American time bomb.

Discussion in 'Earth Science' started by R1D2, May 30, 2012.

  1. R1D2 many leagues under the sea. Valued Senior Member

    Messages:
    2,300
    :idea: Here is something to think about!!!
    Yellow Stone is the American time bomb.
    Underneath Yellow Stone is a SUPER VALCANO! An its over due to erupt!!
    :bugeye:
     
  2. Google AdSense Guest Advertisement



    to hide all adverts.
  3. spidergoat Valued Senior Member

    Messages:
    51,727
  4. Google AdSense Guest Advertisement



    to hide all adverts.
  5. KilljoyKlown Whatever Valued Senior Member

    Messages:
    6,493
    I found the following article that expresses a real lack of concern. He could be right, but he really didn't say anything to make a believer out of me. Also, the fact is, it will erupt sooner or later and even if that's 200 years from now, it will still pretty much take out the United States very fast. Some of the population might be safe from the initial eruption, but not from the aftermath confusion and disruption. Really hope I'm not alive when it happens.

     
  6. Google AdSense Guest Advertisement



    to hide all adverts.
  7. KilljoyKlown Whatever Valued Senior Member

    Messages:
    6,493
  8. R1D2 many leagues under the sea. Valued Senior Member

    Messages:
    2,300
  9. Fraggle Rocker Staff Member

    Messages:
    24,690
    Would all that ash in the air reduce the sunlight and cause both a cold wave and a famine?
     
  10. Crunchy Cat F-in' *meow* baby!!! Valued Senior Member

    Messages:
    8,423
    Cold wave yes. The right 1/3 of the U.S. would be unaffected. The middle 1/3 of the U.S. would have a nice perpetual sooty winter for years to come. The left 1/3 of the U.S. would be evacuated or dead.
     
  11. R1D2 many leagues under the sea. Valued Senior Member

    Messages:
    2,300
    An don't forget when yellow stone blows its top a huge chunk of the U.S. An anything there will vaporize. An everything that's in the atmosphere will make it hard to breath. An kill crops. An slam us into a ice age
     
  12. R1D2 many leagues under the sea. Valued Senior Member

    Messages:
    2,300
    Oh an seperate the U.S. in two.
     
    Last edited: May 30, 2012
  13. KilljoyKlown Whatever Valued Senior Member

    Messages:
    6,493
  14. Neverfly Banned Banned

    Messages:
    3,576
    There's a big heavy chunk of crustal plate sitting on top of this thing. It won't blow anytime soon- the massive amount of pressures required to lift a plate just aren't and won't be there.
     
  15. KilljoyKlown Whatever Valued Senior Member

    Messages:
    6,493
    But wasn't it there the last time it blew? Also it doesn't have to lift the whole plate just the part above the magma chamber, and it is starting to bulge a bit. That's never a good sign.
     
  16. Neverfly Banned Banned

    Messages:
    3,576
    No...
    let me find some citations.
    I had looked pretty deeply into this about a year ago.
     
  17. R1D2 many leagues under the sea. Valued Senior Member

    Messages:
    2,300
    http://www.huffingtonpost.com/mobileweb/2011/04/13/yellowstone-supervolcano-2011_n_848681.html
    Yellowstone 'Supervolcano' May Be Larger Than Previously Thought
    The Huffington Post

    It's kind of a scary thought to consider the possibility that a 'supervolcano' could be even bigger than scientists initially believed.
    The volcanic mass, known as the Yellowstone Caldera or more commonly the Yellowstone Supervolcano, was previously measured at about 25 miles by 37 miles wide. However, a new study, set to be published in the Geophysical Research Letters journal says there may be more to it than that.
    Using a new method of magnetic imaging, scientists have come to theorize that the plume feeding the underground volcano could extend further than seismic measurements taken in 2009 suggest.
    From the BBC:
    The new study, using electrical conductivity, can only see about 320km (200mi) below ground.

    But it shows the conductive part of the plume dipping more gently, at an angle of perhaps 40 degrees to the west, and extending perhaps 640 km (400 miles) from east to west.
    The caldera has seen quite a bit of activity in recent years. According to National Geographic, some areas of Yellowstone have seen the ground rise as much as much as 10 inches as a result of swelling magma.
    However, the ground has swelled and reduced numerous times over the years. While ground swelling can be a sign of a pending explosion, such as in the case of Mt. St. Helens, it doesn't necessarily mean an eruption is looming, according to NatGeo.
    The last eruption of the 'supervolcano' occurred 640,000 years ago, and resulted in the miles-wide crater that currently takes up a large swath of Wyoming.

    SHARE THIS STORY
     
    Last edited: May 30, 2012
  18. R1D2 many leagues under the sea. Valued Senior Member

    Messages:
    2,300
    http://volcanoes.usgs.gov/volcanoes/yellowstone/yellowstone_geo_hist_53.html
    Here is another interesting site here is some of it.
    Three extraordinarily large explosive eruptions in the past 2.1 million years each created a giant caldera within or west of Yellowstone National Park with the spread of enormous volumes of hot, fragmented volcanic rocks as pyroclastic flows over vast areas within times as short as a few days or weeks.

