Volcanoes Chapter 7. Volcanoes of the World Relationships of Volcanic Activity to Plate Tectonics.
Lesson 2 Plate Tectonics And Volcanoes
-
Upload
jstrachan -
Category
Technology
-
view
1.730 -
download
1
description
Transcript of Lesson 2 Plate Tectonics And Volcanoes
![Page 1: Lesson 2 Plate Tectonics And Volcanoes](https://reader033.fdocuments.in/reader033/viewer/2022061208/548af034b47959a76a8b4648/html5/thumbnails/1.jpg)
African
Indo-Australian Plate
North American
South American
Eurasian
Pacific
Nazca
Antarctic
Pacific
Plate names
![Page 2: Lesson 2 Plate Tectonics And Volcanoes](https://reader033.fdocuments.in/reader033/viewer/2022061208/548af034b47959a76a8b4648/html5/thumbnails/2.jpg)
Plate Boundaries.
First task- To find out what happens at the 4 different plate
boundaries.
![Page 3: Lesson 2 Plate Tectonics And Volcanoes](https://reader033.fdocuments.in/reader033/viewer/2022061208/548af034b47959a76a8b4648/html5/thumbnails/3.jpg)
Constructive plate boundary
![Page 4: Lesson 2 Plate Tectonics And Volcanoes](https://reader033.fdocuments.in/reader033/viewer/2022061208/548af034b47959a76a8b4648/html5/thumbnails/4.jpg)
Destructive plate boundary
![Page 5: Lesson 2 Plate Tectonics And Volcanoes](https://reader033.fdocuments.in/reader033/viewer/2022061208/548af034b47959a76a8b4648/html5/thumbnails/5.jpg)
Collision plate boundary
![Page 6: Lesson 2 Plate Tectonics And Volcanoes](https://reader033.fdocuments.in/reader033/viewer/2022061208/548af034b47959a76a8b4648/html5/thumbnails/6.jpg)
Conservative plate boundary
![Page 7: Lesson 2 Plate Tectonics And Volcanoes](https://reader033.fdocuments.in/reader033/viewer/2022061208/548af034b47959a76a8b4648/html5/thumbnails/7.jpg)
Task
• Label the key features at the four plate boundaries.
• Then cut them out and stick them into your books.
• Underneath each I want a sentence to explain what is happening– Which way are the plates moving.– What happens as a result.
![Page 8: Lesson 2 Plate Tectonics And Volcanoes](https://reader033.fdocuments.in/reader033/viewer/2022061208/548af034b47959a76a8b4648/html5/thumbnails/8.jpg)
Homework.
• To find out the date and location of a recent earthquake and volcano and the impact these had on human activity.
![Page 9: Lesson 2 Plate Tectonics And Volcanoes](https://reader033.fdocuments.in/reader033/viewer/2022061208/548af034b47959a76a8b4648/html5/thumbnails/9.jpg)
Plate definitions
![Page 10: Lesson 2 Plate Tectonics And Volcanoes](https://reader033.fdocuments.in/reader033/viewer/2022061208/548af034b47959a76a8b4648/html5/thumbnails/10.jpg)
Volcanic bombs, ash, lava, gases
Magma chamber
Parasitic cone
Crater
Main vent
Label this cross section of a volcano
![Page 11: Lesson 2 Plate Tectonics And Volcanoes](https://reader033.fdocuments.in/reader033/viewer/2022061208/548af034b47959a76a8b4648/html5/thumbnails/11.jpg)
Active volcano – liable to erupt.
![Page 12: Lesson 2 Plate Tectonics And Volcanoes](https://reader033.fdocuments.in/reader033/viewer/2022061208/548af034b47959a76a8b4648/html5/thumbnails/12.jpg)
Dormant (sleeping) volcano – a volcano which has not erupted for
many years
![Page 13: Lesson 2 Plate Tectonics And Volcanoes](https://reader033.fdocuments.in/reader033/viewer/2022061208/548af034b47959a76a8b4648/html5/thumbnails/13.jpg)
Extinct volcano – a volcano which has not erupted for many
thousands or millions of years
![Page 14: Lesson 2 Plate Tectonics And Volcanoes](https://reader033.fdocuments.in/reader033/viewer/2022061208/548af034b47959a76a8b4648/html5/thumbnails/14.jpg)
Types of Volcano
Composite Volcano Shield Volcano
![Page 15: Lesson 2 Plate Tectonics And Volcanoes](https://reader033.fdocuments.in/reader033/viewer/2022061208/548af034b47959a76a8b4648/html5/thumbnails/15.jpg)
Shield Volcano
• Occur at Constructive Plate Boundaries.
• Runny Lava that flows along way from the main vent.
• Gives the volcano gentle sides.
• Shield volcanoes almost never erupt violently due to the lava running free (no rocks).
![Page 16: Lesson 2 Plate Tectonics And Volcanoes](https://reader033.fdocuments.in/reader033/viewer/2022061208/548af034b47959a76a8b4648/html5/thumbnails/16.jpg)
Composite Volcanoes.
• Occur st destructive plate boundaries.
• Viscous (thick lava)
• The lava cannot flow far from the vent.
• Makes the volcano steep sided.
• Violent eruptions due to rapidly hardeneing rock which blocks vents and allows the pressure to build.
![Page 17: Lesson 2 Plate Tectonics And Volcanoes](https://reader033.fdocuments.in/reader033/viewer/2022061208/548af034b47959a76a8b4648/html5/thumbnails/17.jpg)
Dominoes.
• Lets test your knowledge so far.