Results 201 to 210 of about 5,510 (244)

Multiproxy provenance analyses in the Devonian Villavicencio Formation of the Mendoza Precordillera, Argentina: correlation and geotectonic implications for the SW Gondwana margin

Journal of Sedimentary Research, 2023
This work focuses on the sedimentary provenance of the Villavicencio Formation of the Mendoza Precordillera and integrates the information obtained with previous work on other coeval units of the Precordillera Central of San Juan province (Gualilán ...
Federico D. Wenger, Jonatan A. Arnol, N. Uriz, C. Cingolani, P. Abre, M. Basei   +5 more
semanticscholar   +1 more source

Trilobites from the Cedaria prolifica Zone (Cambrian, upper Guzhangian) of the Precordillera of Mendoza, western Argentina

Journal of Paleontology, 2023
. Trilobites from the upper Guzhangian of the southern Argentine Precordillera, preliminarily described by Carlos Rusconi in the 1950s, are revised herein.
M. F. Tortello
semanticscholar   +1 more source

Middle Ordovician (Whiterockian) gastropods from central Sonora, Mexico: affinities with Laurentia and the Precordillera

Journal of Paleontology, 2022
. The Lower–Middle Ordovician (Ibexian, Whiterockian) sedimentary rocks exposed at Rancho Las Norias includes the informally named Las Norias formation, which consists of an intercalation of carbonate and clastic sediments with abundant marine fauna ...
F. J. Cuen-Romero, David M. Rohr, Héctor Arturo Noriega-Ruiz, R. Monreal, R. Blodgett, M. Beresi, B. Buitrón-Sánchez   +6 more
semanticscholar   +1 more source

Middle Cambrian chancelloriids from the Argentine Precordillera

Palaeoworld, 2022
Abstract We report, for the first time, and systematically describe chancelloriid from the region, including Chancelloria bella, Allonnia cf. tintinopsis, Al. cf. erromenosa, Al. tripodophora, Archiasterella cf. coriacea, Ar. cf. hirundo, Ar. cf. tetraspina, and Ar. cf.
Matilde Sylvia Beresi, Osvaldo Luis Bordonaro   +1 more
openaire   +1 more source

Paleomagnetic confirmation of the Laurentian origin of the Argentine Precordillera

Earth and Planetary Science Letters, 1998
Abstract Several recent tectonic models have portrayed the Argentine Precordillera has been recently portrayed as an Early Paleozoic Laurentian derived exotic terrane now found in southwestern South America. These models have primarily been based on strong biogeographic and stratigraphic evidence, however, no paleomagnetic data have previously been ...
A.E Rapalini, R.A Astini
exaly   +3 more sources

Processes explaining the origin and evolution of groundwater composition in the Andean Precordillera and Altiplano of the Tarapacá Region of northern Chile.

Science of the Total Environment, 2021
In the arid area of northern Chile, groundwater resources in the Andean formations are essential for native populations, ecological services, mining, and other human activities.
J. Urrutia, J. Guimerà, E. Custodio, C. Herrera, J. Jódar, O. Acosta, Isabel Ansón   +6 more
semanticscholar   +1 more source

New insight on upper Silurian-lowermost Devonian conodont biostratigraphy of the Argentine Precordillera and its palaeogeographic implications for the SW Gondwana margin

Historical Biology
The Cerro del Fuerte section, located in the Central Precordillera of San Juan Province, is considered a reference section to the study of Silurian-Devonian conodont biostratigraphy from Argentina and South America.
María José Gómez, A. Mestre, S. Heredia   +2 more
semanticscholar   +1 more source

Biostratigraphic significance of Darriwilian conodonts from Sierra de La Trampa (Central Precordillera, San Juan, Argentina) [PDF]

Geosciences Journal, 2013
The Eoplacognathus pseudoplanus Zone is defined by a conodont fauna composed by E. pseudoplanus (Viira) and Dzikodus tablepointensis (Stouge) among others in the Central Precordillera, Sierra de La Trampra region.
Ana Mestre, Susana Heredia
exaly   +2 more sources

Ordovician cheirurid trilobites from the Argentine Precordillera

Journal of Paleontology, 1999
New cheirurid trilobite species from the Las Aguaditas Formation in San Juan Province include the LlanvirnMacrogrammus rafi, and the Early CaradocCeraurinella zhoui, Nieszkowskia jakei, andN. yongyii.Precordilleran species, such as the LlanvirnMacrogrammus penginew species from the Gualcamayo Formation, reinforce sinoparapilekiinid affinities for the ...
Gregory D. Edgecombe, Brian D. E. Chatterton, Norberto E. Vaccari, Beatriz G. Waisfeld   +3 more
openaire   +1 more source

Surface uplift and erosion of the southernmost Argentine Precordillera

Geomorphology, 2012
article i nfo Article history: The timing of uplift of the Precordillera is important for understanding the linkages, if any, between slab dynam- ics, shortening and topography. The study region (between 32° and 33° S latitude)liesat the southern end of the flat slab, where the subducting Nazca plate is nearly horizontal.
Alina A. Walcek, Gregory D. Hoke
openaire   +1 more source