Slashdot Mirror


Huge Reservoir Discovered Beneath Asia

anthemaniac writes "Seismic observations reveal a huge reservoir of water in Earth's mantle beneath Asia. It's actually rock saturated with water, but it's an ocean's worth of water ... as much as is in the whole Arctic Ocean. How did it get there? A slab of water-laden crust sank, and the water evaporated out when it was heated, and then it was trapped, the thinking goes. The discovery fits neatly with the region's heavy seismic activity and fits neatly with the idea that the planet's moving crustal plates are lubricated with water."

21 of 273 comments (clear)

  1. So THAT's where all the water went by Anonymous Coward · · Score: 5, Funny

    ... after Noah's Flood! This proves the existence of God! Suck it, James Cameron!!!12!!

  2. be like the Earth by Anonymous Coward · · Score: 5, Funny
    the planet's moving crustal plates are lubricated with water.



    Be like the Earth: use water-based lubricants, kids.

  3. dammit! by Anonymous Coward · · Score: 5, Funny

    There goes my astroglide tectonics theory! Back to the drawing board...

  4. I get the same thing once in a while.... by blankoboy · · Score: 5, Funny

    but a tall glass of Prune juice always gets that trapped "slab of water-laden crust" out just fine.

  5. Venus by Tablizer · · Score: 5, Interesting

    The discovery fits neatly with the region's heavy seismic activity and fits neatly with the idea that the planet's moving crustal plates are lubricated with water."

    This may explain why Venus, a planet of similar size, appears to have a very different resurfacing mechanism. Venus's surface appears to "explode" once roughly every half-a-billion years, and then stay mellow until the next cycle. Thus, pressure probably builds up until a giant venusquake is eminant and kabam! Water on Earth appearently provides some lubrication such that the pressure is releived relatively gradually in comparison.

    1. Re:Venus by ZorbaTHut · · Score: 5, Insightful

      From the linked article:
      Scientists have very few answers, but they do know that the impact of a Yellowstone eruption is terrifying to comprehend. Huge areas of the USA would be destroyed, the US economy would probably collapse, and thousands might die.

      Thousands . . . might? In that situation I'd say "hundreds of thousands will" is far, far more likely.

      They're either hilariously overexaggerating the first part or hilariously underexaggerating the second.

      --
      Breaking Into the Industry - A development log about starting a game studio.
  6. Usefulness? by RealGrouchy · · Score: 5, Interesting

    So TFA states that there is good chance of there being lots of water beneath the crust in Asia. Okay, so that's water cooler (whoops...no pun intended) material.

    What would make it truly interesting (to non-seismologists) would be if that water were fresh (i.e. drinkable) and accessible (so it could be used as a drinking water supply).

    - RG>

    --
    Hey pal, this isn't a pleasantforest, so don't waste my time with pleasantries!
  7. Water based lubricants versus oil based lubricants by andy314159pi · · Score: 4, Funny

    planet's moving crustal plates are lubricated with water.
    The planet's crusts used to lubricate with oil based lubricants until it got the memo to switch to water based lubricants.
  8. Re:So THAT's where the flood water CAME FROM by rjamestaylor · · Score: 5, Interesting

    Genesis 7:11-12
    In the six hundredth year of Noah's life, in the second month, on the seventeenth day of the month, on the same day all the fountains of the great deep burst open, and the floodgates of the sky were opened.

    I see your snarky comment and raise it one Interesting one.
    --
    -- @rjamestaylor on Ello
  9. Sorry by encoderer · · Score: 4, Funny

    Sorry.. That's a string bet. This isn't the wild west. You must make your wager in one continuous play.

  10. Re:So THAT's where the flood water CAME FROM by Brad1138 · · Score: 5, Interesting

    The vast majority of sea life is VERY sensitive to the salinity of the water they live in. The sudden addition of fresh water would dilute the salt water to about 1/7 or 1/8 and would have either directly or indirectly killed all sea-life, completely destroying the only ecosystem left.

    --
    If you could reason with religious people, there would be no religious people
  11. Re:Combine that with the recent minerals by Shihar · · Score: 5, Insightful

    If the only thing you need to kick ass was mineral wealth, Japan should have just thrown themselves upon a sword and given up from day 1. Japan has absolutely no mineral wealth, nor does Hong Kong. Taiwan is pretty sparse in mineral wealth as well. Plenty of African nations are up to their necks in valuable things you can dig out of the ground.

    Mineral wealth is nice, but it is hardly a deal maker. China has some serious, crippling problems that is going to keep it from being the magical fairy tail land that people hope for. The demographic imbalances of China in the male to female ratio are horrifying and an invitation to civil strife. China's bureaucracy is corrupt and crippling to industry. China is very lucky it has 1.2 billion people running around it, because unlike the US, China's xenophobia does a handy job preventing it from doing a world wide brain drain as the US is so notorious for. China's government has its hands so far up the ass of its own economy that one incompetent move on the government could spell disaster for the entire nation's economy. We saw and example of this yesterday when the Chinese stock market dumped 10% of its value on a rumor that the government was about to do something dumb.

    China has some very sever problems. True, China is a big growth engine right now, but a lot of that has to do with the fact that China was so desperately poor in the past. The Chinese government has done some things right in opening up their markets. They have also managed to keep law and order (which set them well ahead of most of Africa) which counts for a lot. That said, China has some very sever organizational problems with their government. Unless China commits to a real restructuring of their government, I really don't fear all that much for the US position of #1 in the world economy.

  12. Re:China... by Timbotronic · · Score: 4, Informative

    There's not a snowball's chance in hell they'll extract it. It's over 1000 kilometers down. To put that in perspective I think the deepest well ever drilled (Oil well in the North Sea IIRC) was 20kms deep - 2% of the distance. The depth for most oil and gas wells is between 3 and 5 kms and just getting that far takes some serious engineering and costs a fortune.

