Un habitat de la fin du Mésolithique dans le Centre-Ouest de la France : L’Essart à Poitiers (Vienne)

The excavation of L’Essart (Poitiers) makes it possible for the first time in the west of France to understand a very particular habitat, along a river and very much marked by the firing activities. The substrate of the site assigns the shape of a dome surrounded to the east by the Clain River, to the west by a channel. Abundant vestiges allotted to the recent Neolithic lay in the lower half of a layer of brown silts. Immediately subjacent, a level of ten centimetres, located at the top of orange silts, contained burnt stones structures: 39 hearths (circular area posed flat approximately one meter of diameter) and 14 dismantled hearths. It is dated from the final Mesolithic by the extremely abundant lithic material discovered in the layer. Lithic industry is carried out in a preferential way on bajocians flints available on the slope (62%) and oxfordians flints (8%) known to approximately two kilometres. The principal characters of this industry are a frontal exploitation of core, a production of prismatic blades, many notches of Montbani type on the blades, asymmetrical trapezoids with concave truncations (of which Trapezoids of Payré), right-angled trapezoids with concave truncations, scalene triangles with flat retouches and arrows of Montclus. The analogies with Retzian (Vendée and Loire-Atlantique) are certainly numerous, but it is rather about a relationship in a vaster unit that remains to define. The non anecdotic presence of the arrows of Montclus involves the discussion on the question of the zones of contacts between Neolithic and Mesolithic of the second half of the VI^th millenium BC.     

Paléolithique supérieur et Mésolithique en Méditerranée : cadre culturel

The origin of the Upper Palaeolithic around the Mediterranean was the result of the local evolution, particularly in the Near East and in the Lower Nile basin, and of the migration from this zone to South-Eastern and Central Europe. The Initial Upper Palaeolithic in the Near East belt was the effect of local evolution from the industries based on Levallois concept to the industries which developed leptolithic blade technologies. This evolution is well registered in multi-layer sites in the Syro-Palestinian belt (Emirian/Ahmarian), which was the starting point of the diffusion of these “transitional” industries in South-Eastern and Central Europe. This diffusion could be identified with the migration of first anatomically Modern Humans. The Early Upper Palaeolithic in Europe — dated to the second half of the Interpleniglacial — was, at least partially, based on these “transitional” industries and manifested by the appearance of the Aurignacian, contrasted with local cultures such as the Uluzzian in Mediterranean Europe. During whole the Interpleniglacial Europe was separated from Northern Africa dominated by local evolution of Middle Palaeolithic (Middle Stone Age) cultures (mostly expressed by the Aterian), and by specific “transitional” industries on the southern Mediterranean coast (Early Dabbian) and in the Lower Nile basin. The Last Glacial Maximum and the corresponding sea level recession opened new possibilities of contacts between the Maghreb and the Iberian Peninsula in both directions (Aterian-Solutrean and Gravettian-Early Iberomaurusian), which are still difficult to be proved before new chronostratigraphic correlations are made. At the same time we register links between south-eastern Europe and western Anatolia; the real border between Near Eastern and European Mediterranean cultural zones was marked, in the Late Glacial, by the Taurus chain. During the Late Glacial the cultural separation between Europe and Africa was particularly marked. Only in the Aegean basin the first sea navigation facilitated contacts which become widespread as late as in the Early Holocene with neolithization trough maritime contacts.     

Contacts, blocages et filiations entre les aires culturelles mésolithiques et néolithiques en Europe atlantique

An examination of lithic industries evolution during VI millenium cal BC shows us transformations of mesolithic technical systems under neolithic pressures, with regional variations. Contrasting classical views, mesolithic groups seems to be less active on atlantic façade than similar groups of France or Spain. This technology transfers are not peripheral phenomenons but testify to intense interactions between mesolithic and neolithic communities, especially on weapons.     

