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Erste K/Ar- und 40AR/39Ar-Hornblende-Mineralalter des Taveyannaz-Sandsteins
1990
Preserved Fulltext
K/Ar-, 40Ar/3,Arand Sm/Nd-data were determined on andesitic hornblende of the Taveyannaz greywacke The data strongly support an age of ca. 32 Ma for the Taveyannaz volcanic event and likewise a close relation to the late-Alpine Bregaglia-intrusion Keywords Taveyannaz greywacke, andésites, pyroclastics, age determination, K/Ar-method, Sm/Nd-method Einleitung Die grünen und eigenartig gefleckten Sandsteine des Alpennordrandes wurden erstmals von Studer (1834) beschrieben. Er nannte dieses Gestein
doi:10.5169/seals-53602
fatcat:bsrxogwe4rglnhl7zhtric4cla