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Vesuvius
Paradimorphite, β-As 4 S 3 , a vintage new mineral from Solfatara di Pozzuoli and Vesuvius, Napoli, Italy
The complex mechanism of Ti 4+ incorporation into litidionite from the Somma–Vesuvius volcano, Italy
Quantification of excess 231 Pa in late Quaternary igneous baddeleyite
Br diffusion in phonolitic melts: Comparison with fluorine and chlorine diffusion
Pompeian hiatuses: new stratigraphic data highlight pauses in the course of the ad 79 eruption at Pompeii
Physical constraints for effective magma-water interaction along volcanic conduits during silicic explosive eruptions: REPLY
Sbacchiite, Ca 2 AlF 7 , a new fumarolic mineral from the Vesuvius volcano, Napoli, Italy
On the trail of Otto Hermann Wilhelm Abich: a journey through the Italian volcanoes
Carbon fluxes from subducted carbonates revealed by uranium excess at Mount Vesuvius, Italy
Radon surveys and monitoring at active volcanoes: learning from Vesuvius, Stromboli, La Soufrière and Villarrica
Abstract Understanding the behaviour of fluids in hydrothermal systems is a key factor in volcano monitoring. Measuring gas emissions in volcanic areas is strategic for detecting and interpreting precursory signals of variations in volcanic activity. The role of radon as a potential precursor of earthquakes has been extensively debated. However, radon anomalies appear to be better suited to forecast eruptive episodes as we know the loci of volcanic eruptions and we can follow the evolution of volcanic activity. Radon mapping is an effective tool in assessing diffuse and concentrated degassing at the surface. We hereby summarize the in-soil radon emissions collected worldwide and further discuss a collection of data on our key targets. These are closed-conduit and open-conduit volcanoes: Vesuvius (Italy) and La Soufrière (Guadeloupe, Lesser Antilles), Stromboli (Italy) and Villarrica (Chile), respectively. In all the above volcanoes, faults and fracture systems control radon degassing. Automatic and real-time measurements help us to detect major changes in volcanic activity. We present and discuss the radon time series associated with the last effusive eruption at Stromboli. Spectral analyses reveal diurnal and semi-diurnal cycles being probably modulated by atmospheric variations. Multiple linear regression (MLR) analyses have been performed by filtering the radon signals from the effects of local environmental parameters. The residuals do not show particular variations or precursory peaks as the gases have been released from this open-conduit volcano before the onset of the effusive phase (7 August 2014). It is finally emphasized that radon is not the sole precursor, and we should also rely on other geochemical and geophysical parameters. In this perspective, we propose a methodological procedure that can contribute to improving volcano surveillance in an attempt to mitigate volcanic risk.
Fluorophlogopite-bearing and carbonate metamorphosed xenoliths from the Campanian Ignimbrite (Fiano, southern Italy): crystal chemical, geochemical and volcanological insights
Detection of liquid H 2 O in vapor bubbles in reheated melt inclusions: Implications for magmatic fluid composition and volatile budgets of magmas?
Sodalite-group Minerals from the Somma-vesuvius Volcano (naples, Italy): a Combined Epma, Sims, and Ftir Crystal-chemical Study
Degassing of hydrous trachytic Campi Flegrei and phonolitic Vesuvius melts: Experimental limitations and chances to study homogeneous bubble nucleation
The artist as geotourist: Eugene von Guérard and the seminal sites of early volcanic research in Europe and Australia
Abstract The career of the Austrian-born landscape painter Eugene von Guérard (1811–1901) was defined by his travels, which took him to Italy and Germany in the 1830s and 1840s and to Australia and New Zealand between 1852 and 1882. Today he is recognized as one of Australia’s greatest nineteenth-century landscape painters. His formative years coincided with the emergence of geology as an independent scientific discipline and a growing awareness in the wider community of the role played by volcanic activity and other geological processes in the formation of the Earth’s geomorphology. This new understanding was particularly pertinent to landscape painters, whose very subject was the form of the land; in Germany, where von Guérard trained and worked between 1838 and 1852, its relevance for landscape painters was emphasized by the influential natural scientist Alexander von Humboldt and the scientist, landscape painter and art theorist Carl Gustav Carus. They argued that the artist should paint from a geologically informed perspective. Von Guérard’s interest in volcanic geology was sparked by his experiences in southern Italy, consolidated in Germany on expeditions through the Harz and Eifel regions and then fully realized in response to the landscapes of southeastern Australia. Through his informed portrayal of sites of geological significance in each hemisphere and through the cultural value invested in them as a consequence of his depiction of them, von Guérard epitomized that recently conceived construct: the geotourist.