Simone Costa

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Verified

Simone verified their affiliation via an institutional email.

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• PhD
• Research Technologist at Istituto Nazionale di Geofisica e Vulcanologia

The intense explosive and effusive volcanic activity of the last 1000 years at La Fossa volcano (Vulcano Island, Italy) was characterized by the eruption of magmas ranging in composition from latites to trachytes and rhyolites, as well as K-rich trachytes. Evidence of syn-eruptive mixing among these magmas is frequently observed in the form of magm...

The mineralization potential of arc magmas depends, among other factors, on the timing of sulfide melt saturation relative to magma differentiation and to exsolution of a magmatic fluid phase. In fossil mineralized or barren systems, understanding the evolution of metals along the magma differentiation path is often hindered by late magmatic proces...

The eruptive products of the last 1000 years at La Fossa volcano on the island of Vulcano (Italy) are characterized by abrupt changes of chemical composition that span from latite to rhyolite. The wide variety of textural features of these products has given rise to several petrological models dealing with the mingling/mixing processes involving ma...

Platinum-group element (PGE) geochemistry of arc-related magmas can be used to constrain the timing of sulfide saturation, which plays a critical role in the chalcophile element fertility of evolving magmatic systems. In this study, we provide new major and trace elements, PGE, Re and Au data for the shoshonitic suite (from basalt to rhyolite) of t...

The most frequent volcanic eruptions are of low-intensity and small magnitude. They produce abundant ash-sized (< 2 mm) clasts, which are too small to establish quantitative links between magmatic processes and eruptive dynamics using classic approaches. This inhibits our ability to study the past behaviour of frequently erupting volcanoes, essenti...

Near real-time petrological monitoring represents a major advancement for volcanology, offering potential insights into magmatic plumbing systems, unravelling mechanisms driving volcanic eruptions, with strong implications for eruption forecasting and volcanic hazard assessment, aiding decision-making during volcanic crises. Thanks to recent techno...

Dissolution and reaction textures of plagioclase phenocrysts in basaltic rocks testify to perturbations of the magmatic system that are frequently associated with pre-eruptive mixing processes. Dissolution-reaction experiments performed at 150 MPa and 1150–1300 °C are used to examine and quantify the timescales of reactive dissolution of plagioclas...

Fe-rich filamentary textures are almost ubiquitous in products from explosive eruptions at basaltic volcanoes and, in particular, they characterize the groundmass of ash and lapilli emitted during high-energy events. Here, we present a multidisciplinary study integrating petrological analyses with computational fluid dynamics simulations to propose...

IAVCEI Scientific Assembly - Call for Abstracts 29 June - 4 July 2025 Geneva, Switzerland We invite you to submit to our session in Theme 1: Tick, tick… Boom! Timescales and dynamics of volcanic plumbing systems revealed by multidisciplinary approaches Abstract: Understanding the timing of magma storage and the architecture of volcanic plumbing...

1 2 3 4 Corresponding author email: Keywords: Plagioclase is a widespread mineral component in basaltic magmas across all geodynamic settings. The phenocrysts can provide clues on the magmatic processes in active volcanoes. Several experimental works number investigated the behaviour of plagioclase crystals under disequilibrium conditions. Here we...

The role of fluids in faults during single seismic cycles is a greatly debated topic. An increasingly literature suggests that fluids might trigger instability favoring slip during nucleation and/or propagation of coseismic fault ruptures, and due to fracturing might affect the long-term structural diagenesis of fault zones. Indeed, both cementatio...

The Marsili seamount is a submarine volcano in the Tyrrhenian Sea that originated in a back-arc setting. Aiming to define the complexity of its trans-crustal plumbing system, we explored the compositional and textural variations of crystal cargoes in basaltic to andesitic lavas collected from three different sectors of the volcano (northern, axial,...

The “First Italian Workshop on Fluid and Melt Inclusions” took place in the beautiful location of the Botanical Garden of Palermo, Sicily, Italy, on May 10–11, 2023. The workshop was organized by Dr. Francesco Maria Lo Forte and Prof. Alessandro Aiuppa of the University of Palermo (Italy), and Dr. Simone Costa of the University of Pisa (Italy). The...

We present undercooling (∆T) experiments aimed at investigating the effect of growth kinetics on the textural and compositional evolution of clinopyroxene crystals growing from a high-K basalt erupted during the 2003 paroxysm of Stromboli volcano (Italy). The experiments were performed at P = 350 MPa, T = 1050–1210 °C, H2Omelt = 0–3 wt%, and fO2 =...

Although minor components, orogenic peridotites occur in most orogenic belts and constitute invaluable material to study mantle dynamics. One of the most challenging issues is to decipher the geodynamical setting as well as the age and mechanisms by which peridotites were transferred into the crustal units. In this study, we focused on the low pres...

Magma crystallization is a fundamental process driving the evolution of magmas in the crust and influencing the style of volcanic eruptions. Crystallization occurs through either (near) equilibrium or kinetically-controlled mechanisms driving the solidification of magmas and the final textural and chemical characteristics of igneous rocks. Among ot...

Mt. Etna features an articulated plumbing system characterized by a central open-conduit, culminating with the persistent degassing summit craters, three rift-related lateral systems (S-Rift, NE Rift and W Rift) and the eccentric feeding system, characterized by disperse monogenetic cones. In the last twenty years, most the eruptive activity occurr...

Due to the strong affinity of chalcophile and siderophile elements (PGE, Au, Cu, Ag) for the sulphide phase, magmatic sulphide saturation, and particularly the timing of its occurrence with respect to magma differentiation and fluid exsolution, exerts a primary control on the evolution of fertile magmatic-hydrothermal systems [1, 2]. We investigate...

Magmatic sulfide minerals preserved in fresh volcanic rocks can be used to trace sulfur and chalcophile element evolution in magmatic systems and to constrain the potential magmatic contribution to ore-forming fluids. In this work, we present a petrographic and microanalytical study of magmatic sulfides in the products of La Fossa (Vulcano, souther...