Volcanoes
-
Upload
cibyers -
Category
Technology
-
view
845 -
download
1
description
Transcript of Volcanoes
![Page 1: Volcanoes](https://reader036.fdocuments.net/reader036/viewer/2022070316/5558f741d8b42ac04d8b47fb/html5/thumbnails/1.jpg)
Volcanoes 101
![Page 2: Volcanoes](https://reader036.fdocuments.net/reader036/viewer/2022070316/5558f741d8b42ac04d8b47fb/html5/thumbnails/2.jpg)
Magma - molten rock under the earth
Lava - magma that has reached the surface
Non-explosive Eruptionslava flows - rivers of
hot lava
Lava fountains - sprays of lava from non-explosive eruptions
![Page 3: Volcanoes](https://reader036.fdocuments.net/reader036/viewer/2022070316/5558f741d8b42ac04d8b47fb/html5/thumbnails/3.jpg)
Is this an explosive or non-explosive eruption?
What is this volcanic formation called?
![Page 4: Volcanoes](https://reader036.fdocuments.net/reader036/viewer/2022070316/5558f741d8b42ac04d8b47fb/html5/thumbnails/4.jpg)
![Page 5: Volcanoes](https://reader036.fdocuments.net/reader036/viewer/2022070316/5558f741d8b42ac04d8b47fb/html5/thumbnails/5.jpg)
![Page 6: Volcanoes](https://reader036.fdocuments.net/reader036/viewer/2022070316/5558f741d8b42ac04d8b47fb/html5/thumbnails/6.jpg)
Explosive Eruptions- clouds of hot gases, lava and solid rock
explode out of volcanoes at super high speeds
![Page 7: Volcanoes](https://reader036.fdocuments.net/reader036/viewer/2022070316/5558f741d8b42ac04d8b47fb/html5/thumbnails/7.jpg)
Magma composition
Water - The more water the more explosive the volcano will be, like CO2 in a soda can.
Silica - Magma with lots of silica will harden in the vents and cause a pressure build up and a larger explosion. Less silica means runny lava.
![Page 8: Volcanoes](https://reader036.fdocuments.net/reader036/viewer/2022070316/5558f741d8b42ac04d8b47fb/html5/thumbnails/8.jpg)
Types of lava
1. Blocky Lava
2. Pahoehoe
3. Aa
4. Pillow
![Page 9: Volcanoes](https://reader036.fdocuments.net/reader036/viewer/2022070316/5558f741d8b42ac04d8b47fb/html5/thumbnails/9.jpg)
Types of Pyroclastic Material
1. Volcanic Blocks
2. Volcanic Bombs
3. Lapilli
4. Volcanic Ash
![Page 10: Volcanoes](https://reader036.fdocuments.net/reader036/viewer/2022070316/5558f741d8b42ac04d8b47fb/html5/thumbnails/10.jpg)
Volcanoes' Effect on the Earth
1. Flows and Fall out
2. Climatic Changes
![Page 11: Volcanoes](https://reader036.fdocuments.net/reader036/viewer/2022070316/5558f741d8b42ac04d8b47fb/html5/thumbnails/11.jpg)
Volcanoes
Types of volcanoes1. Cinder cones2. Shield Cones3. Composite cones or
Stratovolcanoes
![Page 12: Volcanoes](https://reader036.fdocuments.net/reader036/viewer/2022070316/5558f741d8b42ac04d8b47fb/html5/thumbnails/12.jpg)
Label each volcano
Types of volcanoes1. Cinder cones2. Shield Cones3. Composite cones or
Stratovolcanoes
![Page 13: Volcanoes](https://reader036.fdocuments.net/reader036/viewer/2022070316/5558f741d8b42ac04d8b47fb/html5/thumbnails/13.jpg)
Craters
Vent
Magma Chamber
Lava Plateaus
![Page 14: Volcanoes](https://reader036.fdocuments.net/reader036/viewer/2022070316/5558f741d8b42ac04d8b47fb/html5/thumbnails/14.jpg)
Caldera
![Page 15: Volcanoes](https://reader036.fdocuments.net/reader036/viewer/2022070316/5558f741d8b42ac04d8b47fb/html5/thumbnails/15.jpg)
Lava Plateau
![Page 16: Volcanoes](https://reader036.fdocuments.net/reader036/viewer/2022070316/5558f741d8b42ac04d8b47fb/html5/thumbnails/16.jpg)
Formation of Magma
1. Pressure
2. Temperature
3. Density
![Page 17: Volcanoes](https://reader036.fdocuments.net/reader036/viewer/2022070316/5558f741d8b42ac04d8b47fb/html5/thumbnails/17.jpg)
Where do volcanoes occur?
![Page 18: Volcanoes](https://reader036.fdocuments.net/reader036/viewer/2022070316/5558f741d8b42ac04d8b47fb/html5/thumbnails/18.jpg)
Prediction of Volcanoes
1. Measuring small quakes
2. Measuring Slope
Tiltmeter
![Page 19: Volcanoes](https://reader036.fdocuments.net/reader036/viewer/2022070316/5558f741d8b42ac04d8b47fb/html5/thumbnails/19.jpg)
3. Measuring Volcanic Gasses
4. Measuring Temperature from Orbit
![Page 20: Volcanoes](https://reader036.fdocuments.net/reader036/viewer/2022070316/5558f741d8b42ac04d8b47fb/html5/thumbnails/20.jpg)
![Page 21: Volcanoes](https://reader036.fdocuments.net/reader036/viewer/2022070316/5558f741d8b42ac04d8b47fb/html5/thumbnails/21.jpg)
![Page 22: Volcanoes](https://reader036.fdocuments.net/reader036/viewer/2022070316/5558f741d8b42ac04d8b47fb/html5/thumbnails/22.jpg)
![Page 23: Volcanoes](https://reader036.fdocuments.net/reader036/viewer/2022070316/5558f741d8b42ac04d8b47fb/html5/thumbnails/23.jpg)