A5073120425- Geological and Geochemical Analysis
- Atmospheric and Environmental Gas Dynamics
- earthquake and tectonic studies
- High-pressure geophysics and materials
- Seismology and Earthquake Studies
- Atmospheric Ozone and Climate
- Seismic Waves and Analysis
- Geochemistry and Geologic Mapping
- Meteorological Phenomena and Simulations
- Geology and Paleoclimatology Research
- Mercury impact and mitigation studies
- Geological and Tectonic Studies in Latin America
- Earthquake Detection and Analysis
- CO2 Sequestration and Geologic Interactions
- Methane Hydrates and Related Phenomena
- Geotourism and Geoheritage Conservation
- Ocean Acidification Effects and Responses
- Marine and environmental studies
- Geological Formations and Processes Exploration
- Toxic Organic Pollutants Impact
- Geological and Geophysical Studies Worldwide
- Oil Spill Detection and Mitigation
- Marine animal studies overview
- Calibration and Measurement Techniques
- Air Quality Monitoring and Forecasting
University of Palermo
2015-2024
University of New Mexico
2024
Charles River Laboratories (Netherlands)
2019
Istituto Nazionale di Geofisica e Vulcanologia
2017-2018
Terra
2014-2016
Abstract Recent Icelandic rifting events have illuminated the roles of centralized crustal magma reservoirs and lateral transport 1–4 , important characteristics mid-ocean ridge magmatism 1,5 . A consequence such shallow processing magmas 4,5 is overprinting signatures that trace origin, evolution melts in uppermost mantle lowermost crust 6,7 Here we present unique insights into processes occurring this zone from integrated petrologic geochemical studies 2021 Fagradalsfjall eruption on...
Abstract We present here the first volcanic gas compositional time‐series taken prior to a paroxysmal eruption of Villarrica volcano (Chile). Our plume observations were obtained using fully autonomous Multi‐component Gas Analyser System (Multi‐GAS) in 3 month‐long phase escalating activity that culminated into March 2015 paroxysm, largest since 1985. results demonstrate temporal evolution composition, from low CO 2 /SO ratios (0.65‐2.7) during November 2014‐January up ≈ 9 then after. The H...
Abstract A vigorously degassing lava lake appeared inside the Santiago pit crater of Masaya volcano (Nicaragua) in December 2015, after years with no (or minor) incandescence. Here we present an unprecedented‐long (3 years) and continuous volcanic gas record that instrumentally characterizes (re)activation lake. Our results show that, before appearance lake, plume composition became unusually CO 2 rich, as testified by high /SO ratios (mean: 12.2 ± 6.3) low H O/CO 2.3 1.3). The flux also...
Abstract The mild activity of basaltic volcanoes is punctuated by violent explosive eruptions that occur without obvious precursors. Modelling the source processes these sudden blasts challenging. Here, we use two decades ground deformation (tilt) records from Stromboli volcano to shed light, with unprecedented detail, on short-term (minute-scale) conduit drive such volcanic eruptions. We find eruptions, parameters spanning seven orders magnitude, all share a common pre-blast inflation...
Abstract The benign fuming activity of dormant volcanoes is punctuated by phases escalating degassing that, on some occasions, ultimately prelude to eruption. However, understanding the drivers such unrest complicated complex interplay between magmatic and hydrothermal processes. Some most comprehensively characterised have recently been observed at La Fossa cone Vulcano Island, but whether or not these episodes involve new, volatile-rich ascending magma remains debated. Here, we use...
Abstract Alkaline mafic magmas forming intra-plate oceanic islands are believed to be strongly enriched in CO 2 due low-degree partial melting of mantle sources. However, until now, such enhancement has not been verified by measuring degassing during a subaerial eruption. Here, we provide evidence highly -rich gas emissions the 86-day 2021 Tajogaite eruption Cumbre Vieja volcano on La Palma Island, Canary archipelago. Our results reveal sustained high plume /SO ratios, which, when combined...
Abstract Here we report on the first assessment of volatile fluxes from hyperacid crater lake hosted within summit Copahue, a very active volcano Argentina‐Chile border. Our observations were performed using variety in situ and remote sensing techniques during field campaigns March 2013, when an fumarole field, 2014, acidic volcanic covered field. In latter campaign, found that 566 to 1373 t d −1 SO 2 being emitted plume appeared largely invisible. This, combined with our derived bulk...
