Le Morvan et les Cévennes sont des massifs protégés pour leur paysage et leur biodiversité exceptionnels. Cependant dès la Protohistoire, ces régions réputées pour la qualité de leur environnement ont été le lieu d’activités minières et métallurgiques. Les effets de telles activités peuvent être rémanents sur les écosystèmes, il est donc important dans un premier temps de les localiser, puis de quantifier leur impact sur la faune et la flore. Le présent travail propose une démarche pluridisciplinaire alliant archéologie, géochimie, écologie et écotoxicologie. L’application de méthodes statistiques empruntées à la prospection minière a permis de dresser des cartes de potentiel minier, supposées guider l’archéologue dans ses recherches de terrain. Des cartes de distribution spatiale des éléments traces métalliques ont été construites sur six sites (trois dans chaque parc). La biodisponibilité des éléments traces métalliques a été estimée sur des mulots, des truites et des bryophytes. Bien que la plupart de ces éléments semblent appartenir à la fraction non-extractible des sols, la part biodisponible restante peut être détectée dans des bioindicateurs. Une relation négative entre les indices de condition et la concentration en plomb dans les animaux, et dans certains cas une plus grande instabilité de développement a été trouvée, suggérant la présence d’effets délétères sur les organismes. L’impact des anciens sites miniers et métallurgiques est donc toujours décelable dans les écosystèmes actuels. Ces sites doivent être surveillés, notamment au sein des zones protégées supposées à tort comme éloignées de toutes contaminations anthropiques. / The Morvan and the Cevennes Massifs are nowadays protected for their outstanding landscape and biodiversity. However since Prehistory, these regions experienced mining and smelting activities. Because of remnant properties, locating these ancient sites is capital and then impact on fauna and flora must be estimated. This present work is based in on a pluridisciplinary approach combining archeology, geochemistry, ecology and ecotoxicology. Statistical methods, from modern prospection technique, have been applied in order to delineate geochemical anomalies, potentially due to mining exploitation and thus facilitate the archeological prospection. Spatial distribution maps of trace metals were built on six sites (three in each park). Biodisponibility was assessed thanks to the analyses of wood mice, trout and bryophytes. Even if it seems that most of these elements belong to the non-extractible fraction of soil, the remaining bioavailable trace metals can be detected in the bioindicators. A negative relationship between Pb concentrations in animals and their body condition indices was found, and in some cases developmental instability was higher, suggesting deleterious effect on current wildlife. As a consequence, the impact of past mining and smelting works is still traceable in ecosystems. For this reason, these sites should be monitored, particularly in protected areas thought to be relatively free of anthropogenic contamination.

Trajan conquered Dacia in 106 CE and encouraged one of the largest colonization efforts in the history of the Roman Empire. The new province was rich in natural resources. Immigrants from Dalmatia, Moesia, Noricum, Pannonia, Greece, Syria, Bithynia, Italy, indigenous Dacians, and soldiers from Legio XIII Gemina participated in the extraction of gold from the Apuseni Mountains. The inhabitants of mining settlements around Alburnus Maior and the administrative center Ampelum coexisted under Roman governance but continued to mark their identities in multicultural communities. At Alburnus Maior the presence of wage laborers with access to outside materials and ideas created the opportunity for miners to communicate identity through mediums that have survived. A series of wax tablet legal contracts, altars, and funerary monuments can be combined with recent archaeological data from settlements, burials, and the mines themselves to formulate the broad view necessary to examine the intricacies of group and self-expression. Through this evidence, Alburnus Maior offers a case study for how mobility and colonization in the ancient world could impact identity. Due to the pressures of coping within a multicultural community, miners formed settlements that were central to their daily lives and facilitated the embodiment of state, community, and personal identities. Identity changes over time and can simultaneously communicate several ideas that are hard to categorize. This study approaches this challenge by looking from macro to micro contexts that influenced several expressions of identity. Chapter 2 begins with a historical background that explores the expansion of the Roman Empire and considers how different experiences of conquest influenced the colonists who immigrated to Dacia. The circumstances that led to the massive colonization of Dacia are also considered. Chapter 3 describes how the mines at Alburnus Maior were exploited, who was present, and assesses the impact of state officials, legionaries, and elite entrepreneurs on the formation and expression of state identity through cult, law, and language. The formation of immigrant communities and the working conditions that permeated everyday life at the mines are then considered in the next chapter. Settlement, cult, and religious membership are evaluated for their role in creating and articulating community identities. Chapter 5 then analyzes the personal and sometimes private expression of identity that appears in commemoration, naming conventions, and burial. The three levels of state, community, and personal identities often overlap and collectively show that the hybridization of ideas from several cultures was central to how those at Alburnus Maior negotiated their identity in the Roman Empire.