Resumen

ROSSELLO, E.A.; OTTONE, E.G.; HARING, C.E.  y  NEVISTIC, V.A.. Tectonic and paleoenvironmental significance of the Paleogene coal seams of Estancia La Correntina, Fuegian Andes. Rev. Asoc. Geol. Argent. [online]. 2004, vol.59, n.4, pp.778-784. ISSN 0004-4822.

The continental sedimentary coaly outcrop of Estancia La Correntina, San Pablo River (54° 33' 01" S, 64° 00' 20" W), is described. The palynological assemblage compare closely with the similar one described from the Sloggett Formation, and is referred to the late Eocene-early Oligocene. Podocarpaceae and Fagaceae are the most abundant forms. Pteridophyta are subordinate. The palynological assemblage would probably reflect a lacustrine or swampy environment, with regular levels of moisture and a temperate climate. Correlations between Estancia La Correntina and Bahía Sloggett outcrops support a NNW trending tectonic corridor, developed on pre-Paleogene units that controlled the deposition of continental sequences during the Eocene/ Oligocene in the Fueguian Cordillera.

Palabras clave : Estancia La Correntina; Late Eocene/ early Oligocene; Palynology; Tectonics; Tierra del Fuego; Argentina.

        · resumen en Español     · texto en Español     · Español ( pdf )