Timeline for the asteroid that wiped out life 66 million years ago.

Discussion in 'Science and Technology' started by MarathonMike, Sep 11, 2019.

  1. Fort Fun Indiana
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    Fort Fun Indiana Platinum Member

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    I think the "50 mile" figure came from the estimates of its size, which put it from 7 to 50 miles wide.
     
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  2. progressive hunter
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    progressive hunter Gold Member

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    7-50,,,WOW!!!

    sounds like they had no idea and just made up a number
     
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  3. Fort Fun Indiana
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    Fort Fun Indiana Platinum Member

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    Well moron, it can't be bigger than the crater. And its size is limited on the lower end by the size of the crater and the velocities of solar system objects.
     
  4. progressive hunter
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    progressive hunter Gold Member

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    so they guessed,,,
     
  5. MarathonMike
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    MarathonMike Platinum Member

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    Right, all we have is the best estimates of the scientists who have studied the impact site. Granted the number I posted was at the high end, but whether it was 6 or 50 miles wide there is full agreement that it was a big ass rock that caused massive world wide damage.
     
  6. toobfreak
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    toobfreak Gold Member

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    You have fingers and web access ---- ---- type.

    Dinosaurs were dying out long before huge meteor strike

    Were dinosaurs already on the way out when the asteroid hit? | Cosmos
     
  7. toobfreak
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    toobfreak Gold Member

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    WHOSE estimate? No estimate has ever been estimated that large! Of all the known major impactors:
    • Chicxulub is best estimated at 9 miles diameter, 66 million years ago.
    • Sudbury Impactor estimated to be about 8 miles diameter around 1.8 billion years ago.
    • Vredefort Impactor estimated to be about 9 miles diameter around 2.05 billion years ago.
    • Suavjarvi Impactor about 2.4 billion years ago. No good estimate of size.
    • Unamed impactor hitting South Africa creating Barberton Greenstone Belt about 3.2 billion years ago estimated to be 30 miles wide.
    • Before that was the LHB at 4 billion year. No geologic record remains to make any individual estimates.
    I know of no credible estimate placing Chicxulub anywhere near 50 miles. 10 maybe. Not 50.
     
  8. toobfreak
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    toobfreak Gold Member

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    Show me an estimate of 50 miles?! A rock that size would have punched through the crust into the mantle of the Earth and the outcome would have been far different than what the geologic record shows! I get sick and tired of the USMB "science" forum being the sounding board for a bunch of outrageous nutball unsubstantiated claims from whackjob internet articles claiming everything from the USA took out the WTC itself to there being books written 10 million years ago to UFOs coming from a hollow metal moon. :eek: Half the people here have a screw loose.
     
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  9. progressive hunter
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    progressive hunter Gold Member

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    big difference between guessing and knowing,,,

    and they have to ignore a lot of other evidence to come up with those opinions,,
    the biggest being the huge dino graveyards of mutilated bodies that stretch for hundreds of miles
     
  10. harmonica
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    harmonica Gold Member

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    we need to SMITE thy LORD for hurting the dinos
     
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