Stratigraphic column of the Pucara Group in Chinchao section-Huanuco

• Autores: Reyes Rivera, Luis, Cotrina, Jimmy, Del Águila, Alan
• Formato: artículo
• Fecha de Publicación: 2012
• Institución: Universidad Nacional Mayor de San Marcos
• Repositorio: Revista UNMSM - IIGEO
• Lenguaje: español
• OAI Identifier: oai:ojs.csi.unmsm:article/3443
• Enlace del recurso: https://revistasinvestigacion.unmsm.edu.pe/index.php/iigeo/article/view/3443
• Nivel de acceso: acceso abierto
• Materia: carbonate; shale; structure; Arietites; carbonatada; lutitas; estructura “zebra”

The stratigraphic column of the Pucara Group in Chinchao -Huánuco section is 3500 m thick and is predominantly carbonated , is one of the most comprehensive in the region, still visible its base and top , comprising the Chambara , Aramachay and Condorsinga formations. The Chambara Formation consists of limestones biomicrítica , biopelmicritica , intraesparítica and dolomites with subparallel laminations, microcalciesferas concentrations of chert , stylolitic structures , calcite veinlets and traces of pyrite , its middle part contains interbedded black and carbonaceous shales. The Aramachay Formation consists of silty loams lajosas , interspersed with black carbonaceous shale Arietites Sinemurian , occur on your bumper hydrothermal alteration type "zebra" . Finally, Condorsinga biomicrite Formation consists of gray to light gray . The mineral potential is given by the "zebra" structure related to MVT deposits, and hydrocarbon potential for generating dark oil and black rocks .