Le passage vers l’Atlantique : le processus de néolithisation en Algarve (sud du Portugal)

The late beginning of the research on the neolithisation in the Algarve (southern Portugal) has been providing, as a paradox, excellent conditions for the establishment of interdisciplinary research and the test of working hypotheses. The systematic projects put forward by the University of Algarve permit us today to conclude on a preliminary basis for the formation of a Neolithic enclave at ca. 5500 cal BC, centred in the coastal territories of the region. This enclave is fully Neolithic in economic terms and it is the westernmost extension of the Mediterranean Cardial. However, some specific features of these first Neolithic groups’ artefactual items (such as pottery morphology and style and some technological aspects of chipped stone production) indicate the existence of phenomena of partial reformulation of their material cultures. According to the presently available data, this complex process seems to have occurred in similar traits also in Andalucia and coastal Morocco, that is, at the moment of the passage to the Atlantic. This individualization within the Neolithic of Cardial tradition is the equivalent to the same general cultural phenomena that have been responsible for the formation, for example, of the so-called “Franco-Iberian Cardial” or “Tirrenic Cardial” at the time of settling of the Neolithic groups in these regions.     

Application d'une méthode d'analyse du territoire à partir de la situation des marqueurs graphiques à l'intérieur de la Péninsule Ibérique : le Tage International

This paper, analyses the graphic evidences of the boundaries of Tagus between Spain and Portugal from the perspective of the model defended by our team. This model proposes the existence of the relationship between graphic markers: paintings, engravings in the open air, decorations over dolmens and menhirs, understood as a compact ideological group fixed in the organization social system of European producing people and metallurgical that occupying this landscape. This argument attempt to verify the possibilities of applying a pre-defined model in an area in which have been developed investigation models, focused to study megalithic monuments, menhirs, habitational areas, paints and engravings that shows symbolic expressions of the tradition to justify the property of rich areas in natural resources in what metallurgical have a remarkable importance.     

Remaniement des nannofossiles calcaires maastrichtiens dans les sédiments du Danien basal de Bidart (France) : arguments isotopiques (carbone et oxygène)

The sediments at the Cretaceous-Tertiary boundary record a major crisis of pelagic carbonate producers (calcareous nannofossils and planktonic foraminifera). Nevertheless, Maastrichtian-like nannofossils are found in lowermost Danian sediments. Their origin (reworked vs. survivors) is still under debate. A recently developed protocol leading to separation of the various calcareous components included in the lowermost Danian sediments allows evaluation of the nannofossil isotopic signatures across the Cretaceous-Paleocene boundary. Maastrichtian-like nannofossils found in Danian sediments record isotopic ratios (carbon and oxygen) similar to the Cretaceous ones. These results provide evidence that Maastrichtian-like nannofossils are mostly reworked at Bidart.     

Proposition méthodologique pour une étude des esthétiques du Mésolithique : une analyse sociologique-anthropologique de la fin du Tardiglaciaire et durant le Postglaciaire en Europe occidentale

Do the decorated productions cover esthetics, i.e. the whole of the symbolic systems of a culture of hunters-gatherers? How to leave this glance with the aesthetic requirements that we other Westerners, pose on all things… and to exceed the debate of the artistic expressions thought from the aesthetic point of view, like “works of art” objects and “stylistics” objects? It is out of question “to make a fetish” of the productions decorated “works of art” while placing them at the starting point with our reflexion, (Studying them from a functional, technological, typological, art for art, meaningful point of view…) but to associate another of dimensions of the aesthetic experiment, i.e., the context of the decorated productions.     

