Noble Gases in Stratospheric Dust Particles: Confirmation of Extraterrestrial Origin

Noble Gases in Stratospheric Dust Particles: Confirmation of Extraterrestrial Origin

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 concent...

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Veröffentlicht in:Science (American Association for the Advancement of Science) 1981-01, Vol.211 (4480), p.383-386
Hauptverfasser: Hudson, B., Flynn, G. J., Fraundorf, P., Hohenberg, C. M., Shirck, J.
Format: Artikel
Sprache:eng
Schlagworte:
640107 > Astrophysics & Cosmology-- Planetary Phenomena
ARGON
Atmospherics
Average linear density
CHEMICAL COMPOSITION
CHONDRITES
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
COSMIC GASES
DATA
Dunes
DUSTS
EARTH ATMOSPHERE
ELEMENTS
EXPERIMENTAL DATA
FLUIDS
GASES
INFORMATION
ISOTOPE RATIO
METEORITES
NEON
Noble gases
NONMETALS
NUMERICAL DATA
Particle mass
PARTICLE SIZE
RARE GASES
Sand
SIZE
Solar wind
STONE METEORITES 640200 > Atmospheric Physics
STRATOSPHERE
XENON
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Beschreibung
Zusammenfassung: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.
ISSN:0036-8075
1095-9203
DOI:10.1126/science.211.4480.383