Introduzione
RESOCONTO IN LINGUA INGLESE
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Volcanoes are closely associated with tectonic activity. Most of them occur on either the overriding or the diverging margins of the enormous lithospheric plates that make up the Earth 's surface.

There are six major types of eruptions: The ICELANDIC type, the HAWAIIAN type, the STROMBOLIAN type, the VULCANIC type, the PELEIAN type and the PLINIAN type.

The Plinian type is an intensely violent kind of volcanic eruption exemplified by the outburst of Mt. Vesuvius in AD 79 that killed the famous Pliny the Elder, from whom the name is taken.

The uprushing gases and volcanic fragments appear like a gigantic rocket blast directed vertically upward. Plinian eruption clouds can rise into the stratosphere and are sometimes sustained for several hours.

In AD 79 the great eruption of Vesuvius buried the seaside towns of Pompeii, Herculaneum, and Stabiae, engulfing also many villas confidently constructed on the slopes of a mountain that had not erupted for more than seven centuries. A contemporary account of this event remains to us in two letters addressed to the historian Tacitus by Pliny the Younger, who describes the doomed attempt of his uncle, the elder Pliny, to rescue survivors by sea.

The elder Pliny perished at Stabiae, near the villa of his friend Pomponianus.

 

ELENCO DEI VOCABOLI IN ORDINE ALFABETICO

 

Alternate operations of fire and water = Azioni alternate di fuoco e acqua grumbles = brontola
ashes =ceneri height = altezza
a river of red hot and liquid metal = un fiume di metallo rosso e liquefatto grumblings = brontolii
astonishing artificial fireworks =fuochi d'artificio spettacolari hill = collina
atmosphere = atmosfera impregnated with = impregnato di
bad weather = cattivo tempo interesting spot = luogo interessante
bed = letto lava = lava
black smoke = fumo nero materials = materiali
bowels of the volcan = viscere del vulcano matter = materiale
broke out = esplose mountain = montagna

changes = mutamenti

mouth = bocca
cinders = ceneri pumice stones = pietre pomici
column = colonna representations = rappresentazioni
crevices = fessure rounded pebbles = ciottoli arrotondati
damage = danno ruins = rovine
destroy = distruzione service = utilità
dissipation = dispersione shape = forma
detrimental = nocivo shower of stones = pioggia di pietre
earthquake = terremoto snow = neve
emission = emissione smoke = fumo
explosions = esplosioni stratum = strato
eruption = eruzione sulphur = sulfureo
fermentation = fermentazione thrown up = scagliato
fell in = ricadde top = cima
feet = piedi ; un piede =cm.30,479 tufa = tufo
fertility = fertilità

vegetation = vegetazione

fragments = frammenti violent explosions = esplosioni violente
flame =fiamma volcan = vulcano
girandoles of red hot stones = girandole di pietre rosse infuocate volcanic matter = materiale vulcanico

 

LE ROCCE

(clicca sulle immagini)

 

aragonite Atacapite Augite Biotite Brucite Covellite Cuspidina Diopside Fassaite

Feldspato goethite Ludwigite magnetite Melanite Melilite Nefelina Orneblenda Perovskite

 Phillipsite sanidino Scolecite Spinello tenorite Thenardite Thomsonite Vonsonite Wollastonite

 

VULCANESIMO SECONDARIO

 

Vari sono i fenomeni di vulcanesimo secondario :

 

(clicca sulle parole)

 

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