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Discovery of Meteoritic Lakargiite (CaZrO_3), a New Ultra-Refractory Mineral from the Acfer 094 Carbonaceous Chondrite

Ma, Chi (2011) Discovery of Meteoritic Lakargiite (CaZrO_3), a New Ultra-Refractory Mineral from the Acfer 094 Carbonaceous Chondrite. Meteoritics and Planetary Science, 46 (S1). A144-A144. ISSN 1086-9379. https://resolver.caltech.edu/CaltechAUTHORS:20130301-110528926

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Abstract

During a nano-mineralogy investigation of the Acfer 094 carbonaceous chondrite, lakargiite (CaZrO_3) was identified as submicrometer inclusions in an isolated hibonite grain in section USNM 7233-1. The hibonite grain is described in Simon and Grossman [1]. Lakargiite is a recently found perovskite-group mineral from hightemperature skarns in ignimbrites of the Upper-Chegem volcanic structure, the North Caucasus, Russia [2]. Reported here is the first extraterrestrial occurrence of lakargiite, as a new ultrarefractory mineral in a primitive meteorite, among the first solids formed in the solar system. Field-emission SEM with EDS and electron back-scatter diffraction (EBSD) was used to characterize its composition and structure and associated phases.


Item Type:Article
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http://dx.doi.org/10.1111/j.1945-5100.2011.01221.xDOIUNSPECIFIED
http://onlinelibrary.wiley.com/doi/10.1111/j.1945-5100.2011.01221.x/abstractPublisherUNSPECIFIED
Additional Information:© 2011 The Meteoritical Society. Article first published online: 25 Jul. 2011.
Issue or Number:S1
Record Number:CaltechAUTHORS:20130301-110528926
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20130301-110528926
Official Citation:74th Annual Meeting of the Meteoritical Society, August 8–12, 2011, London, U.K. Meteoritics & Planetary Science, 46: A3–A264. doi: 10.1111/j.1945-5100.2011.01221.x
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:37241
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:01 Mar 2013 23:59
Last Modified:03 Oct 2019 04:45

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