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Different Types of Volcanoes We are learning about different types of volcanoes.

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Presentation on theme: "Different Types of Volcanoes We are learning about different types of volcanoes."— Presentation transcript:

1 Different Types of Volcanoes We are learning about different types of volcanoes.

2 Composite Cone The volcano is built up of alternate layers of LAVA and ASH. They can explode with great violence. Mt St Helens - USA Conelet Dyke Crater Ash layer Lava Layer Flank eruption Lava Flow Crust Pyroclastic Flow

3 Mount Saint Helens, USA

4 Shield ( Basic) Cone Shield Volcanoes are enormous features built up only from layers of lava. They produce lots of lava but they tent not to erupt violently. Mauna Loa Hawaii -USA 250 miles 10,000m Composite volcano to scale Layers of LavaLava Flow

5 Mauna Loa, Hawaii

6 Soufriere Hills, West Indies

7 Ash and Cinder Cone Paracutin - Mexico Layers of Ash and Cinder Volcanic Bombs Pipe The volcano is built up of layers of ASH. When it erupts it is normally with great explosive force. 3,000m

8 Heimaey, Iceland

9 We are learning about different types of rocks

10 Do you think this feature is natural or man-made? Is it hard or soft rock? What types of rock can you name?

11 Granite Slate Marble Chalk Limestone Sandstone Basalt

12 IgneousMetamorphicSedimentary

13 Made from basalt and Shale that has been pressurised Made from sand that has been squashed together sandstone marble schists basalt limestone granite Made from the shells And skeletons of sea creatures Squashed together Made from limestone that has been subjected to heat and pressure Made from magma which Has cooled inside the Earths crust.

14 Made from basalt and Shale that has been pressurised Made from sand that has been squashed together sandstone marble schists basalt limestone granite Made from the shells And skeletons of sea creatures Squashed together Made from limestone that has been subjected to heat and pressure Made from magma which Has cooled inside the Earths crust.

15 We are learning about the location of different rock types in the UK

16 Chalk and Clay

17 Limestone

18 The Tees-Exe line Tees - Exe line

19 The Tees-Exe line The general pattern is the rock to the SE of the line is soft e.g. chalk and clay. Rock to the NW of the line is harder e.g. Granite.

20 Describe the distribution of rock types in the British Isles Talk about the pattern of where the different rock types are. Use your planner map or an atlas, locating and naming places.

21 We are learning about different types of weathering and how they affect different rocks

22 Do you think this feature is natural or man-made? Is it hard or soft rock? This rock feature was created by weathering try to explain how.

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25 We are learning about different the characteristics and features of granite landscapes

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27 Where is Dartmoor?

28 How are Tors formed?


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