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

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Volcanoes Volcanoes

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

Page 1: Volcanoes. What is it?? It is... an opening, or rupture, in the Earth's surface or crust, which allows hot melted rock, volcanic ash and gases to escape.

VolcanoesVolcanoes

Page 2: Volcanoes. What is it?? It is... an opening, or rupture, in the Earth's surface or crust, which allows hot melted rock, volcanic ash and gases to escape.

What is it??What is it??

Page 3: Volcanoes. What is it?? It is... an opening, or rupture, in the Earth's surface or crust, which allows hot melted rock, volcanic ash and gases to escape.

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.

Page 4: Volcanoes. What is it?? It is... an opening, or rupture, in the Earth's surface or crust, which allows hot melted rock, volcanic ash and gases to escape.

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

Page 5: Volcanoes. What is it?? It is... an opening, or rupture, in the Earth's surface or crust, which allows hot melted rock, volcanic ash and gases to escape.

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

Page 6: Volcanoes. What is it?? It is... an opening, or rupture, in the Earth's surface or crust, which allows hot melted rock, volcanic ash and gases to escape.

Volcanoes in ItalyVolcanoes in Italy

Page 7: Volcanoes. What is it?? It is... an opening, or rupture, in the Earth's surface or crust, which allows hot melted rock, volcanic ash and gases to escape.

Il VesuvioIl Vesuvio

Page 8: Volcanoes. What is it?? It is... an opening, or rupture, in the Earth's surface or crust, which allows hot melted rock, volcanic ash and gases to escape.

Il VesuvioIl Vesuvio

Page 9: Volcanoes. What is it?? It is... an opening, or rupture, in the Earth's surface or crust, which allows hot melted rock, volcanic ash and gases to escape.

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.

Page 10: Volcanoes. What is it?? It is... an opening, or rupture, in the Earth's surface or crust, which allows hot melted rock, volcanic ash and gases to escape.

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.

Page 11: Volcanoes. What is it?? It is... an opening, or rupture, in the Earth's surface or crust, which allows hot melted rock, volcanic ash and gases to escape.

Other VolcanoesOther Volcanoes

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

Page 12: Volcanoes. What is it?? It is... an opening, or rupture, in the Earth's surface or crust, which allows hot melted rock, volcanic ash and gases to escape.

StromboliStromboli

Page 13: Volcanoes. What is it?? It is... an opening, or rupture, in the Earth's surface or crust, which allows hot melted rock, volcanic ash and gases to escape.

StromboliStromboli

Page 14: Volcanoes. What is it?? It is... an opening, or rupture, in the Earth's surface or crust, which allows hot melted rock, volcanic ash and gases to escape.

Where is Stromboli?Where is Stromboli?

Page 15: Volcanoes. What is it?? It is... an opening, or rupture, in the Earth's surface or crust, which allows hot melted rock, volcanic ash and gases to escape.

EtnaEtna

Page 16: Volcanoes. What is it?? It is... an opening, or rupture, in the Earth's surface or crust, which allows hot melted rock, volcanic ash and gases to escape.

ETNAETNA

Page 17: Volcanoes. What is it?? It is... an opening, or rupture, in the Earth's surface or crust, which allows hot melted rock, volcanic ash and gases to escape.

ETNAETNA

Page 18: Volcanoes. What is it?? It is... an opening, or rupture, in the Earth's surface or crust, which allows hot melted rock, volcanic ash and gases to escape.

Where is Etna?Where is Etna?