Results 11 to 20 of about 6,291 (64)

Blowin' in the Wind: Mapping the Dispersion of Metal(loid)s From Atacama Mining. [PDF]

open access: yesGeohealth
Abstract The Atacama Desert’s naturally elevated metal(loid)s pose a unique challenge for assessing the environmental impact of mining, particularly for indigenous communities residing in these areas. This study investigates how copper mining influences the dispersion of these elements in the wind‐transportable fraction (<75 μm) of surface sediments ...
Zanetta-Colombo NC   +9 more
europepmc   +2 more sources

Anatomy of the maxillary canal of Riograndia guaibensis (Cynodontia, Probainognathia)-A prozostrodont from the Late Triassic of southern Brazil. [PDF]

open access: yesAnat Rec (Hoboken)
Abstract Investigating the evolutionary trajectory of synapsid sensory and cephalic systems is pivotal for understanding the emergence and diversification of mammals. Recent studies using CT‐scanning to analyze the rostral foramina and maxillary canals morphology in fossilized specimens of probainognathian cynodonts have contributed to clarifying the ...
Fonseca PHM   +7 more
europepmc   +2 more sources

Evolución geológica en la cuenca baja del río Colorado durante el cenozoico, Patagonia Norte, Argentina [PDF]

open access: yes, 2019
Climatic changes and eustatic sea levels have been assumed to be the most important controllers of the Colorado River alluvial fan in northern Patagonia.
Perillo, Gerardo Miguel E.   +2 more
core   +2 more sources

Phytogenic mounds (nebkhas): effect of Tricomaria usillo on sand entrapment in central-west of Argentina [PDF]

open access: yes, 2016
Nebkhas, developed by the trapping of sand within the body of a plant, were studied in the Médanos Grandes system, arid central Argentina, during the springs of 2009-2010.In this system, formed by megadunes and overlapping dunes, nebkhas dynamism was ...
Martinez Carretero, Eduardo Enrique   +1 more
core   +1 more source

Subaqueous landslides at the distal basin of Lago Nahuel Huapi (Argentina): Towards a tsunami hazard evaluation in Northern Patagonian lakes [PDF]

open access: yes, 2018
The May 22nd, 1960 Valdivia earthquake, Chile (Mw 9.5) triggered a series of subaqueous mass-wasting processes (debris flows and slides) in Lago Nahuel Huapi (Argentina), generating a tsunami-like wave that hit the coasts of San Carlos de Bariloche ...
Beigt, Debora   +3 more
core   +1 more source

Estratigrafía de Sr y evolución sedimentaria de los depósitos marinos del Mioceno temprano en el antepaís del norte de la Cuenca Austral (o Magallanes), Argentina [PDF]

open access: yes, 2015
Early Miocene shallow marine deposits in the region of Lago Posadas-Meseta Belgrano (Argentina) represent part of the “Patagoniense” transgression, an Atlantic marine incursion that flooded large part of Patagonia, including the Austral (foreland) Basin (
Alonso Muruaga, Pablo Joaquin   +3 more
core   +1 more source

Sedimentología y vertebrados fósiles de la Formación Santa Cruz (Mioceno temprano) en Lago Posadas, suroeste de Patagonia, Argentina [PDF]

open access: yes, 2019
Lago Posadas se ubica al pie de los Andes Patagónicos Australes, en el suroeste de Argentina, donde la Formación Santa Cruz (FSC) del Mioceno temprano muestra afloramientos potentes y lateralmente continuos.
Aramendía, Inés   +3 more
core   +2 more sources

Sedimentología e Icnología de deltas fluvio-dominados afectados por descargas hiperpícnicas de la Formación Lajas (Jurásico Medio), Cuenca Neuquina, Argentina [PDF]

open access: yes, 2015
En las áreas de Portada Covunco y Sierra de la Vaca Muerta, la Formación Lajas representa una sucesión deltaica fluvio-dominada integrada por depósitos de prodelta y frente deltaico, afectados por descargas hiperpícnicas y reelaborados por acción de ...
Bournod, Constanza Naimé   +6 more
core   +3 more sources

The Lomagundi-Jatuli carbon isotopic event recorded in the marble of the Tandilia System basement, Río de la Plata Craton, Argentina [PDF]

open access: yes, 2019
The “Lomagundi-Jatuli event” corresponds to the most important δ13C positive anomaly (≥5‰) globally reported in Palaeoproterozoic marine carbonates (between ∼2.30 and 2.06 Ga).
Ballivian Justiniano, Carlos Alberto   +6 more
core   +1 more source

The Cambrian-Ordovician siliciclastic platform of the Balcarce Formation (Tandilia System, Argentina) : Facies, trace fossils, palaeoenvironments and sequence stratigraphy [PDF]

open access: yes, 2003
The Lower Palaeozoic sedimentary cover of the Tandilia (Balcarce Formation) is made up of thick quartz arenite beds together with kaolinitic claystones and thin fine-grained conglomerates.
Poiré, D. G.   +3 more
core   +2 more sources

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