Papers by Christelle Lahaye
A Third Neanderthal Individual from La Ferrassie Dated to the End of the Middle Palaeolithic
HAL (Le Centre pour la Communication Scientifique Directe), 2023
Paléo
probably intensified due to the numerous contacts Hardy had at the time. It also reflects the imp... more probably intensified due to the numerous contacts Hardy had at the time. It also reflects the importance given to personal collections during this period and the multiple ways of acquiring them, including commercial transactions by antiquarians, donations, exchanges of material, or simply sold for financial gain. The collections from La Balutie underscore the interest of Reverdit and other prehistorians of the time had in the Upper Paleolithic lithic materials from the site, including a variety of "beautiful pieces." However, these pieces are now of only limited interest, as they lack both contextual information and a precise provenience. La Balutie therefore appeared to be relatively famous and frequently visited during the end of the 19 th and first quarter of the 20 th centuries. Among the visitors during this period was Marcel Castanet, an excavator of Louis Didon, who visited the site on his behalf. Castanet convinced Didon to lease the Blanchard site from his neighbor in 1910, beating out Jean Leyssales, who was also interested in the site on behalf of Otto Hauser. Multiple exchanges between Castanet and Didon show that Castanet considered La Balutie promising, eventually "scratching its surface" to better evaluate its potential. Nonetheless, in this particular prehistoric field war, Castanet and Didon were in the end beaten out by Hauser and Leyssales, who leased the site in 1910. Questions remain as to whether Hauser ever excavated at La Balutie. In 1911, he lists it as one of his sites, mentioning that it had not yet been excavated. Little information from La Balutie is known between this time and his hasty departure from France at the beginning for the First World War, after which both his possessions and land were sequestered. Material from the sites of « la Balutie » and "la Balucie" is mentioned as having been seized from Hauser and Leyssales by the French state in 1921, which could correspond to the objects curated in the Capitan collection of the National Museum of Archaeology in Saint-Germain-en-Laye. These objects bear labels with the inscription "Baloutie," the spelling primarily used by Parrot and Hauser. If the question of whether Hauser and Leyssales excavated at La Balutie seems anecdotal, it nevertheless had a nonnegligible impact on the subsequent history of the site. In 1925, Franck Delage investigated the area of La Balutie that had not been leased by Hauser, the cave, which gave rise to his 1939 paper describing a cave in which nothing was preserved. However, he was unable to continue his work at the other areas of the site, due to Hauser and Leyssales' lease. There is no evidence of any new work at the site in the year after the start of the excavations, demonstrating no new excavations were permitted. In addition, the new property owner wanted to use the land as he see saw fit and likely refused to allow any other archaeological excavations, despite Denis Peyrony's attempt to convince him otherwise.
Valle Giumentina (Abruzzes, Italie)Deuxième mission : étude des comportements techno-économiques au Pléistocène moyen
International audienc
Studying Middle Pleistocene human societies in the 21st century: 10 years of research at Valle Giumentina (Abruzzo, Italy)
HAL (Le Centre pour la Communication Scientifique Directe), Mar 14, 2022
The “Vale da Pedra Furada”, Serra da Capivara (Brazil), case study: human occupation in South-America more than 20 kyears ago
HAL (Le Centre pour la Communication Scientifique Directe), Sep 21, 2012
International audienc
Chronologie des occupations du Paléolithique moyen du Bassin aquitain: un nouveau bilan
HAL (Le Centre pour la Communication Scientifique Directe), Sep 1, 2014
International audienc
Rapport quadriennal de mission 2016/2019 et demande de renouvellement 2020/2023. Une nouvelle paléo-histoire de l'Homme en Amérique du Sud
HAL (Le Centre pour la Communication Scientifique Directe), Dec 2, 2019
