Volcanic Assignment
Melanie Brooke Yeakley
1. What is the myth from which volcanoes get their name?
•It comes from the little island of Vulcano in the Mediterranean Sea off Sicily. Centuries ago, the people living in this area believed that Vulcano was the chimney of the forge of Vulcan--the blacksmith of the Roman gods. They thought that the hot lava fragments and clouds of dust erupting from Vulcano came from Vulcan's forge as he beat out thunderbolts for Jupiter, king of the gods, and weapons for Mars, the god of war.
2. What is the difference between magma and lava?
•Molten rock below the surface of the Earth that rises in volcanic vents is known as magma, but after it erupts from a volcano it is called lava
3. What are the main types of volcanoes?
•cinder cones, composite volcanoes, shield volcanoes, and lava domes.
4. The Hawaiian Islands are what type of volcano? How tall is Mauna Loa?
•Shield volcanoes; 13,677 feet above sea level
5. What type of volcanoes are the most violent?
•Plinian
6. Are all eruptions alike? Describe the type of eruption of Mt. St Helens?
•No;
•It involves the explosive ejection of relatively viscous lava, it can send ash and volcanic gas tens of miles into the air. The resulting ash fallout can affect large areas hundreds of miles downwind. Fast-moving deadly pyroclastic flows
7. The Pacific ring of Fire is an example of volcanoes that form at ___________ _____________.
•Plate boundary
The Hawaiian Islands are examples of ____-________ ______________.
•Intra plate
8.What are some of the common methods used to study volcanic related phenomena?
•Measurement of changes in the shape of the volcano
•Precise determination of the location and magnitude of earthquakes by a well-designed seismic network
•Measurement of changes in volcanic-gas composition and in magnetic field
9. Go to intro to granite and play with the clickable map. This photo shows an excellent example of a phaneritic (coarse grained) texture.
1. What is the myth from which volcanoes get their name?
•It comes from the little island of Vulcano in the Mediterranean Sea off Sicily. Centuries ago, the people living in this area believed that Vulcano was the chimney of the forge of Vulcan--the blacksmith of the Roman gods. They thought that the hot lava fragments and clouds of dust erupting from Vulcano came from Vulcan's forge as he beat out thunderbolts for Jupiter, king of the gods, and weapons for Mars, the god of war.
2. What is the difference between magma and lava?
•Molten rock below the surface of the Earth that rises in volcanic vents is known as magma, but after it erupts from a volcano it is called lava
3. What are the main types of volcanoes?
•cinder cones, composite volcanoes, shield volcanoes, and lava domes.
4. The Hawaiian Islands are what type of volcano? How tall is Mauna Loa?
•Shield volcanoes; 13,677 feet above sea level
5. What type of volcanoes are the most violent?
•Plinian
6. Are all eruptions alike? Describe the type of eruption of Mt. St Helens?
•No;
•It involves the explosive ejection of relatively viscous lava, it can send ash and volcanic gas tens of miles into the air. The resulting ash fallout can affect large areas hundreds of miles downwind. Fast-moving deadly pyroclastic flows
7. The Pacific ring of Fire is an example of volcanoes that form at ___________ _____________.
•Plate boundary
The Hawaiian Islands are examples of ____-________ ______________.
•Intra plate
8.What are some of the common methods used to study volcanic related phenomena?
•Measurement of changes in the shape of the volcano
•Precise determination of the location and magnitude of earthquakes by a well-designed seismic network
•Measurement of changes in volcanic-gas composition and in magnetic field
9. Go to intro to granite and play with the clickable map. This photo shows an excellent example of a phaneritic (coarse grained) texture.