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Title

Blue thermoluminescence emission of the recently fallen meteorite. (Villalbeto de la Peña, Spain)

AuthorsCorrecher, Virgilio; Sánchez Muñoz, Luis ; García-Guinea, Javier ; Delgado Peris, Antonio
Issue Date2007
PublisherElsevier
CitationNuclear Instruments and Methods in Physics Research A, (580):637–640 (2007)
AbstractThis paper reports on the thermal stability of the natural blue thermoluminescence (TL) of a well-characterised meteorite fallen in Villalbeto de la Peña (Palencia, Spain) in January 4, 2004. The meteorite specimen exhibits a complex structure of the spectra emission a wide broad maximum peaked at about 320ºC that can be associated with consecutive breaking linking of bonds (e.g. of Al¿O, Cr¿O, Fe¿O) from lattices of several phases, i.e., olivine, low-Ca pyroxene, plagioclase and redox reactions. The natural TL emission seems to be essentially caused by the Na¿Ca plagioclase as the brighter material inside this L6 chondrite. The thermal stability tests, at different temperatures, confirm a continuous trap distribution with progressive changes in the glow curve shape, intensity and temperature position of the main peak. In consequence, the glow curve analysis methods commonly used for synthetic materials based on singlediscrete traps cannot be applied for this material.
URIhttp://hdl.handle.net/10261/82443
DOI10.1016/j.nima.2007.05.029
Identifiersdoi: 10.1016/j.nima.2007.05.029
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