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kokende bodems

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by

Gerdien Wassenaar

on 26 September 2016

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Transcript of kokende bodems

kokende bodems
Yellowstone
- nationaal park ,
- 400 werkzame geisers
- meer dan 500 mm regen / sneeuw
- yellow stone = gele steen
- old faithful = oude betrouwbare
voormalige vulkaan
600.000 jaar geleden vulkaanuitbarsting:
krater van 90 km

de geiser
Geysir = IJslands woord, "spuiter"

ontstaan geiser
grondwater - poreus gesteente - magma - druk
-wat is Yellowstone, waar ligt het?
- waarom is het bijzonder?
- enkele kenmerken van heetwaterbronnen
- wat is werking van heetwaterbron?
- waar komen ze voor en waarom daar?
- waar kan je ze voor gebruiken?
Lesdoelen
vulkanische verschijnselen:
- 400 geisers
- 10.000 heetwaterbronnen
- modderpotjes
- stoomgat
kalkterrassen
Full transcript