Volcanoes
6 different types of volcanoes with description and characteristics 5 different types of eruption
6 different types of volcanoes with description and characteristics 5 different types of eruption
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Rebecca Vorburger
Rebecca Vorburger
Set of flashcards Details
| Flashcards | 11 |
|---|---|
| Language | English |
| Category | Geography |
| Level | Secondary School |
| Created / Updated | 24.06.2013 / 24.06.2013 |
| Weblink |
https://card2brain.ch/box/volcanoes
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Cinder cones
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- built from loose material (particles) -> solidify and falls
- round, flat, bowl-shaped crater
- at destructive zones
Stratovolcanoe
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- built from alternating lava layers, lava flows through vent or fissures
- steep-sided, symmetrical, snow on top
- at destructive zones
Shield volcano
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- built from highly fluid lava -> widely spread
- at constructive zones
Lava Domes
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- built from viscous lava (bulbous), dome grows by expension from within
- at constructive zones
Calderas
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- magma chamber is emptied in one eruption -> collapses down -> secondary vents from within the crater
- most at constructive zones, sometimes destructive
Maar
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- built from explosions caused by groundwater coming into contact with hot magma
- crater filled with water
- at destructive zones
Hawaiian Eruption
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- fluid, mafic lava
- fountaining and lava flows
- constructive margins
-> Kilauea
Strombolian Eruption
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- every few minutes
- explotion of lava due to escaping gas bubbles
- destructive margins
Surtseyan Eruption
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- mostly mafic
- magma interacts explosive with water
- undersea volcano
- destructive margins
Vulcanian Eruption
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- short, violent, small explotion of viscous magma
- tephra, ash clouds, pyroclastic demsity currents
- destructive margines
Plinian Eruption
- very viscous lava
- eruption columns of gas and ash
- falls of ashes, scoria, lava bombs, pyroclastic density currents
- destructive margins
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