Benjamin, T. M. and Duffy, C. J. and Maggiore, C. J. and Rogers, P. S. Z. and Woolum, D. S. and Burnett, D. S. and Murrell, M. T. (1984) Microprobe analyses of rare earth element fractionation in meteoritic minerals. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 3 (1-3). pp. 677-680. ISSN 0168-583X. https://resolver.caltech.edu/CaltechAUTHORS:20150427-070213286
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Abstract
Two meteorites were analyzed by PIXE with the Los Alamos nuclear microprobe. The enstatite achondrite Peña Blanca Spring and the ordinary chondrite St Severin were chosen as likely candidates for use in ^(244)Pu(t_(l/2)=82 my) cosmochronology and geochronology. These applications require the meteoritic minerals to have unfractionated actinides and lanthanides relative to “cosmic” elemental abundance ratios. The PIXE analyses produced evidence of actinide-lanthanide fractionation in Peña Blanca Spring oldhamite (CaS) whereas the St Severin phosphates, whitlockite and chlorapatite, do not exhibit this fractionation.
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| Additional Information: | © 1984 Published by Elsevier B.V. Available online 17 October 2002. This work was supported by the University of California, Institute of Geophysics and Planetary Physics (Grant #82-034), and by the United States Department of Energy, Office of Basic Energy Sciences, under contract KC-040302-0. | |||||||||
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| Issue or Number: | 1-3 | |||||||||
| Record Number: | CaltechAUTHORS:20150427-070213286 | |||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20150427-070213286 | |||||||||
| Official Citation: | T.M. Benjamin, C.J. Duffy, C.J. Maggiore, P.S.Z. Rogers, D.S. Woolum, D.S. Burnett, M.T. Murrell, Microprobe analyses of rare earth element fractionation in meteoritic minerals, Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Volume 3, Issues 1–3, April–May 1984, Pages 677-680, ISSN 0168-583X, http://dx.doi.org/10.1016/0168-583X(84)90462-2. (http://www.sciencedirect.com/science/article/pii/0168583X84904622) | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 56985 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | Ruth Sustaita | |||||||||
| Deposited On: | 27 Apr 2015 15:45 | |||||||||
| Last Modified: | 03 Oct 2019 08:19 |
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