugnone (1), Walter D’Alessandro (2), Sergio Calabrese (1,2), Lorenza Li Vigni (1), Sergio Bellomo (2), Lorenzo Brusca (2), Vincenzo Prano (2), Filippo Saiano (3) & Francesco Parello (1)

Geochemical survey of the Colpitas-Taapaca volcanic-hydrothermal system, northern Chile

Manuel Inostroza (1,2), Franco Tassi (3,4), José Sepúlveda (3), Francesco Capecchiacci (3), Andrea L. Rizzo (5) & Felipe Aguilera (2,6,7)

Geogenic CO₂ flux calculations from the Late Pleistocene Tivoli travertines (Acque Albule Basin, Tivoli, Central Italy)

Alessandro Mancini (1), Enrico Capezzuoli (2), Andrea Brogi (3,4), Rudy Swennen (5), Lisa Ricci (6) & Francesco Frondini (6)

The hydrothermal system of Bagni San Filippo (Italy): fluids circulation and CO₂ degassing

Giovanni Chiodini (1), Carlo Cardellini (2), Stefano Caliro (3), Rosario Avino (3), Marco Donnini (4), Domenico Granieri (5), Nicola Morgantini (6), Domenico Sorrenti (7) & Francesco Frondini (2)

Intercomparison of geochemical techniques at La Soufrière de Guadeloupe (FWI) volcano: their advantages and their limits over a long-standing unrest

Roberto Moretti (1,2), Séverine Moune (1,2), Vincent Robert (1,2), David E. Jessop (1,2), Tristan Didier (1,2), Magali Bonifacie (1,2) & Jean-Christophe Komorowski (1)

The precious treasure of Mariano Valenza: the history of Ludovico Sicardi and the birth of geochemical volcano monitoring

Sergio Calabrese (1-2-3), Lorenza Li Vigni (1-3), Filippo Brugnone (1-3), Giorgio Capasso (2), Walter D’Alessandro (2), Francesco Parello (1) & Paolo Ferla (1)

Geochemical characterization of an urban lake in the centre of Rome (Lake Bullicante, Italy)

Monia Procesi (1), Daniele Cinti (1), Barbara Casentini (2), Jacopo Cabassi (3), Stefano Amalfitano (2), Luca Pizzino (1), Francesco Capecchiacci (4), Andrea Butturini (5) & Stefano Fazi (2)

Geology and Cultural Heritage: characterization and provenance of local stones and spolia used in the Romanesque façade of Santa Maria della Piazza church (Ancona, Central Italy)

Maria Letizia Amadori (1), Andrea Paribeni (2), Francesca Gasparetto (3), Biagio De Martinis (4) & Patrizia Santi (1)

Geological map and stratigraphic evolution of the central sector of the Carnic Alps (Austria-Italy)

Monica Pondrelli (1), Carlo Corradini (2), Claudia Spalletta (3), Luca Simonetto (4), Maria Cristina Perri (3), Maria G. Corriga (5), Corrado Venturini (3) & Hans Peter Schönlaub (6)