Dinàmica de la Terra i de l'Oceà: Enviaments recents
Ara mostrant els elements 21-40 de 1037
Paleogene kinematics of the central Catalan Coastal Ranges: temporal constraints from magneto-chronology and provenance analysis in synorogenic deposits in the SE margin of the Ebro Basin (NE Spain)
The precise determination of the tectonic deformation timing such as thrust emplacement has always been a challenge for understanding the evolution of fold-and-thrust belts. In the Catalan Coastal Ranges, this issue has ...
Caracterización geológica de la región de enlace entre la Cuenca de Bransfield y la Dorsal Sur de Scotia (Antártida)
La Dorsal Sur de Scotia (DSS) constituye une frontera de placas transformante con sentido senestral, que limita las placas de Scotia, al norte, y Antártica, al sur. Durante la campaña de geología y geofísica marinas 'Scotia ...
Magnetostratigraphy of the Miocene continental deposits of the Montes de Castejón (central Ebro basin, Spain): geochronological and paleoenvironmental implications
A detailed magnetostratigraphic study has been carried out in the early to middle Miocene distal alluvial and lacustrine sediments of the Montes de Castejón (central Ebro Basin). The study was based on the analysis of 196 ...
Rockfall travel distance analysis by using empirical models (Solà d'Andorra la Vella, Central Pyrenees)
The prediction of rockfall travel distance below a rock cliff is an indispensable activity in rockfall susceptibility, hazard and risk assessment. Although the size of the detached rock mass may differ considerably at each ...
Deglacial and Holocene changes in Mediterranean Thermohaline Circulation: A joint perspective from Eastern and Western basins
The dominant arid climate conditions over the Mediterranean (Med) control water properties and the formation processes of intermediate and deep water masses. Deep convection cells occur in both the E- and W-Med basins ...
Barremian charophytes from the Maestrat Basin
A lower and upper Barremian 690 metre-thick succession composed of freshwater and brackish limestones, marls and clays was measured and sampled in the Maestrat Basin, Eastern Iberian Chain (Castelló, Spain). Thirty-three ...
Three-dimensional characterisation of sedimentary heterogeneity and its impact on subsurface flow behaviour through the braided-to-meandering fluvial deposits of the Castissent Formation (late Ypresian, Tremp-Graus Basin, Spain)
Fluvial deposits of the Castissent Formation (late Ypresian) form part of the Eocene infill of the Tremp-Graus piggyback basin. The Castissent Formation has been subdivided into three complexes (A, B, and C). This project ...
Ticks parasitised feathered dinosaurs as revealed by Cretaceous amber assemblages
Ticks are currently among the most prevalent blood-feeding ectoparasites, but their feeding habits and hosts in deep time have long remained speculative. Here, we report direct and indirect evidence in 99 million-year-old ...
Salt Diapirs and Minibasins along a Transect across the Basque-Cantabrian Pyrenees: Implications for Cover-Basement Interaction during Rifting and Inversion.
The Basque‐Cantabrian Pyrenees experienced Early Cretaceous rifting and latest Cretaceous toCenozoic inversion, with the presence of prerift Upper Triassic Keuper salt influencing how deformation wasaccommodated. Considerable ...
Relation of surface and underground waters in Chungará and Cotacotani lake districts, northern Chile: an isotopic study.
Lake Chungará and Cotacotani lake districts are surface water bodies located to the northwest of Lauca Basin in the northern Chilean Altiplano. Surface and underground waters show low to moderate saline content and an ...
Short and long-term effects of GPS measured crustal deformation rates along the South-Central Andes
In this study we present the contemporary crustal deformation field along the central and southern Andes (17-42\deg S) estimated from four Global Positioning System (GPS) campaigns conducted in 1994-97. We find that the ...
Significación de los briozoos en los sedimentos superficiales de la plataforma continental del Cabo de Gata (Almería, España)
Los briozoos son parte importante de los constituyentes esqueléticos en los sedimentos superficiales de la plataforma continental del Cabo de Gata. El estudio especifico de los briozoos en 12 muestras analizadas, permite ...
Holocene neoglacial events in the Bransfield Strait (Antarctica). Paleogeographic and paleoclimatic significance
The morphological characterisation of the western submarine island flanks of El Hierro and La Palma differentiates four type-zones that may give new insights into the evolution of oceanic island slopes. The different ...
Active fault control in the distribution of Elevated Low Relief Topography in the Central-Western Pyrenees
The activity of normal faults in the Central-Western Pyrenees is mainly detected by the disruption of paleic landforms surviving to Plio-Quaternary incision: the remnants of a Low-Relief Topography (LRT) that probably ...
Formación e inversión de cuencas sinclinales con sal pre-cinemática. Resultados experimentales aplicados a la Cuenca de las Columbrets (Mediterráneo Occidental)
La extensión Jurásico - Cretácico Inferior que tuvo lugar en Europa y en el Atlántico Norte dio lugar a la formación de varios sistemas de rift. Asociados a estos y a la presencia de evaporitas en la parte basal de su ...
Origin of oblique structures controlled by pre-tectonic thickness variations in frictional and salt-bearing fold-and-thrust belts: Insights from analogue modelling
This work includes, first, a synthesis of experimental analogue modelling programs assessing the influence of along-strike thickness variations in the development of oblique structures in fold-and-thrust belts. As a second ...
Geodetic evidence for continuing tectonic activity of the Carboneras fault (SE Spain)
The Carboneras fault zone (CFZ) is a prominent onshore offshore strike slip fault that forms part of the Eastern Betic Shear Zone (EBSZ), located in SE Spain. In this work, we show for the first time, the continuing tectonic ...
Interpolation algorithm ranking using cross-validation and the role of smoothing effect. A coal zone example
For a property measured at several locations, interpolation algorithms provide a unique and smooth function yielding a locally realistic estimation at any point within the sampled region. Previous studies searching for ...
Sobre las formaciones Àger i Bagà, del Eoceno del Cadí (Prepirineo oriental) y de unos pretendidos olistolitos del mismo,
Se define, en el Eoceno del Prepirineo oriental, entre los ríos Segre y Freser, la Formación Baga y dos miembros de la Formación Ager: calizas con Alveolinas y margas del Clot del Moro. Además, se discute el origen y ...
Estructura y evolución tectónica del sector oriental del margen continental cantábrico: resultados de los perfiles de sísmica multicanal MARCONI
El Golfo de Vizcaya se formó durante el Cretácico como consecuencia de la apertura del Océano Atlántico. La convergencia entre las placas Euroasiática e Ibérica durante el Cenozoico dio lugar al levantamiento de la cordillera ...
