Dinàmica de la Terra i de l'Oceà: Enviaments recents
Ara mostrant els elements 421-440 de 1037
El margen continental sur-balear: un modelo deposicional reciente sobre un margen de tipo pasivo.
El estudio sedimentológico de testigos continuos de pistón, complementado con el análisis de perfiles de sísmica de reflexión del talud y ascenso continental sur-balear, ha permitido caracterizar tres grupos de sedimentos ...
First fossil record of the oribatid family Liacaridae (Acariformes: Gustavioidea) from the lower Albian amber-bearing site of Ariño (eastern Spain)
We describe the first beetle mite (Oribatida) found in the lower Albian (Lower Cretaceous) amber-bearing site of Ariño, located in the Teruel Province (eastern Iberian Peninsula). It represents the first fossil record of ...
Les excavacions paleontològiques en els jaciments de calcària litogràfica del Montsec (Noguera, Lleida)
Els jaciments de calcària litogràfica estan situats en el marge sud de la Serra del Montsec de Rúbies, en el terme municipal de Vilanova de Meià, concretament en la pedania de Santa Maria de Meià. Hi ha dos jaciments ...
Groundwater origin and recharge in the hyperarid Cordillera de la Costa, Atacama Desert, northern Chile.
The Cordillera de la Costa is located along the coastline of northern Chile, in the hyperarid Atacama Desert area. Chemical and isotopic analyses of several small coastal springs and groundwater reservoirs between 22.5°S ...
Fábricas magnéticas en el antepaís del orógeno Pirenaico, relación con los últimos estadios de deformación (cabalagamiento de San Felices, Sierras Exteriores Aragonesas)
Se ha analizado la fábrica magnética de los materiales sedimentarios depositados en ambientes continentales (Fms Campodarbe y Uncastillo) en el borde septentrional de la cuenca de antepaís del Ebro en dos sectores (Luesia ...
Corte compensado del Pirineo oriental: Geometría de las cuencas del antepaís y edades de emplazamiento de los mantos de corrimiento
El manto del Pedraforca se ha dividido en dos unidades: el manto superior del Pedraforca predominantemente constituido por materiales del Cretftcico inferior y el manto inferior del Pedraforca formado principalmente por ...
Vanishing Clams on an iberian beach: local consequences and global implication of accelerating loss of shells to tourism
Multi-decadal increase in shell removal by tourists, a process that may accelerate degradation of natural habitats, was quantified via two series of monthly surveys, conducted thirty years apart (1978-1981 and 2008-2010) ...
North Atlantic millennial-scale climate variability 910 to 790 ka and the role of the equatorial insolation forcing
The Mid-Pleistocene transition (MPT) was the time when quasi-periodic (not, vert, similar 100 kyr), high-amplitude glacial variability developed in the absence of any significant change in the character of orbital forcing, ...
Topo-Iberia Project: CGPS crustal velocity field in the Iberian Peninsula and Morocco
A new continuous GPS network was installed under the umbrella of a research project called 'Geociencias en Iberia: Estudios integrados de topografı´a y evolución 4D (Topo-Iberia)', to improve understanding of kinematic ...
Validating GIC modeling in the Spanish power grid by differential magnetometry
series of experiences and recommendations are presented concerning the derivation of geomagnetically induced currents (GIC) by use of the differential magnetometry method (DMM) under power lines. This indirect technique, ...
Long-term hydroclimate variability in the sub-tropical North Atlantic and anthropogenic impacts on lake ecosystems: A case study from Flores Island, the Azores
Human land use and climate change threaten ecosystems and natural resources, particularly on remote islands such as the Azores Archipelago in the North Atlantic. Since the official Portuguese settlement of the archipelago ...
Transport and accumulation of floating marine litter in the Black Sea: insights from numerical modeling
Floating marine litter (FML) is a global problem with significant risks to marine life and human health. In semi-enclosed basins like the Black Sea, slow water replenishment and strong input from European rivers create ...
The impact of online teaching on Geology degree programs during COVID-19: A case study from the University of Barcelona (Spain)
The sudden shift during the COVID-19 lockdown from face-to-face to online teaching clearly impacted degree programmes in Geology characterized by a substantial practical teaching methodology. This study analyses the ...
Thick-skinned tectonic style resulting from inversion of previous structures in the Southern Cordillera Oriental (NW Argentine Andes)
Structures mapped in the southern Cordillera Oriental of the Andes show an unexpected geometry in an east-west cross-sectional view, with a remarkable predominance of west-directed thrusts. Although some of the Andean ...
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 ...
Sediment undulations on the Llobregat prodelta: Signs of early slope instability or sedimentary bedforms?
A field of sediment undulations has been mapped by means of high resolution multibeam bathymetry and seismic reflection profiles in the Llobregat River prodelta, off the city of Barcelona, Catalonia, Spain. Similar features ...
A geological cross-section along the Basque Pyrenees and the Parentis Basin (Western Pyrenees)
A new geological cross- section along the North Iberian Margin shows a complete image of the Western Pyrenees and the Parentis Basin as well as the geometric differences and age constraints between both Pyrenean fronts. ...
The fossil crown wasp Electrostephanus petiolatus Brues in Baltic Amber (Hymenoptera, Stephanidae): designation of a neotype, revised classification,and a key to amber Stephanidae.
The fossil crown wasp Electrostephanus petiolatus Brues comb. rev.(Stephanidae, Electrostephaninae) is re-described from a single male preserved in middle Eocene Baltic Amber. The holotype was lost or destroyed around the ...
Study of Johnsons Glacier (Livingston Island, Antarctica) by means of shallow ice cores and their tephra and by analysis of 137Cs content
With the aim of monitoring the dynamics of the Livingston Island ice cap, the Departament de Geodinàmica i Geofísica of the Universitat de Barcelona began ye a r ly surveys in the austral summer of 1994-95 on Johnsons ...
Messinian paleoenvironmental evolution in the lower Guadalquivir Basin (SW Spain) based on benthic foraminifera.
Benthic foraminiferal assemblages of a drill core from the lower Guadalquivir Basin (northern Gulf of Cádiz, SW Spain) have been analyzed in order to reconstruct the paleoenvironmental evolution in the vicinity of the Betic ...
