[meteorite-list] Are Mars Meteorites Magnetic?
Bernd V. Pauli
bernd.pauli at paulinet.de
Wed Jan 4 04:00:38 EST 2012
Hello All,
Carl B. Agee wrote:
"Yes, but not from native iron-nickel, which is normally
absent in SNCs, instead from ferrimagnetic* minerals
such as pyrrhotite Fe7S8 and magnetite Fe3O4."
See also:
Morris R.V. et al. (1998) Lepidocrocite to maghemite to
hematite:Pathway to magnetic and hematitic Martian soil
(Meteoritics 33-4, 1998, pp.743-751).
Macri M. et al. (2004) Melt inclusions in augite from
nakhlites: A key for the comprehension of Martian magnetism.
(MAPS 39-8, 2004, A060).
Knudsen J.M. (1992) Magnetic phases in SNC meteorites
and on Mars (Meteoritics 27-3, 1992, A244): "The SNC
meteorites ... contain a ferrimagnetic* phase (titano-
magnetite)."
Weiss B.P. et al. (2001) Records of an ancient martian magnetic
field in ALH 84001 (abs. Lun. Planet. Sci. 32, #1244, Lunar and
Planetary Institute, Houston, Texas, USA, CD-ROM).
Regards,
Bernd
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