Dinàmica de la Terra i de l'Oceà: Recent submissions
Now showing items 341-360 of 1037
Nota preliminar sobre las turbiditas eocenas de los alrededores de Ripoll (Prov. de Gerona)
En este trabajo se presentan algunos resultados sobre las características sedimentológicas de las turbiditas eocenas de Ripoll, considerándose igualmente su posición y significado dentro de la cuenca de sedimentación prepirenaica.
Aproximación Experimental a la reactivación contractiva de márgenes pasivos con sal
Cuando un margen pasivo es incorporado a un sistema orogénico, las estructuras heredadas juegan un papel clave durante la deformación contractiva. Si además el margen contiene estructuras y niveles salinos, estos actúan ...
3D modelling of grain size distribution in Quaternary deltaic deposits (Llobregat Delta, NE Spain).
The Llobregat delta constitutes a Pliocene-Quaternary sequence recording progradation. An 8 meter-thick, delta-plain succession temporarily accessible in the subaerial delta plain was sub-divided into four units (A to D), ...
Measurement report: Spatial variability of northern Iberian rainfall stable isotope values - investigating atmospheric controls on daily and monthly timescales
For the first time, this article presents a large dataset of precipitation isotopic measurements (δ18Op and δ2Hp) sampled every day or 2 d from seven sites on a west-to-east transect across northern Spain for 2010-2017. ...
Quaternary active tectonic structures in the offshore Bajo Segura basin (SE Iberian Peninsula Mediterranean Sea).
The Bajo Segura fault zone (BSFZ) is the northern terminal splay of the Eastern Betic shear zone (EBSZ), a large left-lateral strike-slip fault system of sigmoid geometry stretching more than 450 km from Alicante to Almería. ...
Evolución tectonoestratigráfica de los Catalánides
Proposem una divisió dels Catalanids en unitats que reflecteixen un comportament paleogeografic i estratigrafic diferent durant l'etapa preorogenica (Mesozoic) i un de tectonic relativament diferenciat durant l'etapa ...
Icnología de vertebrados de las facies Buntsandstein de Mallorca
Se describen, por primera vez en Mallorca, hasta cinco tipos diferentes de icnitas y pistas de vertebrados continentales dentro de las facies cuarzoareniticas y limosas rojas de la facies Buntsandstein del Triásico inferior
Dimensionality imprint of electrical anisotropy in magnetotelluric responses.
Dimensionality analysis of magnetotelluric data is a common procedure for inferring the main properties of the geoelectric structures of the subsurface such as the strike direction or the presence of superficial distorting ...
Las rocas hipoabisales hercinianas y tardi-hercinianas del sector centro-oriental del sinclinal de Llavorsí (Pirineo Central)
Los materiales silricos, devnicos que constituyen el sinclinal de Llavors (Pirineo central) estn atravesados por dos grupos principales de rocas gneas hipoabisales. El primer grupo esta formado por rocas de composicin bsica ...
Tragèdia als Apenins:La prevenció és indispensable
L'esdeveniment catastròfic esdevingut als Abruzzo, al centre d'Itàlia, on una gran allau ha destruït un hotel provocant diverses víctimes, ens ha de fer reflexionar una vegada més sobre com i on edifiquem. Falten encara ...
Hydrogeochemical, isotopic and geophysical characterization of saline lake systems in semiarid regions: The Salada de Chiprana Lake, Northeastern Spain
Most of the athalassic saline and hypersaline lakes are located in arid and semiarid regions where water availability drives the hydrological dynamics of the lake itself and the associated ecosystems. This is the case of ...
Caracteristicas diferenciales entre el fragmento de craneo de Homo sp.de Venta Micena (Orce, Granada) y los equidos
Se ha realizado un detallado estudio diferencial entre la morfología del fragmento craneal de Orce y varios équidos jóvenes, puesto que en anteriores trabajos ya se ha separado del resto de los mamiferos. El resultado ...
On the origin of the North Pacific arcs
We present a new hypothesis that relates global plate tectonics to the formation of marginal basins, island arcs, spreading ridges and arc-shaped mountain belts around the North Pacific Ocean. According to our model, the ...
Deep-sea bioluminescence blooms after dense water formation at the ocean surface
The deep ocean is the largest and least known ecosystem on Earth. It hosts numerous pelagic organisms, most of which are able to emit light. Here we present a unique data set consisting of a 2.5-year long record of light ...
Effects of coastal submarine canyons on tsunami propagation and impact
We analyse the variations produced on tsunami propagation and impact over a straight coastline because of the presence of a submarine canyon incised in the continental margin. For ease of calculation we assume that the ...
Timing and nature of alluvial fan and strath terrace formation in the Eastern Precordillera of Argentina
Sixty-eight 10Be terrestrial cosmogenic nuclide (TCN) surface exposure ages are presented to define the timing of alluvial fan and strath terrace formation in the hyper-arid San Juan region of the Argentine Precordillera. ...
Forward numerical modelling constraining environmental parameters (Aptian carbonate system, E Iberia)
The facies distribution in time and space of sedimentary successions is controlled by a complex interplay between physical, chemical and biological processes, which are nowadays difficult to construe from the geological ...
Modeling the interaction between presalt seamounts and gravitational failure in salt-bearing passive margins: The Messinian case in the northwestern Mediterranean Basin
The northwest Mediterranean Basin includes a thick Messinian salt sequence composed of three evaporitic units. From these, the intermediate unit, which is dominantly composed of halite, acted as a gravitational detachment ...
