Early evolution of the southern margin of the Neuquen Basin, Argentina: Tectono-stratigraphic implications for rift evolution and exploration of hydrocarbon plays
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作者:
D'Elia, Leandro
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Univ Nacl La Plata, CONICET, CIG, RA-1900 La Plata, Buenos Aires, ArgentinaUniv Nacl La Plata, CONICET, CIG, RA-1900 La Plata, Buenos Aires, Argentina
D'Elia, Leandro
[1
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Bilmes, Andres
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Univ Nacl La Plata, CONICET, CIG, RA-1900 La Plata, Buenos Aires, ArgentinaUniv Nacl La Plata, CONICET, CIG, RA-1900 La Plata, Buenos Aires, Argentina
Bilmes, Andres
[1
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Franzese, Juan R.
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Univ Nacl La Plata, CONICET, CIG, RA-1900 La Plata, Buenos Aires, ArgentinaUniv Nacl La Plata, CONICET, CIG, RA-1900 La Plata, Buenos Aires, Argentina
Franzese, Juan R.
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Veiga, Gonzalo D.
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Univ Nacl La Plata, CONICET, CIG, RA-1900 La Plata, Buenos Aires, ArgentinaUniv Nacl La Plata, CONICET, CIG, RA-1900 La Plata, Buenos Aires, Argentina
Veiga, Gonzalo D.
[1
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Hernandez, Mariano
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Univ Nacl La Plata, CONICET, CIG, RA-1900 La Plata, Buenos Aires, ArgentinaUniv Nacl La Plata, CONICET, CIG, RA-1900 La Plata, Buenos Aires, Argentina
Hernandez, Mariano
[1
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Muravchik, Martin
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Univ Nacl La Plata, CONICET, CIG, RA-1900 La Plata, Buenos Aires, ArgentinaUniv Nacl La Plata, CONICET, CIG, RA-1900 La Plata, Buenos Aires, Argentina
Muravchik, Martin
[1
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[1] Univ Nacl La Plata, CONICET, CIG, RA-1900 La Plata, Buenos Aires, Argentina
Long-lived rift basins are characterized by a complex structural and tectonic evolution. They present significant lateral and vertical stratigraphic variations that determine diverse basin-patterns at different timing, scale and location. These issues cause difficulties to establish facies models, correlations and stratal stacking patterns of the fault-related stratigraphy, specially when exploration of hydrocarbon plays proceeds on the subsurface of a basin. The present case study corresponds to the rift-successions of the Neuquen Basin. This basin formed in response to continental extension that took place at the western margin of Gondwana during the Late Triassic-Early Jurassic. A tectono-stratigraphic analysis of the initial successions of the southern part of the Neuquen Basin was carried out. Three syn-rift sequences were determined. These syn-rift sequences were located in different extensional depocentres during the rifting phases. The specific periods of rifting show distinctly different structural and stratigraphic styles: from non-volcanic to volcanic successions and/or from continental to marine sedimentation. The results were compared with surface and subsurface interpretations performed for other depocentres of the basin, devising an integrated rifting scheme for the whole basin. The more accepted tectono-stratigraphic scheme that assumes the deposits of the first marine transgression (Cuyo Cycle) as indicative of the onset of a post-rift phase is reconsidered. In the southern part of the basin, the marine deposits (lower Cuyo Cycle) were integrated into the syn-rift phase, implying the existence of different tectonic signatures for Cuyo Cycle along the basin. The rift climax becomes younger from north to south along the basin. The post-rift initiation followed the diachronic ending of the main syn-rift phase throughout the Neuquen Basin. Thus, initiation of the post-rift stage started in the north and proceeded towards the south, constituting a diachronous post rift event. This arrangement implies that the lower part of Cuyo Cycle, traditionally related to regional thermal subsidence, may be deposited during either mechanical subsidence or thermal subsidence according to its position within the basin. (C)) 2015 Elsevier Ltd. All rights reserved.
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Univ Fed Rio Grande do Norte, Postgrad Program Geodynam & Geophys, Natal, RN, BrazilUniv Fed Rio Grande do Norte, Postgrad Program Geodynam & Geophys, Natal, RN, Brazil
Rapozo, Barbara Ferreira
Cordoba, Valeria Centurion
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Univ Fed Rio Grande do Norte, Postgrad Program Geodynam & Geophys, Natal, RN, Brazil
Univ Fed Rio Grande do Norte, Dept Geol, Natal, RN, BrazilUniv Fed Rio Grande do Norte, Postgrad Program Geodynam & Geophys, Natal, RN, Brazil
Cordoba, Valeria Centurion
Antunes, Alex Francisco
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Univ Fed Rio Grande do Norte, Dept Geol, Natal, RN, BrazilUniv Fed Rio Grande do Norte, Postgrad Program Geodynam & Geophys, Natal, RN, Brazil
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Univ Nacl La Plata, CONICET, CIG, Diagonal 113 275,B1904DPK, La Plata, Buenos Aires, ArgentinaUniv Nacl La Plata, CONICET, CIG, Diagonal 113 275,B1904DPK, La Plata, Buenos Aires, Argentina
Franzese, Juan R.
