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HAPPY BIRTHDAY ZAGAMI



Ron Baalke schrieb:

> For that matter, it is also Chassigny's birthday (October 3, 1815).
> And in case you're wondering about two different Mars meteorites
> falling on October 3rd, there been some studies done on this, and
> the conclusion was that it is coincidental. - Ron Baalke


Hello Ron and List,

Here it is: Meteoritics 27-1, 1992, pp. 93-95.

Fall days of the SNC meteorites: Evidence for an SNC meteoroid stream,
and a common site of origin (Allan H. Treiman)


Abstract:

Four of the SNC meteorites of putative Martian origin are falls.
Two of these fell on October 3: Chassigny in 1815 and Zagami in
1962. The probability of this coincidence arising from random fall
days is approximately 1 in 60. If this coincidence is not the result
of chance, it suggests that some of the SNC meteorites are derived
from a meteoroid stream. In that Chassigny and Zagami span nearly
the full range of SNC lithologies and histories, the coincidence of
fall days is consistent with suggestions that all of the SNCs came
from a single site (impact crater) on their parent planet.

Conclusions (excerpt):

Thus, the coincidence of fall days for Zagami and Chassigny does not
solve the mystery of how the SNC meteorites got from Mars to Earth.
At best, it may be a hint of the orbital dynamics required for transfer
of meteorites from Mars to the Earth; at worst, it may be an intriguing
coincidence serving only to muddy the already turbid waters.

Best regards,

Bernd

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