Buscar
Mostrando ítems 11-20 de 579
Upper Oligocene-Miocene clinoforms of the foreland Austral Basin of Tierra del Fuego, Argentina: Stratigraphy, depositional sequences and architecture of the foredeep deposits
(Pergamon-Elsevier Science Ltd, 2008-07)
The Upper Oligocene-Miocene deposits of the foreland Austral Basin of Tierra del Fuego represent the youngest foredeep fill, developed in front of the adjacent fold and thrust belt. They consist of superbly exposed, ...
Ammonoids (Crioceratitidae, Hauterivian) from the Austral Basin, Chile.Amonoideos (Crioceratitinae, Hauteriviano) de la cuenca Austral, Chile
(Asociación Paleontológica Argentina, 2007-06)
La baja diversidad de las faunas de amonoideos de la cuenca Austral ha sido tradicionalmente asociada a su alto grado de endemismo. Sin embargo, aquí se describe una fauna de amonoideos de la Familia Ancyloceratidae, ...
Dinoflagellate cyst zonation for the middle to upper Eocene in the Austral Basin, southwestern Atlantic Ocean: Implications for regional and global correlation
(Cambridge University Press, 2017-09)
The well-exposed marine Eocene units from southwestern Patagonia, Argentina, contain useful information for reconstructing regional climate and oceanographic patterns in an area adjacent to the Drake Passage. The aim of ...
Folding, thrusting and development of push-up structures during the Miocene tectonic inversion of the Austral Basin, Southern Patagonian Andes (50°S)
(Elsevier Science, 2017-03)
Rift and post-rift sections of the Austral Basin in the Southern Patagonian fold and thrust belt were examined in outcrop and in 2D seismic reflection sections to evaluate geometric and kinematic aspects of the extension ...
Fossil forests in the Austral Basin (Argentina) marking a Cenomanian heterogeneous forced regressive surface
(Wiley Blackwell Publishing, Inc, 2016-05)
The mid-Cretaceous greenhouse period in the southern Patagonia Argentina (Austral Basin) is represented by the Mata Amarilla Formation. It is composed of three informal sections which were deposited in littoral and continental ...
A multidisciplinary study of the Lower Cretaceous marine to continental transition in the northern Austral-Magallanes basin and its geodynamic significance
(Pergamon-Elsevier Science Ltd, 2018-10)
Sedimentologic studies together with preliminary anisotropy of magnetic susceptibility (AMS) analysis were carried out in a very particular and intriguing Lower Cretaceous depocenter in the northern Austral-Magallanes ...
Distinguishing similar volcanic source areas from an integrated provenance analysis: Implications for foreland Andean basins
(Society for Sedimentary Geology, 2013-03-24)
The Mata Amarilla Formation marks the onset of the foreland stage of the Austral basin, which is composed of mostly nonmarine and littoral siliciclastic sediments, thus providing an opportunity to study the detrital record ...
Environmental factors affecting the development of the Zoophycos ichnofacies in the Lower Cretaceous Río Mayer Formation (Austral Basin, Patagonia)
(Elsevier Science, 2015-12)
The Río Mayer Formation (Berriasian-Albian) is part of the basal infill of the Austral Basin, southwestern Gondwana. In the Los Glaciares National Park (Santa Cruz Province) seven sections were sedimentologically studied ...