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A Supervolcano Beneath Mt. St. Helens?

We've discussed the supervolcano beneath Yellowstone a few times here (not going to blow, 2004; going to blow, 2008). Now scientists are pondering whether a large area of conductive material beneath Mt. St. Helens might contain enough magma that the area could be classed a supervolcano. The jury is still out on this one. Reader nhytefall sends us a New Scientist progress report. "Magma can be detected with a technique called magnetotellurics, which builds up a picture of what lies underground by measuring fluctuations in electric and magnetic fields at the surface. The fields fluctuate in response to electric currents traveling below the surface, induced by lightning storms and other phenomena. The currents are stronger when magma is present, since it is a better conductor than solid rock. ... [M]easurements revealed a column of conductive material that extends downward from the volcano. About 15 km below the surface, the relatively narrow column appears to connect to a much bigger zone of conductive material. This larger zone was first identified in the 1980s by another magnetotelluric survey, and was found to extend all the way to beneath Mount Rainier 70 km to the north-east, and Mount Adams 50 km to the east. It was thought to be a zone of wet sediment, water being a good electrical conductor. ... [Some researchers] now think the conductive material is more likely to be a semi-molten mixture. Its conductivity is not high enough for it to be pure magma.. so it is more likely to be a mixture of solid and molten rock."

4 of 180 comments (clear)

  1. Re:i just got off the toilet by Anonymous Coward · · Score: -1, Flamebait

    ...and I just shit out a Michelle!

    Hey, if we put them both on the floor and stomped on them do you think that we could also make Malia and Sasha from the splatter?

  2. Re:i just got off the toilet by Anonymous Coward · · Score: -1, Flamebait

    Why the fuck do journalists pretend that Michelle Obama is some kind of supermodel? She looks like a gorilla with makeup. There are some hot black girls, but she's not one of them. It's nice that she has skinny arms and didn't blow up like a cow (or nigger bitch) when she popped out the shorties, but age adjusted, she's got to be one of the ugliest first ladies ever.

  3. New Sensationalist again by Charles+Dodgeson · · Score: 0, Flamebait

    See this comment and the reply to it.

    For more than ten years the New Sensationalist has been predicting catastrophes, world changing technologies, and the like. It's about time someone tried to call them on it.

    --
    Prime numbers are exactly what Alan Greenspan says they are -S. Minsky
  4. Re:Gov. Jindal isn't worried by Anonymous Coward · · Score: -1, Flamebait

    Yeah, blame it on "Republican mod bombers". Leftist idiot. Make up an enemy whenever people disagree with you. You're as bad as the righties you seem to loathe to the point of becoming irrational.

    First off: Maybe some of us Libertarians like smaller government, and less money spent on things like this (and foreign expeditions etc).

    Second:How the hell is this supposed to "stimulate" economic activity? Bad legislation is bad legislation if you take off your ideological blinders. - if its deserving of the public funding, have it pass on its own merit as part of the nomral process, with actual discussion and debate of the mertis and demerits and costs.

    Third: the New Orleans mess happened under DEMOCRATS, not Jindal. And your racist insinuations about Louisiana and "yankees" are pure idiocy, and proof positive that you have no real point other than attacking along bigoted lines.

    In short, you lose. Try coming to your senses.