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Drăgusanu and Tanaka (1999) provide intriguing new chemical and isotopic analyses of amphibolites and gneisses from the Cumpăna Group, the oldest lithostratigraphic unit in the Getic‐Supragetic unit of the South Carpathians (Balintoni 1975; Pana 1994). Ten amphibolite whole‐rock data points form a linear trend in a plot of measured ^(143)Nd/^(144)Nd against ^(147)Sm/^(144)Nd (Drăgusanu and Tanaka 1999, fig. 3). Drăgusanu and Tanaka interpreted this as a 1.57‐Ga isochron. This age corresponds to the oldest determined magmatism in the south Carpathians and, if true, would be instrumental in elucidating the tectonomagmatic evolution of the Carpathian basement, which is obscured by younger orogenic cycles such as the Hercynian (Variscan) and the Alpine.

the journal of geology

1.57‐Ga Magmatism in the South Carpathians: Implications for the Pre‐Alpine Basement and Evolution of the Mantle under the European Continent: A Discussion