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  1. #1

    what does this mean?

    In the sci-fi"Pride and Prometheus",there is a sentence:Beneath the glass was a collection of bones that had been unearthed in the local lead mines. The card lettered beside them read: Bones, resembling those of a fish, made of limestone.
    here,the word "limestone"means it is the original bones of the fish,or moden people copy the fish's bones with some stone?

  2. #2
    Live Long & Suffer psikeyhackr's Avatar
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    Permineralization is one of the ways in which a plant or animal can be turned into a fossil. During the process of permineralization, mineral rich water seeps into the void spaces of an organism, leaving deposits of minerals behind which slowly build up, creating a cast of the organism.

    http://www.wisegeek.com/what-is-permineralization.htm

    I am one of those antiquated fossils that thinks there should be science in SCIENCE fiction.

    psik

  3. #3
    thanks,but i still donot understand what it means in the story.

  4. #4
    Seven Mary Four Glelas's Avatar
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    Quote Originally Posted by littlelion33 View Post
    thanks,but i still donot understand
    He gets that alot.
    Last edited by Glelas; August 8th, 2009 at 06:54 PM.

  5. #5
    Live Long & Suffer psikeyhackr's Avatar
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    Quote Originally Posted by Glelas View Post
    He gets that alot.
    And whose fault is that? I merely provided a link that explained the phenomenon he asked about. I am not going to get that book and read some of it to figure out what it has to do with the story.

    psik

  6. #6
    infomaniac Expendable's Avatar
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    It just means that nature and time replaced the bones with limestone.

  7. #7
    Quote Originally Posted by Expendable View Post
    It just means that nature and time replaced the bones with limestone.
    oh,thanks a lot.

  8. #8
    Registered User JunkMonkey's Avatar
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    Quote Originally Posted by psikeyhackr View Post
    I am one of those antiquated fossils that thinks there should be science in SCIENCE fiction.

    psik
    Me too. I know next to nothing about geology but my bullshit science detector just went Whoop! Whoop! Would fossils bones of even the earliest bony fish (Devonian? 359 million years ago) be found in lead ore bearing rocks which are billions of years old?

  9. #9
    Live Long & Suffer psikeyhackr's Avatar
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    Quote Originally Posted by JunkMonkey View Post
    Me too. I know next to nothing about geology but my bullshit science detector just went Whoop! Whoop! Would fossils bones of even the earliest bony fish (Devonian? 359 million years ago) be found in lead ore bearing rocks which are billions of years old?
    Oh yeah, lead is degenerate uranium ain't it. I guess there shouldn't be any fossils there.

    http://en.wikipedia.org/wiki/Uranium-lead_dating

    I didn't notice that.

    psik

  10. #10
    A chuffing heffalump Chuffalump's Avatar
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    Quote Originally Posted by psikeyhackr View Post
    Oh yeah, lead is degenerate uranium ain't it. I guess there shouldn't be any fossils there.

    http://en.wikipedia.org/wiki/Uranium-lead_dating

    I didn't notice that.

    psik
    Actually, look up Cromford Moor Mine/Black Rock in Derbyshire (haven't worked out how to include links yet). Lots of lead mining in limestone deposits with fossils dated to 340 million years ago. Apparently the lead is deposited via mineralisation (only the vaguest idea how this works).

  11. #11
    Registered User JunkMonkey's Avatar
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    Quote Originally Posted by Chuffalump View Post
    Actually, look up Cromford Moor Mine/Black Rock in Derbyshire (haven't worked out how to include links yet). Lots of lead mining in limestone deposits with fossils dated to 340 million years ago. Apparently the lead is deposited via mineralisation (only the vaguest idea how this works).
    http://www.ukrigs.org.uk/html/esos.p...S4&menu=brmain

    You learn something every day.

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