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Lucía Inés Martín,Denis Marchal,Silvia Barredo,Claudio Naides,Silvia Blanco
Pág. 345 - 381
The fissility is the ability of some rocks to split along relatively smooth surfaces parallel to the bedding. This property observed mostly in fine-grained rocks is particularly expressed in outcrops, where rocks are subjected to weathering processes. Mo...
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Ricardo Gómez,Maisa Tunik,Silvio Casadío
Pág. 256 - 274
The Upper Cretaceous nonmarine deposits of the Neuquén Basin have an important regional exposure. These deposits are included in the Neuquén Group, a well-studied unit in both the south and central part of the basin. However, the northernmost exposed bet...
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Nerina Canale,Juan José Ponce,Noelia B. Carmona,Martín N. Parada,Daniel I. Drittanti
Pág. 179 - 206
Sedimentologic and ichnologic analysis of the Middle Jurassic Lajas Formation in Bajada de Los Molles area allow recognizing upper offshore-lower shoreface deposits in transition to prodelta, delta front and interdistributary bay succesions. This system ...
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Carolina Náñez,Norberto Malumián
Pág. 183 - 210
At the Bajada del Jagüel and Opaso sections (Añelo low, Neuquén basin), the Maastrichtian to Danian mudstones of the Jagüel Formation, are overlain by a succession of ostreid coquinas, sandstones, and mudstones. This succession has been usually referred ...
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Elena Previtera
Pág. 345 - 367
The uppermost Cretaceous continental deposits of the Neuquén Basin (west-central Argentina) have yielded a high diversity vertebrate assemblage, including numerous dinosaur species. The Neuquén Group is the richest unit in remains of dinosaur of the basi...
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Fernando Lebinson,Martín Turienzo,Natalia Sánchez,Vanesa Araujo,María Celeste D?Annunzio,Luis Dimieri
Pág. 249 - 273
The Agrio fold and thrust belt is a thick-skinned orogenic belt developed since Late Cretaceous in response to the convergence between the Nazca and South American plates. The integration of new structural field data and seismic line interpretation allow...
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Paula Armas,María Lidia Sánchez
Pág. 97 - 113
The Allen Formation records the first Ingression Atlantic to the Neuquén Basin during the Late Cretaceous. The definition of lithofacies and facies associations interpretation for stratigraphic sections in Paso Córdoba and Salitral Moreno area, Río Negro...
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Gonzalo D. Veiga,Ernesto Schwarz,Luis A. Spalletti
Pág. 171 - 197
Integration of outcrop and subsurface information. A stratigraphic, palaeoenvironmental and sequence stratigraphic analysis of the Lotena Formation (upper Callovian-lower Oxfordian) is presented for an area of 2.500 km2 in the central portion of the Neuq...
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Sara Ballent,Andrea Concheyro,Guillermina Sagasti
Pág. 47 - 79
A bioestratigraphical and palaeoenvironmental study of the Agrio Formation, at the Cuesta del Chihuido section, southern Mendoza Province (35º45'S/69º34'W), Argentina, is presented. Thirty seven species of nannofossils, thirty four of foraminifers and si...
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Maria Lidia Sánchez,Estefanía Asurmendi,Paula Armas
Pág. 106 - 141
The Upper Cretaceous exposid in the northeastern part of the Neuquén Basin, southeast of Neuquén, Argentina. Río Neuquén Subgroup of continental origin, has been divided into two incomplete stratigraphic sequence units (SI y SII) on the basis of lithofac...
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Rita De la Cruz,Manuel Suarez
Pág. 3 - 24
RESUMEN. Durante el Jurasico, en el sector occidental de la cuenca de Neuquen (region de Lonquimay, Chile, entre los paralelos 38 y 39°S), se acumularon depositos sedimentarios marinos y volcanicos marinos y subaereos. Estos constituyen la Formacion Naci...
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Rita De la Cruz,Manuel Suarez
Pág. 3 - 24
RESUMEN. Durante el Jurasico, en el sector occidental de la cuenca de Neuquen (region de Lonquimay, Chile, entre los paralelos 38 y 39°S), se acumularon depositos sedimentarios marinos y volcanicos marinos y subaereos. Estos constituyen la Formacion Naci...
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Germán Otharán,Carlos Zavala,Mariano Arcuri,Mariano Di Meglio,Agustín Zorzano,Denis Marchal,Guillermina Köhler
Pág. 384 - 417
The conventional sedimentological model suggests that the accumulation of organic-rich fine-grained sedimentary rocks (<62.5 µm) is uniquely associated with fallout processes in low energy depositional environments. This contribution analyzes organic-...
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Alejandro R. Gómez Dacal,Lucía E. Gómez Peral,Luis A. Spalletti,Alcides N. Sial,Aron Siccardi,Daniel G. Poiré
Pág. 111 - 129
The Tithonian-Valanginian time interval in the Mendoza Shelf (Neuquén Basin, Argentina) is well exposed in the Río Salado, Puesto Loncoche and Cuesta del Chihuido sedimentary sections. From those localities, more than fifty preserved oyster shells of the...
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Mariana S. Olivo, Ernesto Schwarz, Gonzalo D. Veiga
Pág. 215 - 239
La Formación Quintuco (Berriasiano-Valanginiano temprano) aflorante en el centro de la provincia de
Neuquén comprende depósitos marinos, transicionales y continentales. Estos depósitos fueron incluidos en diversos trabajos
estratigráficos regionales, rec...
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Nerina Canale,Juan José Ponce,Noelia Beatriz Carmona,Daniel Isaías Drittanti,Daniela Elizabeth Olivera,Marcelo Adrián Martínez,Constanza Naimé Bournod
Pág. 114 - 138
There are few recognized examples of fluvial-dominated deltaic systems affected by hyperpycnal discharges. The development of predictive models in those systems are essential to understand the distribution of sedimentary facies and for determining the lo...
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Maria Lidia Sanchez,Estefania Asurmendi
Pág. 329 - 348
The Candeleros Formation is represented by a succession of deposits that represent terminal fans starting to fill a foreland basin (back-arc) during the Albian. The different sub-environments of the terminal fan suggest low gradients during the onset of ...
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Luis A. Spalletti,Ernesto Schwarz,Gonzalo D. Veiga
Pág. 401 - 435
This study presents and discusses inorganic geochemical data from the basal Vaca Muerta Formation, deposited during the early Tithonian marine transgression of the Neuquén Basin. This interval is associated with high preservation of organic matter and is...
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Leandro D?Elia,Martin Muravchik,Juan R. Franzese,Andres Bilmes
Pág. 106 - 132
The Neuquen Basin constitutes one of the most conspicuous features of the Andean margin of Gondwana during Mesozoic times. The initial syn-rift infill (Late Triassic-Early Jurassic) of this ensialic extensional basin involved a profuse magmatic activity ...
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