Search Results - "VALLADAS, Hélène"
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U-series dating at Nerja cave reveal open system. Questioning the Neanderthal origin of Spanish rock art
Published in Journal of archaeological science (01-05-2020)“…U/Th data obtained on CaCO3 layers covering rock art at Nerja Cave (Spain) evidence erroneous ages and an inverse relation between uranium concentration and…”
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A high-precision chronological model for the decorated Upper Paleolithic cave of Chauvet-Pont d’Arc, Ardèche, France
Published in Proceedings of the National Academy of Sciences - PNAS (26-04-2016)“…Radiocarbon dates for the ancient drawings in the Chauvet-Pont d’Arc Cave revealed ages much older than expected. These early ages and nature of this…”
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Early seventh-millennium AMS dates from domestic seeds in the Initial Neolithic at Franchthi Cave (Argolid, Greece)
Published in Antiquity (01-12-2013)“…When, and by what route, did farming first reach Europe? A terrestrial model might envisage a gradual advance around the northern fringes of the Aegean,…”
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35,000 years of recurrent visits inside Nerja cave (Andalusia, Spain) based on charcoals and soot micro-layers analyses
Published in Scientific reports (11-04-2023)“…Charcoal and micro-layers of soot trapped in speleothems from the inner galleries of Nerja Cave were analysed through an interdisciplinary study. The absolute…”
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Dating the Middle Paleolithic deposits of La Quina Amont (Charente, France) using luminescence methods
Published in Journal of human evolution (01-08-2017)“…The site of La Quina Amont, located in the Charente region, is one of the most important sites in southwestern France for studying major changes in human…”
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New electron spin resonance (ESR) ages from Geißenklösterle Cave: A chronological study of the Middle and early Upper Paleolithic layers
Published in Journal of human evolution (01-08-2019)“…Geißenklösterle Cave (Germany) is one of the most important Paleolithic sites in Europe, as it is characterized by human occupation during the Middle and early…”
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A 36,000-Year-Old Volcanic Eruption Depicted in the Chauvet-Pont d'Arc Cave (Ardèche, France)?
Published in PloS one (08-01-2016)“…Among the paintings and engravings found in the Chauvet-Pont d'Arc cave (Ardèche, France), several peculiar spray-shape signs have been previously described in…”
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The Laschamp-Mono lake geomagnetic events and the extinction of Neanderthal: a causal link or a coincidence?
Published in Quaternary science reviews (01-12-2010)“…The causes of Neanderthal extinction and the transition with the modern man in Europe and Near East remain largely uncertain. The two main factors currently…”
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Context and dating of Aurignacian vulvar representations from Abri Castanet, France
Published in Proceedings of the National Academy of Sciences - PNAS (29-05-2012)“…We report here on the 2007 discovery, in perfect archaeological context of part of the engraved and ocre-stained undersurface of the collapsed rocksheiter…”
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Reassessment of TL age estimates of burnt flints from the Paleolithic site of Tabun Cave, Israel
Published in Journal of human evolution (01-11-2003)“…The stratigraphy of Tabun Cave (Mt. Carmel), which comprises one of the longest sequences of Lower and Middle Paleolithic of the Near East, is widely used as a…”
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Cross-calibration between beta and gamma sources using quartz OSL: Consequences of the use of the SAR protocol in optical dating
Published in Radiation measurements (01-09-2014)“…The radiation dose delivered by the 90Sr beta source of a TL-OSL reader and the one delivered by a 137Cs gamma source were compared using OSL dating techniques…”
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Comment on: “Uranium–thorium dating method and Palaeolithic rock art” by Sauvet et al. (2015, in press)
Published in Quaternary international (08-03-2017)“…Sauvet et al. (in press) present a partial description of the Uranium-series or 230Th/234U dating method, which leads them to criticize this dating tool and…”
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The oldest anatomically modern humans from far southeast Europe: direct dating, culture and behavior
Published in PloS one (17-06-2011)“…Anatomically Modern Humans (AMHs) are known to have spread across Europe during the period coinciding with the Middle to Upper Paleolithic transition. Whereas…”
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Datation des sites préhistoriques : quoi de neuf depuis les années 1980 ?
Published in Nouvelles de l'archéologie (05-12-2019)“…Since the 1980s, the dating methods used in Prehistory have become more diversified and geochronologists have now at hand a wide range of methods to date…”
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ESR/U-series chronology of the Lower Palaeolithic palaeoanthropological site of Visogliano, Trieste, Italy
Published in Quaternary geochronology (01-11-2008)“…The Visogliano shelter, in north-eastern Italy, is an important Middle Pleistocene occupation site where human remains were found together with an archaic…”
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Style, Chauvet and radiocarbon
Published in Antiquity (01-03-2003)“…The article by Bahn and Pettitt (above) carries the suggestion that the diverse dates obtained for Candamo in some way throw doubt on those for Chauvet and by…”
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Modern human incursion into Neanderthal territories 54,000 years ago at Mandrin, France
Published in Science advances (11-02-2022)“…Determining the extent of overlap between modern humans and other hominins in Eurasia, such as Neanderthals and Denisovans, is fundamental to understanding the…”
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Datation par les méthodes ESR/U-Th combinées de sites du Pléistocène supérieur : méthodologie et application en contexte karstique
Published in Anthropologie (Paris) (01-05-2017)“…Les méthodes ESR/U-Th combinées sont couramment utilisées dans la datation de restes fossiles du Pléistocène inférieur et moyen. Les problématiques liées à ces…”
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Reappraisal of the chronology of Orgnac 3 Lower-to-Middle Paleolithic site (Ardèche, France), a regional key sequence for the Middle Pleistocene of southern France
Published in Journal of human evolution (01-01-2022)“…Previous studies have suggested that the Lower-to-Middle Paleolithic transition was associated with the earliest Neanderthals, but recent research has…”
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Middle Pleistocene Homo behavior and culture at 140,000 to 120,000 years ago and interactions with Homo sapiens
Published in Science (American Association for the Advancement of Science) (25-06-2021)“…Our understanding of the origin, distribution, and evolution of early humans and their close relatives has been greatly refined by recent new information…”
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