NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Ti(3+) in meteoritic and synthetic hiboniteThis paper describes the first direct determination (performed by electron spin resonance spectroscopy) of Ti(3+) in hibonite from inclusion SH-7 of the Murchison C2 chondrite and in synthetic hibonites of four compositions, three of which corresponded to the compositions of blue hibonites and one to that of an orange hibonite. The Ti(3+) concentration in the hibonite from SH-7 was found to range from 0.35 to 0.44 percent, while the Ti(3+) contents in three synthetic blue hibonites ranged from 0.02 to 0.64 percent. Orange hibonite contained no Ti(3+), supporting an earlier conclusion that the orange-to-blue transition is associated with the presence of Ti(3+). At constant temperature and oxygen fugacity, the Ti(3+)/Ti(4+) ratio in synthetic hibonites was found to increase with decreasing V, but was not strongly dependent on bulk Ti. Fe and Cr contents did not have a significant effect on the amount of Ti(3+).
Document ID
19880060614
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Beckett, John R.
(California Inst. of Tech. Pasadena, CA, United States)
Stolper, Edward
(California Institute of Technology Pasadena, United States)
Live, David
(California Institute of Technology, Jet Propulsion Laboratory, Pasadena; Emory University Atlanta, GA, United States)
Tsay, Fun-Dow
(California Institute of Technology Jet Propulsion Laboratory, Pasadena, United States)
Grossman, Lawrence
(Chicago, University IL, United States)
Date Acquired
August 13, 2013
Publication Date
June 1, 1988
Publication Information
Publication: Geochimica et Cosmochimica Acta
Volume: 52
ISSN: 0016-7037
Subject Category
Lunar And Planetary Exploration
Accession Number
88A47841
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available