Abstract Volcanic gas emissions are intimately linked to the dynamics of magma ascent and outgassing and, on geological time scales, constitute an important source volatiles Earth's atmosphere. Measurements composition flux therefore critical both volcano monitoring determining contribution volcanoes global geochemical cycles. However, significant gaps remain in our inventories volcanic emissions, (particularly for CO 2 , which requires proximal sampling a concentrated plume) those where...
Rincón de la Vieja (10.49 N, 85.19 W), the northernmost active volcano in Costa Rica, hosts a hot acidic crater lake, which frequently produces large phreatic to phreatomagmatic eruptions. Relatively little is known about this volcano, as it poorly monitored due remote location and difficulty of access. In February-May 2017, we deployed Multi-GAS instrument continuously monitor gas concentrations plume released by vigorously degassing lake. The station registered information from February 3...
Aerial measurements using unoccupied aerial systems (UAS) transform our ability to measure and monitor volcanic plumes.
The ordinarily benign activity of basaltic volcanoes is periodically interrupted by violent paroxysmal explosions ranging in size from Hawaiian to Plinian the most extreme examples. These paroxysms often occur suddenly and with limited or no precursors, leaving their causal mechanisms still incompletely understood. Two such events took place summer 2019 at Stromboli, a volcano otherwise known for its persistent mild open-vent activity, resulting one fatality damage infrastructure. Here, we...
The complexity of volcano-hosted hydrothermal systems is such that thorough characterization requires extensive and interdisciplinary work. We use here an integrated multidisciplinary approach, combining geological investigations with hydrogeochemical soil degassing prospecting, resistivity surveys, to provide a comprehensive the shallow structure southwestern Ischia's system. show investigated area characterized by structural setting that, although very complex, can be schematized in three...
Abstract We report on a systematic record of SO 2 flux emissions from individual vents Etna volcano (Sicily), which we obtained using permanent UV camera network. Observations were carried out in summer 2014, period encompassing two eruptive episodes the New South East Crater (NSEC) and fissure‐fed eruption upper Valle del Bove. demonstrate that our vent‐resolved time series allow capturing shifts activity one vent to another contribute understanding Etna's shallow plumbing system structure....
Abstract Volcanoes with multiple summit vents present a methodological challenge for determining vent-specific gas emissions. Here, using novel approach combining ultraviolet cameras synchronous aerial measurements, we calculate compositions and fluxes Stromboli volcano. Emissions from vent areas are spatially heterogeneous in composition emission rate, the central area dominating passive emissions, despite exhibiting least explosive behaviour. Vents Strombolian explosions emit low to...
The persistent open-vent degassing of Mt. Etna is often punctuated by months-long paroxysmal sequences characterized episodes violent Strombolian to lava fountaining activity. Understanding these gas-fueled transitions from quiescence eruption requires routine measurement gas fluxes. Here, we report SO 2 flux measurements, obtained a permanent UV camera system, collected over two-year-long period spanning two Etna’s New South East Crater (NSEC) in December 2020/April 2021 and May/October...
We present our findings on the correlation between CO₂/SO₂ molar ratio of volcanic gas in plume and hourly frequency Strombolian explosions recorded at Stromboli from April to December 2024. Throughout this period, two time series exhibited alternating weeks-long phases synchronous variations periods decoupling, where one signal would increase while other remained constant. In general, high ratios were associated with an increased explosions. period preceding paroxysm...
Ultraviolet imaging has been applied in volcanology over the last ten years or so. This provides considerably higher temporal and spatial resolution volcanic gas emission rate data than available previously, enabling community to investigate a range of far faster plume degassing processes achievable hitherto. To date, this covered rapid oscillations passive through conduits lava lakes, as well puffing explosions, facilitating exciting connections be made for first time between previously...
We used a one-year long SO2 flux record, which was obtained using novel algorithm for real-time automatic processing of ultraviolet (UV) camera data, to characterize changes in degassing dynamics at the Mt. Etna volcano 2016. These records, when combined with independent thermal and seismic evidence, allowed capturing switches activity from paroxysmal explosive eruptions quiescent degassing. found fluxes 1.5–2 times higher than 2016 average (1588 tons/day) during Etna’s May 16–25 eruptive...