Abstract

FOLGUERA, Alicia  and  ZARATE, Marcelo. La sedimentación neógena continental en el sectorextrandino de Argentina central. Rev. Asoc. Geol. Argent. [online]. 2009, vol.64, n.4, pp.692-712. ISSN 0004-4822.

The integration ofNeogene deposits in a regional framework evidences their large arealdistribution in the extra Andean foreland region of Central Argentina. Acorrelation scheme is proposed for placing the different lithostratigraphicunits identified within a regional geological evolutionary model. Thestratigraphic and sedimentological analyses suggest that after the marineregression of the Paranense Sea, two major cycles of continental deposition,separated by a regional unconformity, occurred in the late Miocene and thePliocene respectively. The areal extension of the Late Miocene and the Pliocenesedimentary basins does not coincide; the Pliocene basin with more restrictedareal extension, dominantly developed southward.

Keywords : Late Miocene; Pliocene; Neogene basins; Stratigraphy; Extra Andean Central Region.

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