Oxygen-isotopic composition and high-resolution secondary ion mass spectrometry imaging of Martian carbonate in Lafayette meteorite
- Creators
- Vicenzi, E. P.
- Eiler, J.
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.
Additional Information
© 1998 The Meteoritical Society. Article first published online: 4 Feb. 2010.Attached Files
Published - Eiler_1998pA159.pdf
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Additional details
- Eprint ID
- 39265
- DOI
- 10.1111/j.1945-5100.1998.tb01327.x
- Resolver ID
- CaltechAUTHORS:20130709-095420187
- Created
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2013-07-10Created from EPrint's datestamp field
- Updated
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2021-11-09Created from EPrint's last_modified field
- Caltech groups
- Division of Geological and Planetary Sciences (GPS)