[meteorite-list] Are Mars Meteorites Magnetic?

From: Bernd V. Pauli <bernd.pauli_at_meteoritecentral.com>
Date: Wed, 4 Jan 2012 09:00:38 +0000
Message-ID: <DIIE.0000007B000032D5_at_10.0.100.101>

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
Received on Wed 04 Jan 2012 04:00:38 AM PST