RT info:eu-repo/semantics/article
T1 Spectroscopic study of olivine-bearing rocks and its relevance to the ExoMars rover mission
A1 Veneranda, Marco
A1 Manrique Martínez, José Antonio
A1 López Reyes, Guillermo Eduardo
A1 Medina García, Jesús
A1 Torre Fernández, Imanol
A1 Castro, Kepa
A1 Madariaga Mota, Juan Manuel
A1 Lantz, Cateline
A1 Poulet, Francois
A1 Krzesińska, Agata M.
A1 Hellevang, Helge
A1 Werner, Stephanie C.
A1 Rull Pérez, Fernando
K1 Spectroscopy; Raman; RLS; ExoMars; olivine;
AB We present the compositional analysis of three terrestrial analogues of Martian olivine-bearing rocks derived from both laboratory and flight-derived analytical instruments. In the first step, state-of-the-art spectroscopic (XRF, NIR and Raman) and diffractometric (XRD) laboratory systems were complementary used. Besides providing a detailed mineralogical and geochemical characterization of the samples, results comparison shed light on the advantages ensured by the combined use of Raman and NIR techniques, being these the spectroscopic instruments that will soon deploy (2021) on Mars as part of the ExoMars/ESA rover payload. In order to extrapolate valuable indicators of the mineralogical data that could derive from the ExoMars/Raman Laser Spectrometer (RLS), laboratory results were then compared with the molecular data gathered through the RLS ExoMars Simulator. Beside correctly identifying all major phases (feldspar, pyroxene and olivine), the RLS ExoMars Simulator confirmed the presence of additional minorcompounds (i.e. hematite and apatite) that were not detected by complementary techniques. Furthermore, concerning the in-depth study of olivine grains, the RLS ExoMars simulator was able to effectively detect the shifting of the characteristic double peak around 820 and 850 cm 1, from which the Fe-Mg content of the analysed crystals can be extrapolated. Considering that olivine is one of the main mineral phases of the ExoMars landing site (Oxia Planum), this study suggests that the ExoMars/RLS system has the potential to provide detailed information about the elemental composition of olivine on Mars.
PB Elsevier
SN 1386-1425
YR 2019
FD 2019
LK http://uvadoc.uva.es/handle/10324/46257
UL http://uvadoc.uva.es/handle/10324/46257
LA eng
NO Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2019, Vol. 223, 117360
NO Producción Científica
DS UVaDOC
RD 07-feb-2025