Neoproterozoic to pre-ordovician very-low to low-grade metasedimentary rocks from sijan (sierra de Ambato) and campo Volcán (Puna) in northwestern Argentina.
Relevamiento: 2002.
Formación puncoviscana Geoquímica Neoprotozoico Origen Petrología Secuencia metasedimentaria
Campo Volcán Catamarca Jujuy Salta Sierra De Ambato Sijan