Is Yellowstone Going to Erupt?

Discussion in 'Earth Science' started by soullust, May 4, 2010.

  1. nietzschefan Thread Killer Valued Senior Member

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    The last super volcano eruption(~80000YA) dropped humanity to less than 2000 pairs...oddly some of the survivors were right near the volcano (Toba).
     
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  3. Trippy ALEA IACTA EST Staff Member

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    And when the Taupo supervolcano went up last time, there were surviving ecological niches within tens of km of the blast site - in the blast shadows of large hills, for example.
     
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  5. ScaryMonster I’m the whispered word. Valued Senior Member

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    You mean with one of these?

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    The thing about Supervolcanoes is that the magma is thicker then in ordinary volcanoes and the gases can’t bubble up through viscous magma.
    Pressure builds up causing the gases to escape violently causing a huge eruption, so the problem is the gases that can’t escape and the thickness of the magma. Pressure builds up and CA BOOM!

    Volcanic eruptions are ordered in magnitude from 0 to 8 with each point being 10 times larger then the next.
    Mt St Helen’s which is generally considered to be a large eruption is about magnitude 5 and if you represented the amount of material it threw up in to the stratosphere as big a rubic’s cube then amount that the Supervolcano Taupo threw up 75 thousand years ago would be a cube a meter and a half squared.

    It has been estimated that when Taupo went up the Earth’s human population was reduced to the thousands.
    They worked out through Mitochondrial DNA that the human race almost became extinct around that time.
     
    Last edited: May 4, 2010
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  7. doodah Registered Senior Member

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    How would you do this? Why do you think it would relieve the pressure? Where would you tunnel?
     
  8. ScaryMonster I’m the whispered word. Valued Senior Member

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    Messing around with it is actually more likely to trigger an eruption then stop it, remember when the side of Mt St Helen's slide off it actually uncorked it even more.
     
  9. cosmictraveler Be kind to yourself always. Valued Senior Member

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    I'd use this...

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    If you would let the magma ooze out slowly then it would.t build up pressure. I would have to locate the magma vent first then take a 100 to 90 degree route towards the vent.
     
  10. Trippy ALEA IACTA EST Staff Member

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    I believe you're actually referring to Toba here.
    Toba's eruption weighed in at 2000-3000 km[sup]3[/sup] DRE.
    This would, in essence, be a cube 12-14km on each side.

    There is one theory that suggests that the YTT eruption may have reduced the Human population to 1000-10000 breeding pairs.

    Having said that, there's evidence in India (all of India was covered in 15cm of ash) that suggests that a population of humans survived the eruption in India.

    Also consider, for example, this http://news.sciencemag.org/sciencenow/2010/01/19-02.html which suggests that a bottleneck coincident with Toba may have been unneccessary.
     
  11. soullust Registered Senior Member

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    It might be possible if you sent the lava into the Pacific and drilled up from beneith the lava pool, but i sure as hell would not want to be in the tunneler when it breaks through, we can pay you to do that k

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  12. soullust Registered Senior Member

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    That is one of the reasons why if one part of the massive Volcano goes off there will be a good chance, it will Blow the rest of them.

    Sudden shift in Pressure from one eruption could Open up the ground for the hole damn thing to erupt again. and it will erupt, even if it did blow b4, Old faithful Proves there is still energy being released there from it's core.

    And it is kind of scary actually Imagine if an enemy (Terrorist)

    Decided to try and bomb or Sabotage yellow stone and succeeded, fairly quick win.:shrug:
     
  13. joepistole Deacon Blues Valued Senior Member

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    Probably do it robotically. But there are two issues:

    - the penetration has be to signficiant enough to release enough disolved gasses to make a difference in overall pressure levels with in the magma.

    - You need to be able to control the release. You do not want to cause and erruption by pricking the bubble that release the gases all at once.
     
  14. cosmictraveler Be kind to yourself always. Valued Senior Member

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    The thing to do is only tunnel to within 50 feet or so of the maga vent then remove the machine and place dynamite charges to remove the final few feet.
     
  15. joepistole Deacon Blues Valued Senior Member

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    Why not build a massive geothermal plant over the entire area and in the process cool the hot spot off a bit?
     
  16. cosmictraveler Be kind to yourself always. Valued Senior Member

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    Because the heat is generated far below the surface of the earth.
     
  17. joepistole Deacon Blues Valued Senior Member

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    I don't think this issue is where the heat is generated rather than where the heat presents itself. And at the moment, you do not have to drill very far before you find a lot of heat...enough heat to cause water to boil...wittness the geisers at the park.
     
  18. Enmos Valued Senior Member

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    It's a national park..
     
  19. jmpet Valued Senior Member

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    Yes- the Mega-Volcano that formed the North American continent a billion years ago is going to erupt tomorrow. Run! Flee!!! Run for your lives! Scream and run in circles!!!
     
  20. sifreak21 Valued Senior Member

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    its not really a matter of if its going to erupt its when its going to erupt and yes it is a supervolcano
     
  21. joepistole Deacon Blues Valued Senior Member

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    True, and one day it will be an errupting volcano unless we can stop it. Just imagine how much electricity we could get out of the place. We could employ a lot of people...maybe even become energy independent.

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  22. jmpet Valued Senior Member

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    Yellowstone is not going to erupt tomorrow; it's not going to erupt a hundred years from now. We'll know when it's about ready to erupt- there'll be all kinds of new geysers and shit all over the place to warn us before it happens. It ain't happening in your lifetime. Why do threads like this persist? Is it the shock value of the thread title? LMK-
     
  23. ScaryMonster I’m the whispered word. Valued Senior Member

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    It’s not that easy.
    It's the pressure of the magma that actually preventing it from erupting removing that would make it easier for that gases to escape. An example in point there’s a volcano in Iceland that been dormant for a long time, melting of the ice sheet (Global Warming) removed pressure from the top of this volcano and Wango! It erupted, volcanologists reckon that it’s going to go off every 30 years from now on.
    Now in a cauldera Volcano like Yellowstone it’s the gas in combination with the magma that’s going to cause it to explode, more and more gas is going to leach into the system and the pressures going to build up.
     

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