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An Ion Microprobe Study of CAIs from CO3 Meteorites

Russell, S. S. and Greenwood, R. C. and Fahey, A. J. and Huss, G. R. and Wasserburg, G. J. (1994) An Ion Microprobe Study of CAIs from CO3 Meteorites. Meteoritics, 29 (4). pp. 525-526. ISSN 0026-1114.

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When attempting to interpret the history of Ca, Al-rich inclusions (CAIs) it is often difficult to distinguish between primary features inherited from the nebula and those produced during secondary processing on the parent body. We have undertaken a systematic study of CAIs from 10 CO chondrites, believed to represent a metamorphic sequence [e.g., 1], with the goal of distinguishing primary and secondary features. ALHA 77307 (3.0), Colony (3.0), Kainsaz (3.1), Felix (3.2), ALH 82101 (3.3), Omans (3.3), Lancé (3.4), ALHA 77003 (3.5), Warrenton (3.6), and Isna (3. 7) were examined by SEM and optical microscopy. We have identified 141 CAIs within these samples, and studied in detail the petrology of 34 inclusions.

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Huss, G. R.0000-0003-4281-7839
Wasserburg, G. J.0000-0002-7957-8029
Additional Information:© 1994 Meteoritical Society. Work supported by NASA NAWG-3040.
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Issue or Number:4
Record Number:CaltechAUTHORS:20131118-103617862
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:42523
Deposited By: Tony Diaz
Deposited On:19 Nov 2013 19:50
Last Modified:09 Mar 2020 13:19

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