IGEBA 23946
INSTITUTO DE GEOCIENCIAS BASICAS, APLICADAS Y AMBIENTALES DE BUENOS AIRES
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
ANÁLISIS DE FACIES E INTERPRETACIÓN PALEOAMBIENTAL DE LOS DEPÓSITOS DE LA FORMACIÓN ANDALHUALA (MIOCENO-PLIOCENO) EN LA LOCALIDAD DE ENCALILLA, PROVINCIA DE TUCUMÁN
Autor/es:
DANIEL A. GARCÍA LÓPEZ; PABLO JOAQUIN ALONSO MURUAGA; GUIDO ALONSO
Lugar:
Tucuman
Reunión:
Congreso; XX CONGRESO GEOLÓGICO ARGENTINO; 2017
Resumen:
Abstract: The Andalhuala Formation (Upper Miocene-Lower Pliocene) outcrops at different localities of Catamarca, Tucuman and Salta provinces. It is mainly composed of mudstones, sandstones and conglomerates with sporadic tuffaceous beds, recording continental deposition related to different fluvial settings. At the Encalilla locality (Tafí del Valle, Tucumán Province), the unit is characterized by two main facies. The first comprises mudstones with local occurrences of sandstones, representing deposition in a flood plain subenvironment. The second is composed of sandstones, gravelly-sandstones and conglomerates, representing sedimentation in a braided channel belt. Overall, the facies assemblage is interpreted to have been deposited in an anastomosing fluvial system, with subenvironments comprising a braided channel belt and a floodplain area with crevasse splays.
