190 research outputs found
Approche géoarchéologique des basses vallées fluviales de Corse
Contexte gĂ©nĂ©ral de la recherche et problĂ©matiques Le littoral corse tel quâon le voit aujourdâhui, parsemĂ© de lagunes, de marais et marĂ©cages (fig. 1), est relativement rĂ©cent (moins de deux millĂ©naires) et a vraisemblablement Ă©tĂ© en partie gĂ©nĂ©rĂ© par la progradation de fleuves (alluvionnement massif) en fonction des pĂ©riodes dâanthropisation des bassins versants Ă©tudiĂ©s. Parmi les problĂ©matiques les plus importantes du PCR, il convient de souligner lâĂ©tude de la genĂšse des marais littoraux ..
Approche géoarchéologique des basses vallées fluviales de Corse
En 2014, deux nouvelles missions de terrain ont Ă©tĂ© organisĂ©es de maniĂšre complĂ©mentaire pour le volet Mariana/Canonica, et de maniĂšre pionniĂšre pour les volets Del Sale (AlĂ©ria) et Cap Corse, ces deux derniers venant sâajouter aux trois volets gĂ©ographiques initialement prĂ©vus dans le projet dĂ©posĂ© fin 2012 (basses vallĂ©es du Sagone, du Golo et du Taravo). Le littoral corse tel quâon le voit aujourdâhui, parsemĂ© de lagunes, de marais et marĂ©cages, est relativement rĂ©cent (moins de deux millĂ©..
TrĂ Â Mare Ú Monti : approche gĂ©oarchĂ©ologique des paysages de Corse Ă lâHolocĂšne, entre mer et intĂ©rieur des terres
En 2018, dans le cadre du PCR « Approche gĂ©oarchĂ©ologique des paysages de Corse Ă lâHolocĂšne, entre mer et intĂ©rieur des terres (« TrĂ Mare Ăš Monti ») (resp. Matthieu Ghilardi, 2018-2020) et dâune collaboration avec lâAssociation pour la recherche prĂ©- et protohistorique en Corse (prĂ©s. Jean Sicurani), lâARSEC (Alain Pasquet) et avec le soutien du programme national PALEOMEX-MISTRALS (CNRS), plusieurs secteurs gĂ©ographiques de lâĂźle au patrimoine archĂ©ologique trĂšs riche (Balagne, baie de San..
Géoarchéologie des basses vallées fluviales
L'année 2013 aura été marquée par un important travail de prospections de terrain (trois missions effectuées en mai, septembre et octobre) et de laboratoire (étude des carottes prélevées en mai et septembre 2013 au cours des mois de septembre et de novembre). Les trois volets géographiques mentionnés dans le PCR (Sagone, Taravo et Golo) ont ainsi été étudiés, conformément aux objectifs cités dans le projet soumis en 2012 pour financement, et ont dÚs à présent livré des résultats importants qu..
TrĂ Mare Ăš Monti : approche gĂ©oarchĂ©ologique des paysages de Corse Ă lâHolocĂšne, entre mer et intĂ©rieur des terres
En 2019, les activitĂ©s du PCR se sont poursuivies avec la rĂ©alisation dâopĂ©rations de prĂ©lĂšvement par carottage dans la lagune de Biguglia, ainsi quâavec de nouvelles analyses de laboratoire pour les autres sites Ă©tudiĂ©s (Crovani, Calenzana et San Ciprianu, Lecci) (fig. 1). Fig. 1 â Cartographie des activitĂ©s 2019 DAO : M. Ghilardi (CNRS). Un carottage de 4,20 m de longueur a Ă©tĂ© rĂ©alisĂ© en octobre (Ă©quipe : Matthieu Ghilardi, CNRS et François Warichet, UniversitĂ© de LiĂšge, Belgique) en coll..
