Caracterización multianalítica (SEM-EDX, microsonda electrónica y espectroscopía Raman) de los cóndrulos y de la matriz de la condrita carbonácea de Allende
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2018
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Sociedad Geológica de España
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Abstract
Allende es un ejemplo emblemático de condrita carbonácea caída en Pueblito de Allende (México) en 1969. Este meteorito es especialmente importante debido a su composición primitiva, como uno de los principales representantes de los primeros estadios del Sistema Solar. En este estudio se ha llevado a cabo una nueva caracterización multianalítica de esta condrita, centrada en la mineralogía y la geoquímica de los cóndrulos y la matriz empleando varias técnicas: microscopía óptica, SEM-EDX, microsonda electrónica y espectroscopía Raman, siendo especialmente relevante estaúltima, que ha demostrado ser de gran utilidad aportando información sobre el mineral y su estructura.
Allende is an emblematic example of carbonaceous chondrite which fell in Pueblito de Allende (Mexico) in 1969. This meteorite is especially important due to its primitive composition, as one of the main representative examples of the first stages of the Solar System. In this study, a new multianalytical characterization of this chondrite has been carried out, focusing on the mineralogy and geochemistry of the chondrules and the matrix using several techniques: optical microscopy, SEM-EDX, electron microprobe and Raman spectroscopy, the latter has proven to be very useful providing information about the mineral and its structure.
Allende is an emblematic example of carbonaceous chondrite which fell in Pueblito de Allende (Mexico) in 1969. This meteorite is especially important due to its primitive composition, as one of the main representative examples of the first stages of the Solar System. In this study, a new multianalytical characterization of this chondrite has been carried out, focusing on the mineralogy and geochemistry of the chondrules and the matrix using several techniques: optical microscopy, SEM-EDX, electron microprobe and Raman spectroscopy, the latter has proven to be very useful providing information about the mineral and its structure.