albertperpinya

26 Aug 2010 459 views
 
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photoblog image Geysir

Geysir

Water at a depth of 23 metres is around 120°C, but cannot boil because of the weight of the water pushing down on it from above. When this water is forced up to around 16 metres, some of the water may be above boiling point, and this sets off the chain reaction we see. The pressure decrease allows more water to boil and flash boil into steam, which drives the unboiled water further up the conduit. As this happens closer and closer to the surface, with increasing velocity, the water and steam is forced out, and it is this mixture of water & steam that forms the eruption.

Geysir

Water at a depth of 23 metres is around 120°C, but cannot boil because of the weight of the water pushing down on it from above. When this water is forced up to around 16 metres, some of the water may be above boiling point, and this sets off the chain reaction we see. The pressure decrease allows more water to boil and flash boil into steam, which drives the unboiled water further up the conduit. As this happens closer and closer to the surface, with increasing velocity, the water and steam is forced out, and it is this mixture of water & steam that forms the eruption.

comments (7)

  • Chris
  • England
  • 26 Aug 2010, 05:42
Utterly fascinating Albert: thank you for the explanation of this phenomenon
Albert Perpinyŕ: Thank YOU Chris
I have learnt something today. Nice picture too
Albert Perpinyŕ: Cheers Bill
  • zed
  • Australia
  • 26 Aug 2010, 07:57
L remember seeing this in new zealand...amazing reaction
Albert Perpinyŕ: Really. Thanks Tony
Wow, great explosion in nature!!
Albert Perpinyŕ: The power of Nature
  • vintage
  • Brisbane Australia
  • 26 Aug 2010, 11:31
Good information Albert Love the photos
Albert Perpinyŕ: Thanks
Very informative Albert, thankyou.
Albert Perpinyŕ: Thank YOU Brian
Fascinating images! I bet this could give you quite a shock if you weren`t expecting it. (:o)
Albert Perpinyŕ: It happens regularly every 7 to 10 minutes.

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