Results 61 to 70 of about 34,973 (224)

Caracterización tecnomorfológica de dos conjuntos líticos del Holoceno medio en la Estepa Fueguina: La Arcillosa 2 y Río Chico 1

open access: yesRevista del Museo de Antropologia, 2014
Con el objetivo de ampliar el conocimiento de la tecnología lítica asignable al Holoceno medio, en este artículo se presenta un análisis comparativo de dos conjuntos recuperados en posición estratigráfica, ambos depositados en un paleoacantilado de la ...
Mónica Salemme   +3 more
doaj   +1 more source

Identificación de patrones geomorfológicos a través de la interpretación de las razones entre bandas TM [PDF]

open access: yes, 1993
7 páginas, 2 figuras, 18 referencias. Este trabajo se encuentra dentro del capítulo: Estratigrafía, Sedimentología y Geomorfología del Cuaternario. Desde el año 1972, AEQUA organiza Reuniones Nacionales de Cuaternario cada cuatro años.
Clemente Salas, Luis   +2 more
core  

The ephemeral microbiota: Ecological context and environmental variability drive the body surface microbiota composition of Magellanic penguins across subantarctic breeding colonies

open access: yesMolecular Ecology, Volume 33, Issue 17, September 2024.
Abstract Environmental microbes routinely colonize wildlife body surface microbiota. However, animals experience dynamic environmental shifts throughout their daily routine. Yet, the effect of ecological shifts in wildlife body surface microbiota has been poorly explored.
Manuel Ochoa‐Sánchez   +6 more
wiley   +1 more source

Ostracode-based aminostratigraphy and aminochronology of a tufa system in central Spain [PDF]

open access: yes, 2005
In the Priego area, central Spain, extensive tufa deposits are located in three small tributaries located at the head of the 1000 kmlong Tagus River. The deposits are originated after karst-origin running waters emerged from the confines of the canyons ...
Andrews   +46 more
core   +2 more sources

Updates to the carnivore fauna from the Sima de los Huesos

open access: yesThe Anatomical Record, Volume 307, Issue 7, Page 2246-2258, July 2024.
Abstract The Sima de los Huesos site in the Sierra de Atapuerca (Burgos, northern Spain) is a Middle Pleistocene locality with the most important accumulation of humans in the European record for this age. In addition to the hominin collection, the Sima has provided numerous faunal remains.
Nuria García   +3 more
wiley   +1 more source

Evolución geomorfológica de las Lagunas de Ruidera (Albacete-Ciudad Real)

open access: yesEstudios Geologicos, 1987
Las Lagunas de Ruidera pueden considerarse un sistema fluvio-Iacustre de represas travertínicas asociadas a exurgencia kársticas. Se describen los elementos geomorfológicos de estos depósitos travertínicos: edificios de barrera, terrazas travertínicas ...
J. A. González Martín   +2 more
doaj   +1 more source

How the Sima de los Huesos was won

open access: yesThe Anatomical Record, Volume 307, Issue 7, Page 2225-2245, July 2024.
Abstract Although the first discovery of a human fossil in the Sima de los Huesos took place in 1976, systematic excavations did not begin there until 1984. Since then, this site has been continuously excavated in month‐long camps. The site is dated by different radiometric techniques to between 430,000 and 300,000 years ago.
Juan‐Luis Arsuaga   +10 more
wiley   +1 more source

Neotectónica del sector centro-meridional de la cuenca de Madrid

open access: yesEstudios Geologicos, 1988
Se ha realizado una cartografía neotectónica basada fundamentalmente en el análisis y estudio de los rasgos geomorfológicos indicadores de actividad tectónica reciente tales como: Secuencias y dispositivos geométricos de las unidades geomorfológicas ...
P. Silva, J. L. Goy, C. Zazo
doaj   +1 more source

Genomic signatures of past megafrugivore‐mediated dispersal in Malagasy palms

open access: yesJournal of Ecology, Volume 112, Issue 7, Page 1583-1598, July 2024.
Our results suggest that the legacy of megafrugivores regularly achieving long dispersal distances is still reflected in the population genetics of palms that were formerly dispersed by such animals. Furthermore, low genetic differentiation was possibly maintained after the megafauna extinctions through alternative dispersal (e.g.
Laura Méndez   +7 more
wiley   +1 more source

Estudio paleontológico de las tobas cuaternarias de Ocio (Álava, Cuenca Miranda-Trebiño)

open access: yesGeogaceta
Este trabajo ilustra y describe la asociación de microfósiles presentes en los tramos limosos de las tobas cuaternarias de Ocio (valle del río Inglares, Álava). La asociación consiste en una especie de carofita (Chara cf.
Xabier Murelaga Bereicua   +7 more
doaj   +1 more source

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