1995•Institutional Repository National Institute of Polar Research (National Institute of Polar Research (Japan))Requires access
Isotopic composition of nitrogen in the PCA 91002 R group chondrite
Naoji Sugiura, Shigeo ZASHU
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Abstract
Nitrogen isotopic composition of an R-group chondrite PCA 91002 was measured. A delta ^<15>N value as low as -60 permil was found in some combustion steps. Since this is a gas-rich meteorite, interpretation of the result is not straightforward, but with the aid of results on an H_2O_2-treated sample, we conclude that isotopically light nitrogen is indigenous to the meteorite.