[meteorite-list] Peppered Mammoth tusks

From: Jerry <grf2_at_meteoritecentral.com>
Date: Sat, 15 Dec 2007 18:54:42 -0500
Message-ID: <6CB1F78F460B4A0C8F57CB7BFB85D9A9_at_Notebook>

there is a third spike around
44,000 BCE. I wonder if this last might be related to
the Barringer impact.

Well, the timeframe looks good?!
Jerry Flaherty
----- Original Message -----
From: "E.P. Grondine" <epgrondine at yahoo.com>
To: <meteorite-list at meteoritecentral.com>
Sent: Saturday, December 15, 2007 12:50 PM
Subject: Re: [meteorite-list] Peppered Mammoth tusks


> Hi all -
>
> First off, West was looking for bones from the comet
> impact of 10,900 BCE, and found the peppered tusks.
> When radiocarbon dated these tusks turned out to be
> from 31,000 BCE, and not from the 10,900 BCE comet
> impact.
>
> Second, there is no terrestrial process that accounts
> for the isotopes found in the iron pellets.
>
> Third, this was not the airburst of an iron. Were
> molten iron droplets reported at Sikote Ailin?
>
> Fourth, this was not the entry of small irons. A field
> of droplets from the entry of small irons has never
> been reported to my knowledge, so I'm pretty sure the
> physics of it precludes it. These droplets appear to
> be larger than the micro-meteorites collected from
> gutters and pans, and they were red hot when they hit
> the bones.
>
> Fifth, as far as crushing bones goes, we don't know
> the penetrative force required for molten iron
> droplets. No comparative work has been done on modern
> cattle bones, and this will require the use of a
> magnetic accelerator, not a shotgun.
>
> Sixth, only limited work has been done on the droplet
> field around Barringer Crater, so we don't know the
> distribution of droplets and blast force that occurred
> there. In the mammoth tusk case, I think that the
> pellets followed a ballistic trajectory, not a linear
> one.
>
> No mention was made of where these mammoth tusks came
> from. I think there's a fossil field of irons out
> there waiting to be recovered. A big one.
>
> Seventh, note again the large spikes in the radio
> calibration curve. Spikes at 10,900 BCE (comet),
> 31,000 BCE (iron); there is a third spike around
> 44,000 BCE. I wonder if this last might be related to
> the Barringer impact.
>
> Could large impacts release neutrons regardless of the
> type of impactor? Or is there some extra-solar
> process, say the impact of an iron with a neutron
> star, which might send material and neutrons our way,
> including material from the Oort Cloud? What accounts
> for this increased C14? Impacts from the same debris
> stream with our Sun? Nothing reported there that I
> know of.
>
> You know, its strange to me. Most here are focused on
> this "smaller" iron impact and the peppered tusks,
> instead of on the comet impact which killed about 90%
> of the people living in North America at the time.
> Most died due to hunger. But then, there's not likely
> to be any strewn field from that, and nothing to trade
> except impactites.
>
> Good hunting,
> E.P. Grondine
> Man and Impact in the Americas
> and "Amazing Stories"
>
> PS - Where I was raised, "Oh Christ" is not considered
> blasphemy - it is usually used in exasperation. Thus I
> had a tough time understanding those who so vocally
> complained about my post "Oh Christ ... what the hell
> is this". My apologies to those I offended.
>
> Exasperation is expressed by "Aiyee!" in Shawnee.
>
>
>
>
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Received on Sat 15 Dec 2007 06:54:42 PM PST