Search Results - "Daniele Morgavi"

The Effect of Conduit Walls Roughness on Volcanic Jets and Their Seismo‐Acoustic Radiation: An Experimental Investigation by Spina, Laura, Taddeucci, Jacopo, Pennacchia, Francesco, Morgavi, Daniele, Peña Fernández, Juan José, Sesterhenn, Jörn, La Spina, Giuseppe, Scarlato, Piergiorgio

“…To explore the effect of conduit roughness on volcanic jet dynamics and on the related seismo‐acoustic radiation we performed a series of shock‐tube…”
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The unexpected explosive sub-Plinian eruption of Calbuco volcano (22–23 April 2015; southern Chile): Triggering mechanism implications by Arzilli, Fabio, Morgavi, Daniele, Petrelli, Maurizio, Polacci, Margherita, Burton, Mike, Di Genova, Danilo, Spina, Laura, La Spina, Giuseppe, Hartley, Margaret E., Romero, Jorge E., Fellowes, Jonathan, Diaz-Alvarado, Juan, Perugini, Diego

“…Plinian-type eruptions are extremely hazardous, producing pyroclastic fallout and flows extending many kilometres from the vent. The most commonly invoked…”
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Combining machine learning techniques, microanalyses and large geochemical datasets for tephrochronological studies in complex volcanic areas: New age constraints for the Pleistocene magmatism of central Italy by Petrelli, Maurizio, Bizzarri, Roberto, Morgavi, Daniele, Baldanza, Angela, Perugini, Diego

“…Characterization, correlation and provenance determination of tephra samples in sedimentary sections (tephrochronological studies) are powerful tools for…”
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Approximate chemical analysis of volcanic glasses using Raman spectroscopy by Di Genova, Danilo, Morgavi, Daniele, Hess, Kai-Uwe, Neuville, Daniel R., Borovkov, Nikita, Perugini, Diego, Dingwell, Donald B.

“…The effect of chemical composition on the Raman spectra of a series of natural calcalkaline silicate glasses has been quantified by performing electron…”
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Rifting and recharge as triggers of the mixed basalt–rhyolite Halarauður ignimbrite eruption (Krafla, Iceland) by Rooyakkers, Shane M., Stix, John, Berlo, Kim, Morgavi, Daniele, Petrelli, Maurizio, Rusiecka, Monika K., Barker, Simon J., Charlier, Bruce L. A., Neave, David A., Vetere, Francesco P., Perugini, Diego

“…We present a petrologic study of the ca. 110 ka Halarauður eruption (7 ± 6 km 3 magma), associated with collapse of Krafla caldera in northeast Iceland…”
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Magmatic Processes at Euganean Hills (Veneto Volcanic Province, Italy): Clinopyroxene Investigation to Unravel Magmatic Interactions by Nazzareni, Sabrina, Morgavi, Daniele, Petrelli, Maurizio, Bartoli, Omar, Perugini, Diego

“…The Euganean Hills (NE Italy) magmatic district represents the final volcanic activity of the Veneto Volcanic Province. Alkaline to subalkaline magmatic suite…”
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Pyroclastic deposits and eruptive heterogeneity of Volcán Antuco (37°S; Southern Andes) during the Mid to Late Holocene (<7.2 ka) by Romero, Jorge E., Ramírez, Victoria, Alam, Mohammad Ayaz, Bustillos, Jorge, Guevara, Alicia, Urrutia, Roberto, Pisello, Alessandro, Morgavi, Daniele, Criollo, Evelyn

“…Volcán Antuco (37°24′ S, 71°22′W; 2979 m asl) is the 13th ranked high threat volcano in Chile with 27 recorded historical eruptions, mostly (~96%) with…”
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Time evolution of chemical exchanges during mixing of rhyolitic and basaltic melts by Morgavi, Daniele, Perugini, Diego, De Campos, Cristina P., Ertel-Ingrisch, Werner, Dingwell, Donald B.

“…We present the first set of chaotic mixing experiments performed using natural basaltic and rhyolitic melts. The mixing process is triggered by a recently…”
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Calibrating Carbonization Temperatures of Wood Fragments Embedded within Pyroclastic Density Currents through Raman Spectroscopy by Andrea Schito, Alessandra Pensa, Claudia Romano, Sveva Corrado, Alessandro Vona, Matteo Trolese, Daniele Morgavi, Guido Giordano

“…The study of the structural order of charcoals embedded in pyroclastic density currents provides information on their emplacement temperature during volcanic…”
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Interactions between rhyolitic and basaltic melts unraveled by chaotic mixing experiments by Morgavi, Daniele, Perugini, Diego, De Campos, Cristina P., Ertl-Ingrisch, Werner, Lavallée, Yan, Morgan, Lisa, Dingwell, Donald B.

