Chantal Leroyer

Chantal Leroyer
Ministère de la culture et de la communication et Université Rennes 1

PhD

About

103
Publications
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1,005
Citations
Citations since 2016
25 Research Items
496 Citations
2016201720182019202020212022020406080
2016201720182019202020212022020406080
2016201720182019202020212022020406080
2016201720182019202020212022020406080

Publications

Publications (103)
Article
An archaeological survey carried out at Saint-Vincent-de-Paul, about 11 km northeast of Dax (Landes, southwest France) made it possible to investigate a new sequence of aeolian sands overlying a Middle Pleistocene alluvial terrace of the Adour River. A peat level with wood fragments was found between 2.2 and 2.4 m depth at the bottom of a gully inc...
Article
Full-text available
Quantitative reconstructions of past land cover are necessary to determine the processes involved in climate-human-land-cover interactions. We present the first temporally continuous and most spatially extensive pollen-based land-cover reconstruction for Europe over the Holocene (last 11 700 cal yr BP). We describe how vegetation cover has been qua...
Article
In 2005, when a major research programme was initiated with the aim of investigating the ancient district of Saint-Lupien and its supposed port, little was known about the Loire river landscapes and the dynamics of the river during Antiquity was in its infancy. On-site archaeological and environmental studies, and those developed in parallel on the...
Article
Full-text available
New data on the Neolithic occupation of the northern UAE coast were collected during the 2017–2018 excavations at the shellmidden site of UAQ36. Although so far limited to a fifth-millennium occupation, this data can be contextualized within the broader research programme of the French Archaeological Mission in the Emirate of Umm al-Quwain. When co...
Article
Full-text available
Dans le Bassin parisien, les débuts du Néolithique moyen se caractérisent d'une part, par l’apparition des structures de retranchements et des enclos funéraires et, d’autre part, par la diversification de l'implantation des habitats (Mordant 1980, 1984a, b, c). Ces innovations supposent une emprise nouvelle du groupe humains sur l'espace naturel. E...
Article
Interactions between human societies and vegetation since Prehistoric period up to the present time represents for archaeobotanists a vast ield of investigation, with numerous archaeological and historical implications. hree disciplines: palynology, anthracology and palaeoethnobotany are here under review, in a tentative for summarizing 40 years of...
Presentation
Palaeoenvironmental records, which represent a rich amount of information, set complex problems of data management. Thus, they need to be stored within an appropriate device, such as an online RDBMS. Indeed, several European bioarcheological database projects already exist but they don't concern anthracological and palynological records. For these...
Article
Among the most recent developments in palynology, a growing number of studies focuses on quantitative reconstructions of vegetation cover. Indeed, the non-linear relationship observed between the pollen counts and vegetation, mainly due to interspecific differences in pollen production and pollen dispersal, can be corrected through the use of mathe...
Article
The INRAP rescue excavation campaign at Thourotte «La Motte» (60), associated to the lansdcape development of the «Seine-Nord Europe» channel, revealed new archaeological and palaeoenvironmental information on the poorly-explored area of the Middle Oise valley, upstream of Compiègne. Geophysical and morpho-sedimentary survey of a palaeochannel that...
Article
Estuaries are dynamic systems that collect terrestrial, aerial, fluvial, and marine inputs, including organic microfossils, which, when fossilized and observed on palynological slides, are also referred to as palynomorphs (pollen and non-pollen palynomorphs including dinoflagellate cysts or dinocysts). To understand these organic microfossil deposi...
Chapter
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Abstract The foundations of an Early Gallo-Roman wooden watermill were discovered in the township of Art-sur-Meurthe in a canal along the Meurthe river. The watermill comprises several mill races built with stakes and wattle fencing, gearing elements (cogs) and parts of a paddle wheel (blades).The mill was built in an open area used for pasture and...
Article
It is still debated whether climate changes had an impact on the emergence, spread, and disappearance of early production-based (Neolithic) adaptations. To date, and despite the incorporation of various paleoclimatic proxies, there exists no spatial reconstruction of the regional impact of the North Atlantic cooling events on Central–Western Europe...
Article
Full-text available
A sediment core has been retrieved from Vanevan peat (south-eastern shore of Lake Sevan, Armenia), which is today disconnected from Lake Sevan thanks to an artificial shallowing of the lake. Based on 5 radiocarbon dates, Vanevan record covers the Mid Holocene (from ca. 7800 to ca. 5100 cal. BP). The Late Holocene is today absent in the peat stratig...
Article
Full-text available
Cet article constitue la synthèse des connaissances actuelles sur les limons fluviatiles du site magdalénien d’Étiolles (Essonne, France). Les données ont été acquises dans le cadre de plus de quarante ans de fouilles et de recherches sur le contexte physique et naturel des occupations humaines. L’intérêt des limons d’Étiolles tient à la fois à l’â...
Poster
Full-text available
L’objectif de l’étude est de proposer une reconstitution des paléoenvironnements qui se sont succédés depuis environ 10 000 ans dans la vallée de la Loire à Nantes. L’étude pluridisciplinaire (sédimentologique, minéralogique (argiles), micropaléontologique : foraminifères, thécamoebiens, dinokystes et pollen) de carottages, au carrefour des influen...
Conference Paper
Full-text available
