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On mobile element transport in heated AbeeAbee chondrite samples were heated at 700 C for one week at 0.00001 to 0.001 atm Ne or at 0.00001 atm H2. Samples heated in Ne showed greater loss of Bi and Se and greater retention of Zn than those heated in H2. An inverse relationship between Zn retention and ambient Ne pressure was found. Seven trace elements (Ag, Co, Cs, Ga, In, Te, and Tl) were retained or lost to the same extent regardless of the heating conditions. Variations in the apparent activation energy for C above and below 700 C suggest that diffusive loss from different hosts and/or different mobile transport processes over the temperature range may have been in effect.
Document ID
19790052379
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Ikramuddin, M.
(Purdue Univ. West Lafayette, IN, United States)
Lipschutz, M. E.
(Purdue University West Lafayette, Ind., United States)
Gibson, E. K., Jr.
(NASA Johnson Space Center Geochemistry Branch, Houston, Tex., United States)
Date Acquired
August 9, 2013
Publication Date
March 31, 1979
Publication Information
Publication: Meteoritics
Volume: 14
Subject Category
Lunar And Planetary Exploration
Accession Number
79A36392
Funding Number(s)
CONTRACT_GRANT: NGL-15-005-140
Distribution Limits
Public
Copyright
Other

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