“…Magma mixing may operate at any stage in the evolution of a magmatic system. The development of mixing is strongly controlled by fluid dynamics and its…”
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Clustering of Experimental Seismo-Acoustic Events Using Self-Organizing Map (SOM) by Giudicepietro, Flora, Esposito, Antonietta M., Spina, Laura, Cannata, Andrea, Morgavi, Daniele, Layer, Lukas, Macedonio, Giovanni

“…The analogue experiments that produce seismo-acoustic events are relevant for understanding the degassing processes of a volcanic system. The aim of this work…”
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Tephra From the 3 March 2015 Sustained Column Related to Explosive Lava Fountain Activity at Volcán Villarrica (Chile) by Romero, Jorge E., Vera, Franco, Polacci, Margherita, Morgavi, Daniele, Arzilli, Fabio, Alam, Mohammad Ayaz, Bustillos, Jorge E., Guevara, Alicia, Johnson, Jeffrey B., Palma, José L., Burton, Mike, Cuenca, Evelyn, Keller, Werner

“…Exceptionally intense lava fountains at open conduit volcanoes are infrequent, hazardous and little-warned events. Studying their tephra falls may reveal…”
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Lava flow field development and lava tube formation during the 1858–1861 eruption of Vesuvius (Italy), unravelled by historical documentation, lidar data and 3D mapping by Lemaire, Thomas, Morgavi, Daniele, Petrosino, Paola, Calvari, Sonia, Repola, Leopoldo, Esposito, Lorenzo, Di Martire, Diego, Morra, Vincenzo, Frondini, Francesco

“…Somma-Vesuvius is well known for its powerful Plinian explosive eruptions, however during the last eruptive cycle (1631–1944), persistent activity took place…”
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Rheological evolution of eruptible Basaltic-Andesite Magmas under dynamic conditions: The importance of plagioclase growth rates by Vetere, Francesco, Petrelli, Maurizio, Perugini, Diego, Haselbach, Sarah, Morgavi, Daniele, Pisello, Alessandro, Iezzi, Gianluca, Holtz, Francois

“…The effects of crystal nucleation and growth on the viscosity of andesitic magmas are investigated at 1 atm. Pressure. The data are used to describe the…”
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The Origin of Rhyolitic Magmas at Krafla Central Volcano (Iceland) by Rooyakkers, Shane M, Stix, John, Berlo, Kim, Petrelli, Maurizio, Hampton, Rachel L, Barker, Simon J, Morgavi, Daniele

“…Abstract We present a detailed petrologic study of rhyolites from seven eruptions spanning the full (∼190 ky) history of rhyolitic volcanism at Krafla volcano,…”
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CO2 flux from the French Massif Central groundwaters: Modelling and quantitative estimation of the degassing process by Ricci, Lisa, Frondini, Francesco, Morgavi, Daniele, Zuccolini, Marino Vetuschi, Boudoire, Guillaume, Laumonier, Mickael, Caliro, Stefano, Cardellini, Carlo, Ionescu, Artur, Ariano, Alessandra, Chiodini, Giovanni

“…Passive rift systems are often characterized by CO2 degassing, witnessed by the presence of mineral and thermal springs, bubbling pools, mofetes. Despite these…”
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Role of magma mixing in the pre-eruptive dynamics of the Aeolian Islands volcanoes (Southern Tyrrhenian Sea, Italy) by Rossi, Stefano, Petrelli, Maurizio, Morgavi, Daniele, Vetere, Francesco P., Almeev, Renat R., Astbury, Rebecca L., Perugini, Diego

“…We combined literature and experimental data to determine the role of magma mixing in the pre-eruptive dynamics of the Aeolian Islands volcanoes. As a first…”
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Dynamics and time evolution of a shallow plumbing system: The 1739 and 1888–90 eruptions, Vulcano Island, Italy by Vetere, Francesco, Petrelli, Maurizio, Morgavi, Daniele, Perugini, Diego

“…In this work we analyze the morphology of latitic enclaves occurring in the rhyolitic lava flow of Pietre Cotte (Island of Vulcano, Italy). We show that…”
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Water-enhanced interdiffusion of major elements between natural shoshonite and high-K rhyolite melts by González-García, Diego, Behrens, Harald, Petrelli, Maurizio, Vetere, Francesco, Morgavi, Daniele, Zhang, Chao, Perugini, Diego

“…The interdiffusion of six major elements (Si, Ti, Fe, Mg, Ca, K) between natural shoshonite and a high-K rhyolite (Vulcano island, Aeolian archipelago, Italy)…”
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Diffusive exchange of trace elements between alkaline melts: Implications for element fractionation and timescale estimations during magma mixing by González-Garcia, Diego, Petrelli, Maurizio, Behrens, Harald, Vetere, Francesco, Fischer, Lennart A., Morgavi, Daniele, Perugini, Diego

“…The diffusive exchange of 30 trace elements (Cs, Rb, Ba, Sr, Co, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Ta, V, Cr, Pb, Th, U, Zr, Hf, Sn…”
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