RT Conference Proceedings T1 Ordovician metamorphis in the Sierras Pampeanas: New U-Pb shrimp ages in Central-East Valle Fértil and the Velasco Batholith. A1 Rapela, Carlos W. A1 Pankhurst, R.J. A1 Baldo, Edgardo G. A1 Casquet, César A1 Galindo Francisco, Mª del Carmen A1 Fanning, C.M. A1 Saavedra, Julio YR 2001 FD 2001 LK https://hdl.handle.net/20.500.14352/61111 UL https://hdl.handle.net/20.500.14352/61111 LA eng DS Docta Complutense RD 3 may 2024