Diego Perugini
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View article: The interaction of crystalline and amorphous phases in the determination of VNIR and MIR spectral signatures: insights from the PVRG rock spectra database
The interaction of crystalline and amorphous phases in the determination of VNIR and MIR spectral signatures: insights from the PVRG rock spectra database Open
Magmatism and volcanism are key processes that shaped the surface of rocky planets in the Solar System, and understanding how magmatism occurred on these planets is essential to reconstruct their geological histories. It is very likely tha…
View article: Spectroscopy (VNIR-MIR) of lab-made silicate glasses as analogues for volcaniclastic materials on Mercury: insights on chemical composition and grain size
Spectroscopy (VNIR-MIR) of lab-made silicate glasses as analogues for volcaniclastic materials on Mercury: insights on chemical composition and grain size Open
Introduction: Volcanic and magmatic processes shaped the surfaces and contributed to the mineral diversity of Mercury. Beyond the ubiquitous presence of effusive products (smooth plains) explosive volcanism is suggested by the presence of …
View article: Spectral characterization of lab-made silicate glasses as analogues for Mercury: influence of grain size and chemical composition.
Spectral characterization of lab-made silicate glasses as analogues for Mercury: influence of grain size and chemical composition. Open
Volcanic and magmatic processes have played a significant role in shaping Mercury’s surface and contributing to its mineral diversity. Areas such as smooth plains, which cover 27% of the planet, are thought to have formed from effusi…
View article: Orange-Volcanoes: Enhancing Data-Driven Petro-Volcanological Analysis with Applications in Petrological Volcano Monitoring
Orange-Volcanoes: Enhancing Data-Driven Petro-Volcanological Analysis with Applications in Petrological Volcano Monitoring Open
We introduce Orange-Volcanoes, an add-on for the open-source Orange Data Mining platform, designed to enhance data-driven workflows in petrology, geochemistry, and volcanology. Orange-Volcanoes extends the core features of Orange by incorp…
View article: Brillouin spectroscopy of natural and chemically complex volcanic glasses: The role of divalent cations
Brillouin spectroscopy of natural and chemically complex volcanic glasses: The role of divalent cations Open
This work investigates using Brillouin light scattering (BLS) spectroscopy the relationship between chemistry and longitudinal (or pressure) sound-wave propagation on a large dataset of alkaline to sub-alkaline silicate glasses. Results sh…
View article: Orange-Volcanoes: A new open and collaborative platform to perform data-driven investigations and machine learning analyses in petrology and volcanology
Orange-Volcanoes: A new open and collaborative platform to perform data-driven investigations and machine learning analyses in petrology and volcanology Open
Orange-Volcanoes is an extension of the open-source Orange data mining platform specifically tailored for geochemical, petrological, and volcanological investigations. Orange-Volcanoes enhances the original platform by incorporating specia…
View article: The Crystal Cargo Reveals the Build-up Phase to Caldera-Forming Mafic Eruptions
The Crystal Cargo Reveals the Build-up Phase to Caldera-Forming Mafic Eruptions Open
The magma accumulation phase preceding caldera-forming eruptions is crucial to identify the signs of an impending catastrophic event. While extensively studied in silicic systems, mafic volcanoes present unique challenges. The high eruptiv…
View article: Interdiffusion of major elements at 1 atmosphere between natural shoshonitic and rhyolitic melts
Interdiffusion of major elements at 1 atmosphere between natural shoshonitic and rhyolitic melts Open
The diffusive mass exchange of eight major elements (Si, Ti, Al, Fe, Mg, Ca, Na, and K) between natural, nominally dry shoshonitic and rhyolitic melts was studied at atmospheric pressure and temperatures between 1230 and 1413 °C using the …
View article: Exoland Simulator, a Laboratory Device for Reflectance Spectral Analyses of Planetary Soil Analogs: Design and Simulation
Exoland Simulator, a Laboratory Device for Reflectance Spectral Analyses of Planetary Soil Analogs: Design and Simulation Open
In planetary science, visible (Vis) and near-infrared (NIR) reflectance spectra allow deciphering the chemical/mineralogical composition of celestial bodies’ surfaces by comparison between remotely acquired data and laboratory references. …
View article: Building analogs in the lab: spectral characterization of a synthetic Nakhlite.
Building analogs in the lab: spectral characterization of a synthetic Nakhlite. Open
Introduction Silicates are the main constituent of volcanic terrains on terrestrial planets in the Solar system. On Earth, we know that volcanic terrains are constituted by lava flows and fragmented pyroclasts whose texture presents both g…
View article: Automatic CRISM mapping and spectral parameter generation using undercomplete autoencoders
Automatic CRISM mapping and spectral parameter generation using undercomplete autoencoders Open
IntroductionRemotely sensed hyperspectral data provide essential information on the composition of rockson planetary surfaces. On Mars, these data types are provided by the CRISM instrument(Compact Reconnaissance Imaging Spectrometer for M…
View article: Dimensionality reduction on MIR spectra of powdered silicate glasses as analogues for volcanic ashes
Dimensionality reduction on MIR spectra of powdered silicate glasses as analogues for volcanic ashes Open
Rationale Silicate glasses are significant components of volcanic products, but spectral libraries typically provide references of crystalline materials rather than amorphous ones, even if blurred/featureless spectra are observed on p…
View article: Spectral characterization of lab-made Nakhlitic rock powders: effects of crystal/glass ratio and acquisition geometry.
