0000000000872770
AUTHOR
Benoît Forel
Morphometry of Middle Bronze Age palstaves by discrete cosine transform.
9 pages; International audience; The Discrete Cosine Transform (DCT) is a Fourier-related transform widely used in signal processing and well suited to the analysis of open outlines. This method was applied here to evaluate the discrimination power of the inner lateral rib for two palstave populations dating from the Middle Bronze Age, excavated in northwest France. A corpus of almost 400 palstaves (bronze axes) of the Breton and Norman types was processed, and compared to specimens found at Sermizelles in Burgundy. The procedure is robust and produces a discrimination in good agreement with the traditional typology. Besides the definition of a ‘standard' shape for each population, the morp…
Paléométallurgie dans le Morvan : l'apport des analyses polliniques et géochimiques
National audience
Les Éduens producteurs et pollueurs
National audience
Paléométallurgie dans le Morvan : l’apport des analyses polliniques et géochimiques
Palaeometallurgical activities in the Morvan: the contribution of pollen and geochemical analyses Palaeoenvironmental research was carried out on three peat cores collected in the Morvan mid-level mountain (burgundy, France), documenting early palaeometallurgical activities from the 2nd millennium bc. Pollen and geochemical analyses show contemporaneous clearings of forests in close connection with metallic contaminations. the comparison between each of the three sites shows that this kind of study in such an environment documents a local impact of paleometallurgy. studying many sequences allows the reconstruction of the regional history of the Morvan Mountain. thus, the Morvan could have b…
Historical mining and smelting in the Vosges Mountains (France) recorded in two ombrotrophic peat bogs
Two peat sequences were sampled in the vicinity of the main mining districts of the Vosges Mountains: Sainte-Marie-aux-Mines and Plancher-les-Mines. Lead isotopic compositions and excess lead fluxes were calculated for each of these radiocarbon-dated sequences. Geochemical records are in very good agreement with the mining history of the area, well known over the last millennium. Except for an anomaly corresponding to the Middle Bronze Age which has not yet been resolved, there is no clear geochemical evidence of local metal production in the Vosges before the 10th century as excess lead deposition archived between 500 BC and 500 AD is attributed to long-range transport of polluted particul…
Productions en série vers 1500 avant notre ère. Des règles de fabrication au Bronze moyen entre la Manche et les Alpes à la lumière d’une étude morphométrique.
Some European Bronze Age objects were produced by what has been described as serial metalworking. One particularexample is the Middle Bronze Age palstave, massively produced and used in Western Europe during the mid-second millennium BC.These artefacts were often voluntarily buried together in hoards, meaning they were removed from the production network, thus avoidingany recycling. They are found intact, either as rough castings or ready for use. These homogeneous objects are grouped in sets of severalitems, or in tens, or even in hundreds. Such discoveries have immediately led to numerous questions as to the possible interpretation ofthis behaviour. It is clear that prehistoric craftsmen …
Geochemical records of limestone façades exposed to urban atmospheric contamination as monitoring tools?
International audience; Magnetic susceptibility, surface rock soiling, elemental composition and lead isotope ratios were measured in surface stone samples collected at different heights of a late 19th century building in Dijon, France. We targeted four limestone facades that differ in orientation and proximity to car traffic. It seems that zinc, copper, sulphur and cadmium are present as diffuse pollutants in urban atmosphere, at least at the scale of the building studied. In contrast, lead and arsenic exhibit point sources: automotive traffic and past coal-burning fly-ash emissions; both coherent with lead isotopic composition measurements. Parameter variations primarily result from expos…
La lecture des archives naturelles : une histoire de la métallurgie autour de Bibracte
National audience; La confirmation archéologique de l’importante activité métallurgique dans la ville celtique, située au cœur d’une région riche en minerais, a conduit les archéologues à s’interroger sur le rôle de l’exploitation métallurgique dans l’installation et laprospérité du site de Bibracte, à la fin de l’âge du Fer.
Prospections autour de Bibracte. Paléoenvironnement du Mont-Beuvray
Rapport annuel d'activité 2006 BIBRACTE Centre archéologique européen Rapport annuel d'activité 2006 Société anonyme d'économie mixte nationale