Some observations on the ignimbrites, lava domes and lava flows of M. Cimino (Central Italy)

1963 ◽  
Vol 25 (1) ◽  
pp. 343-358 ◽  
Author(s):  
M. Mittempergher ◽  
C. Tedesco
Keyword(s):  

2020 ◽  
Author(s):  
Hugo Murcia ◽  
Károly Németh

The study of monogenetic volcanism around Earth is rapidly growing due to the increasing recognition of monogenetic volcanic edifices in different tectonic settings. Far from the idea that this type of volcanism is both typically mafic and characteristic from intraplate environments, it occurs in a wide spectrum of composition and geological settings. This volcanism is widely known by the distinctive pyroclastic cones that represent both magmatic and phreatomagmatic explosive activity; they are known as scoria or spatter cones, tuff cones, tuff rings, maars and maar-diatremes. These cones are commonly associated with lava domes and usually accompanied by lava flows as part of their effusive eruptive phases. In spite of this, isolated effusive monogenetic emissions also appear around Earth’s surface. However, these isolated emissions are not habitually considered within the classification scheme of monogenetic volcanoes. Along with this, many of these effusive volcanoes also contrast with the belief that this volcanism is indicative of rapidly magma ascent from the asthenosphere, as many of the products are strongly evolved reflecting differentiation linked to stagnation during ascent. This has led to the understanding that the asthenosphere is not always the place that directly gives rise to the magma batches and rather, they detach from a crustal melt storage. This chapter introduces four singular effusive monogenetic volcanoes as part of the volcanic geoforms, highlights the fact that monogenetic volcanic fields can also be associated with crustal reservoirs, and outlines the processes that should occur to differentiate the magma before it is released as intermediate and acidic in composition. This chapter also provides an overview of this particular volcanism worldwide and contributes to the monogenetic comprehension for future studies.



Author(s):  
Michael J. Branney ◽  
Jan Zalasiewicz

‘Lava’ focuses on lava. Within a kilometre or two of the ground surface, the rise of hot magma is accelerated by the growth of gas bubbles which increase the magma’s buoyancy. If the gases can readily escape from the magma, the magma may ascend more slowly without being ripped apart, and it eventually emerges from the volcano as a lava flow. There are many different types of lava flows: pahoehoe, a’a, block-lavas, inflated lavas, and lava domes, which decrepitate to form hazardous ‘block-and-ash flows’.



2020 ◽  
Author(s):  
Brett Carr ◽  
Einat Lev ◽  
Loÿc Vanderkluysen ◽  
Danielle Moyer ◽  
Gayatri Marliyani ◽  
...  


Agronomie ◽  
2001 ◽  
Vol 21 (3) ◽  
pp. 267-276
Author(s):  
Daniela Businelli ◽  
Enrico Tombesi ◽  
Marco Trevisan


2019 ◽  
pp. 335-358
Author(s):  
Lorenzo Compagnucci ◽  
Alessio Cavicchi ◽  
Francesca Spigarelli


2015 ◽  
Vol 35 ◽  
pp. 268-271
Author(s):  
Michele Saroli ◽  
Michele Lancia ◽  
Marco Petitta ◽  
Gabriele Scarascia Mugnozza




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