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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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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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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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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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Diana Fernández,Luciana Giachetti,Sabine Stöhr,Ben Thuy,Damián Pérez,Marcos Comerio,Pablo Pazos
Pág. 421 - 432
The first articulated remains of ophiuroids for the Mesozoic of South America are described from the Lower Cretaceous of Neuquén Basin, Argentina. The taxonomic analysis allows the assignment of the material described herein to the extinct genus Ophiopet...
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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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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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Elena Previtera
Pág. 39 - 58
The Neuquén Basin in northwestern Patagonia, Argentina, holds the most important record of Cretaceous
dinosaurs in South America.The Neuquén Group (Upper Cretaceous) is the richest dinosaur-bearing unit of the basin. It
comprises the Río Limay, the Río N...
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