[meteorite-list] meteorites from Phobos?

From: Tom aka James Knudson <knudson911_at_meteoritecentral.com>
Date: Thu Apr 22 10:29:57 2004
Message-ID: <004801c37d7c$c6d3eca0$47c143d8_at_malcolm>

Hello List, Ron wrote;
"By the way, that image of the boulder on Phobos is a cool image, particurly
with the long shadows."
http://www.msss.com/mars_images/moc/2003/09/16/index.html

How would you guess that got there? Is that a true martian meteorite, a
meteorite on the martian surface?

Thanks, Tom
Peregrineflier <><
The proudest member of the IMCA 6168
----- Original Message -----
From: Ron Baalke <baalke_at_zagami.jpl.nasa.gov>
To: Meteorite Mailing List <meteorite-list_at_meteoritecentral.com>
Sent: Wednesday, September 17, 2003 5:10 PM
Subject: Re: [meteorite-list] meteorites from Phobos?


> > My question is: Would it be possible to find on Earth, meteorites with =
> > an origin from Phobos (or the other moon Deimos)?
> > Or would the fragments be mainly gravitationally atracted by Mars?
> > I suppose that other factors should be considered, such as the angle and
=
> > the velocity of the impactors on the moons?
> >
>
> It is possible, but the real trick would be to correlate it specifically
to
> Phobos. Spectroscopic analysis of Phobos indicates that its composition
is similar
> to carbonaceous chondrites. But spectra matches have also been found
between
> carbonaceous chondrites and several other asteroids. And Phobos is
strongly
> suspected of being a captured asteroid. So, unless you can find
something
> about Phobos that makes it uniquely different from the other asteroids, it
will
> be nearly impossible to determine if a meteorite came from Phobos or a
> similar asteroid.
>
> By the way, that image of the boulder on Phobos is a cool image,
particurly
> with the long shadows.
>
> Ron Baalke
>
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Received on Wed 17 Sep 2003 08:35:33 PM PDT