La préhistoire américaine dans son ensemble est actuellement celle qui est la plus controversée m... more La préhistoire américaine dans son ensemble est actuellement celle qui est la plus controversée mais aussi, d’une certaine façon, la plus en mouvement(s) avec les débats d’idées sur la question des premiers peuplements. D’un côté, il y a les partisans d’une chronologie courte, qui varie selon les découvertes entre 13,000 ans et 15,000 ans, et de l’autre, il y a les partisans d’une occupation bien plus ancienne, portés par leurs données qui les conduisent à accepter l’évidence des faits et non celles des seules interprétations. La synthèse qui suit est l’aboutissement de dix années de recherche systématique française dans la région du Piauí, Brésil, d’accumulation de données, de datations et d’analyses. Outre leurs richesses, en quantité, qualité, exceptionnalité, leur originalité d’approche transdisciplinaire, ou encore les premières conclusions auxquelles elles aboutissent qui bousculent l’histoire mondiale des migrations et peuplements, nos recherches permettent de faire briller la rigueur de l’enseignement et de la recherche française dans l’ensemble des Amériques. Nous avertissons le rapporteur que ce rapport a été conçu comme une tentative de synthèse plutôt qu’un rapport stricto sensu sur les quatre dernières années. Ce programme est un parcours dont on espère percevoir l’horizon, mais qui s’éloigne un peu plus chaque année au fur et à mesure de la profondeur temporelle de nos découvertes
Geochronology, 2021
Statistical analysis has become increasingly important in optically stimulated luminescence (OSL)... more Statistical analysis has become increasingly important in optically stimulated luminescence (OSL) dating since it has become possible to measure signals at the singlegrain scale. The accuracy of large chronological datasets can benefit from the inclusion, in chronological modelling, of stratigraphic constraints and shared systematic errors. Recently, a number of Bayesian models have been developed for OSL age calculation; the R package "BayLum" presented herein allows different models of this type to be implemented, particularly for samples in stratigraphic order which share systematic errors. We first show how to introduce stratigraphic constraints in BayLum; then, we focus on the construction, based on measurement uncertainties, of dose covariance matrices to account for systematic errors specific to OSL dating. The nature (systematic versus random) of errors affecting OSL ages is discussed, based -as an example -on the dose rate determination procedure at the IRAMAT-CRP2A laboratory (Bordeaux). The effects of the stratigraphic constraints and dose covariance matrices are illustrated on example datasets. In particular, the benefit of combining the modelling of systematic errors with indepen-dent ages, unaffected by these errors, is demonstrated. Finally, we discuss other common ways of estimating dose rates and how they may be taken into account in the covariance matrix by other potential users and laboratories. Test datasets are provided as a Supplement to the reader, together with an R markdown tutorial allowing the reproduction of all calculations and figures presented in this study.
Timing and dynamics of the first settlements in America: new insights through OSL dating of the Serra da Capivara archaeological sites (Brazil)
International audienc
Les premiers peuplements préhistoriques en Amérique du Sud. Rapport d'activité : 2018
Declare Patrimoine culturel de l’Humanite par l’UNESCO en 1991, le Parc national de la Serra da C... more Declare Patrimoine culturel de l’Humanite par l’UNESCO en 1991, le Parc national de la Serra da Capivara a ete cree pour preserver plus de 1500 sites archeologiques. Parmi ces sites, plus de 1200 Tocas ou grottes peintes sont datees de la phase de transition Pleistocene/Holocene. De tres nombreux autres sites archeologiques de plein air ou en grotte sont aussi attestes. Le plus celebre d’entre eux est le site du Boqueirao da Pedra Furada. Sa decouverte, en 1980, et les fouilles qui s’en suivirent, dirigees successivement par N. Guidon et F. Parenti, ont permis de mettre au jour pour la premiere fois au Bresil une sequence stratigraphique allant de l’Holocene jusqu’au debut du Pleistocene superieur, datee au dela de 40 000 ans (MIS3). Cette anciennete, allant a l’encontre du paradigme limitant l’anciennete de la colonisation des Ameriques au-dela de 12000 ans, a provoque une tres forte polemique. Neanmoins, d’autres sites, tant en Amerique du Sud avec les sites de Monte Verde au sud,...
