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Aim: What are hydrothermal Vents?. The mid ocean ridge. The mid-ocean ridge is a point in the middle of the ocean where plates are diverging Moving apart This is known as a central rift valley Water seeps into the crack that forms

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the mid ocean ridge
The mid ocean ridge
  • The mid-ocean ridge is a point in the middle of the ocean where plates are diverging
  • Moving apart
  • This is known as a central rift valley
  • Water seeps into the crack that forms
  • This water forces its way back to the surface through hydrothermal vents or deep-sea hot springs
slide3
The water coming from the vents is warm
  • 10-20 degrees Celsius (50 to 60 F)
  • This is much warmer than the surrounding water
  • A few are upwards of 350 C
what are black smokers
What are black smokers?
  • The water coming from these vents is filled with minerals
  • mainly sulfides
  • The warm water cools when it hits the ocean
  • The minerals cool and solidify, depositing the minerals around the vent
  • Black smokers are one type of mineral deposits around hydrothermal vents
slide5
The mineral deposits build up around the vents creating chimney-like structures

The smoke is a cloud of dense mineral particles

is there any great importance to these smokers
Is there any great importance to these smokers?
  • Life!
  • In this dark cold portion of the planet the “smokers” give life
  • The heat from the vents warms
  • The water is rich in nutrients and minerals
  • All types of life exists by the vents
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