Caractérisation de la production particulaire par l’oursin Echinometra mathaei sur les récifs Indo-Pacifiques : influence des peuplements coralliens et implications sur la dynamique sédimentaire

The characteristics of the sedimentary grains produced by the sea urchin Echinometra mathaei were described from two reef sites: a fringing Acropora-dominated reef at La Reunion island (Indian Ocean) and a barrier Porites-dominated reef at Moorea island (French Polynesia). The composition of the sediment produced by Echinometra was determined from SEM observations. The size and shape of the particles were measured by using image analysis method. The grain diameters range between a few micrometres and 2 mm, with a large predominance (more than 80 %) of particles smaller than 400 μm. The grain size distribution is dependent on the nature of the grazed substratum. Echinometra individuals collected at La Reunion on branching Acropora colonies produce a higher proportion of particles smaller than 200 μm compared to those collected at Moorea on massive Porites colonies. At Moorea, more grains having a diameter comprised between 200 and 500 μm are produced. The microstructure of coral substrata affects the mean particle diameter, which is 192,17 μm for a Acropora substratum and 244,69 μm for a Porites substratum. Since the sediment derived from Acropora erosion is finer, the proportion of suspended material that is exported from the reef is greater at La Reunion than at Moorea. We estimate that, for similar erosion rates and hydrodynamic conditions, the production of sands by Echinometra mathaei is higher and the retention of this erosional sediment more effective on reefs dominated by massive Porites than on Acropora-dominated reefs. This result is in accordance with the proportions of suspension-moving grains that have been previously measured on Moorea and La Reunion reefs. This study highlighted the effect of coral communities on the production of particles related to the bioerosion and on the sedimentary budget.     

Mise en place des dépôts de pente du site moustérien de La Rouquette à Puycelci (Tarn) : étude sédimentologique et implications paléoclimatiques

La Rouquette (Puycelci, Tarn) Mousterian site sedimentological study allowed to define three large stratigraphic complexes into the Mousterian scree infilling. The granulometry, petrography, morphoscopy and clays mineralogy studies show variations that can be correlated with climatic variations, results corrobored by fauna and microfauna studies. Those sedimentary record variations are related to different sources which allow paleoclimatic interpretations and give a chronostratigraphic frame for this site.     

Diversités technologiques et convergences économiques et culturelles au Mésolithique : une lecture détaillée à travers l’industrie de Creac’h Miné Vihan (Finistère, France)

The second phase of the Mesolithic in Western France and Brittany, principally the Teviecian (5500-5000 cal. BP), is supposed to be a period of degradation of the harmonious relations existing in the past between populations occupying this territory and or external contemporaneous human groups. The distinction between goods in ultramylonites/cataclasites and flint from the occupation of Creac’h Miné Vihan reveals that this period is characterized by the development of diverse methods of production, in relation with rocks structural, physical and quantitative facilities given by rocks exploited. This new vision seems to reorient our understanding of the impact of a restriction of relations between autochthonous and or allochthonous populations, on the transmission, modification and evolution of technological capacities.     

L’étude des conditions d’habitabilité des établissements préhistoriques : à propos des amas coquilliers mésolithiques de la région cantabrique occidentale (Nord de l’Espagne)

We show the methodology we followed in order to reliably estimate a factor that, to our judgement, is fundamental for the assessment of the characteristics of a prehistoric settlement: the conditions of exposure to the sun. This methodology is applied to the study of Mesolithic shell middens in the North of Spain, with the aim to introduce a new kind of information in the debate about the meaning of shell middens. Throughout this century, different ways to understand the behaviour these remains conceal have been proposed. Our thesis with regard to it, presented in this paper, is based on the observation of a series of variables, among which we can find the exposure to the sun the settlements undergo. We therefore show in the last part of the paper, how to join the information from the proposed analysis with the other data subsequent from the study of other variables such as the environmental conditions prevailing during the period of formation of the sites; the situation of the settlements; the location of the remains in the caves; the entity of the occupations; and the energy spent on the transportation of the aquatic resources from the coast towards the places where their rests are found nowadays. In short, we propound a methodology for the study of one of the variables that falls upon the habitability of a prehistoric settlement and we point out the contribution that the incorporation of an analysis of this kind means for the research of Mesolithic shell middens in the North of Spain.     

