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|Biological and Environmental Sciences Journal Articles
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|Nickel on Mars: Constraints on meteoritic material at the surface
|Yen, Albert S
Mittlefehldt, David W
McLennan, Scott M
Bell III, James F
McSween, Harry Y
Ming, Douglas Wayne
McCoy, Timothy J
Morris, Richard Van
Economou, Thanasis E Tom
Madsen, Morten Bo
Wdowiak, Thomas J
Clark, Benton C
Jolliff, Bradley L
Squyres, Steven W
Alpha Particle X-ray Spectrometer
|Yen AS, Mittlefehldt DW, McLennan SM, Gellert R, Bell III JF, McSween HY, Ming DW, McCoy TJ, Morris RV, Golombek M, Economou TET, Madsen MB, Wdowiak TJ, Clark BC, Jolliff BL, Schröder C, Brueckner J, Zipfel J & Squyres SW (2006) Nickel on Mars: Constraints on meteoritic material at the surface. Journal of Geophysical Research: Planets, 111 (E12), Art. No.: E12S11. https://doi.org/10.1029/2006JE002797
|Impact craters and the discovery of meteorites on Mars indicate clearly that there is meteoritic material at the Martian surface. The Alpha Particle X-ray Spectrometers (APXS) on board the Mars Exploration Rovers measure the elemental chemistry of Martian samples, enabling an assessment of the magnitude of the meteoritic contribution. Nickel, an element that is greatly enhanced in meteoritic material relative to samples of the Martian crust, is directly detected by the APXS and is observed to be geochemically mobile at the Martian surface. Correlations between nickel and other measured elements are used to constrain the quantity of meteoritic material present in Martian soil and sedimentary rock samples. Results indicate that analyzed soils samples and certain sedimentary rocks contain an average of 1% to 3% contamination from meteoritic debris.
|Copyright 2006 by the American Geophysical Union. AGU allows authors to deposit their journal articles if the version is the final published citable version of record, the AGU copyright statement is clearly visible on the posting, and the posting is made 6 months after official publication by the AGU.
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