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Now showing items 41-47 of 47
Geochemical characterization of the Martian analogues Enekuri and Fruiz, located in the Basque-Cantabrian Basin, by spectroscopic techniques
(Elsevier, 2023-12)
This work presents the geochemical characterization of two Martian analogues located in the Basque-Cantabrian Basin: Enekuri and Fruiz. In contrast to previous works carried out on the coastline analogues Meñakoz and ...
Mineralogy of the LAR 12095 Martian shergottite as determined by micro-Raman and micro-X-ray fluorescence spectroscopies
(Wiley, 2023-11)
In this work, the geochemical characterization of the olivine-phyric Martian shergottite LAR 12095 was performed by using two complementary analytical techniques: micro-Raman and micro-energy dispersive X-ray fluorescence ...
Combined in situ XRF–LIBS analyses as a novel method to determine the provenance of central Mediterranean obsidians
(Springer Nature, 2023)
This work presents a new calibration method for determining the provenance of obsidian artefacts based on the combined use of XRF and laser-induced breakdown spectroscopy (LIBS). At first, obsidian samples collected from ...
Weathering alteration in the Antarctic environment as seen in the Miller Range (MIL) 090030 Martian meteorite
(Cambridge University Press, 2023-07)
The analysis of Martian meteorites is a key research to understand the mineralogical composition of Mars. However, they suffer different types of alteration due to the environment where they fall on Earth. These differences ...
Use of Temperature Controlled Stage Confocal Raman Microscopy to Study Phase Transition of Lead Dioxide (Plattnerite)
(MDPI, 2020-05-21)
The present work concerns the study of the phase transition of plattnerite [β-PbO2 lead (IV) oxide]-based samples when they are analysed by Raman spectroscopy. The laser-induced degradation process was carried out either ...
The effect of low temperature on the Raman spectra of calcium-rich sulfates on Mars
(Cambridge University Press, 2023-07)
Raman spectra (532 nm diode laser) of gypsum, syngenite and görgeyite powders were studied from 273 to 83 K every −10 K. Although it was found that not all the Raman peaks are temperature-sensitive, the effect of temperature ...
Looking for Novel Natural Gels to Improve Cleaning Methods for Bronze Leachates on Marble
(MDPI, 2023-10-25)
Marble is one of the materials most susceptible to copper leaching, resulting in easily identifiable turquoise stains on the marble. This problem is particularly relevant when we are talking about marble structures of ...