Error Analysis of Remotely-Acquired Mossbauer SpectraOn the Mars Exploration Rovers, Mossbauer spectroscopy has recently been called upon to assist in the task of mineral identification, a job for which it is rarely used in terrestrial studies. For example, Mossbauer data were used to support the presence of olivine in Martian soil at Gusev and jarosite in the outcrop at Meridiani. The strength (and uniqueness) of these interpretations lies in the assumption that peak positions can be determined with high degrees of both accuracy and precision. We summarize here what we believe to be the major sources of error associated with peak positions in remotely-acquired spectra, and speculate on their magnitudes. Our discussion here is largely qualitative because necessary background information on MER calibration sources, geometries, etc., have not yet been released to the PDS; we anticipate that a more quantitative discussion can be presented by March 2005.
Schaefer, Martha W. (Louisiana State Univ. Baton Rouge, LA, United States)
Dyar, M. Darby (Mount Holyoke Coll. South Hadley, MA, United States)
Agresti, David G. (Alabama Univ. Birmingham, AL, United States)
Schaefer, Bradley E. (Louisiana State Univ. Baton Rouge, LA, United States)
September 7, 2013
January 1, 2005
Publication: Lunar and Planetary Science XXXVI, Part 18