Calderón Cahua, Ysabel The southern Marañon basin: an active foredeep wedge-top transition zone inherited from pre-Cretaceous structures - Lima Sociedad Geológica del Perú 2012 - 4 p. ilus. Subjects--Topical Terms: ANTEFOSADEFORMACIONFAJA SUBANDINAGEOLOGIA ESTRUCTURALTECTÓNICA Subjects--Geographic Terms: LORETOPERU Subjects--Index Terms: CUENCA MARAÑON