Micro-XANES (W-L2) study of the Sikhote-Alin meteorite.

Autor: Darin, Fedor, Sorokoletov, Dmitriy, Rakshun, Iakov, Darin, Andrey, Volodin, Aleksandr, Kriventsov, Vladimir, Knyazev, Boris, Vinokurov, Nikolay
Předmět:
Zdroj: AIP Conference Proceedings; 2020, Vol. 2299 Issue 1, p1-5, 5p
Abstrakt: Fragments of the Sikhote-Alin meteorite sample were examined by two-dimensional panoramic scanning micro-XRF-SR method using the principle of localization of inclusions. Inclusions were found with an abnormally high W content. High-precision 2D micro-XRF scanning method was used for analysis of inclusion. To determine the nature of the origin of tungsten in the sample particle for the selected inclusion, micro-XANES studies were performed. It was shown that obtained XANES data indicates rather the introduction of tungsten-containing particles during the process of sample preparation than about its extraterrestrial cosmic origin. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index