000			02945nmc a2200277 4500
005			20260521181215.0
008			260224s2018 xxu esp
041			_aEspañol
082			_a068.82 553.28 C62 2018 0015658
100	1		_aBoll, Andrés _91976
100	1		_aLinari, Víctor _958735
111	2		_aCongreso de Exploración y Desarrollo de Hidrocarburos (10mo. : 2018 nov. 5 - 9 : Mendoza) _9573
245	0	0	_aFactores controlantes de la distribución de hidrocarburos en el flanco suroeste de la subcuenca de Lomas de Olmedo. Cuenca Cretácica, noroeste de Argentina
260			_c2018
270			_a02/09/2025 ; 29/03/2019
300			_a29 p. ; 157-186
520			_aThis article proposes that most -if not all- of the oil fields in the southwest sector of the Lomas de Olmedo Sub-basin, have an early structural control ("paleo-structures"). That characteristic is clearly recognizable in 3D seismic, however, it is difficult to map with 2D seismic or wells data alone.Timing of oil generation-expulsion in relation to the migration pathways and available traps is a key process of the Yacoraite-Yacoraite (!) petroleum system. This is evidenced in the distribution of the oil fields in relation to the structural configuration of the Yacoraite Fm, prior to the main phase of the Andean Orogeny (Pliocene-Recent).This Andean orogeny is responsible for the uplift of the Sierra de Santa Bárbara and the reactivation (tectonic inversion) of many sub-surface structures, especially towards the west of the analyzed sector. Rather than contributing to the preservation of hydrocarbon accumulations, it has affected them, possibly making them re-migrate, which has been inefficient according to the information available so far. An example of this would be the great anticline of Lomas de Olmedo that proved unproductive.There is still no precise data on the moment of expulsion of the hydrocarbon; however, it is clear that the generation pod of the Yacoraite Fm coincides with the depocenter of the Salta Gr. and with the greater initial thicknesses of the Cenozoic deposits, independently of the current structure. Thus, the critical moment would be located towards the late Miocene or early Pliocene, before the main Andean compressive phase was activatedThe so-called early structuring comprises extensional movements occurred during the accumulation of the Yacoraite and Olmedo formations as well as a series of events with subtle and active compressive characteristics during the accumulation of the Santa Bárbara Subgroup (Paleocene - Eocene) and the pre-orogenic Cenozoic
650		0	_aGrupo Salta _958736
650		0	_aSísmica 3D _91601
650		0	_aSísmica 2D _958737
650		0	_aEstratigrafía _9783
650		0	_aTectónica _9811
856			_uhttps://biblioteca.iapg.org.ar/ArchivosAdjuntos/Conexplor2018/1703.pdf
942			_cCONGTP _2ddc
999			_c192806 _d192806