Meteorite Shergotty

Ott U. (1988) Noble gases in SNC meteorites Shergotty, Nakhla, Chassigny. Geochim. Cosmochim. Acta 52, 1937-1948. 

Gibson Jr E. K. et al. (2001). Fife on Mars evaluation of the evidence within Martian meteorites ALH84001, Nakhla and Shergotty, Precabrian Research 106 15-34. 

McSween, H. Y., Grove, T. L., Lentz, R. C. F. et al. (2001) Geochemical evidence for magmatic water within Mars from pyroxenes in the Shergotty meteorite. Nature, 409, 487-490. 

Terribilini D., Eugster O., Burger M., Jakob A., and Krahenbiihl U. (1998) Noble gases and chemical composition of Shergotty mineral fractions, Chassigny and Yamato 793605 the trapped argon-40/argon-36 ratio and ejection times of Martian meteorites. Meteorit. Planet. Set 33, 677 -684. 

Figure 2 An FcKq, map of a thin section of the Shergotty meteorite. Gray phases are zoned pyroxenes, black phases are plagioclase (transformed to maskely-nite by shock), and bright phases are Fe-Ti oxides.

Jagoutz E. and Wanke H. (1986) Sr and Nd isotopic systematics of Shergotty meteorite. Geochim. Cosmochim. Acta 50, 939-953. 

Mathew K. J., Kim J. S., and Marti K. (1998) Martian atmospheric and indigenous components of xenon and nitrogen in the Shergotty, Nakhla, and Chassigny group meteorites. Meteorit. Planet. Sci. 33, 655-664. 

Chen JH, Wasserburg GJ (1985) U-Th-Pb isotopic studies on meteorites ALHA 81005 and Ibitira. Lunar and Planetary Science Conference, vol. 26, pp 119-120 Chen JH, Wasserburg GJ (1986) Formation ages and evolution of Shergotty and its parent planet from U-Th-Pb systematics. Geochim Cosmochim Acta 50(6) 955-968 Qaridge GGC, Campbell IB (1977) The salts in Antarctic soils, their distribution and relationship to seal processes. Soil Science 123(6) 377-384... 

Wright IP, Carr RH, Pniinger CT (1986) Carbon abundance tmd isotopic studies of Shergotty and other shergottite meteorites. Geochim Cosmochim Acta 50(6) 983-991... 

The lanthanide abundance pattern for Shergotty (table 9, fig. 7) is unique among meteorites and indicates a complex prehistory in the Martian mantle from which they appear to have been derived, as basalts, by partial melting. The enriched pattern of the heavy lanthanides (Gd-Lu) resembles that of pyroxenes (the parent rocks appear to have been pyroxene cumulates). It provides no evidence that garnet was a residual phase in the source from which these basalts were derived, for, if so, the reciprocal pattern would be displayed. Leaching experiments show that most of the lanthanides are contained in accessory phases (whitlockite and apatite) rather than in the major mineral phases. 

The Shergotty-Nakhla-Chassigny (SNC) meteorites are believed to be of Martian origin. They contain 0.04-0.4% water by weight. The question is whether this water is of terrestrial or extraterrestrial origin (Karlsson et al., 1991 [179]). Oxygen isotope measurements can be used to answer this question. A detailed analysis of water in SNC meteorites showed ... 

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