%0 Journal Article
%T An¨¢lisis estratigr¨¢fico secuencial de las formaciones Anacleto y Allen (Cret¨¢cico Tard¨ªo) en el borde nororiental de Cuenca Neuquina, Argentina
%A Armas
%A Paula
%A S¨¢nchez
%A Mar¨ªa Lidia
%J Andean geology
%D 2011
%I Scientific Electronic Library Online
%X based on a detailed sedimentological study we carried out a sequential stratigraphic analysis of the upper cretaceous deposits of the anacleto formation and lower member of the alien formation in the north-eastern border of the neuquina basin. the lithofacies association allowed interpre-ting architectural elements of fluvial origin and tide influenced elements. three fluvial systems (a braided system, an anastomosed one, and a high sinuosity one), a proximal and a middle estuarine system were recognized for the anacleto formation. a distal estuarine system or estuary outlet was defined for the basal member of the alien formation. in the sequential stratigraphy analysis the following systems were identified: a low accommodation system tract in a continental environment limited by a flooding fluvial surface (discontinuity i) and discontinuity ii; and a high accommodation system tract and its equivalent transgressive system tract in a marine environment, with discontinuities iii, iv y v.
%K upper cretaceus
%K anacleto formation
%K alien formation
%K sequential stratigraphy
%K estuarine systems
%K fluvial systems
%K neuquina basin.
%U http://www.scielo.cl/scielo.php?script=sci_abstract&pid=S0718-71062011000100007&lng=en&nrm=iso&tlng=en