Of Dykes and Men: Eretria in the Making
Ancient Eretria is located in a narrow coastal plain of central Euboea. The settlement developed over a deltaic lowland and a limestone hill which served as an acropolis. Excavations in the lower strata of the settlement uncovered important Early Iron Age remains, which were partially buried under thick layers of sand. Several walls made of large blocks were discovered in several parts of the settlement and interpreted as embankment walls for channeling torrential floods (Krause 1982). Recently, however, a more global approach led to a paleoenvironmental reconstruction of the landscape, assessing the impact of human occupation and landscape dynamics. The results shows how the inhabitants first adapted to the natural constraints and progressively reshaped their micro-environment (Ghilardi et al. 2016). Yet, the overgrowing impact of human activities on the ecosystem came with consequences, probably accelerating slope erosion, as well as provoking alluvial crises and the formation of marshes
Reconstructing the fluvial history of the Lilas River (Eu-boea Island, Central West Aegean Sea) from the Mycenaean times to the Ottoman period
Funding: Aix-Marseille University.This paper aims to reconstruct the alluvial activity for the Lilas river, the second-largest catchment of Euboea Island (Central Western Aegean Sea), for approximately the last three and a half millennia. The middle reaches (Gides basin) exhibit several historical alluvial terraces that were first recognised in the 1980s but have remained poorly studied, resulting in uncertain chronological control of palaeofluvial activity. In order to reconstruct the past fluvial dynamics of the Lilas river, a ca. 2.5 m thick stratigraphic profile has been investigated for granulometry and magnetic parameters. Absolute dating of the sediments was possible by applying Optically Stimulated Luminescence (OSL). The results reveal: (i) two coarse-grained aggradational episodes dated from the Mycenaean/Early Iron Age and the Roman periods, respectively, (ii) a phase of rapid fine-grained vertical accretion corresponding to the Late Byzantine to early Venetian periods, (iii) potential evidence for final alluvial deposition from the Little Ice Age/Ottoman period, and (iv) two major incision episodes inferred from Ancient Greek times and most of the Byzantine period. Based on the published core material, the paper also evaluates the direct impacts of the Late Holocene alluviation recorded mid-stream on the fluvial system situated downstream in the deltaic area. Sediment sourcing is attempted based on the magnetic properties of the catchment lithology and of alluvium collected upstream along the main stream bed. Finally, the present paper discusses the possible links between Late Holocene hydroclimatic oscillations and the aggradational/incision phases revealed in the Gides basin. Correlations are attempted with regional palaeoclimate records obtained for the Aegean. In addition to climatic variability, anthropogenic factors are considered: specific land use for agricultural purposes, in particular during the Mycenaean period, the Roman and the Late Byzantine/Early Venetian periods, might have enhanced sediment deposition. Archaeological information and pollen records were also evaluated to reconstruct regional land-use patterns and possible impacts on soil accumulation over the last 3.5 millennia.Publisher PDFPeer reviewe
Les Bouches de Bonifacio Ă lâĂ©poque romaine : approches archĂ©ologique et gĂ©oarchĂ©ologique
Parmi les six axes thĂ©matiques (AT) qui ont Ă©tĂ© dĂ©finis dans le cadre du PCR, seuls quatre ont Ă©tĂ© dĂ©veloppĂ©s cette annĂ©e. Le site romain dâhabitat de Cavallo (AT3) est difficilement accessible en raison de difficultĂ©s administratives et de rĂ©ticences de la part des propriĂ©taires. Par ailleurs, lâĂ©quipe de lâInrap nâa pas pu investir de temps dans ce projet et lâinstitution nâa pas accordĂ© de moyens Ă ses agents pour le PCR. Lâapproche de la sphĂšre funĂ©raire (AT4) nâa pas pu ĂȘtre dĂ©veloppĂ©e, ..
Les Bouches de Bonifacio Ă lâĂ©poque romaine : approches archĂ©ologique et gĂ©oarchĂ©ologique
Ce projet intitulĂ© « Les Bouches de Bonifacio Ă lâĂ©poque romaine : approches archĂ©ologique et gĂ©oarchĂ©ologique » propose dâĂ©tudier les vestiges antiques sur les littoraux corse et sarde (villa de Piantarella, Ă©tablissement de Cavallo, carriĂšres de granite) (fig. 1). Le cadre chronologique est compris entre la fin du ier s. av. J.âC. et le ive s. apr. J.âC. afin dâaborder la phase de stabilisation du territoire aprĂšs la fondation des colonies de Mariana et dâAlĂ©ria. FondĂ© sur une approche plur..
Holocene demographic fluctuations, climate and erosion in the Mediterranean: A meta data-analysis
As part of the Changing the Face of the Mediterranean Project, we consider how human pressure and concomitant erosion has affected a range of Mediterranean landscapes between the Neolithic and, in some cases, the post-medieval period. Part of this assessment comprises an investigation of relationships among palaeodemographic data, evidence for vegetation change and some consideration of rapid climate change events. The erosion data include recent or hitherto unpublished work from the authors. Where possible, we consider summed probabilities of 14C dates as well as the first published synthesis of all known optically stimulated luminescence dated sequences. The results suggest that while there were some periods when erosion took place contemporaneously across a number of regions, possibly induced by climate changes, more often than not, we see a complex and heterogeneous interplay of demographic and environmental changes that result in a mixed pattern of erosional activity across the Mediterranean
- âŠ