Geology, structure and age of the Nahuel Niyeu Formation in the Aguada Cecilio area, North Patagonian Massif, Argentina - Greco, Gerson Alan; González, Pablo D.; González, Santiago Nicolás; Sato, Anna María; Basei, Miguel Angelo Stipp; Tassinari, Colombo Celso Gaeta; Sato, Kei; Varela, Ricardo; Llambias, Eduardo J. (Journal of South American Earth Sciences, 2015)