RT info:eu-repo/semantics/article
T1 ExoMars Raman Laser Spectrometer (RLS): development of chemometric tools to classify ultramafic igneous rocks on Mars
A1 Veneranda, Marco
A1 López Reyes, Guillermo Eduardo
A1 Manrique Martínez, José Antonio
A1 Sanz Arranz, Aurelio
A1 Lalla, Emmanuel Alexis
A1 Konstantinidis, Menelaos
A1 Moral Inza, Andoni Gaizka
A1 Medina García, Jesús
A1 Rull Pérez, Fernando
K1 Espectroscopia Raman, Quimiometría, Marte, Rocas
K1 ExoMars, Espectroscopia Raman, Quimiometría, Rocas Igneas ultramáficas, Marte
K1 2103.03 Espectroscopia
K1 2104.04 Geología Planetaria
K1 2104.07 Planetas
K1 2503.03 Geoquímica Exploratoria
K1 2506.13 Petrología Ignea y Metamórfica
AB This work aims to evaluate whether the multi-point analysis the ExoMars Raman Laser Spectrometer (RLS) will perform on powdered samples could serve to classify ultramafc rocks on Mars. To do so, the RLS ExoMars Simulator was used to study terrestrial analogues of Martian peridotites and pyroxenites by applying the operational constraints of the Raman spectrometer onboard the Rosalind Franklin rover. Besides qualitative analysis, RLS-dedicated calibration curves have been built to estimate the relative content of olivine and pyroxenes in the samples. These semi-quantitative results, combined with a rough estimate of the concentration ratio between clino- and ortho-pyroxene mineral phases, were used to classify the terrestrial analogues. XRD data were fnally employed as reference to validate Raman results. As this preliminary work suggests, ultramafc rocks on Mars could be efectively classifed through the chemometric analysis of RLS data sets. After optimization, the proposed chemometric tools could be applied to the study of the volcanic geological areas detected at the ExoMars landing site (Oxia Planum), whose mineralogical composition and geological evolution have not been fully understood
PB Nature Research
SN 2045-2322
YR 2020
FD 2020
LK http://uvadoc.uva.es/handle/10324/46255
UL http://uvadoc.uva.es/handle/10324/46255
LA eng
NO Scientifc Reports, Octubre 2020, vol. 10, n. 16954. p. 1-14
NO Producción Científica
DS UVaDOC
RD 26-abr-2024