%0 Journal Article
%T Las tempestitas peloidales de la formaci¨®n Vaca Muerta (Tithoniano-Valanginiano) en el sector surmendocino de la Cuenca Neuquina, Argentina
%A Kietzmann
%A Diego A.
%A Palma
%A Ricardo M.
%J Latin American journal of sedimentology and basin analysis
%D 2011
%I Scientific Electronic Library Online
%X storm deposits (tempestites) have been extensively studied in the sedimentary record, particularly those deposits with hummocky cross-stratification, knowing their bathymetric ranks, facies models and their hydrodynamic conditions (harms et al., 1975; dott y burgeois, 1982; dumas y arnott, 2006). however, detailed studies in carbonate sediments are relatively scarce. recently, other types of interference generated at the picnocline interface (internal waves) were proposed to interpret similar deposits without being controlled by the position of the of storm-wave level (pomar et al., 2012). the tithonian - valanginian deposits in the southern mendoza - neuqu¨¦n basin are particularly interesting because of their association with a homoclinal carbonate ramp system. during the late jurassic - early cretaceous a series of marine sequences were developed throughout the basin that are grouped under the mendoza group. in the southern mendoza area it includes the vaca muerta formation (early tithonian - early valanginian), the chachao formation (early valanginian) and the agrio formation (early valanginian - early barremian) (figs. 1 and 2). the vaca muerta formation is widely distributed over the entire neuqu¨¦n basin. it consists of dark bituminous shales, marls and limestones deposited in response to a rapid and widespread marine transgression originated from the pacific ocean, as consequence of a tectonic phase of compressional relaxation (legarreta and uliana, 1991). while initial studies show significant variations in the proportions of different lithologies, sedimentological knowledge is still general, with the exception of contributions from the south of the basin (spalletti et al., 2000, 2008; scasso et al., 2002, 2005) and southern mendoza area (doyle et al., 2005; kietzmann et al., 2008, 2011). storm deposits are well developed in the vaca muerta formation. based on tempestites characteristics and their associated beds four distinct deposits have been identified in
%K tempestites
%K carbonate pseudomatrix
%K carbonate ramp
%K jurassic-cretaceous.
%U http://www.scielo.org.ar/scielo.php?script=sci_abstract&pid=S1851-49792011000200004&lng=en&nrm=iso&tlng=en