D'Elia, Leandro
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Univ Nacl La Plata, CONICET, CIG, Diagonal 113 275,B1904DPK, La Plata, Buenos Aires, ArgentinaUniv Nacl La Plata, CONICET, CIG, Diagonal 113 275,B1904DPK, La Plata, Buenos Aires, Argentina
D'Elia, Leandro
Bilmes, Andres
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CENPAT CONICET, Inst Patagon Geol & Paleontol, Blvd Almirante Brown 2915,U9120ACD, Puerto Madryn, Chubut, ArgentinaUniv Nacl La Plata, CONICET, CIG, Diagonal 113 275,B1904DPK, La Plata, Buenos Aires, Argentina
Bilmes, Andres
Bucher, Joaquin
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Univ Nacl La Plata, CONICET, CIG, Diagonal 113 275,B1904DPK, La Plata, Buenos Aires, ArgentinaUniv Nacl La Plata, CONICET, CIG, Diagonal 113 275,B1904DPK, La Plata, Buenos Aires, Argentina
Bucher, Joaquin
Garcia, Micaela
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Univ Nacl La Plata, CONICET, CIG, Diagonal 113 275,B1904DPK, La Plata, Buenos Aires, ArgentinaUniv Nacl La Plata, CONICET, CIG, Diagonal 113 275,B1904DPK, La Plata, Buenos Aires, Argentina
Garcia, Micaela
Lopez, Manuel
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Univ Nacl La Plata, CONICET, CIG, Diagonal 113 275,B1904DPK, La Plata, Buenos Aires, ArgentinaUniv Nacl La Plata, CONICET, CIG, Diagonal 113 275,B1904DPK, La Plata, Buenos Aires, Argentina
Lopez, Manuel
Muravchik, Martin
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Univ Bergen, Dept Earth Sci, Allegaten 41, N-5007 Bergen, NorwayUniv Nacl La Plata, CONICET, CIG, Diagonal 113 275,B1904DPK, La Plata, Buenos Aires, Argentina
Muravchik, Martin
Hernandez, Mariano
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Univ Nacl La Plata, CONICET, CIG, Diagonal 113 275,B1904DPK, La Plata, Buenos Aires, ArgentinaUniv Nacl La Plata, CONICET, CIG, Diagonal 113 275,B1904DPK, La Plata, Buenos Aires, Argentina
机构:
Bayerngas Norge AS, POB 73, NO-0216 Oslo, NorwayBayerngas Norge AS, POB 73, NO-0216 Oslo, Norway
Blaich, O. A.
Tsikalas, F.
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Eni Norge AS, POB 701, NO-4064 Stavanger, Norway
Univ Oslo, Dept Geosci, POB 1047, NO-0316 Oslo, NorwayBayerngas Norge AS, POB 73, NO-0216 Oslo, Norway
Tsikalas, F.
Faleide, J. I.
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Univ Oslo, Dept Geosci, POB 1047, NO-0316 Oslo, NorwayBayerngas Norge AS, POB 73, NO-0216 Oslo, Norway
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Univ Fed Rio de Janeiro PPGL UFRJ, Programa Posgrad Geol, BR-21941916 Rio De Janeiro, BrazilUniv Fed Rio de Janeiro PPGL UFRJ, Programa Posgrad Geol, BR-21941916 Rio De Janeiro, Brazil
Assis, A. P.
Porto, A. L.
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MCTIC, Observ Nacl, Dept Geofis, BR-20921400 Rio De Janeiro, BrazilUniv Fed Rio de Janeiro PPGL UFRJ, Programa Posgrad Geol, BR-21941916 Rio De Janeiro, Brazil
Porto, A. L.
Schmitt, R. S.
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Univ Fed Rio de Janeiro, Dept Geol, IGEO, BR-21941916 Rio de Janeiro, BrazilUniv Fed Rio de Janeiro PPGL UFRJ, Programa Posgrad Geol, BR-21941916 Rio De Janeiro, Brazil
Schmitt, R. S.
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Linol, B.
Medeiros, S. R.
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Univ Fed Rio de Janeiro, Dept Geol, IGEO, BR-21941916 Rio de Janeiro, BrazilUniv Fed Rio de Janeiro PPGL UFRJ, Programa Posgrad Geol, BR-21941916 Rio De Janeiro, Brazil
Medeiros, S. R.
Correa Martins, F.
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UFRRJ, Dept Geociencias, BR-23897000 Seropedica, BrazilUniv Fed Rio de Janeiro PPGL UFRJ, Programa Posgrad Geol, BR-21941916 Rio De Janeiro, Brazil
Correa Martins, F.
Silva, D. S.
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Univ Fed Rio de Janeiro, Dept Geol, IGEO, BR-21941916 Rio de Janeiro, BrazilUniv Fed Rio de Janeiro PPGL UFRJ, Programa Posgrad Geol, BR-21941916 Rio De Janeiro, Brazil