INVESTIGADORES
SPALLETTI Luis Antonio
congresos y reuniones científicas
Título:
Sedimentary characteristics and unconformities in the Del Ratón, El Planchón and Del Salto Formations. Neopaleozoic lithostratigraphy and new units in the San Juan Precordillera, Argentina.
Autor/es:
COLOMBO, F.; LIMARINO, C.O.; SPALLETTI, L.A.; BUSQUETS, P.; CARDÓ, R.; MÉNDEZ BEDIA, I. Y HEREDIA, N.
Lugar:
Viña del Mar
Reunión:
Congreso; GeoSur; 2013
Institución organizadora:
Universidad Andrés Bello
Resumen:
In the western Precordillera, and especially in the area around kilometre 114 of National Road 20, along
the San Juan River valley, the Upper Paleozoic stratigraphic record is composed of the Del Ratón, El
Planchón, Del Salto, La Escombrera and Quebrada de la Arena formations. Although most of these units
have been studied for many years (Sessarego, 1983; Limarino & Cesari, 1992), consistent information on
their stratigraphic arrangement, facies and processes of accumulation is still lacking. For instance, unreliable
data about fossil remains identified as Devonian (Kerlleñevich, 1967), which have never been subsequently
cited, have given rise to significant problems concerning the stratigraphic location of the El Planchón Fm and
related units (Amenábar & di Pasquo, 2008).