Geological evolution of Etna volcano

2004 ◽  
pp. 49-63 ◽  
Author(s):  
Stefano Branca ◽  
Mauro Coltelli ◽  
Gianluca Groppelli
Keyword(s):  
Etna Volcano ◽  
Geological Evolution

scholarly journals Raman semi-quantification on Mars: ExoMars RLS system as a tool to better comprehend the geological evolution of Martian crust

Icarus ◽  
2021 ◽  
pp. 114542
Author(s):  
Marco Veneranda ◽  
Jose Antonio Manrique-Martinez ◽  
Clara Garcia-Prieto ◽  
Aurelio Sanz-Arranz ◽  
Jesús Saiz ◽  
...  
Keyword(s):  
Geological Evolution

Geological evolution of the Guallatiri volcano, Arica y Parinacota Region, northern Chile

2020 ◽  
pp. 103117
Author(s):  
José Pablo Sepúlveda ◽  
Felipe Aguilera ◽  
Manuel Inostroza ◽  
María Paz Reyes
Keyword(s):  
Northern Chile ◽  
Geological Evolution

scholarly journals Anatomy of a Paroxysmal Lava Fountain at Etna Volcano: The Case of the 12 March 2021, Episode

2021 ◽  
Vol 13 (15) ◽  
pp. 3052
Author(s):  
Sonia Calvari ◽  
Alessandro Bonaccorso ◽  
Gaetana Ganci
Keyword(s):  
Lava Flow ◽  
Ground Deformation ◽  
Monitoring Network ◽  
Lava Flows ◽  
Etna Volcano ◽  
Lava Fountain ◽  
Eruptive Episode ◽  
Lava Fountains ◽  
Borehole Strainmeter ◽  
Ash Plume

On 13 December 2020, Etna volcano entered a new eruptive phase, giving rise to a number of paroxysmal episodes involving increased Strombolian activity from the summit craters, lava fountains feeding several-km high eruptive columns and ash plumes, as well as lava flows. As of 2 August 2021, 57 such episodes have occurred in 2021, all of them from the New Southeast Crater (NSEC). Each paroxysmal episode lasted a few hours and was sometimes preceded (but more often followed) by lava flow output from the crater rim lasting a few hours. In this paper, we use remote sensing data from the ground and satellite, integrated with ground deformation data recorded by a high precision borehole strainmeter to characterize the 12 March 2021 eruptive episode, which was one of the most powerful (and best recorded) among that occurred since 13 December 2020. We describe the formation and growth of the lava fountains, and the way they feed the eruptive column and the ash plume, using data gathered from the INGV visible and thermal camera monitoring network, compared with satellite images. We show the growth of the lava flow field associated with the explosive phase obtained from a fixed thermal monitoring camera. We estimate the erupted volume of pyroclasts from the heights of the lava fountains measured by the cameras, and the erupted lava flow volume from the satellite-derived radiant heat flux. We compare all erupted volumes (pyroclasts plus lava flows) with the total erupted volume inferred from the volcano deflation recorded by the borehole strainmeter, obtaining a total erupted volume of ~3 × 106 m3 of magma constrained by the strainmeter. This volume comprises ~1.6 × 106 m3 of pyroclasts erupted during the lava fountain and 2.4 × 106 m3 of lava flow, with ~30% of the erupted pyroclasts being remobilized as rootless lava to feed the lava flows. The episode lasted 130 min and resulted in an eruption rate of ~385 m3 s−1 and caused the formation of an ash plume rising from the margins of the lava fountain that rose up to 12.6 km a.s.l. in ~1 h. The maximum elevation of the ash plume was well constrained by an empirical formula that can be used for prompt hazard assessment.

scholarly journals Analysis of a large seismically induced mass movement after the December 2018 Etna volcano (southern Italy) seismic swarm

2021 ◽  
Vol 263 ◽  
pp. 112524
Author(s):  
Michele Saroli ◽  
Matteo Albano ◽  
Simone Atzori ◽  
Marco Moro ◽  
Cristiano Tolomei ◽  
...  
Keyword(s):  
Southern Italy ◽  
Mass Movement ◽  
Etna Volcano ◽  
Seismic Swarm
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