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Aqueous alteration in the Kaba CV3 carbonaceous chondriteResults from TEM and SEM examinations of the Kaba CV3 carbonaceous chondrite are presented, showing that the chondrules and the matrix of Kaba have undergone pervasive low-temperature aqueous alteration, resulting in the formation of Fe-bearing saponite from glass and enstatite in chondrules, and from anhydrous silicates in matrix. The alteration products in Kaba were found to resemble those in other aqueously altered carbonaceous chondrites such as the Mokoia CV3 and in Orgueil CI chondrites and Y-82162 chondrites. However, Kaba lacks the abundant high-Al phyllosilicates, reported for CAIs from Mokoia, and the serpentine and ferrihydrite, found in Orgueil.
Document ID
19900056741
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Keller, Lindsay P.
(Arizona State Univ. Tempe, AZ, United States)
Buseck, Peter R.
(Arizona State University Tempe, United States)
Date Acquired
August 14, 2013
Publication Date
July 1, 1990
Publication Information
Publication: Geochimica et Cosmochimica Acta
Volume: 54
ISSN: 0016-7037
Subject Category
Lunar And Planetary Exploration
Accession Number
90A43796
Funding Number(s)
CONTRACT_GRANT: NSF DMR-86-11609
CONTRACT_GRANT: NAG9-59
CONTRACT_GRANT: NSF EAR-84-08163
Distribution Limits
Public
Copyright
Other

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