RT Journal Article T1 La glaciación del límite Ordovícico-Silúrico en el Altiplano de Perú: evidencias e implicaciones tectónicas T1 Latest Ordovician-Early Silurian glaciation in the Peruvian Altiplano: evidence and tectonic implications A1 Díaz Martínez, Enrique A1 Acosta, H. A1 Rodríguez, R. A1 Carlotto, V. A1 Cárdenas, J. AB The Lower Paleozoic strati graphic sequence cropping out immediately to the north of Ayaviri (Peruvian Altiplano) belongs to the Eastern Cordillera tectonostratigraphic domain, and includes the Sandia, San Gabán and Ananea formations. Clacially-striated and faceted clasts found within the diamictites of the San Gabán Formation provide the first evidence for the late Ashgill-Llandovery glaciation in the Peruvian Altiplano, an area where this unit was previously considered not to be deposited. The marked difference between the Lower Paleozoic sequences of the Altiplano and Eastern Cordillera tectonostratigraphic domains suggests important tectonic shortening along the boundary fault zone PB Sociedad Geológica de España YR 1999 FD 1999 LK http://hdl.handle.net/10272/10091 UL http://hdl.handle.net/10272/10091 LA spa DS Repositorio Institucional de la Universidad de Huelva RD 1 jun 2026