Noble Gases in Stratospheric Dust Particles: Confirmation of Extraterrestrial Origin

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Science  23 Jan 1981:
Vol. 211, Issue 4480, pp. 383-386
DOI: 10.1126/science.211.4480.383


Noble gas elemental and isotopic ratios were measured in a group of 13 "chondritic" stratospheric dust particles. Neon and argon are present in "solar" proportions; xenon appears to be dominated by contributions from "planetary" sources. The apparent xenon concentration is higher than that measured in any bulk meteorite, approaching the concentration found in the noble gas-rich, acid-insoluble residues from carbonaceous chondrites.