La séquence extraite à Vanevan (sud est du lac Sevan, Arménie) a fait l’objet d’une étude pluridisciplinaire (pollen, micro-charbons, modélisation paléoclimatologique), renforcée par les recherches géomorphologiques et archéologiques menées aux alentours du lac. Selon le modèle d’âge, l’Holocène moyen est documenté avec une résolution de 79 ans ent...
Article
A sediment core has been retrieved from Vanevan peat (south-eastern shore of Lake Sevan, Armenia), which is today disconnected from Lake Sevan thanks to an artificial shallowing of the lake. Based on 5 radiocarbon dates, Vanevan record covers the Mid Holocene (from ca. 7800 to ca. 5100 cal. BP). The Late Holocene is today absent in the peat stratig...
Article
Detailed stratigraphic analysis and numerical dating (OSL, IRSL, ESR, 14C) of Pleistocene coversands in southwest France enable the construction of a renewed chronostratigraphic framework for sand depo-sition. The chronological data obtained from sandsheet units testify to the development of transgressive dunefields since at least the Middle Pleist...
Article
We present quantitative reconstructions of regional vegetation cover in north-western Europe, western Europe north of the Alps, and eastern Europe for five time windows in the Holocene (around 6k, 3k, 0.5k, 0.2k, and 0.05k calendar years before present (BP)) at a 1° x 1° spatial scale with the objective of producing vegetation descriptions suitable...
Article
Des études palynologiques et anthracologiques ont été réalisées conjointement sur deux sites archéologiques pyrénéens. Ces deux exemples viennent illustrer le débat sur l'apport respectif de chaque discipline à la connaissance du paysage végétal passé et sur leur complémentarité. D'un point de vue qualitatif, les deux méthodes s'accordent à enregis...
Article
Full-text available
In the lower valley of the Marne River, valley-bottom infilling was studied at various sites. The combination of sedimentary records, palynological analysis, 14C dating and consideration of archaeological data has enabled reconstruction of valley-bottom evolution during the Holocene. The beginning of the Holocene is characterised by strong incision...
Article
Full-text available
In the lower valley of the Marne River, valley-bottom infilling was studied at various sites. The combination of sedimentary records, palynological analysis, 14C dating and consideration of archaeological data has enabled reconstruction of valley-bottom evolution during the Holocene. The beginning of the Holocene is characterised by strong incision...
Article
Full-text available
Decouvert fortuitement en 1976 suite a un decapage industriel, un tumulus a couronne de pierres comportant une inhumation centrale a fait l’objet d’une fouille de sauvetage. Situe dans la vallee du Crould au nord de Paris, les diverses etudes environnementales (geoarcheologie, malacologie, palynologie) ont permis de restituer l’evolution du paysage...
Conference Paper
Full-text available
The comparison between the palynological and the anthracological records of the Paris basin during the Holocene provides congruent pictures. This, despite some differences related to the nature and origin of the investigated samples (e.g., from archaeological contexts or paleochannels). At basin level, both analytical approaches similarly record th...
Article
Full-text available
Warluis Mesolithic sites were discovered during rescue archaeological excavations in a quarry spread over 40 hectares, located in the Therain alluvial plain (Northern France). Several palaeochannels of Lateglacial and Holocene age are present. The Lateglacial sequence contains organic and silty deposits. Holocene infillings are mainly peaty, except...
Article
Full-text available
Warluis Mesolithic sites were discovered during rescue archaeological excavations in a quarry spread over 40 hectares, located in the Therain alluvial plain (Northern France). Several palaeochannels of Lateglacial and Holocene age are present. The Lateglacial sequence contains organic and silty deposits. Holocene infillings are mainly peaty, except...
Chapter
Full-text available
Les études palynologiques effectuées en Dordogne permettent de suivre l'histoire régionale du châtaignier. Ses premières apparitions sont enregistrées, vers 2000 cal BC, durant les phases ancienne et moyenne de l'Âge du bronze. Il disparaît au début du Bronze final et reste absent durant tout l'Âge du fer. Il réapparaît ensuite au début de l'Antiqu...
Article
Late-glacial to Holocene alluvial deposits have been discovered along a small tributary of the Dordogne river at “La Brunetière” near Bergerac (Dordogne, southwestern France) and yield novel information on the evolution of rivers at the end of the Weichselian. The deposits show that the main alluvial changes described in Northern Europe occurred si...
Article
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LATE-GLACIAL PALAEOENVIRONMENTS IN AQUITAINE, SOUTHWESTERN FRANCE: THE "LA BRUNETIERE" ALLUVIAL SEQUENCE (BERGERAC, FRANCE) Late-glacial to Holocene alluvial deposits have been discovered along a small tributary of the Dordogne river at "La Brunetiere" near Bergerac (Dordogne, southwestern France) and yield novel information on the evolution of riv...
Article
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Bio-chronostratigraphic observations compiled from Quai-Branly in Paris (France) and their comparison with previous studies in the Paris Basin allow documentation of the morphodynamic evolution of the River Seine during the middle and late Holocene. This history begins in the Boreal (between 9500 and 8850 cal. BP), with the deposition of tufa, expr...
Book
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Résumé Le programme de surveillance et d’étude archéologique des sablières de la moyenne vallée de l’Oise a été mis en place en 1987, pour pallier à la destruction massive occasionnée par les extractions de sable et a perduré jusqu’à la fin de l’année 2000. Au cours de ces treize années, c’est plus de six cents hectares qui ont été entièrement déca...
Article
Full-text available
Impacts interculturels au Néolithique moyen, p. 131-149 (25 e suppl. à la R.A.E.), S.A.E. 2006 133 * Ministère de la Culture -Centre National de Préhistoire, PACEA/UMR 5199 du CNRS, 38, rue du 26 e RI, 24000 Périgueux et UMR 7041 (équipe Archéologie environnementale). chantal.leroyer@culture.gouv.fr INTRODUCTION