Results 11 to 20 of about 2,479 (162)

MIDDLE-UPPER ORDOVICIAN CONODONT BIOSTRATIGRAPHY OF THE EASTERN PRECORDILLERA, SAN JUAN, ARGENTINA

open access: yesPublicación Electrónica de la Asociación Paleontológica Argentina
The La Cantera Formation is a siliciclastic unit with restricted distribution that crops out at the eastern edge of the Villicum range (Eastern Precordillera), province of San Juan, Argentina.
Susana Heredia   +5 more
doaj   +3 more sources

Precordillera Andina de Santiago: Percepciones, actitudes y preferencias en visitantes urbanos

open access: yesUrbano, 2006
El propósito del trabajo fue conocer las actitudes, percepciones y preferencias de visitantes por los paisajes precordilleranos de Santiago. Se construyó y aplicó un cuestionario a visitantes y se realizaron entrevistas en profundidad en distintos sitios
Gonzalo De La Fuente-de Val   +1 more
doaj   +2 more sources

Procesos de continentalización en el Devonico de la precordillera

open access: yesRevista del Museo de La Plata
La Formación Punta Negra, de edad devónica, está constituída por una sucesión turbidítica de 1.700 m de espesor. Recientes investigaciones llevadas a cabo en la Precordillera de San Juan (área de Bachongo) han señalado que los niveles superiores de la ...
Alfredo J. Cuerda   +3 more
doaj   +2 more sources

El Ordovícico de la Precordillera Riojana [PDF]

open access: yesRevista del Museo de La Plata, 1958
Con motivo del relevamiento geológico-económico de la Hoja 17 b Sierra Punilla, que realicé en el año 1950 por cuenta de la Dirección Nacional de Minería, tuve oportunidad de recorrer una amplia zonadonde aparecen con un desarrollo extraordinario, depósitos del Ordovícico.
Furque, Guillermo
openaire   +3 more sources

Observaciones geotectónicas en el sur de la Precordillera Sanjuanina (Borde Oriental) República Argentina

open access: yesRevista del Museo de La Plata
La Precordillera del Oeste Argentino es una de las estructuras mejor conocidas en el país desde el punto de vista geológico, incluyéndose eneste aserto y con carácter saliente precisamente a los aspectos estratigráficos, bioestratigráficos y ...
Raúl A. Scanavino
doaj   +2 more sources

Localization of Deformation in a Non‐Collisional Subduction Orogen: The Roles of Dip Geometry and Plate Strength on the Evolution of the Broken Andean Foreland, Sierras Pampeanas, Argentina

open access: yesTectonics, Volume 42, Issue 8, August 2023., 2023
Abstract The southern Central Andes (SCA, 27°–40°S) exhibit a complex deformation pattern that is influenced by multiple factors, including the present‐day dip angle of the subducting oceanic Nazca plate and the influence of inherited heterogeneities in the continental South American plate. This study employs a data‐driven geodynamic workflow to assess
Michaël Pons   +4 more
wiley   +1 more source

Stepwise Widening of the Central Andes—The Role of the Lower Crust

open access: yesGeophysical Research Letters, Volume 50, Issue 12, 28 June 2023., 2023
Abstract The outward growth of many orogens occurs through pulsed migration of the strain front. During Cenozoic shortening of the central Andes, the strain front abruptly migrated ∼400 km eastward across the Altiplano, isolating the plateau interior from major deformation.
Huilin Wang, Claire A. Currie
wiley   +1 more source

Large landslide of the hyperarid Central Western Andes triggered during a humid period of the Late Pleistocene (ca. 19°S; northern Chile)

open access: yesTerra Nova, Volume 35, Issue 3, Page 174-184, June 2023., 2023
Abstract The western flank of the Central Andes offers a unique geomorphological record of large paleolandslides that are well preserved on long time‐scales (i.e. ≥Pleistocene) due to the long‐lasting aridity of this region. However, the lack of chronological constraints on those landslides limits our understanding of the respective role of tectonics ...
Swann Zerathe   +4 more
wiley   +1 more source

Sea level fluctuations and forced regressions in the Silurian basin in the Precordillera of Western Argentina [PDF]

open access: yes, 2006
Silurian strata, as part of an Upper Ordovician to Lower Devonian siliciclastic succession, are widely distributed in the Central Precordillera of Western Argentina, but they are scarce in the Eastern Precordillera, and are not known with certainty in ...
Peralta, Silvio Heriberto
core   +1 more source

Data_Sheet_6_Two Sides of the Same Desert: Floristic Connectivity and Isolation Along the Hyperarid Coast and Precordillera in Peru and Chile.pdf

open access: yes, 2022
In this study we aim at refining our understanding of the floristic connectivity of the loma- and precordillera floras of southern Peru and northern Chile and the parameters determining vegetation cover in this region.
Federico Luebert (3260688)   +5 more
core   +1 more source

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