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. 2004 Aug 6;305(5685):827-9.
doi: 10.1126/science.1100112.

Magnetic properties experiments on the Mars exploration Rover Spirit at Gusev Crater

P Bertelsen  1 , W Goetz, M B Madsen, K M Kinch, S F Hviid, J M Knudsen, H P Gunnlaugsson, J Merrison, P Nørnberg, S W Squyres, J F Bell 3rd, K E Herkenhoff, S Gorevan, A S Yen, T Myrick, G Klingelhöfer, R Rieder, R Gellert
Affiliations

Magnetic properties experiments on the Mars exploration Rover Spirit at Gusev Crater

P Bertelsen et al. Science. .

Abstract

The magnetic properties experiments are designed to help identify the magnetic minerals in the dust and rocks on Mars-and to determine whether liquid water was involved in the formation and alteration of these magnetic minerals. Almost all of the dust particles suspended in the martian atmosphere must contain ferrimagnetic minerals (such as maghemite or magnetite) in an amount of approximately 2% by weight. The most magnetic fraction of the dust appears darker than the average dust. Magnetite was detected in the first two rocks ground by Spirit.

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