The Lower Cretaceous Centenario Formation: A subsurface unit in the northeastern border of the Neuquén Basin revisited

Iñigo, Juan; Pazos, Pablo J.; Novara, María E.; Comerio, Marcos

doi:10.1016/j.jsames.2019.03.031

Cited by 8 publications

(6 citation statements)

References 7 publications

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“…2b) (Cabaleiro, 2002;Cabaleiro et al, 2002). The onset of deposition began with a marine transgression (TST) and continued during a highstand systems tract (HST) (Rebasa et al, 1992;Vottero and Cafferata, 1992;Cabaleiro et al, 2002;Iñigo et al, 2019). A relatively shallow sea covered the Neuquén Embayment at that time (Fig.…”

Section: Geological Settingmentioning

confidence: 99%

“…A relatively shallow sea covered the Neuquén Embayment at that time (Fig. 1b), and strata of the HST are suggested to be deposited in littoral, deltaic, estuarine, and distal fluvial paleoenvironments (Cabaleiro et al, 2002;Cabaleiro, 2002;Cevallos et al, 2008;Casadío and Montagna, 2015;Iñigo et al, 2019). The top of the lower Centenario member is marked by an important sea-level fall that generated a sequence boundary (Cabaleiro et al, 2002;Cevallos et al, 2008;Iñigo et al, 2019).…”

Section: Geological Settingmentioning

confidence: 99%

“…The upper Centenario member is about 240 m thick. Its deposition started with another transgressive interval (TST), which is overlain by a progradational clastic system (HST), mainly representing the fluvial system (Cabaleiro et al, 2002;Casadío and Montagna, 2015;Iñigo et al, 2019). The distinction between the lower and upper Centenario members becomes increasingly difficult towards the eastern limit of the Neuquén Basin due to their lithological similarity.…”

Section: Geological Settingmentioning

confidence: 99%

“…The predominant trap type is structural, as represented by a regional northwest-southeast oriented anticline affected by igneous activity and smaller dome structures. The regional anticline is likely related to the basement structures (Iñigo et al, 2019). Stratigraphic traps occur due to a change in facies type or diagenetic changes in rock composition (Cevallos and Rivero, 2009;Delpino et al, 2014).…”

Section: Study Areamentioning

confidence: 99%

“…The Chadileuvú block is located approximately 150 km south-east from the Las Matras block, and consists of the lower Paleozoic granodiorite and monzogranite, Ordovician metamorphic rocks, Permian sedimentary rocks, and Permo-Triassic volcanic rocks (Sato et al, 2000;Llambías et al, 2003). Similarly, Iñigo et al (2019) proposed a local eastward and northeastward sediment supply for the Centenario Formation within the northeastern border of the Neuquén Basin.…”

Section: Study Areamentioning

confidence: 99%

See 4 more Smart Citations

Sedimentological and ichnological analyses of the continental to marginal-marine Centenario Formation (Cretaceous), Neuquén Basin, Argentina: Reservoir implications

Shchepetkina

Ponce

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et al. 2020

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Section: Geological Settingmentioning

confidence: 99%

Section: Geological Settingmentioning

confidence: 99%

Section: Geological Settingmentioning

confidence: 99%

Section: Study Areamentioning

confidence: 99%

Section: Study Areamentioning

confidence: 99%

See 3 more Smart Citations

Sedimentological and ichnological analyses of the continental to marginal-marine Centenario Formation (Cretaceous), Neuquén Basin, Argentina: Reservoir implications

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et al. 2020

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Deltas: New paradigms

Zavala,

Arcuri,

Zorzano

et al. 2024

The Depositional Record

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Deltas are deposits directly accumulated by land‐generated gravity flows in a standing body of water. The paradigm of deltaic sedimentation has dramatically changed during recent years, from the popular very simplified ternary models of marine littoral deltas towards more realistic and comprehensive models, considering the importance of sediment‐laden river discharges. Ternary delta models were designed for clean rivers, where a stream flow drags the sediments. Depending on the basin dynamics, these littoral deposits can be modified, forming tidal‐dominated, wave‐dominated or fluvial‐dominated littoral deltas. In recent years, a new classification of delta systems was proposed, based on contrasting the salinity of the receiving water body with the bulk density of the incoming fluvial discharge. Rivers are highly dynamic systems, and their discharges can be very variable in terms of flow duration and sediment concentration. Additionally, the salinity of the receiving water body can exhibit significant variability, especially in closed lakes and epicontinental seas, ranging from freshwater to brines. This scenario allows the distinction of three major delta categories (hypopycnal, homopycnal and hyperpycnal deltas) which can be in turn subdivided, defining seven delta types. Hypopycnal deltas form when the bulk density of the incoming flow is lower than the density of the water in the basin, allowing the definition of three delta types, corresponding to hypersaline littoral deltas, marine littoral deltas and brackish littoral deltas. Homopycnal deltas form when the bulk density of the incoming flow is similar to the density of the water in the basin, defining a delta type termed homopycnal littoral deltas. Hyperpycnal deltas form when the bulk density of the incoming flow is higher than the density of the water in the basin, allowing the definition of three categories termed hyperpycnal littoral deltas, hyperpycnal subaqueous deltas and hyperpycnal fan deltas.

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A review on depositional systems, bioevents and paleogeography of the Valanginian-Hauterivian Neuquén Sea: Refining sedimentary and biological signals linked to the dynamics of epeiric seas

Schwarz

Remírez

Lazo

et al. 2022

Earth-Science Reviews

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The Lower Cretaceous Centenario Formation: A subsurface unit in the northeastern border of the Neuquén Basin revisited

Cited by 8 publications

References 7 publications

Sedimentological and ichnological analyses of the continental to marginal-marine Centenario Formation (Cretaceous), Neuquén Basin, Argentina: Reservoir implications

Sedimentological and ichnological analyses of the continental to marginal-marine Centenario Formation (Cretaceous), Neuquén Basin, Argentina: Reservoir implications

Deltas: New paradigms

A review on depositional systems, bioevents and paleogeography of the Valanginian-Hauterivian Neuquén Sea: Refining sedimentary and biological signals linked to the dynamics of epeiric seas

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