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Life Found In Deepest Layer of Earth's Crust

michaelmarshall writes "For the first time, life has been found in the gabbroic layer of the crust. The new biosphere is all bacteria, as you might expect, but they are different from the bacteria in the layers above; they mostly feed on hydrocarbons that are produced by abiotic reactions deep in the crust. It could mean that similar microbes are living even deeper, perhaps even in the mantle."

8 of 335 comments (clear)

  1. Re:Living under surface by SteeldrivingJon · · Score: 3, Insightful

    Central Greenland or the depths of the Gobi desert would be even easier, and there's plenty of room.

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  2. Re:Ergo oil by Burnhard · · Score: 3, Insightful

    Yes, the rate is the issue. I expect some fields would re-fill with oil, given the number of fissures and cracks that are probably around the field itself. The oil would drain into the well from these places, wouldn't it?

  3. Re:Living under surface by hedwards · · Score: 5, Insightful

    While we're not running out of room, at least in most parts of the world, we are running the risk of running out of food and clean water. Space doesn't do you a damned bit of good if you haven't got food and water.

  4. Re:Living under surface by toleraen · · Score: 3, Insightful

    So just design the structure so that it floats. Maybe call it a boat, or a ship or something. Probably something that cruises around the ocean. I mean it worked for houses with wheels...you never hear of a trailer park getting hit by a tornado.

  5. Re:Ergo oil by mcrbids · · Score: 4, Insightful

    The sheer amount of chutzpah passing in place of intelligence in this post is just... astounding. It's like stupid has become legitimized!

    Ergo the oil argument that much of our oil supply is made from bacteria and not old dinosaurs.

    Which has what to do with sustainability, again? You imply sustainability by mentioning it in the next sentence.

    If the bacteria is supplied from the crust inside the earth, the oil fields can replenish and oil becomes much more sustainable than before.

    I mean... wow! It's just like farming!

    We know almost *nothing* about this process, except that the metabolic rate of these bacteria are mind numbingly slow. We're talking at rates where a single reproduction is a thousand years in length. Just how long are you willing to wait for your next tank of gas?

    Any way you look at this the findings become politically charged as the impact this has on our future energy supply could be enormous

    Unless, of course, you look at this with something other than stupid. Get that out of the way, and you see that this changes about as much the grass growth on your lawn over the next 3.5 minutes.

    With a little bit of googling you can readily find oil fields from old that have mysteriously started refilling with oil.

    This happens in all wells, either with Oil or Water. It's not like there's a bladder down under ground and we're going to empty it. Oil and water are present in the fissures and pores of the surrounding rocks and soil. When you pump out the water/oil, you create a low pressure point, and fluid seeps from the surrounding soil. It's only in the case of extreme ignorance that this effect seems remarkable.

    Your post is an extremely good example of why relying on the "wisdom of the crowds" can instead be relying on the "stupid foibles and commonly mistunderstood ideas" of the crowds.

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  6. Re:Ergo oil by pk001i · · Score: 4, Insightful

    The carbon would come from the atmosphere and go back.

    How exactly does atmospheric carbon penetrate the kilometers of sediment and rock needed to reach most oceanic gabbros?

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  7. Anti-oil (was Re:Ergo oil) by DragonWriter · · Score: 5, Insightful

    Ergo the oil argument that much of our oil supply is made from bacteria and not old dinosaurs. If the bacteria is supplied from the crust inside the earth, the oil fields can replenish and oil becomes much more sustainable than before.

    You seem to miss the part where TFA notes that bacteria found deep in the crust degrade the hydrocarbons, which are produced by abiotic processes. That's pretty much the opposite of having an oil supply made from bacteria.

  8. Re:Living under surface by Ellis+D.+Tripp · · Score: 5, Insightful

    Indian tribes own 3% of petroleum and gas reserves in the USA and 15% of coal.

    Sure. Until the day comes that Uncle Sam or one of his corporate owners wants them. Then their "ownership" will be respected about as well as all the other treaties have been over the last few hundred years....

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