2026-05-30T04:43:31Zhttps://riuma.uma.es/rest/oai/request

oai:riuma.uma.es:10630/405982026-02-03T11:06:01Zcom_10630_2254col_10630_37953

Integration of SuperCam based chemical imaging and clustering to correlate geochemistry and mineralogy in heterogeneous samples García-Gómez, Laura Población, Iraxte Delgado-Pérez, Tomás Laserna-Vázquez, José Javier Velasquez, Marizu Porizka, Pavel Buday, Jakub Kaiser, Josef Lobato, Álvaro Casado, Ana I. Taravillo, Mercedes Madariaga, Juan Manuel Aramendia, Julene Rull, Fernando Carrizo, Daniel Martínez-Frías, Jesús Vadillo-Pérez, Iñaki Vadillo-Pérez, José Miguel Fortes-Román, Francisco Javier Cabalín-Robles, Luisa María Espectroscopía de plasma inducido por láser Algoritmos computacionales Aprendizaje automático (Inteligencia artificial) Planetas - Exploración Peridotites are ultramafic rocks whose mineralogical diversity makes them suitable case studies for testing analytical methodologies. In this study, a peridotite sample from the Ronda massif (Málaga, Spain) was examined demonstrating a practical methodology for distinguishing geochemically distinct regions within complex lithologies. The sample was analyzed using a multi-instrumental approach combining laser-induced breakdown spectroscopy (LIBS), micro-energy dispersive X-ray fluorescence (µ-EDXRF), and Raman spectroscopy, all of them integrated in the Perseverance rover payload. LIBS and µ-EDXRF were used to assess elemental composition and spatial distribution across the sample, whereas Raman spectroscopy confirmed the presence of mineral phases such as, olivine, pyroxenes, and chromiferous spinels in specific regions. Elemental LIBS ratios such as Mg# and Cr# further supported the identification of compositional variations related to mineral phases. Spectral LIBS data were processed using k-means clustering to segment geochemical zones and detect spatial trends. This integrated spectroscopic and statistical approach enables interpretation of ultramafic rock complexity and offers an efficient framework for planetary exploration under mission constraints. 2025-11-05T10:20:44Z 2025-11-05T10:20:44Z 2025-11-05T10:20:44Z 2025-10-29 journal article García-Gómez, L., Población, I., Delgado, T. et al. Integration of SuperCam based chemical imaging and clustering to correlate geochemistry and mineralogy in heterogeneous samples. Sci Rep 15, 37808 (2025). https://doi.org/10.1038/s41598-025-21770-4 https://hdl.handle.net/10630/40598 10.1038/s41598-025-21770-4 eng http://creativecommons.org/licenses/by-nc-nd/4.0/ open access Attribution-NonCommercial-NoDerivatives 4.0 Internacional Nature