Nouveautés sur la séquence du Pléistocène final et l’Holocène initial dans le versant méditerranéen de la péninsule Ibérique à travers l’industrie lithique

This paper explores the cultural sequence for the period 12,500–9000 BP in the Mediterranean coast of the Iberian Peninsula. According to the traditional division by Fortea, this period starts with the end of the Upper Magdalenian, followed by two facies: the Microlaminar Epipalaeolithic and the Geometric Epipalaeolithic (Filador type), (related to Sauveterrian facies). The data collected in recent years suggest a change or amendment to this previous proposal, which now would be divided into four phases: Final Upper Magdalenian, Early Epimagdalenian, Recent Epimagdalenian and Microlaminar Sauveterroid. This paper discusses each of these periods examining the evolution of the stone tools and concluding that in the Mediterranean coast of the Iberian Peninsula the Magdalenian tradition continues with little changes until the advent of the Mesolithic.     

Ostracodes et stratigraphie du néogène et du quaternaire méditerranéens

A stratigraphical chart of marine ostracoda from Lower Miocene to Recent is established. Selected species (approximatively 220) are those morphologicaly well characterized and known from different parts of the Mediterranean area. It appears that: • lower Miocene ostracodes are still poorly known; • specific diversity is high during the Tortonian and the Lower Messinian before the complete disappearance of marine Mediterranean species during the Upper Messinian évaporitic episodes; • during the early Pliocene, about half of the Upper Miocene marine species are reintroduced with the Atlantic waters; other species migrate for the first time in the Mediterranean Sea by the same way; • at the end of the Pliocene or at the beginning of the Pleistocene several species known in Mediterranean since the Middle Miocene or before, such as Cytherella sp. gr. transversa and Ruggieria tetraptera, as well some “nordic guests” such as Hemicythere villosa and Cythere lutea, appear. This work is an opportunity to confirme a Late Miocene age for the Neogene of Skyros (Aegean Sea), to assign the “Upper Pliocene” of Terquem to the Lower Pleistocene and to refute the existence of a pliocene psychrosphere.     

Hiérarchisation et métallurgie : statues armées dans la Péninsule Ibérique

A narrow relation has been hold between the beginnings of the metallurgy and social hierarchical structuring, in the sense of breaking with previous social organizations, has been discussed in this paper from the data obtained by the anthropomorphous drawings. From the ancient megaliths, the human figures were described with instruments that provide power and individuality. This fact, joined to the evidence of grave goods with prestige elements, propose the beginning of the hierarchy in the own social evolution of the production society, constituting the megalithic culture and his drawings the trustworthy expression of this hypothesis.     

Les comportements funéraires au Néolithique en France méridionale : une vue d’ensemble

The research presented in this paper is based on geographical zone chosen as context for a general discussion centred on a critical inventory of graves, burial places and funeral traditions within Neolithic communities between about 6000 and 2200 B.C. It proposes to define the characteristics and the evolution of funeral behaviours during the Neolithic times in Southern France, between about 6000 and 2200 B.C. Southern France has been considered in an extended definition, from Atlantic Ocean to the Alps, a territory constituted of 26 departments. In view of the extent of the territorial limits, the study was directly all-encompassing. It bears on 150 years of archaeological discoveries unevenly distributed on the Neolithic times. The study takes into consideration all the documentation published. The funeral traditions have been considered in the wide sense, that is tomb architecture, laying out and treatment of cadavers, study of archaeological artefacts. The study leads on to an interpretative outline of the funeral traditions whose development was closely linked to the social evolution of southern Neolithic communities. It researchs a social evolution beyond funeral behaviours, a power more and more destined to an elite who prefigures the protohistory.     

Les cétacés des gravures rupestres néolithiques de Bangu-dae (Corée du Sud) et les débuts de la chasse à la baleine dans le Pacifique nord-ouest

The Neolithic site of Bangu-dae (6000-1000 B.C.), south-east of the Korean peninsula, presents numerous rock carvings of cetaceans (n = 46, 19.9% of the figures), and especially large species. Among these two families of baleen whales (Balaenidae and Balaenopteridae) and the sperm whale can be identified. This site also presents whaling scenes suggesting that the Neolithic populations who lived along the coast of Korea were among the first to take advantage of coastal whales. All these carvings give exceptional evidence on the prehistoric beginning of whaling.     

