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Re: E Chondrites and Mercury
Walter & List,
A good article on what a Mercurian meteorite should be like can be found
in Meteoritics 30, 269-278, May 1995. It concludes that a Mercurian
meteorite would be 100x less likely to impact Earth than would a Martian
meteorite. Therefore, with a dozen Martian specimens, there would only
be .12 Mercurian specimens. It addresses each meteorite group
individually and points out why they aren't possible Mercurian samples.
No specimens are presently known in our collections but a misclassified
mercurian meteorite would most likely be found among aubrites or
anorthositic lunar meteorites.
In a related article concerning E chondrites, in GCA 61, 1997, the
authors have presented a pretty convincing case that both EH and EL
chondrites came from the same parent body, and were formed in the order
from core to surface of EH5, EH4, EH3, EL3, EL6, with internal
metamorphism affecting EH's and external (solar) metamorphism affecting
the EL's.
They are both great articles, check em out.
David
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