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If this meteorite doesn't conform to any of the known martian types, how can one say it's from Mars? This should be explained. --Piledhigheranddeeper (talk) 19:15, 11 January 2013 (UTC)
The information you are looking for is in the classification section. The iron/manganese ratio conforms with that of the other martian meteorites. The oxygen isotope data does not overlap with that of the SNC-meteorites. The NWA7034 data seems to lie along a line drawn through the SNC-meteorite data. You can look at the data on the second page of this pdf: http://www.lpi.usra.edu/meetings/lpsc2012/pdf/2690.pdf. If you think that the section is somewhat unclear I can try to add a little more explanation to it. Cheers --Tobias1984 (talk) 19:30, 11 January 2013 (UTC)
The last paragraph in the Science article covers this quite nicely. The thing to bear in mind is that, unlike SNC meteorites, this is the first martian meteorite that actually looks like typical martian crust
"Its major, minor, trace, and isotopic chemistry is inconsistent with originating from Earth, Moon, Venus, or Mercury, and it is most similar to rocks from Mars...the bulk chemistry of NWA 7034 is strikingly similar to recently collected orbital and lander data collected at the martian surface, allowing for a direct link between a martian meteorite and orbital and lander spacecraft data from Mars."