Search Results - "Spagnuolo, Elena"
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Fracture Energy and Breakdown Work During Earthquakes
Published in Annual review of earth and planetary sciences (31-05-2023)“…Large seismogenic faults consist of approximately meter-thick fault cores surrounded by hundreds-of-meters-thick damage zones. Earthquakes are generated by…”
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2
A neural network based approach to classify VLF signals as rock rupture precursors
Published in Scientific reports (12-08-2022)“…The advent of novel technologies revealed that other geophysical signals than those directly related to fault motion could be used to probe the state of…”
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3
Rock deformation vs. radon emission: some constraints from shear stress-controlled experiments
Published in Scientific reports (29-09-2023)“…Numerous field and laboratory studies have been conducted to investigate the relationship between radon variation and seismic events, as well as the complex…”
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4
Fast-moving dislocations trigger flash weakening in carbonate-bearing faults during earthquakes
Published in Scientific reports (10-11-2015)“…Rupture fronts can cause fault displacement, reaching speeds up to several ms −1 within a few milliseconds, at any distance away from the earthquake nucleation…”
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5
Past seismic slip-to-the-trench recorded in Central America megathrust
Published in Nature geoscience (01-12-2017)“…The 2011 Tōhoku-Oki earthquake revealed that co-seismic displacement along the plate boundary megathrust can propagate to the trench. Co-seismic slip to the…”
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6
Biomarker thermal maturity experiments at earthquake slip rates
Published in Earth and planetary science letters (15-11-2018)“…Evidence of temperature rise is useful for identifying where within a fault zone earthquake slip has occurred, as well as some attributes of the earthquake…”
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7
Ultra-thin clay layers facilitate seismic slip in carbonate faults
Published in Scientific reports (06-04-2017)“…Many earthquakes propagate up to the Earth’s surface producing surface ruptures. Seismic slip propagation is facilitated by along-fault low dynamic frictional…”
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Preliminary analysis of radon time series before the Ml=6 Amatrice earthquake: possible implications for fluid migration
Published in Annals of geophysics (01-01-2016)“…On August 24, 2016, a Ml=6.0 earthquake occurred in Central Apennines, Italy, between the towns of Norcia and Amatrice, causing severe destruction and…”
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Investigating the effectiveness of rupture directivity during the August 24, 2016 Mw 6.0 Central Italy earthquake
Published in Annals of geophysics (01-01-2016)“…In this study we investigate directivity effects associated to the Mw6.0 Amatrice earthquake taking into account the source rupture heterogeneities. We use the…”
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10
Frictional evolution, acoustic emissions activity, and off‐fault damage in simulated faults sheared at seismic slip rates
Published in Journal of geophysical research. Solid earth (01-10-2016)“…We present a series of high‐velocity friction tests conducted on Westerly granite, using the Slow to HIgh Velocity Apparatus (SHIVA) installed at Istituto…”
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11
Microstructural evidence for seismic and aseismic slips along clay‐bearing, carbonate faults
Published in Journal of geophysical research. Solid earth (01-05-2017)“…In this multimethodological study, microstructural observations of fault rocks are combined with micromechanical property analyses (contact resonance atomic…”
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12
Italian Mothers and Italian-Canadian Daughters: Using Language to Negotiate the Politics of Gender
Published in Genealogy (Basel) (01-06-2019)“…This paper examines how migration redefines family narratives and dynamics. Through a parallel between the mother and the mother tongue, I unravel the…”
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13
From field geology to earthquake simulation: a new state-of-the-art tool to investigate rock friction during the seismic cycle (SHIVA)
Published in Atti della Accademia nazionale dei Lincei. Rendiconti Lincei. Scienze fisiche e naturali (01-12-2010)“…Despite considerable effort over the past several decades, the mechanics of earthquake rupture remains largely unknown. Moderate- to large-magnitude…”
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14
Dislocation Motion and the Microphysics of Flash Heating and Weakening of Faults during Earthquakes
Published in Crystals (Basel) (01-07-2016)“…Earthquakes are the result of slip along faults and are due to the decrease of rock frictional strength (dynamic weakening) with increasing slip and slip rate…”
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15
Earthquakes in the Mantle? Insights From Rock Magnetism of Pseudotachylytes
Published in Journal of geophysical research. Solid earth (01-11-2017)“…Ultramafic pseudotachylytes have been regarded as earthquake fossils formed at mantle depths (i.e., >30 km). Here we show that pseudotachylytes hosted by…”
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16
Exploring frictional properties of upper plate fault reactivation in subduction zones: The Atacama Fault System in northern Chile
Published in Earth and planetary science letters (15-12-2024)“…•The frictional properties of the Atacama Fault System (AFS) are highly controlled by phyllosilicate content.•At low shear velocities, the fault gouges…”
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17
Selective clast survival in an experimentally-produced pseudotachylyte
Published in Journal of structural geology (01-06-2021)“…On-fault processes during earthquakes contribute to seismic rupture propagation and slip. Here we investigate clast fragmentation in an experimental…”
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Frictional properties of basalt experimental faults and implications for volcano-tectonic settings and geo-energy sites
Published in Tectonophysics (20-07-2021)“…We performed a suite of experiments aimed at examining the frictional properties of unaltered basalts at conditions considered to be representative of slip at…”
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19
Fast and Localized Temperature Measurements During Simulated Earthquakes in Carbonate Rocks
Published in Geophysical research letters (16-05-2021)“…The understanding of earthquake physics is hindered by the poor knowledge of fault strength and temperature evolution during seismic slip. Experiments…”
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Frictional Instabilities and Carbonation of Basalts Triggered by Injection of Pressurized H2O‐ and CO2‐ Rich Fluids
Published in Geophysical research letters (28-06-2018)“…The safe application of geological carbon storage depends also on the seismic hazard associated with fluid injection. In this regard, we performed friction…”
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