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Thread: Almost 13,000 Years Ago, a Comet Impact Set Everything on Fire

  1. #1
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    Almost 13,000 Years Ago, a Comet Impact Set Everything on Fire

    A new discovery in South America has added further weight to the Young Dryas Impact theory, which states that a sudden shift in its climate 12,800 years ago was due to a comet hitting Earth.
    The post Almost 13,000 Years Ago, a Comet Impact Set Everything on Fire appeared first on Universe Today.


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  2. #2
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    This makes the multiple impact theory even more significant as the cause of YDA wih its 100m or so sea level rise and mass extinctions. I always wonder how much of a population pinch point that was for humans.
    sicut vis videre esto
    When we realize that patterns don't exist in the universe, they are a template that we hold to the universe to make sense of it, it all makes a lot more sense.
    Originally Posted by Ken G

  3. #3
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    Evidence continues to pile up.
    Did an extraterrestrial impact trigger the extinction of ice-age animals?

    Findings of platinum spikes -- an element associated with cosmic objects like asteroids or comets -- in North America, Europe, western Asia and recently in Chile and South Africa.

  4. #4
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    And now some evidence for a different hypothesis:
    Cooling of Earth caused by eruptions, not meteors
    Waters said that Hall's Cave, located in the Texas hill country, has a sediment record extending over 20,000 years and he first began researching the cave in 2017.
    ...
    "This work shows that the geochemical signature associated with the cooling event is not unique but occurred four times between 9,000 and 15,000 years ago," said Alan Brandon, professor of geosciences at University of Houston and head of the research team.
    Turns out the relevant sediments are composed more like volcanic glasses than comet stuff.

  5. #5
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    Sound, contradictory evidence indicating cometary impacts, or volcanism were responsible for the Younger Dryas climatic event now exists. These might be reconciled, if certain comet impacts were large enough to break open volcanic systems, causing them to erupt.

  6. #6
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    Could be, Ross 54.

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