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Welcome to the 50th state!
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Hawaii – The Big Island
• Made of 5 volcanoes
• Most active volcano – Kilauea
• Two types of lava– Pahoehoe
• Smooth surface
– A’a• Rugged suface
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Pacific plate moves over a hot spot
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Let’s concentrate on Hawaii
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Which way does the lava go?
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• Mauna Kea is a dormant volcano in the Hawaiian Islands
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Kilauea volcano is one of the most active on Earth.
Halemaumau Crater at Kilauea's summit.
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This is a collapsed caldera on Kilauea
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Hawaii’s volcanoes are shield volcanoes.They are over a hot spot.They erupt continuously.
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Lava flows
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The overlook at Puu Puai provides an excellent view of the Kilauea Iki pit crater
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Caldera
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In the caldera
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A great example of pahoehoe
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Magma erupts and then sinks as it cools and hardens
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Examples of both kinds of lava
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The end of the ROAD!
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Lava flows to the sea and creates new land.
• The island of Hawaii is growing.
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Minerals in the lava make the soil fertile. Plants grow quickly.
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More steam vents
• What’s that smell?
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Hot lava
• What kind of lava is this?
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Lava is rich in minerals so plants grow quickly.
Evidence that plants don’t need soil - only minerals, water, sun, carbon dioxide.
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More lava
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Really?
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What is this?
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1984 Mauna Loa eruption
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cools and hardens
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Another picture
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Another lava picture!!!
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It doesn’t take long
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Just another day in paradise