Una prueba de la técnica multi-espécimen para determinar paleointensidad utilizando material arqueomagnetico: resultados preliminares con arcillas quemadas Tunecinas

The multispecimen palaeointensity technique of Dekkers & Böhnel (2006) has been tested on archaeomagnetic material from five kilns from Tunisia. In a previous study all five kilns yielded good quality archaeointensities based on Thellier-type double heating experiments. Results obtained using the multispecimen technique compared well with the previously studied Thellier-type results, with a slight tendency towards lower values. Markedly lower values were observed in two kilns, results that were improved by increasing the proportion of the natural remanence remagnetised in the partial thermoremanence acquisition. One of the kilns showed a multicomponent remanence (due to partial heating) and gave relatively poor results.

Strontium isotopes and sedimentology of a marine Triassic succession (upper Ladinian) of the westernmost Tethys, Spain

Chemical Stratigraphy, or the study of the variation of chemical elements within sedimentary sequences, has gradually become an experienced tool in the research and correlation of global geologic events. In this paper 87Sr/ 86Sr ratios of the Triassic marine carbonates (Muschelkalk facies) of southeast Iberian Ranges, Iberian Peninsula, are presented and the representative Sr-isotopic curve constructed for the upper Ladinian interval. The studied stratigraphic succession is 102 meters thick, continuous, and well preserved. Previous paleontological data from macro and micro, ammonites, bivalves, foraminifera, conodonts and palynological assemblages, suggest a Fassanian-Longobardian age (Late Ladinian). Although diagenetic minerals are present in small amounts, the elemental data content of bulk carbonate samples, especially Sr contents, show a major variation that probably reflects palaeoenvironmental changes. The 87Sr/86Sr ratios curve shows a rise from 0.707649 near the base of the section to 0.707741 and then declines rapidly to 0.707624, with a final values rise up to 0.70787 in the upper part. The data up to meter 80 in the studied succession is broadly concurrent with 87Sr/86Sr ratios of sequences of similar age and complements these data. Moreover, the sequence stratigraphic framework and its key surfaces, which are difficult to be recognised just based in the facies analysis, are characterised by combining variations of the Ca, Mg, Mn, Sr and CaCO3 contents

La representación de las mujeres en el nuevo Museo Arqueológico Nacional: comenzando por la Prehistoria

En la misma línea de trabajos anteriores, nos planteamos la necesidad de que en los museos arqueológicos se proceda con sumo cuidado a seleccionar el género de las personas que se representan en las escenas sociales, equilibrando tanto su número como sus actitudes, los trabajos que desempeñan, sus roles y su protagonismo. Analizamos así la representación de las mujeres en las escenas, considerando como tal cualquier reproducción en la que aparezcan dos o más personas en interacción. El trabajo realizado en la nueva exposición del MAN, que se refiere tan sólo a las salas de Prehistoria y Protohistoria, nos demuestra la existencia de un 25,1% de mujeres en estas escenas, incluyendo en muchos casos protagonismo, participación en trabajos de construcción o minería y ocupación de primeros planos. Esto lo sitúa en la banda más alta de entre los museos hasta ahora estudiados. El nuevo Museo Arqueológico Nacional ha dedicado seis años a reorganizarse y vestirse con nuevos ropajes, y ahora se nos presenta como un museo renovado pero al tiempo conservado en su esencia. Esa renovación ha incluido, en gran medida, un cuidado detallista en la representación de las mujeres en el pasado.

Narratives Around Iberian Culture at Valencia Museums and Archaeological Sites: From Official Discourses to Social Perceptions

Museums and archaeological sites are considered the most authoritative places for talking about the past and the heritage from a scientific perspective. In fact, visitors assume their discourses as reliable and indisputable. In spite of that, professionals of archaeology must critically analyse the production of narratives at heritage sites, since they often reflect social, political and identity issues related to the present-day realities. The aim of this paper is to study official and popular discourses about the Iberian culture (Iron Age) collected in museums and archaeological sites from Valencia region.