Summary
On the basis of a mineralogical, petrological and chemical study of a “greenstone” complex intercalated in a phyllitic formation in the Western Peloritani Mountains, two main rock types can be distinguished: amphibole-chlorite metabasite (with traces of an old generation of glaucophane), and albite metabasite. The two rock types show considerable differences in composition, a consequence of sodium metasomatism. The study indicates that the greenstone complex is a metaspilite.
Zusammenfassung
Aufgrund des mineralogischen, petrologischen und chemischen Studiums eines Komplexes von “Grünsteinen”, die einer Phyllitformation der westlichen Peloritani-Berge eingeschaltet ist, können zwei Hauptgesteinstypen unterschieden werden: amphibolischchloritischer Metabasit (mit Spuren einer alten Generation von Glaukophan) und Albitmetabasit. Die zwei Gesteinstypen haben beträchtlich verschiedene Zusammensetzungen; das ist die Folge einer Natron-Metasomatose. Die Untersuchung zeigt, daß der Komplex von Grünsteinen ein Metaspilit ist.
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Lucido, G. On a peculiar metabasite in hercynian phyllites (sicily). TMPM Tschermaks Petr. Mitt. 23, 51–63 (1976). https://doi.org/10.1007/BF01081869
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DOI: https://doi.org/10.1007/BF01081869