Spectral characterization of lab-made Nakhlitic rock powders: effects of crystal/glass ratio and acquisition geometry. Open
Silicates are the main constituent of volcanic terrains on terrestrial planets in the Solar system. On Earth, we know that volcanic terrains are constituted by lava flows and fragmented pyroclasts whose texture presents both glassy and cry…
View article: The role of mixing and crystallization in the differentiation of magmatic systems
The role of mixing and crystallization in the differentiation of magmatic systems Open
Understanding magma differentiation and formation of eruptible magmas is one of the key issues in Earth sciences. Many studies have either focused on mixing or crystallization, but none have studied these two processes simultaneously. Here…
View article: Fragmentation behavior of young pyroclasts from Mt. Pelée, Martinique
Fragmentation behavior of young pyroclasts from Mt. Pelée, Martinique Open
The stratovolcano Mt. Pelée, Martinique, exhibits eruptive styles ranging from dome formation to sustained, highly violent explosive activity. Historical eruptions have produced lava domes and pyroclastic density currents, collectively ter…
View article: The April 2015 Calbuco eruption pyroclastic density currents: deposition, impacts on woody vegetation, and cooling on the northern flank of the cone
The April 2015 Calbuco eruption pyroclastic density currents: deposition, impacts on woody vegetation, and cooling on the northern flank of the cone Open
The 22-23 April 2015 eruption of the Calbuco volcano (Southern Andes, Chile) led to extensive pyroclastic density currents (PDCs) interactions with vegetation. We seek to describe the PDCs which affected both Tepu and Frío rivers, northern…
View article: Decarbonation and clast dissolution timescales for short-term magma‑carbonate interactions in the volcanic feeding system and their influence on eruptive dynamics: Insights from experiments at atmospheric pressure
Decarbonation and clast dissolution timescales for short-term magma‑carbonate interactions in the volcanic feeding system and their influence on eruptive dynamics: Insights from experiments at atmospheric pressure Open
While long-term interactions of magma with carbonate wall-rock (a.k.a. carbonate assimilation) are well-studied, only recently some experimental studies focused on short-term interactions (seconds to minutes) at magma chamber conditions (0…
View article: Machine Learning Thermo-Chemo-Barometry: Can we rely on AI models? Repository
Machine Learning Thermo-Chemo-Barometry: Can we rely on AI models? Repository Open
Clinopyroxene Clinopyroxene Thermo-Chemo-Barometry models submitted to Computers & Geosciences journal This is the Ágreda-López et al (2023) clinopyroxene Thermo-Chemo-Barometers. The general workflow goes like this: 1. you will find five …
View article: Effects of Temperature on Visible and Infrared Spectra of Mercury Minerals Analogues
Effects of Temperature on Visible and Infrared Spectra of Mercury Minerals Analogues Open
Mercury’s peculiar orbit around the Sun (3:2 spin–orbit resonance) and lack of atmosphere result in one the widest temperature ranges experienced at the surface of a planetary body in the solar system. Temperature variations affect the phy…
View article: Pre-eruptive dynamics at the Campi Flegrei Caldera: from evidence of magma mixing to timescales estimates
Pre-eruptive dynamics at the Campi Flegrei Caldera: from evidence of magma mixing to timescales estimates Open
We review pre-eruptive dynamics and evidence of open-system behavior in the volcanic plumbing system beneath Campi Flegrei Caldera, together with estimates of magma residence time, magma ascent, and mixing-to-eruption timescales. In detail…
View article: Mid-Infrared (MIR) Spectroscopy of Silicate Glasses as Analogs for Mercury’s Surface: The Influence of Grain Size
Mid-Infrared (MIR) Spectroscopy of Silicate Glasses as Analogs for Mercury’s Surface: The Influence of Grain Size Open
Volcanic products are widely present on Mercury: they occur as low-viscosity lava flows, but traces of ash deriving from explosive volcanism are also observed. Silicate glasses represent a major component in volcanic products, and it is li…
View article: A new spectral database for silicate glasses: a fundamental resource to interpret characteristics of volcanic terrains on planetary bodies
A new spectral database for silicate glasses: a fundamental resource to interpret characteristics of volcanic terrains on planetary bodies Open
<p>Even if silicate glasses represent a major component in volcanic products, their spectral characteristics are not always considered when dealing with the interpretation of planetary and asteroidal surfaces and terrains. Space anal…
View article: Open-System Behaviour at the Campi Flegrei Caldera: from Evidence of Magma Mixing to pre-Eruptive Timescales
Open-System Behaviour at the Campi Flegrei Caldera: from Evidence of Magma Mixing to pre-Eruptive Timescales Open
We review the evidence of open-system behavior in the volcanic plumbing system of the Campi Flegrei Caldera. Also, we highlight the estimates of magma residence time, magma ascent, and mixing-to-eruption timescales. In detail, we concentra…