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Strong Calcite-Like Spectra Cathodoluminescence Emission from Allende Meteorite Cai Phases

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García Guinea, Javier y Tornos Arroyo, Fernando y Azumendi García, Oscar y Ruiz Pérez, Javier y Correcher Delgado, Virgilio (2011) Strong Calcite-Like Spectra Cathodoluminescence Emission from Allende Meteorite Cai Phases. Spectroscopy letters, 44 . pp. 516-520. ISSN 0038-7010

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URL Oficial: http://www.tandf.co.uk/journals/titles/00387010.asp



Resumen

Calcium–aluminum-rich inclusions (CAIs) of Allende CV3
chondrite were studied by Environmental Scanning Electron Microscopy
(ESEM), Energy Dispersive Spectrometry (EDS), Backscattering (BS), and
Spectra Cathodoluminescence (CL). CAI minerals show spectra CL curves
exceeding the 450,000 a.u. with a large homogeneity along the white inclusions.
CL curve features fit perfectly with terrestrial patterns of stressed specimens
of weathered marble and limestone in which hydroxyl groups may
be involved. Crypto-clusters of CaCO3, undetectable by means of EPMA,
EDS, and Micro-Raman techniques, coupled to the CAI phases are inferred
from the spectral CL data and from the carbon and calcium contents
provided by the EDS probe.


Tipo de documento:Artículo
Palabras clave:Allende, Ca-Al inclusions (CAIs), Calcite, Cathodoluminescence, Meteorite, Spectra
Materias:Ciencias > Geología > Geodinámica
Código ID:16920
Depositado:30 Oct 2012 08:54
Última Modificación:30 Oct 2012 08:54

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