Download presentation
Presentation is loading. Please wait.
Published byNeil Shepherd Modified over 9 years ago
1
Get out: Earthquake notes 5-2 Homework
2
Volcanoes and Plate Tectonics Section 9-2
3
What is a volcano? A weak spot in the crust where magma comes to the surface. Magma at surface = lava
4
Earth’s Active Volcanoes
5
Volcanoes at Divergent Boundaries Volcanoes form along the mid-ocean ridge, as lava escapes from cracks in the ocean’s floor.
6
Volcanoes at Convergent Boundaries Volcanoes often occur near plate boundaries as a result of subduction.
7
Volcanoes at Convergent Boundaries Island Arcs occur when 2 pieces of oceanic crust collide.
8
Hot Spot Volcanoes Super hot areas of the mantle melt through the crust to form Hot Spot volcanoes.
9
Hot Spot Volcanoes Hawaii
10
Hot Spot Volcanoes Yellowstone
14
Let’s Review! What is a volcano? What is lava? Why do volcanoes form at divergent boundaries? Why do volcanoes form at convergent boundaries? Why do volcanoes form at hot spots?
15
Homework Read 6-1 6-1 R/R due Friday
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.