    Also I found from that web address
    Summary of Eruption History


    Columnar jointed lava flows from 1.3 million years ago at Narrows of the Grand Canyon of the Yellowstone River.

    The Yellowstone Plateau volcanic field developed through three volcanic cycles spanning over two million years and including two of the world's largest known eruptions. The >2450 km3 (588 mi3) Huckleberry Ridge Tuff erupted about 2.1 million years ago, creating a large, approximately 75 km (47 mi) wide, caldera and thick volcanic deposits. A second cycle concluded with the eruption of the much smaller Mesa Falls Tuff around 1.3 million years ago. Activity subsequently shifted to the present Yellowstone Plateau and culminated 640,000 years ago with the eruption of the >10003 km (240 mi3) Lava Creek Tuff and consequent formation of the 45 x 85 km (28 x 53 mi) caldera. Large volumes of rhyolitic lava flows (approximately 600 km3 (144 mi3) were erupted in the caldera between 180,000 and 70,000 years ago, distributed primarily along two north-south alignments of vents. No magmatic eruptions have occurred since then, but large hydrothermal explosions have taken place during the Holocene, including near Yellowstone Lake. Uplift and subsidence of the ground surface is centered on two uplifted regions (the Mallard Lake and Sour Creek resurgent domes). Yellowstone is presently the site of one of the world's largest hydrothermal systems including Earth's largest concentration of geysers.
     
    Last edited: May 31, 2012
  19. KilljoyKlown Whatever Valued Senior Member

    Messages:
    6,493
    Is that a little bit of concern I'm hearing from you? Considering how much we know about volcano's and super volcano's in particular. I think we should all be concerned and we sure need to know more than we do now.
     
  20. Neverfly Banned Banned

    Messages:
    3,576
    Concern is absolutely fine- what bothers me is 'fear-mongering.'

    On this issue, we have a real situation. One that has potential- a caldera which has seen massive eruptions in the past. Does that have potential? Yes. However, potential needs to be verified.
    Geologists have given that area a colonoscopy. What I read was in a geology Journal, over a year ago, now. I cannot remember the name of that journal, now. So I need to find it and post those results here. Problem is: This is not what I want to read about or talk about today. Had the day off...
    I don't WANT to sit here and read about geology, - so it will have to wait until I get around to doing it.
    The other problem is wading through all the B.S. links and hits a google search will turn up. Lots of sensationalism and very little science.

    The gist of it is that the geolgists had reported in that journal that the area was "capped off" by the massive North American tectonic plate. Beneath that cap is a Plume, creating a hot spot. This hot spot is more than enough to give us the hot springs and geysers- but it has insufficient power (by Far) to lift up or break through a Plate.
    There was a fault line, a crack in the plate. That was 2 millions years ago and drat blast it- the datgummed thing has moved since then while the plume has stayed stationary.
    The faultline moved west of the plume and the North American plate moved over the top of it- effectively putting a lid on it.

    What disturbed me was fearmongering- Like Discovery Channel, which presented this frightening probability, and gave little to no mention of the actual published results. It was sensational-
    -SuperVolcano threatens North American Continent.*




    *"Threatens" being a subjective word. Actual probability of explosive eruption minimal due to big ass tectonic plate in the way. Ratings are important. Please spay and neuter your pets.
     
  21. Neverfly Banned Banned

    Messages:
    3,576
    http://geology.isu.edu/Digital_Geology_Idaho/Module11/Beranek_etal_2006.pdf
    http://geology.isu.edu/Digital_Geology_Idaho/Module11/Link_etal_2005.pdf

    Basics on the history and formation of part of the area- how this relates to the faultline that gave access in the past and its migration.

    I think the journal I had read was University of Utah Geology dept. and a couple of USGS links- I'm still hunting.


    Edi to add:
    This is not really relevant since we probably won't be seeing such a thing- but it's a cool picture that came up on google and thought I'd share

    Please Register or Log in to view the hidden image!


    Please Register or Log in to view the hidden image!

     
  22. KilljoyKlown Whatever Valued Senior Member

    Messages:
    6,493
    You saw that too? That was impressive wasn't it? The asteroid strike was also very impressive. As a matter of fact they showed a whole list of impressively vary bad shit happening to us. Also, don't you just love it when they say it's not if it will ever happen, but when it will happen?

    Please Register or Log in to view the hidden image!

     
  23. Neverfly Banned Banned

    Messages:
    3,576
    Exactly.
    But this is the same source that told us about UFO's and jet pilots "confessions of sighting UFO's"- completely making things out to be what it wasn't.
    It's a job well done- as well done as Ben Steins, "Expelled."

    Well done at misrepresentation.
     

Share This Page