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Earth, Planets and Space
Fig. 4 | Earth, Planets and Space

Fig. 4

From: Amino acid compositions in heated carbonaceous chondrites and their compound-specific nitrogen isotopic ratios

Fig. 4

Comparison of the δ15N values (‰) of amino acids. Comparison of the δ15N values (‰) of amino acids obtained from this study and previous measurements on CM chondrites: ALH 83100, Murchison, LEW 90500 and LON 94101(Elsila et al. 2012; Engel and Macko 1997), CR chondrites: GRA 95229, LAP 02342, EET 92042, and QUE 99177 (Elsila et al. 2012; Pizzarello and Holmes 2009), and terrestrial materials (Burton et al. 2012b and references therein)

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