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Isotopic anomalies of noble gases in meteorites and their origins. VI Presolar components in the Murchison C2 chondriteRare gases were analyzed by stepped heating in five fractions of a chemically resistant residue from Murchison that had been separated according to grain size and resistance to HClO4. Nine gas components were recognized, of which three appear to be presolar: (1) Ne-E(H) released at 1000-1600 C and located in spinel; (2) Ne-E(L) released at less than 800 C and apparently located in a carbonaceous phase of grain size up to 10 microns; and (3) s-process Xe and Kr released at 1200-1600 C and located in a poorly characterized, possibly carbonaceous phase, distinct from the host phase of Ne-E(L).
Document ID
19800038809
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Alaerts, L.
(Chicago Univ. Chicago, IL, United States)
Lewis, R. S.
(Chicago Univ. Chicago, IL, United States)
Matsuda, J.-I.
(Chicago Univ. Chicago, IL, United States)
Anders, E.
(Chicago, University Chicago, Ill., United States)
Date Acquired
August 10, 2013
Publication Date
February 1, 1980
Publication Information
Publication: Geochimica et Cosmochimica Acta
Volume: 44
Subject Category
Lunar And Planetary Exploration
Accession Number
80A22979
Funding Number(s)
CONTRACT_GRANT: NGL-14-001-010
Distribution Limits
Public
Copyright
Other

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