    Unsurprisingly, there's not a lot of research into drilling wells deeper than that "oil and gas window". It's a pity though, the amount of heat energy in that water would be staggering.

    --

    One of these days I'm moving to Theory - everything works there

  13. Re:So THAT's where the flood water CAME FROM by Crazyscottie · · Score: 4, Informative

    Erm... Call me crazy, but I think the story says that the floods DID destroy all life - except those animals on the ark, of course. Whether or not the story of Noah and the Ark on the whole agrees with science may be arguable, but your comment suggests that you've only researched one side.

    --
    Just because it can't be explained doesn't mean it isn't true. Science fits into reality... not the other way around.
  14. Re:So THAT's where the flood water CAME FROM by b0r1s · · Score: 5, Informative

    The volume in the article doesnt match your math, but you're basically correct. Most natural sea water has a specific gravity of about 1.024-1.025. You can drop it as low as 1.009 without any real damage to fish, but invertebrates die pretty quickly if you do that (great way to treat saltwater fish for parasites, the lower SG of freshwater causes osmotic shock and they die).

    --
    Mooniacs for iOS and Android
  15. Re:Combine that with the recent minerals by Shihar · · Score: 4, Interesting

    Well, the US is pretty damn big and has a large population. In terms of raw power, the US is pretty damn hard to top. That said, there are some Eastern European nations like Estonia who are really toying around with some truly alternative forms of government. While I doubt Estonia is ever going to drop the US to its knees, it could very well wield the power of a nation like Japan... which is not bad for a little Eastern European country that is smaller then most US states.

    The big countries that have the mass to match the US pound for pound really just don't have their shit together. Western European nations are in the process of shedding off more population then they can afford to dump due to low population growth and low immigration. Europe is going into a death phase and their social system is not changing to keep up with the shifting demographics. The leaders of EU see the problem and are trying to get their shit together, but the people of Europe really want nothing to do with it. Sadly, due to the EU's current structure it only takes one nation to throw the wrench into the gears of reform. I am deeply skeptical that the EU is going to pull itself together and deal with the challenges facing it.

    China, India, and Russia while certainly having the man power to be rivals to the US, but really are too shackled with government control, bureaucracy, and corruption to ever hope to match the US in the next few decades. They are just too big and massive to change direction. Nothing short of a political revolution can fix these nations.

    The Middle East is FAR too socially dysfunctional to even dream of matching the US. They will be lucky to make it through the next decade or two without suffering the collapse of multiple governments and a genocide or three.

    Africa, while mostly screwed up, does have some bright spots of hope. They are very much behind the rest of the world, but so was Korea, Taiwan, and Japan for much of history. That said, they really have the deck stacked against them, and most of Africa is such a mess that they stand little chance of getting a toe hold in the world economy.

    The only nation that can take down the US is the US. The US could very well find itself in a death cycle with unadaptive social programs like Western Europe under the right conditions. Some might argue that the US is inching its way in that direction, but at the pace it is going, it is going to be a long time before the US gets there.

  16. Re:So THAT's where the flood water CAME FROM by Phroggy · · Score: 5, Funny

    "Give beer to those who are perishing, wine to those who are in anguish; let them drink and forget their poverty and remember their misery no more."
    Proverbs 31:6-7 (NIV)

    I defy anyone to find a better passage to take out of context.

    --
    $x='S24;r)>63/* h@<5+oZ)32"5cz';$me='phroggy'x$];
    $x=~y+ -xz+\0-Tx+;print$_^chop$me for split'',$x;
  17. Re:Combine that with the recent minerals by WindBourne · · Score: 4, Interesting

    Actually, the mineral wealth is what allowed America to remain at the top as long as we have. Basically, we had low costs minerals. Transportation on copper, oil, and iron are expensive. But if you can transport just a short ways, then you lower your manufactuering costs a great deal. Some have pointed out Japan as being the powerhouse without mineral wealth, but they have pushed to have high quality goods. SK Took over the low end stuff and now is pushing into higher end products. That means that China has the low end (read crappy) products with very low quality. It is improving, but it will be decades before that happens. In the mean time, they now have assess to low costs mineral AND are trying to ship as much of other minerals to china as possible. Basically, they are trying to increase the costs for other manufactuers, namely USA, Japan, and EU. Smart on their part

    But yeah, I agree that China has some MAJOR issues that will be coming at them. But the difference in sex is less of a problem for china. As you pointed out, that lots of single men tend to be agressive (think of the west or even of alaska). That can be hard on a society. But historically, nations have harnessed that into armies and invaded other nations. In particular, they do so to take a resource, such as an island, water, iron or copper. Of course, some just go after oil.

    --
    I prefer the "u" in honour as it seems to be missing these days.
  18. Re:So THAT's where the flood water CAME FROM by codeButcher · · Score: 5, Interesting

    What's interesting is that that passage uses the Hebrew word "eretz", which gets translated as "earth" in all (English) translations I've seen. Now, "earth" in itself is a very generic term, and does not NECESSARILY mean "the planet Earth". And "eretz" could also be translated as "land", "country", "ground" etc.

    So the choice is up to the translator, and if you have 2 millennia's worth of tradition (which was based on incomplete knowledge), it is quite hard to break free of the mould.

    It is certainly possible that the Noah flood was a localized event, without invalidating the Scriptures (as seen in the original language).

    --
    Free, as in your money being freed from the confines of your account.
  19. Why is there still water on the surface? by bremstrong · · Score: 4, Interesting

    Over the life of the Earth, it seems the water would slowly disappear into the crust as the ocean plates are subducted.

    If it is in a steady state, where is the water coming back out?