TY - SER AU - Brinkworth,Walter AU - Vocaturo,Griselda AU - Loss,María Laura AU - Mortaloni,Enrique Matías AU - Giunta,David Lorenzo AU - Massaferro,Enrique Matías TI - Estudio cronoestratigráfico y evolución paleoambiental del jurásico inferior-medio en el engolfamiento de la Cuenca Neuquina PY - 2019/// CY - PB - KW - Mapas de facies KW - Cronoestratigrafía N2 - The early-middle Jurassic Cuyo Group of the Neuquén Basin is a sedimentary succession of up to 2500 m thick, it shows significant variations from deep-marine, shelf margin to inner-shelf deltaic and fluvial systems. An integrated understanding of the sedimentary system/faciesdistribution in a regional framework is essential to identify potential gas targets. This study discusses the impact of aregional conceptual model on the potential development of this unit at exploration and development scales.A basin scale interpretation was performed on the integration of an extensive subsurface database including 15000 km2 of 3D seismic surveys and available well data such as cores, logs, thin sections, biostratigraphy, zircon/datingand production data. Ten depositional prograding seismic cycles were identified. Each cycle exhibits a different shelf-to-slope arrangement as the basin progressively got filled in a northwest/west direction. Paleogeography andfacies distribution evolved through time from a shallow, low- gradient ramp setting during early basin configuration, to a well-defined shelf-to-slope profile that persisted until the basin shrink age.Four regional schematic cross-sections show the main stratigraphic discontinuities, variations of internal geometrieswithin each cycle, and changes in the supply-accommodation space relationships. These sections together with theisochronous maps of each cycle were used as inputs to build regional facies maps that document the evolution of thesedimentary infill. Outcrops located in the western margin of the Neuquén Basin show a complete source-to-sink profile, providing an analog to validate the interpretation of the subsurface conceptual model. Biostratigraphyand zircon dating linked outcrop and subsurface time intervals.The proposed conceptual model shows the chronostratigraphic relationships between deep-marine,shelf-margin and continental facies of the Cuyo Group at the basin scale. This model will open new exploration and development opportunities for this gas system UR - https://biblioteca.iapg.org.ar/ArchivosAdjuntos/Conexplor2018/1664.pdf ER -