Results 1 to 10 of about 266 (127)
Frontiers in Ecology and Evolution, 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.
Jonathan Ruhm +6 more
doaj +3 more sources
New contributions to the Ordovician biostratigraphy of the Western Precordillera, Argentina [PDF]
Estonian Journal of Earth Sciences, 2023 Upper Ordovician graptolites and conodonts are recorded from the Yerba Loca Formation in two sections, in the El Toro and Las Viudas creeks, from the El Tigre Range in the Western Precordillera of San Juan Province, Argentina. A collection of graptolites
Fernando E. Lopez +3 more
doaj +3 more sources
Review of the Cambrian Stratigraphy of the Argentine Precordillera
Geologica Acta, 2003 The Cambrian rocks of the Argentine Precordillera are analyzed and updated providing a new stratigraphic interpretation. The lithostratigraphic assemblages provide evidence that the Precordilleran Cambrian Basin was a rimmed platform.
O. Bordonaro
doaj +7 more sources
Early Gondwanan connection for the Argentine Precordillera terrane
Earth and Planetary Science Letters, 2003 Abstract The Precordillera of Argentina is widely accepted as an exotic terrane of Laurentian (North American) affinity. Newly acquired U/Pb ages on individual detrital zircons from Lower Cambrian and Upper Ordovician quartz sandstone beds in the Argentine Precordillera indicate a Gondwanan provenance not associated with any known part of Laurentia ...
Stan Finney +4 more
openaire +3 more sources
Cambrian sponge spicules and Chancelloriid sclerites from the Argentine Precordillera: A Review
Geologica Acta, 2003 Spicules of sponges and sclerites of chancelloriids have been collected from in situ Cambrian sections of the La Laja Formation (San Juan Precordillera).
M. Beresi
doaj +6 more sources
Geochemistry, Geophysics, GeosystemsThis study provides a comprehensive characterization of various hydrothermal systems in Southern Peru ranging from the faulted Precordillera's steep topography up to the volcanic High Cordillera (>4,000 m asl).
Audrey Taillefer +13 more
doaj +2 more sources
Ordovician enigmatic sclerite-type elements from western Argentina: possible oldest axial components of alcyonacean octocorals [PDF]
Acta Palaeontologica Polonica, 2021 The unusual findings of Lower and Middle Ordovician tiny sclerite-type elements in the San Juan Formation of the Argentine Precordillera are described and analysed.
Marcelo G. Carrera +3 more
doaj +1 more source
Publicación Electrónica de la Asociación Paleontológica Argentina, 2022 Esta contribución tiene el propósito de dar a conocer la presencia de las subespecies de Saetograptus argentinus para el Silúrico de la Precordillera Central de San Juan, Argentina.
Fernando Enrique Lopez
doaj +1 more source
Basin Research, Volume 35, Issue 6, Page 2140-2164, December 2023., 2023 3D visualisation of the Upper Triassic, syn‐extension, top unit 1 showing the key inversion anticlines in the western Huincul High (Neuquen Basin). Abstract The Neuquén Basin is a major Mesozoic sedimentary depocentre located in the retroarc foreland of the Argentinian Andes. The basin hosts world renowned inversion systems that have been the target of
Ivan Antonov +6 more
wiley +1 more source
Geochemistry, Geophysics, Geosystems, Volume 24, Issue 10, October 2023., 2023 Abstract Seamounts and ridges are often invoked to explain subduction‐related phenomena such as flat slab generation, but the extent of their involvement remains controversial. An analysis of seismicity in the region of the Pampean flat slab through an application of an automated catalog generation algorithm resulted in 35,924 well constrained local ...
A. Maharaj +5 more
wiley +1 more source