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Inclusions in meteorite older than Solar System (≈7.5 billion years old)

Discussion in 'Physical & Life Sciences' started by sjastro, Jan 16, 2020.

  1. sjastro

    sjastro Newbie

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  2. SelfSim

    SelfSim A non "-ist"

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    The mighty Murchison strikes again!!

    What a super rare dump from the heavens .. bestowethed upon ze land down under, eh?
     
  3. LiquidCat

    LiquidCat New Member

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    How can there be stardust from 7,5b year ago on earth if the earth is only 6000 years old or so
     
  4. Occams Barber

    Occams Barber Newbie Supporter

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    We get all the good stuff :rolleyes:
    OB
     
  5. sjastro

    sjastro Newbie

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    I'm approximately 120 km from the site.

    The news is a reminder of my own frustrations in identifying a sample which could be a carbonaceous chondrite.
    Washington Uni become interested and nominated a lab in Western Australia that would perform a blind test free of charge.
    The results would have then been sent to Washington Uni for analysis.
    Unfortunately the lab was shutdown due to the downturn in the mining industry at the time.
    Attempts to get the sample blind tested without analysis has been cost prohibitive and even attempts to have it tested at a reasonable cost at my old Uni was not possible.
    It shows that Universities are prepared to put profits before alumni loyalties.:)

    Incidentally the sample fragment I have contains a mysterious inclusion.
    [​IMG]
     
    Last edited: Jan 16, 2020
  6. Speedwell

    Speedwell Well-Known Member

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    Exactly. One of those numbers has to be wrong.
     
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  7. Bungle_Bear

    Bungle_Bear Whoot!

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    The same way there can be 7.5bn year old stardust on a 4.5bn year old earth. Age of the earth makes no difference.
     
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  8. JackRT

    JackRT OOPS!!! Supporter

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    I think I know which one.
     
  9. SelfSim

    SelfSim A non "-ist"

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    I wonder whether the busfires might uncover more nuggets like this one?
     
  10. SelfSim

    SelfSim A non "-ist"

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    I'm not sure the two notions can be credibly regarded with equivalence however ..
     
  11. SkyWriting

    SkyWriting The Librarian Supporter

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  12. Lost4words

    Lost4words In reality, an old dog! Supporter

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    Its only 6000 years old in peoples minds. Its called badly interpreting scripture.
     
  13. Bungle_Bear

    Bungle_Bear Whoot!

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    Why not? Unless you qualify why you consider the earth to be only 6000 years old (which was not done), there is no fundamental difference.
     
  14. SelfSim

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    Yeah .. the credibility of unsupported notions here is up against the solid, contextualised objective evidence (isotopic composition) presented in the OP link.
    The equivalence concept should always be scruntinised skeptically.
     
  15. SelfSim

    SelfSim A non "-ist"

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    Might the absence of blackness of the inclusion be due to it being protected from the heat? (Its centrality in the sample might suggest this?)
     
  16. sjastro

    sjastro Newbie

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  17. sjastro

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    I don't know.
    What seemed to have piqued Washington Uni interest for investigation was not only the sample being fluorescent under UV but the image as well.

    On the subject of testing a geologist on a forum came up with an interesting idea to get it tested at a pawn shop.
    Many pawn shops now apparently use hand held X-ray fluorescent spectrometers to test the authenticity of items.
     
  18. SelfSim

    SelfSim A non "-ist"

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    Well like .. I suppose a pawn shop test would qualify as an *in the lab* test? :p
     
  19. sjastro

    sjastro Newbie

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  20. sjastro

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    I have a bit of experience with using X-ray fluorescent spectrometers where I used to work. Unfortunately they went out of business as well.
    After the lab Washington Uni recommended went out of business I suggested to them if X-ray spectroscopy was feasible instead of the destructive mass spectrometry which they use for identification.
    They had no problems with the idea.
    Whether these hand held spectrometers are up to standard I don't know.

    As a "human interest story" I had a baby tooth of mine analysed using X-ray fluorescent spectroscopy and apart from detecting the usual suspects such a calcium it also found radioactive thorium.
    Apparently we can thank our British friends for exploding their hydrogen bombs in our backyard in the 1950s.:(
     
    Last edited: Jan 17, 2020
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