000			02037nmc a2200253 4500
005			20260520010330.0
008			260224s xxu
082			_aCD I116 64 0015469
245	0	0	_aBioestratigrafía y geocronología de alta resolución de la Formación Vaca Muerta, Cuenca Neuquina
270			_a20/10/2016 ; 20/10/2016
300			_a24 p.
520			_aHigh Resolution Biostratigraphy and Geochronology of the Vaca Muerta Formation, Neuquén Basin In this work we present new results from studies of ammonites and calcareous nannofossils in selected surface sections of the Vaca Muerta Formation that have yielded a precise biochronology on this unit. Furthermore, these studies have been correlated with the classical biozonations of the Tethys in the case of the ammonites and have also adjusted events of calcareous nannofossils recognized in the Neuquén Basin with those of the Tethys. Geochronological U-Pb dating performed at both the Vaca Muerta and the underlying Tordillo Formation has provided absolute ages of both lithostratigraphic units. These data contrast markedly with the currently accepted ages for this interval by the International Commission on Stratigraphy (ICS) and the Geological Time Scales (GTS 2012) and are about 5 million years younger. Finally, we stress the importance and need for detailed biostratigraphic studies that detect tectonic disturbances showing as an example the classical locality of La Yesera in northern Neuquén.
773			_g
942			_cCONGTP
100	1		_aAguirre-Urreta, Beatriz _955684
100	1		_aVennari, Verónica V. _955685
100	1		_aLescano, Marina _955686
100	1		_aNaipauer, Maximiliano _955687
100	1		_aConcheyro, Andrea _955688
100	1		_aRamos, Víctor A. _9953
111	2		_aCongreso de Exploración y Desarrollo de Hidrocarburos (9no. : 2014 nov. 3-7 : Mendoza) _954287
999			_c189770 _d189770
856			_uhttps://biblioteca.iapg.org.ar/ArchivosAdjuntos/CONEXPLOR2014/245-Bioestratigrafiaygeocronologia.pdf