Results 11 to 20 of about 93,778 (189)

Large Igneous Province Record Through Time and Implications for Secular Environmental Changes and Geological Time‐Scale Boundaries

open access: yesGeophysical Monograph Series, Page 1-26., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Richard E. Ernst   +8 more
wiley  

+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

La vegetación reófila del Nordeste argentino. Las comunidades vegetales con Podostemaceae de la Provincia de Misiones

open access: yesBoletín de la Sociedad Argentina de Botánica, 2014
En la provincia de Misiones, comunidades vegetales con Podostemáceas viven en rápidos y saltos de los arroyos pertenecientes a dos cuencas (Ríos Paraná y Uruguay).
José Luis Fontana
doaj   +1 more source

Nueva localidad para Parampheres bimaculatus (Opiliones: Gonyleptidae): probable registro histórico de la especie en Argentina

open access: yesRevista de la Sociedad Entomológica Argentina, 2017
En esta nota se presenta el registro del opilión Parampheres bimaculatus, una especie de las Pampas de Brasil y Uruguay, en la localidad Salto Grande, sobre el río Uruguay.
Elián L. GUERRERO
doaj   +1 more source

First record of Eptesicus brasiliensis argentinus Thomas, 1920 (Chiroptera, Vespertilionidae) in Entre Ríos province, Argentina [PDF]

open access: yes, 2018
Here, we present the first record of Eptesicus brasiliensis argentinus Thomas, 1920 for the province of Entre Ríos, Argentina. This subspecies was originally described as a full species (Eptesicus argentinus) based on its morphological features that ...
Barquez, Ruben Marcos   +3 more
core   +1 more source

Effects of the Invasive Freshwater Mussel Limnoperna fortunei on Sediment Properties and Accumulation Rates [PDF]

open access: yes, 2018
Since its introduction into South America around 1990, the freshwater bivalve Limnoperna fortunei (the golden mussel) has spread rapidly and is now a dominant component of the benthic and periphytic fauna in many rivers, lakes, and reservoirs.
Barbosa   +79 more
core   +2 more sources

Río Uruguay. Una síntesis arqueológica

open access: yesRevista del Museo de La Plata, 2019
La cuenca del río Uruguay se extiende a través de Brasil, Argentina y Uruguay y es una de las redes fluviales fundamentales para la ocupación humana del sudeste de Sudamérica. Desde sus nacientes hasta su desembocadura y desde el Pleistoceno final hasta
Juan Carlos Castro
doaj   +1 more source

Suelos, estratos, cosas

open access: yesRevista del Museo de Antropologia, 2021
Las cosas son un lugar donde varios caminos se cruzan y se entrelazan, son un nudo compuesto por múltiples hilos que se pueden rastrear más allá del nudo en sí.
Marco Alvarez
doaj   +1 more source

Coalescent-based species delimitation in the sand lizards of the Liolaemus wiegmannii complex (Squamata: Liolaemidae) [PDF]

open access: yes, 2019
Coalescent-based algorithms coupled with the access to genome-wide data have become powerful tools forassessing questions on recent or rapid diversification, as well as delineating species boundaries in the absence of reciprocal monophyly.
Abdala   +118 more
core   +1 more source

A new mouth brooder species of Gymnogeophagus with hypertrophied lips (Cichliformes: Cichlidae)

open access: yesNeotropical Ichthyology, 2018
A new mouth breeder species of Gymnogeophagus is described from a tributary of the río Uruguay. It is distinguished from most species of the genus by the presence of hypertrophied lips, and from G. labiatus and G. pseudolabiatus by the color pattern. The
Andréia Turcati   +2 more
doaj   +1 more source

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