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Morten Smelror
Palynostratigraphy and palynofacies analyses are applied to identify transgressive-regressive sequences and changes in paleoenvironment through the Middle Jurassic?Early Cretaceous succession of the Ramså Basin on Andøya. The conglomerate, the succeeding...
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Romana Melis and Gianguido Salvi
Foraminifers and ostracods were studied in a gravity-core recovered near Cape Adare (Ross Sea, Antarctica) with the aim of identifying the climatic and oceanographic variations during the last 30 ka. The sedimentary sequence represents conditions of a co...
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Elena Previtera, Adriana C. Mancuso, Marcelo S. De la fuente, Eloy S. Sánchez
Pág. 197 - 214
The Puesto Viejo Group crops out in the San Rafael Block, southwest Mendoza, Argentina. This group
is an important unit for the knowledge theTriassic faunas. It is composed of basal Quebrada de los Fósiles Formation
(QF) overlying by the Río Seco de la Q...
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Patricia Lucía Ciccioli,Sergio A Marenssi
Pág. 407 - 441
The Toro Negro Formation (Neogene) records the sedimentation in the broken-foreland VinchinaBasin during the Andean Orogeny, in northwestern Argentina. This unit is composed of conglomerates, sandstonesand mudstones together with some beds of breccias an...
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David Carlos Fernández-Remolar, Mónica Sánchez-Román and Ricardo Amils
The mineralogical characterization of Mars by different exploration missions, provides a new image of the earliest conditions that prevailed on the planet surface. The detection of extensive deposits of phyllosillicates has been considered to be as a res...
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Miguel Ezpeleta,Ricardo A. Astini,Federico Davila
Pág. 253 - 278
In the Famatina belt, western Argentina, a -400 m thick conglomerate succession is extensively developed and has been previously considered as the uppermost section of a postglacial interval (late Pennsylvanian) of the Paganzo Group. Here we separate it ...
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Ricardo A. Astini,Larisa F. Marengo
Pág. 247 - 276
The best and most complete palynologically constrained Ordovician section across the Sierras Subandinas crops out in the southern part of the Sierra de Zapla along the Capillas River (Subandean Ranges, Jujuy Province). The dominantly marginal marine sett...
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Fernando J. Gomez,Ricardo A. Astini
Pág. 19 - 46
The La Laja Formation is a key unit regarding the hypothesis of the Argentine Precordillera as a Laurentia-derived allochtonous terrane in the south central Andes. Together with the Cerro Totora Formation it comprises the oldest unit exposed at the base ...
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Gustavo Gonzalez-Bonorino,Manuel Suarez
Pág. 115 - 126
ABSTRACT. Sedimentary paleoenvironments of the Apeleg Formation, Lower Cretaceous of the Aisen basin, Region XI, Chile. Lower Cretaceous marine and terrestrial sandstones, and subordinate shales, crop out in southern Chile, between Cerro Kalterfeld and C...
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