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RESUMEN. En este estudio se ha realizado el estudio de residuos de ignimbrita de muestras extraídas de la cantera “Cobarsi”, ubicadas en el Aeropuerto Arequipa del Plio-Cuaternario y las tobas de Yura; las muestras se han caracterizado mediante Fluorescencia de Rayos X (FRX) y Difracción de rayos X (DRX).
1 de jun. de 2013 · The mineralogical composition of the ignimbrite was identified by X-ray powder diffraction (XRD) using a Philips X’Pert diffractometer with graphite-monochromated Cu Kα radiation. XRD patterns were obtained from random powder mounts prepared from ten samples.
10 de nov. de 2021 · X-ray diffraction confirms the mineralogy and geochemistry of the ignimbrites, defining the variety of the type of quartz (cristobalite) and feldspar phases. Semi-quantitatively, on the diffractogram, the white and beige ignimbrites have identical peak heights and reticulate and projection spacing.
Download scientific diagram | X ray Diffraction pattern for ignimbrite powder. The crystalline phases mainly detected are crystalline phases detected are cristobalite (C), sanidine (S), albite (A ...
1 de oct. de 2002 · The minerals identified by the X-ray diffraction analysis of bulk samples were quartz, feldspar, hornblende, pyroxene, cristobalite and tridymite. Smectite was detected locally as weak diffraction peaks from <2 μm fractions.
22 de may. de 2023 · The X-Ray Diffraction (XRD) mineralogical analysis was carried out by SIDIX from SEGAI of La Laguna University with a Panalytical X´Pert equipment for Powder Diffraction (Cu Kα radiation). The samples were previously pulverized to particle size below 63 μm.
7 de nov. de 2023 · Petrographic, mineralogical and chemical properties were obtained via polarisation microscopy, X-ray diffraction and X-ray fluorescence. The samples were subjected to 60 cycles of a salt mist environment, following relevant European standards.
