VOLCANOES AT HOTSPOTS TECTONIC HAZARDS. IN THIS LESSON YOU WILL DISCOVER : (I) The reason why some volcanoes do not occur on plate boundaries. (II) What.

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Presentation transcript:

VOLCANOES AT HOTSPOTS TECTONIC HAZARDS

IN THIS LESSON YOU WILL DISCOVER : (I) The reason why some volcanoes do not occur on plate boundaries. (II) What happens to volcanoes located over a hotspot as they are carried away by the tectonic plate. 2

3 Study the distribution of volcanoes shown on Figure 2. Where is Kilauea located? Kilauea is located in the middle of the Pacific Ocean far from plate boundaries.

4 Underwater volcano Extinct volcanoes

WHY? You are going to watch a short video on the formation of hotspot volcanoes. 1- Study activity 1 on the Hotspots worksheet. 2- Watch and listen! 3- Watch the video again to complete your answers! 5- Discuss your answers with the student seated beside you.

A FEW KEY WORDS TO HELP YOU Solid part of the mantle Semi-molten part of the mantle (magma) Motion=movement Intrusion: Magma slowly pushes up from deep within the earth into any cracks or spaces it can find. An extinct volcano is not expected to erupt again. Stationary: which doesn’t move. VIDEO Mantle Plume: A column of hot rock rising inside the mantle

TIME TO SHARE YOUR ANSWERS

plume seamounts stationary underwater upwards active boundaries chain changes direction erosion erupts extinct hot interior melts moves new

FIGURE FOR ACTIVITY 2