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Oxygen-isotopic composition and high-resolution secondary ion mass spectrometry imaging of Martian carbonate in Lafayette meteorite

Vicenzi, E. P. and Eiler, J. (1998) Oxygen-isotopic composition and high-resolution secondary ion mass spectrometry imaging of Martian carbonate in Lafayette meteorite. Meteoritics and Planetary Science, 33 (S4). A159-A160. ISSN 1086-9379. http://resolver.caltech.edu/CaltechAUTHORS:20130709-095420187

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Abstract

Carbonate from SNC meteorites gives insight into a variety of processes on and/or beneath the surface of Mars. In Lafayette, carbonate occurs in unusually intimate association with hydrous phases when compared with other carbonate-bearing SNCs [1]. We have measured the ^(18)O/^(16)O ratio of carbonate in the alteration veins of Lafayette using the magnetic sector ion microprobe. In addition, we obtained isotope images of major- and minor-element cations in veinlets with the focused ion beam (FIB) quadrupole SIMS. The spot size of the FIB probe used in this study (~0.03 µm) provides an opportunity for high spatial resolution chemical imaging, which is ideal for examining features in the fine-grained alteration assemblage.


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http://dx.doi.org/10.1111/j.1945-5100.1998.tb01327.xDOIUNSPECIFIED
http://onlinelibrary.wiley.com/doi/10.1111/j.1945-5100.1998.tb01327.x/abstractPublisherUNSPECIFIED
Additional Information:© 1998 The Meteoritical Society. Article first published online: 4 Feb. 2010.
Record Number:CaltechAUTHORS:20130709-095420187
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20130709-095420187
Official Citation:(1998), Abstracts. Meteoritics & Planetary Science, 33: A7–A172. doi: 10.1111/j.1945-5100.1998.tb01327.x
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:39265
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:10 Jul 2013 18:23
Last Modified:10 Jul 2013 18:23

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