Search results for "Aeolian Island"
showing 10 items of 24 documents
Comparison of the effect of non-polluted and underwater-volcano-polluted seawater on the corrosion resistance of different stainless steels
2015
This work compares the effect of non‐polluted and underwater‐volcano‐polluted seawater on the electrochemical behavior of two different alloys, notably an austenitic stainless steel (SS) and a duplex stainless steel. Polarization measurements, potentiostatic passivation tests, electrochemical impedance spectroscopy and capacitance measurements were performed. Results show that the composition of the polluted seawater negatively affects the passivation kinetics of both AISI 316 SS and Alloy 900, decreasing the corrosion resistance of both alloys. Additionally, when both steels are compared, it can be concluded that passive films formed on Alloy 900 presented better protective properties than…
Piano di Gestione UNESCO Isole EOLIE
2008
Nel Piano di gestione del sito UNESCO Isole Eolie sono definiti i criteri e le modalità per realizzare contemporaneamente l’obiettivo della tutela di un bene e uno sviluppo locale sostenibile. Il Piano contiene una mappatura dei Beni Culturali e Ambientali e Naturalistici, descrivendo un sistema territorio sotto il profilo economico-ambientale che contiene: - L’inquadramento storico, economico e antropologico del sito, l’uso finora fatto, i fattori di incidenza sui beni ambientali e culturali; - L’inquadramento attuale del sito, attraverso un’analisi degli strumenti legislativi e amministrativi e della loro conformità; - L’analisi dei processi produttivi critici e le relative interazioni co…
PETROLOGICAL AND EXPERIMENTAL CONSTRAINTS OF THE PRE-ERUPTIVE CONDITIONS OF LA SOMMATA BASALT AND BROWN TUFFS TEPHRA (AEOLIAN ISLANDS)
2011
The principal focus of this thesis was the reconstruction of pre-eruptive conditions of two key eruptions at Vulcano island, the Brown Tuffs and the La Sommata, by combining the melt inclusion approach with phase equilibria derived by crystallization experiments. Brown Tuffs (the most energetic and widely distributed eruption of the Archipelago) were produced by several eruptions that occurred in a large age interval, 78-7.7 ka B.P. At Vulcano BT deposits crop out as proximal facies. La Sommata centre (age ca. 50 ka B.P.), is instead a basaltic scoria cone fed by one of the most primitive magmas of Aeolian Arc with ankaramitic affinity. Pyroxene-hosted melt inclusions on Lower and Intermedi…
Umanesimo della pietra/Humanism of the stone
2009
La corretta citazione del nome "Cytisus aeolicus" (Fabaceae), e sua tipificazione
1999
Study of Cystoseira brachycarpa J. Agardh emend. Giaccone of a shallow hydrothermal vent area of the Aeolian Islands (Tyrrhenian Sea): preliminary re…
2011
La diversità degli animali domestici nelle isole circumsiciliane: un patrimonio scomparso prima di essere conosciuto
2018
In tutti gli studi che affrontano il tema della perdita della diversità animale allevata e vegetale coltivata in Sicilia non si fa cenno alla presenza di razze animali nelle isole circumsiciliane, ad eccezione dell’asino di Pantelleria. Recenti indagini hanno permesso di accertare una presenza storica, seppur limitata, di razze animali, oggi estinte, sulle isole parasicule. Inoltre i testi che trattano specificatamente di tali razze forniscono preziose informazioni sul passato uso agro-pastorale dei territori insulari e meritano pertanto un’adeguata valorizzazione. None of the studies dealing with the loss of Sicilian reared animal and cultivated plant diversity mentions the presence of ani…
Data Quality in Tourism. Non-Sampling Errors in the Aeolian Islands Research.
2013
Geochemistry and isotope composition (Sr, Pb, δ66Zn) of Vulcano fumaroles (Aeolian Islands, Italy)
2018
We present and discuss temperatures, major and trace element gas geochemistry, radiogenic isotopes (Pb, Sr) and the first Zn isotope data of fumarole condensates and altered rocks from the Vulcano fumarolic field. The fumaroles of the La Fossa cone, sampled on 5th May 2015, have temperatures ranging between 233 and 427 °C. They plot compositionally on the mixing trend between the magmatic and hydrothermal end-members defined by previous studies, but are strongly displaced towards the hydrothermal component. Correlations of radiogenic (Sr, Pb) and stable isotopes of Zn with δ13CCO2 and several trace elements of the fumarolic acid condensates support mixing between the above mentioned distinc…
The community of Cystoseira brachycarpa J. Agardh emend. Giaccone (Fucales, Phaeophyceae) in a shallow hydrothermal vent area of the Aeolian Islands …
2014
A Cystoseira brachycarpa community from a vent area off Panarea Island (Italy) was investigated in two sites at different pH values. At low pH, species richness and coverage were low and the community displayed a reduced reproductive capacity. Conversely, at normal pH, dense canopies of fertile C. brachycarpa were found.