δ13C referential in three Pinus species for a first archaeological application to Paleolithic contexts: “Between intra- and inter-individual variation and carbonization effect”

Audiard, Benjamin; Blasco, Thierry; Brossier, Benoît; Fiorentino, Girolamo; Battipaglia, Giovanna; Théry‐Parisot, Isabelle

doi:10.1016/j.jasrep.2018.06.029

Cited by 4 publications

(14 citation statements)

References 53 publications

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“…However, several studies on isotopic variability between species of the same genus reveal that it is possible to combine their signals (same response) (Gagen et al, 2006;Marshall and Monserud, 1996). Moreover, in a previous study we demonstrated that the interspecific variability tested on 3 species of pine (P. nigra, P. sylvestris and P. halepensis) is lower than the intra-and inter-individual variability before and after carbonization (same effects) (Audiard et al, 2018). These analyses suggested a limited and not significant supplementary intragenus variability in a δ 13 C Pinus signal.…”

Section: Methodsmentioning

confidence: 70%

“…One of the most important issues that arises from this study is related to the climatic/environment significance of the mean isotopic signal from isolated charcoal analysis in the Pleistocene context. Nevertheless, the constant carbon content of about 60% that was found for all samples reveals the same degree of carbonization and allowed us to avoid a "carbonization correction" of the values in δ 13 C (Audiard et al, 2018;Ferrio et al, 2006). However, this observation had already been made in a previous study of Paleolithic charcoal (Audiard et al, 2019).…”

Section: Isotopic Signal Variabilitymentioning

confidence: 86%

“…First, we observed that all charcoal samples recorded the same carbon content (%C) of around 60%. Correlation observed between the decrease in δ 13 C and the increase in %C allowed to propose a relative same carbonization impact on the charcoal (Audiard et al, 2018;Ferrio et al, 2006). Since our samples record the same degree of carbonization, no correction was applied.…”

Section: Data Processingmentioning

confidence: 93%

“…For example, the effect of charring on isotopic signal evolution is now well documented. The measurement of the carbon content (%C) as an indicator of the carbonization state allow for isotopic signal corrections (Audiard et al, 2018;Ferrio et al, 2006;Resco et al, 2011;Steinbeiss et al, 2006;Voltas et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

“…The methodological bases of the application of δ 13 C to Pleistocene can be found in (Audiard et al, 2018) and a first application to the study of the Middle Paleolithic sequence of La Combette (Vaucluse, France) has shown the potential of δ 13 C as a paleoclimatic proxy (Audiard et al, 2019). In the continuation of this work, we present here, the first application of the method to charcoal, with individual analyses from a major Middle Paleolithic settlement: Les Canalettes rock shelter (Aveyron, France).…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

New climatic approaches to the analysis of the middle Paleolithic sequences: Combined taxonomic and isotopic charcoal analyses on a Neanderthal settlement, