21-EPN-FT1-029: Petrographical, mineralogical and geochemical study of the meteorite Gueltat Zemmour Morocco, observed fall in August 2018.
Visit by El Mehdi El Hachimi, Hassan II University of Casablanca (Morocco) to TA2 Facility 3 – NHM Petrology, Mineralogy and Chemistry Facility (UK).
Dates of visit: 28 November -16 December 2022
Report Summary: The Gueltat Zemmour meteorite project was undertaken to conduct laboratory analyses using various techniques, such as X-ray diffraction (XRD), scanning electron microscopy (SEM), electron probe microanalysis (EPMA), and laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS). The XRD results were divided into two aspects: mineral identification and mineral quantification. The SEM technique was performed on two sections and provided EDS analyses of interesting mineral phases on the meteorite, as well as compositional and single element maps. The EPMA technique was used to analyze the major and minor element compositions of sulfide, silicate, and metal. The LA-ICP-MS technique was used to determine trace element compositions in areas of interest determined by SEM and EPMA, and no halite minerals were found. The analyses yielded numerous encouraging results, including 500 SEM spectra, 177 analyses for silicates, 69 for metal and sulfides from EPMA, and 48 analyses from LA-ICP-MS. Therefore, the results from SEM, XRD, EPMA, and particularly LA-ICP-MS appear to represent the completeness of the scientific data required to create a brilliant research article.
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