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Location: UFOUpDatesList.Com > 2007 > Sep > Sep 20

Re: 'Meteorite' In Peru

From: Michael Tarbell <mtarbell.nul>
Date: Thu, 20 Sep 2007 12:08:50 -0600
Archived: Thu, 20 Sep 2007 18:25:48 -0400
Subject: Re: 'Meteorite' In Peru


>From: Nick Balaskas <Nikolaos.nul>
>To: UFO UpDates - Toronto <ufoupdates.nul>
>Date: Wed, 19 Sep 2007 17:13:53 -0400 (Eastern Daylight Time)
>Subject: Re: 'Meteorite' In Peru


<snip>

>>2. Meteorites don't give off noxious gasses.

><snip>

>It is possible the vapors could be the result of the meteorite
>striking a pocket of natural gas. The symptoms reported by
>locals, headache, nausea, dizziness, are all similar to both
>natural gas and even carbon monoxide poisoning. If the collision
>was powerful enough, the rock would instantly turn into 'rock
>vapor', skipping the liquid-lava phase. However, since the sick
>witnesses and police are not dead, It's a good sign the culprit
>isn't such vapor. Rock vapor will instantly ignite/burn anything
>it comes into contact with.


If one allows the possibility that this object was actually a
small comet with a small velocity relative to earth, it would be
quite capable of giving off noxious gases.

The symptoms reported were all broadly consistent with exposure
to any one, or a combination of, hydrogen cyanide, hydrogen
sulfide, and ammonia, all of which have a pungent odor, and all
of which are present in comets. Indeed, a 5 meter diameter
sphere of typical cometary material would contain roughly 35,
200, and 100 kg, respectively, of these compounds.

Considering only the 35 kg of hydrogen cyanide, if uniformly
diluted with air to a concentration of 50 ppm (5 times the OSHA
permissible exposure limit), it would form a hemispherical
volume some 500 ft in diameter. The corresponding 'symptom-
inducing' diameters for the other two compounds are similar. It
is reasonable to presume that this diameter is substantially
larger when all three compounds are present simultaneously.

A very specialized set of circumstances would be required for
such a scenario, and perhaps another lister can show that it is
ruled out in principle. The object was clearly moving fast
enough to be incandescent prior to impact, but the deccelaration
of a low-density comet would be quite dramatic, and conceivably
the timing could be such that a 5-meter diameter remnant
ultimately impacted at low enough velocity to produce the
modestly-sized crater that is observed.

It has apparently already been determined that the fragments at
the impact site are chondrites ('stony' meteorites), but I don't
know if it has been determined whether they might be
carbonaceous chondrites (i.e., containing high levels of water
and organic compounds). The latter would be evidence in favor of
a cometary origin.


Mike







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