Biostratigraphie d’après les foraminifères et paléoenvironnements des séries post-Éocène du sondage ASHTART 28, golfe de Gabès (Tunisie)

The Cenozoic sequence of Ashtart 28 well drilled in the Gulf of Gabes (Tunisia) is the subject of a biostratigraphical study. The samples recovered in cuttings from 390 m and downwards allowed to recognize, above the Late Eocene sediments, a sedimentary series, lithologically diversified, nearly 1600 m thick. Marine Pliocene deposits, generally attesting a low bathymetry, lie unconformably above the Messinian (Oued Bel Khedim formation), which shows the usual features of the Mediterranean confinement. The underlying Messinian pre-evaporitic platform series (Melqart formation), that is over 250 m thick, is typical of a perireefal environment. The sediments assigned to the Tortonian (Somâa Sands formation) are continental and occur unconformably above the approximately 500-metres-thick Middle Miocene strata (Saouaf, Mahmoud, Aïn Grab and Salammbô pars formations). The marine Lower Miocene and Oligocene sediments (Salammbô pars and Ketatna formations), that are more than 300 m thick, lie in continuity under the Middle Miocene. The infralittoral Chattian sequence has especially supplied a diversified assemblage of larger foraminifera recovered in other west-mediterranean basins. Datings were obtained based on planktonic and larger benthic foraminifera (Miogypsinidae, Nummulitidae, Lepidocyclinidae) and by correlations obtained by means of well loggings and lithostratigraphy. Benthic foraminifera, mainly listed for the Miocene and Oligocene, are studied from a systematic, stratigraphic and paleogeographic point of view. The paleoenvironments of deposits are defined for each considered stratigraphic interval. Comparisons are sketched with other drillings of the Gulf of Gabes. Thanks to the numerous data obtained by this detailed study, the Ashtart drilling can serve as a reference for the Tertiary sequence of this part of the Mediterranean domain.     

Prise en charge des cancers de la prostate : points de vue du radiothérapeute

In 2011, the prostate cancer positions itself clearly like a problem of public health. The radiotherapy has shown these twenty last years significant improvements with the advent of the three-dimensional conformation radiotherapy as a standard in the treatment of the adenocarcinoma prostate cancer, and now with the contribution of the modulation of intensity which makes it possible to consider an increment of amount on estimated target volume without toxicity added to the organs at risks. Radio-hormonotherapy association for high-risk cancers also went to current practice. The nuclear medicine through new tracers and new indications probably will allow the experts dealing with these patients to better define the indications and to better distinguish the patients who will profit authentically from a therapeutic strategy more than of another, and even to associate them…     

L’analyse des unités techno-fonctionnelles appliquée à l’étude du macro-outillage néolithique

Ground stone tools are lithic tools made on coarse blanks that are not included in the chipped or polished stone studies. During the study of a ground stone tools collection coming from the Campaniform site of Beg ar Loued (Molène island, Finistère, France), the techno-functional unit (TFU) analysis as been adapted to these objects. A TFU is a part of a tool that is technologically independent, having his own part in this tool's overall functioning. The application of this method to ground stone tools needed some adaptations to their characteristics. The aim is to obtain a high level technological analysis for these tools, succeeding to express functional hypothesis. Two concrete examples from Beg ar Loued's collection illustrate the TFU analysis method's application to ground stone tools. This method has the advantage to organize the progress of each piece's analysis. The TFU analysis helps to understand the multifunctional tools by considering each function as a full tool. This allows us to talk about function's hierarchisation and their adaptation to blanks. We also obtain some informations about blank's selection. These many and varied results make the TFU analysis essential for ground stone tool's technological and functional analysis.