Moessbauer Spectroscopy of SNC Meteorites
Abstract
With the inclusion of Moessbauer spectrometers in the instrument payloads of both MER landers in the upcoming Athena mission, it is timely to re-examine Moessbauer data on SNC meteorites and fill the gaps in our state of knowledge. Much of this work was done by Roger Burns ten years ago on whole rock samples, but the research effort was cut short in 1993. In this project, we are summarizing existing Moessbauer spectra of SNC meteorites and showcasing new results from a state-of-the-art spectrometer customized to accommodate smaller (less than 10 mg) samples. The results demonstrate the problems inherent in drawing conclusions about individual phases chemistry on the basis of Moessbauer spectra of whole rock samples.
- Publication:
-
Unmixing the SNCs: Chemical, Isotopic, and Petrologic Components of the Martian Meteorites
- Pub Date:
- January 2002
- Bibcode:
- 2002usnc.conf...15D
- Keywords:
-
- Meteoritic Composition;
- Mossbauer Effect;
- Snc Meteorites;
- Spectroscopy;
- Mineralogy;
- Gamma Rays;
- Rocks;
- Absorption Spectra;
- Olivine;
- Pyroxenes;
- Astrophysics