Download - H6 p4 vulkanen
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H6 § 4 vulkanisme
Endogene krachten: Vulkanen
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Deze les
• 2 soorten vulkanen
• Hoe ontstaan ze?
• Waar ontstaan ze?
• “Ring of fire”
• Waarom ontstaan ze daar?
• Geothermische verschijnselen
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Type vulkanen
• Strato- of kegelvulkaan
• Schildvulkaan
(en Caldera’s)
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Kegelvulkaan
• Komt voor bij subductiezones dus bij convergerende platen.
• Dik, stroperig magma
• Explosief
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Ring of Fire
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Schildvulkaan
• Boven “hotspots”
• Dunne lava vloeit ver uit
• Basaltisch
• Eilandenrijen
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IJsland
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Caldera
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Krakatau
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Geothermische verschijnselen
• Geisers
• Fumaroles
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Fumaroles
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Geiser
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