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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Mineralogy and petrology 17 (1972), S. 23-45 
    ISSN: 1438-1168
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Description / Table of Contents: Summary The glass-bearing rocks from Koefels, Tyrol, have been investigated petrologically. Electron-microprobe Analyses of the phases and chemical bulk analyses of some rocks are presented. The presence of Cr- and Si-bearing nickel-iron, lechatelierite, potassium-feldspar-glass, olivine, as well as the pronounced inhomogenities of the glasses strongly suggest an impact origin of these rocks.
    Notes: Zusammenfassung Die glasführenden Gesteine von Köfels, Tirol, wurden petrologisch untersucht. Sowohl Elektronenstrahl-Mikrosondenanalysen der Phasen als auch chemische Pauschalanalysen einiger Gesteine werden angegeben. Das Vorhandensein von Cr- und Si-führendem Nickeleisen, Lechatelierit, Kalifeldspatglas, Fe-reichen Gläsern, Olivin sowie die kräftigen Inhomogenitäten in der Glasphase sind nur durch eine Impakt-Entstehung dieser Gesteine erklärbar.
    Type of Medium: Electronic Resource
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