New data about the chronology of middle Pleistocene (MIS 5-3) Mousterian sites of southwest France: A multi-method (OSL, IRSL and TL) and multi-material (quartz, feldspars and flint) approach
New data on the possible Neandertal burial at Regourdou (Montignac-sur-Vézère, Dordogne, France)
17 pagesInternational audienc
La station de La Balutie (commune de Montignac, Dordogne). Rapport de fouille 2019 et demande d'opération triannuelle 2020-2022
Regourdou (commune de Montignac, Dordogne). Rapport d'opération de prospection thématique 2016 et demande d'autorisation de fouille programmée annuelle 2017
Formation Processes of the Late Pleistocene Site Toca da Janela da Barra do Antonião – Piauí (Brazil)
PaleoAmerica, 2021
ABSTRACT Archaeological research of late Pleistocene sites in northeastern Brazil has rarely anal... more ABSTRACT Archaeological research of late Pleistocene sites in northeastern Brazil has rarely analyzed site formation processes from a geoarchaeological perspective. This has contributed to the long-held debate over the reliability of Pleistocene ages and the anthropic origin of stone tools and combustion features. In this work, we combine high-resolution geoarchaeological methods to study the formation processes of the Toca da Janela da Barra do Antonião North site (TJBA-North), located in a surface karst about 12 km northeast of the classical site of Boqueirão da Pedra Furada (Serra da Capivara, Piauí). The site contains stone tools and megafauna remains in sedimentary levels that have been dated by optically stimulated luminescence (OSL) as more than 20,000 years ago up to the early Holocene. Using micromorphology, Fourier transform infrared spectrometry (FTIR), micro-FTIR on the micromorphology thin sections, and magnetic analyses, we carried out a comprehensive study of the climatic conditions during the late and terminal Pleistocene and investigated the depositional history of the site.
Paléo, 2017
Cet article présente une synthèse des données chronologiques du site des Pradelles (Marillac-le-F... more Cet article présente une synthèse des données chronologiques du site des Pradelles (Marillac-le-Franc, Charente, France). Le gisement se caractérise dans son locus est par un remplissage de près de quatre mètres d'épaisseur ayant livré des dépôts de la fin du Paléolithique moyen dans lesquels une industrie moustérienne de type Quina est associée à une faune abondante largement dominée par le renne. Durant les fouilles conduites par B. Maureille et A. Mann entre 2001 et 2013, les données chronologiques obtenues pour ce locus ont été peu nombreuses : une datation par thermoluminescence (TL) sur un silex chauffé et une autre par U-Th sur un spéléothème situé dans la partie inférieure de la séquence. Des analyses par le radiocarbone ont été également réalisées sur des ossements provenant du sommet du remplissage, mais se sont révélées partiellement infructueuses en raison de l'ancienneté des vestiges proche de la limite de la méthode. ./.
Science Advances, 2019
A ≥200,000-year-old Aegean Basin site suggests wider dispersal of hominins and early modern human... more A ≥200,000-year-old Aegean Basin site suggests wider dispersal of hominins and early modern humans than believed previously.
Another site, same old song: The Pleistocene-Holocene archaeological sequence of Toca da Janela da Barra do Antonião-North, Piauí, Brazil
Quaternary Geochronology, 2018
This project benefited from French State help managed by the French Research National Agency unde... more This project benefited from French State help managed by the French Research National Agency under the Investissements d'Avenir Program (reference ANR-10-LABX-52). The authors are also grateful to the Nouvelle Aquitaine Region Council (France), the FUMDHAM (Brazil) and the French Ministry of Foreign Affairs for funding. The authors also wish to thank the French National Facility for 14C measurements (LMC14) for performing all 14C activity measurement.
Quaternary Geochronology, 2017
HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific r... more HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.