Dinàmica de la Terra i de l'Oceà: Enviaments recents
Ara mostrant els elements 361-380 de 1037
Reexposure and advection of C-14-depleted organic carbon from old deposits at the upper continental slope
Outcrops of old strata at the shelf edge resulting from erosive gravity-driven flows have been globally described on continental margins. The reexposure of old strata allows for the reintroduction of aged organic carbon ...
Side scan sonar image and geologic interpretation of the Ria de Pontevedra seafloor (Galicia, NW Spain).
High-resolution side scan sonar has been used for mapping the seafloor of the Ría de Pontevedra. Four backscatter patterns have been mapped within the Ría: (1) Pattern with isolated reflections, correlated with granite and ...
LOCATE v1.0: Numerical modelling of floating marine debris dispersion in coastal regions using Parcels v2.4.2
The transport mechanisms of floating marine debris in coastal zones remain poorly understood due to complex geometries and the influence of coastal processes, posing difficulties in incorporating them into Lagrangian ...
Observaciones geomorfológicas en el sector sur del Pla d'Urgell, posible influencia de deformacione tectónica reciente en el origen de esta depresión
Proponemos en esta nota un cambio del trazado del río Corb durante el Cuaternario, lo que nos permite explicar el origen de algunas formaciones aluviales cuaternarias del sur del Pla d'Urgell desligadas de la red de drenaje ...
Tectonica extensiva d'edat jurassica a l'illa de Cabrera (Balears)
A Cabrera l'extensió juràssica causà la ruptura de la plataforma liàsica i l'aprofundiment de la conca pelàgica durant el Dogger, el Malm i el Cretaci inferior. Conseqüència d'aquesta extensió en són: La discordança de la ...
Pressuremeter test in glaciated valley sediments (Andorra, Southern Pyrenees). Part two: Fossil subglacial drainage patterns, dynamics and rheology
Any subglacial sediment subjected to drainage with load and unload hydrological cycles should present consolidation patters similar to those here described. Without the use of pressuremeter tests might be impossible to ...
The Heritage Interest of the Cretaceous Amber Outcrops in the Iberian Peninsula, and Their Management and Protection
All the amber outcrops of the Iberian Peninsula are Lower Cretaceous in age and, in the case of Spain, some of them have provided important arthropod specimens preserved as bioinclusions. These Spanish localities are rich ...
10 Myr evolution of sedimentation rates in a deep marine to non-marine foreland basin system: tectonic and sedimentary controls (Eocene, Tremp-Jaca basin, Southern Pyrenees, NE Spain)
The propagation of the deformation front in foreland systems is typically accompanied by the incorporation of parts of the basin into wedge-top piggy-back basins, this process is likely producing considerable changes to ...
Palaeoentomological study of the lacustrine oil-shales of the Lower Miocene San Chils locality (Ribesalbes-Alcora Basin, Castellón Province, Spain)
For the first time, the study of the fossil record present in laminated bituminous dolostones from the San Chils locality, Lower Miocene in age (ca. 19 Ma), located at the Ribesalbes-Alcora Basin, is addressed. The ...
Tsunamis boulders on the rocky shores of Minorca (Balearic Islands)
Large boulders have been found on marine cliffs of 24 study areas on Minorca, in the Balearic archipelago. These large imbricated boulders of up to 229 t are located on platforms that comprise the rocky coastline of Minorca, ...
Damselflies (Coenagrionidae) have been avoiding leaf veins during oviposition for at least 52 million years
Plant-insect interactions can provide extremely valuable information for reconstructing the oviposition behavior. We have studied about 1350 endophytic egg traces of coenagrionid damselflies (Odonata: Zygoptera) from the ...
Detection of millimetric deformation using a terrestrial laser scanner: experiment and application to a rockfall event
Terrestrial laser scanning (TLS) is one of the most promising surveying techniques for rockslope characterization and monitoring. Landslide and rockfall movements can be detected by means of comparison of sequential scans. ...
First records and potential palaeoecological significance of Dianella (Xanthorrhoeaceae), an extinct representative of the native flora of Rapa Nui (Easter Island).
Easter Island, a remote island in the Pacific Ocean, is currently primarily covered by grasslands, but palaeoecological studies have shown the former presence of different vegetation. Much of its original biota has been ...
Long-term entrenchment and consequences for present flood hazard in the Garona River (Val d'Aran, Central Pyrenees, Spain)
On 18 June 2013, a damaging flood of the Garona River (Val d'Aran, Central Pyrenees, Spain) caused losses exceeding EUR 100 million. Few studies have related flood events to the geologic, tectonic and geomorphologic context. ...
Seismic detection and characterization of landslides and other mass movements
Seismic methods used in the study of snow avalanches may be employed to detect and characterize landslides and other mass movements, using standard spectrogram/sonogram analysis. For snow avalanches, the spectrogram for a ...
Catálogo sistemático y estratigráfico de los Pectínidos del Neógeno del NE de España (Excepto Baleares)
Se da un catálogo sistemático y estratigráfico de los pectnidos del Negeno del NE de España.
Evolution of salt structures during extension and inversion of the Offshore Parentis Basin (Eastern Bay of Biscay)
The Late Jurassic-Cretaceous Parentis Basin (Eastern Bay of Biscay) illustrates a complex geological interplay between crustal tectonics and salt tectonics. Salt structures are mainly near the edges of the basin, where ...
Inversión cenozoica de la Cuenca mesozoica del Maestrat: evolución cinemática del cinturón de pliegues y cabalgamientos desarrollado en su margen norte (Cadena Ibérica oriental)
The Maestrat basin was one of the most subsident basins of the Iberian Rift system during the Late Jurassic- Early Cretaceous, generated by a normal fault system which divided it into sub-basins. The E-W-trending, N-verging ...
Last deglacial reorganization of the western Mediterranean thermohaline circulation: evidences from sedimentological and Nd isotopes proxies
Last glacial/interglacial transition involved significant changes in western Mediterranean (Med) thermohaline circulation that culminated with the formation of an organic rich layer (ORL) in the Alboran Sea from 14.5 to 9 ...
Fluctuaciones glaciares pleistocenas y cronología en las Montañas Pasiegas (Cordillera Cantábrica)
En este trabajo se muestra la evolución de los glaciares de las Montañas de Pas, en la Cordillera Cantábrica Oriental. Se han realizado una cartografía geomorfológica, análisis morfoestratigráfico, prospección eléctrica y ...
