Volcanoes. What is it?? It is... an opening, or rupture, in the Earth's surface or crust, which...

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Transcript of Volcanoes. What is it?? It is... an opening, or rupture, in the Earth's surface or crust, which...

VolcanoesVolcanoes

What is it??What is it??

It is...It is...

• an opening, or rupture, in the Earth's surface or crust, which allows hot melted rock, volcanic ash and gases to escape from below the surface.

Why does it look like a mountain?Why does it look like a mountain?

• 1. Magma chamber• 2. Bedrock• 3. Conduit (pipe)• 4. Base• 5. Sill• 6. Branch pipe• 7. Layers of ash emitted by the

volcano• 8. Flank• 9. Layers of lava emitted by the

volcano• 10. Throat• 11. Parasitic cone• 12. Lava flow• 13. Vent• 14. Crater• 15. Ash cloud

•Because melted rock of the past explosions became solid and gave the volcano the shape of a mountain.

Volcanoes in ItalyVolcanoes in Italy

Il VesuvioIl Vesuvio

Il VesuvioIl Vesuvio

VesuvioVesuvio• Vesuvio is a mountain shape volcano in

the Gulf of Naples• it is not currently erupting, it is sleeping• Mount Vesuvius is best known for its

eruption in AD 79 that destroyed of the Roman cities of Pompeii and Herculaneum. They were never rebuilt. The towns' locations were rediscovered in the 18th century.

ExplosionsExplosions

• From 79 B. C. up to 1944

• There has been no eruption since 1944, and none of the post-79 eruptions were as large or destructive as the Pompeian one.

Other VolcanoesOther Volcanoes

• The two other major active volcanoes in Italy, Etna and Stromboli, are located on the islands of Sicily and Stromboli respectively.

StromboliStromboli

StromboliStromboli

Where is Stromboli?Where is Stromboli?

EtnaEtna

ETNAETNA

ETNAETNA

Where is Etna?Where is Etna?