Ortíz B., Franklin Massive sulfides in Colombia - Berlin Springer-Verlag 1990 - pp. 379-387 ilus. - Society for Geology Applied to Mineral Deposits. Special Publication . Subjects--Topical Terms: GEOLOGIA ECONOMICAMETALOGENIASULFUROS MASIVOSYACIMIENTOS ESTRATOLIGADOS Subjects--Geographic Terms: COLOMBIA Universal Decimal Class. No.: 553(238.1)/F75|16