[meteorite-list] Those were the days - Part 2

From: mafer_at_domafer.com <mafer_at_meteoritecentral.com>
Date: Thu Apr 22 10:07:05 2004
Message-ID: <003b01c28075$4b848460$6401a8c0_at_vs.shawcable.net>

I've read that the isotopes of certain gases have been the most useful in
catagorizing the meteorites. And, based on data supplied from moon and mars
missions and spectral analysis, then the compnent minerals have further
grouped them as to likely parent bodies. The one thing that puzzels
researchers the most is those meteorites that have assembleges of minerals
not dissimular to core-mantle boundries (as theroized) like the pals with no
apparent simular representative material from a mantle-crust region. But I
have to wonder, with all the evidence for volcanic activity on Mars and the
size of mons olympus (take into account the size of Mars to Earth and then
the size of mons olympus to the largest volcanos or even mountains here on
Earth) that mons olympus must have had one healthy eruption and it was
ejecting material at such a tremendous rate and duration (the only
comparable eruptions I can think of for amount of material ejected would be
the flood basalts of the northwest or in India but the violence of the
eruption is unparalleled here) that some may have achieved excape velocity
and could be the source of pals.
But, thats just an idea as I haven't sat down and cracked the books to see
if it would be possible (if theres any data that would lend itself to
knowing the possible rate of ejection)
Mark
----- Original Message -----
From: Bernd Pauli HD <bernd.pauli_at_lehrer.uni-karlsruhe.de>
To: meteorite list <meteorite-list_at_meteoritecentral.com>
Sent: Wednesday, October 30, 2002 3:59 PM
Subject: [meteorite-list] Those were the days - Part 2


> Kosmos* Manual for Those Who Love Nature,
> Vol. 12, 1926, pp. 401-404, excerpt:
>
> We still have not the slightest clue about the provenance
> of meteorites. Qualitatively (that is, with regard to the
> substances they contain), they are similar to terrestrial
> substances, quantitatively (i.e. in regard to the respective
> amount present in meteorites), however, they are different
> from terrestrial substances. Comparing meteoric stones to
> terrestrial rocks, one would be inclined to group them with
> volcanic masses. That's why they were thought to be lunar,
> volcanic ejecta in former times, recent theories favor debris
> from a burst planet.
>
> * A German magazine of popular science, which still
> publishes scientific articles, astronomical almanacs, etc.
>
> Good night, it's
> bedtime here,
>
> Bernd
>
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Received on Wed 30 Oct 2002 07:34:37 PM PST