Results 51 to 60 of about 3,572 (168)

The Early Evolution of a Young Normal Fault in the Aysén Fjord, Chile

open access: yesTectonics, Volume 44, Issue 7, July 2025.
Abstract Seismic reflection data have been used to investigate the evolution of faults in oil and gas basins for decades and typically image deeply buried faults at low resolution, with biostratigraphic age control to date horizons at scales of 10 Myr.
Saoirse M. Coveney   +4 more
wiley   +1 more source

Distribución geográfica, historia natural y conservación del hurón menor Galictis cuja (Carnivora: Mustelidae) en la Patagonia central, Argentina Geographic distribution, natural history and conservation of the lesser grison Galictis cuja (Carnivora: Mustelidae) from Central Patagonia, Argentina

open access: yesRevista Mexicana de Biodiversidad, 2012
El hurón menor, Galictis cuja, tiene una amplia distribución en el territorio patagónico extraandino, aunque sus registros puntuales son escasos. Este trabajo se desarrolló en la provincia del Chubut, Patagonia Central, Argentina.
Marcelo Carrera   +2 more
doaj  

Phylogeographic Structure of the Fossorial Long-Clawed Mouse Chelemys macronyx (Cricetidae: Sigmodontinae) [PDF]

open access: yes, 2011
We present a phylogeographic study of the fossorial sigmodontine mouse Chelemys macronyx. Analyses were based on mitochondrial DNA sequences of specimens collected over most of distributional range of the species. Results showed that C.
Alarcón, Oriet   +3 more
core  

Fissural volcanism, polygenetic volcanic fields, and crustalthickness in the Payen Volcanic Complex on the central Andes foreland (Mendoza, Argentina) [PDF]

open access: yes, 2008
Shield volcanoes, caldera-bearing stratovolcanoes, and monogenetic cones compose the large fissural Payen Volcanic Complex, located in the Andes foreland between latitude 35\uc2\ub0S and 38\uc2\ub0S.
BISTACCHI A   +3 more
core   +1 more source

Parsimonious machine learning for the global mapping of aboveground biomass potential

open access: yesEcography, Volume 2025, Issue 7, July 2025.
Advances in computational power and methods, and the widespread availability of remote sensing data have driven the development of machine learning models for estimating global carbon storage. Current models often rely on dozens of predictor variables to estimate aboveground biomass density (AGBD), resulting in accurate but complex models that are ...
Diego Bengochea Paz   +6 more
wiley   +1 more source

DISTRIBUCIONES ESPACIALES Y CONTEXTOS ARQUEOLÓGICOS DE CAZADORES RECOLECTORES ESTEPARIOS EN ALTO RÍO CISNES: (XI REGIÓN DE AISÉN) SPATIAL DISTRIBUTIONS AND ARCHAEOLOGICAL CONTEXTS OF STEPPE HUNTER GATHERERS ON ALTO RÍO CISNES: (XI REGIÓN OF AISÉN)

open access: yesMagallania, 2006
Se presentan los resultados del análisis espacial de la información recuperada en la campaña de terreno de 2005 en el Alto río Cisnes, en la estepa extra andina de la XI Región (Chile).
OMAR REYES   +3 more
doaj  

Approaching the Miocene Climatic Optimum in Patagonia (Southern Argentina): Temperature Seasonality and a Potential Role for the Opening Drake Passage

open access: yesPaleoceanography and Paleoclimatology, Volume 40, Issue 6, June 2025.
Abstract The Miocene Epoch (23.03–5.33 Ma) is receiving increased attention because estimated pCO2 and its associated warmth is comparable to projections over the next century. Well‐constrained sea‐surface temperatures in the tropics and northern latitudes express amplified warming during the Miocene Climatic Optimum (MCO; 16.9–14.7 Ma), yet data from ...
Linda C. Ivany   +5 more
wiley   +1 more source

Writing in community: Relationship building and accountability in knowledge production

open access: yesAmerican Anthropologist, Volume 127, Issue 2, Page 319-338, June 2025.
Abstract As anthropology reckons with its past, present, and future, anthropologists increasingly seek to challenge inequities within the discipline and academia more broadly. Anthropology, regardless of subdiscipline, is a social endeavor. Yet research often remains an isolating (though not necessarily solitary) process, even within research teams and
Jordi Armani Rivera Prince   +16 more
wiley   +1 more source

A Danian subtropical lacustrine palynobiota from South America (Bororó Formation, San Jorge Basin, Patagonia - Argentina)

open access: yesGeologica Acta, 2009
New results on a lacustrine Danian palynological association in extra-andean northern Patagonia (lower member of the Cerro Bororó Formation, San Jorge Basin, Chubut province, Argentina) are presented.
L. SCAFATI, D.L. MELENDI, W. VOLKHEIMER
doaj  

Decoupling the Spread of Grasslands from the Evolution of Grazer-type Herbivores in South America [PDF]

open access: yes, 2013
The evolution of high-crowned cheek teeth (hypsodonty) in herbivorous mammals during the late Cenozoic is classically regarded as an adaptive response to the near-global spread of grass-dominated habitats.
Carlini, Alfredo A.   +4 more
core   +3 more sources

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