TY - GEN AU - Lucassen,Friedrich AU - Escayola,Mónica AU - Romer,Rolf AU - Viramonte,José AU - Franz,Gerhard ED - International symposium on andean geodynamics, 4 TI - Isotopic composition of late mesozoic mafic rocks from the Andes (23-32°S) - how heterogeneous is the mantle source? N1 - bibliogr. p. 457 ER -