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3 TYPES OF VOLCANOES. SHEILD HOW DO THEY FORM? Thin layers of lava pour out a vent and harden on top of previous layers.

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Presentation on theme: "3 TYPES OF VOLCANOES. SHEILD HOW DO THEY FORM? Thin layers of lava pour out a vent and harden on top of previous layers."— Presentation transcript:

1 3 TYPES OF VOLCANOES

2 SHEILD

3 HOW DO THEY FORM? Thin layers of lava pour out a vent and harden on top of previous layers

4 TYPE OF ERUPTION AND LAVA Quiet eruption with thin, runny lava

5 PHYSICAL DESCRIPTION Wide, flat gently sloping mountain

6 2 EXAMPLES AND THEIR LOCATIONS Mauna Kea, Mauna Loa and Kilauea in the Hawaiian Islands

7 CINDERCONE

8 HOW DO THEY FORM? Thick lava produces ash, cinders and bombs, which pile up around the vent forming a steep cone shaped pile

9 TYPE OF ERUPTION AND LAVA Explosive eruption with thick magma (which will produce ash, cinder, bombs and a pyroclastic flow)

10 PHYSICAL DESCRIPTION Tall, pointed, steep, cone shaped hill or mountain

11 2 EXAMPLES AND THEIR LOCATIONS Sunset Crater in Arizona and Eldfell in Iceland

12 COMPOSITE OR STRATO

13 HOW DO THEY FORM? Quiet eruptions with lava flows alternating with explosive eruptions of ash, cinders and bombs

14 TYPE OF ERUPTION AND LAVA Quiet and explosive eruptions with either thin or thick lava respectively

15 PHYSICAL DESCRIPTION Tall cone shaped mountain with alternating layers of lava and ash

16 2 EXAMPLES AND THEIR LOCATIONS Mt. Fuji in Japan and Mt. St. Helens in Washington


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