625 research outputs found
Early-Middle Miocene subtle compressional deformation in the Ebro foreland basin (northern Spain); insights from magnetic fabrics
The results of anisotropy of magnetic susceptibility analyses of 19 sites carried out on magnetostrigraphically-dated, Lower to Middle Miocene (20.4 to 13.7 Ma) 'non-deformed' mudstones from the central part of the Ebro basin reveal the presence of a subtle tectonic overprint lasting at least until the Langhian (Middle Miocene) in the southern Pyrenean foreland. Magnetic ellipsoids show a sedimentary fabric in 42% of sites and a weak and well-defined magnetic lineation in 47% and 11% of sites. The magnetic lineation is roughly oriented around the east-west direction, compatible with a very weak deformation occurring there and related to the north-south compression linked to the convergence between Europe, Iberia and Africa during the Early-Middle Miocene. A slight variation of the magnetic parameters Km, Pj, and T exists through time, probably due to changes in the sedimentary conditions in the basin
Mechanistic studies on the photogeneration of o- and p-xylylenes from α,α'-dichloroxylenes
Two-colour two-laser techniques have unambiguously proved that photolysis of the o-/p-(chloromethyl)benzyl radical leads to the sequential two-photon generation of o-/pxylylene from α,α'-dichloro-o-/p-xylene.Perez Prieto, Julia, [email protected]
Multimodal analysis of advertising discourse during the lockdown due to COVID-19: Comparison of the communication strategies of financial services and automotive products in Spain
The goal of the following text is to analyze the changes in television advertising in the banking and automobile sectors, according to the social context. The hypothesis is that communication is significantly influenced by the situational context, causing differences between the advertising of the two sectors. A multimodal discourse analysis is used, comparing twenty commercials from the banking and automobile sectors in 2019 and 2020, the period during which the lockdown due to COVID-19 took place. Based on a qualitative and quantitative analysis tables were developed with which to analyze general data such as the value proposition or target audience of the advert, or other special data like the text (verb tenses, rhetorical figures…), the image and the sound used. The fact that context is decisive in communication is made evident, and since this is different in every sector, the communication strategy is clearly different as well. However, the points that the two sectors have in common are remarkable: these range from talking about brands and products, to speaking for and about people
Eocene-Oligocene magnetostratigraphy from the central part of the SE margin of the Ebro Basin
Previous magnetostratigraphic studies focused in the Eocene successions of the eastern Ebro Basin have provided some absolute age for the basin infill. These results were based on some biostratigraphic constraints wich have been recently challenged. Our new results from the approximately 3000 m thick Montserrat and Maians-Rubió magnetostratigraphic sections have been integrated into the both marine and continental biochronology data, providing a more independent chronology. The resulting absolute chronology of the Montserrat-Rubió composite section represents about 10 My, covering the Lutetian to Rupelian (approximately 40.7 to 30.5 Ma). This leads to the re-evaluation of the age of the La Salut Fm. (Lutetian to Bartonian) and the Montserrat conglomerates (Bartonian to Priabonian). The last marine regression in the central part of the SE margin of the Ebro Basin yields an approximate age of about 36.0 Ma (Priabonian)
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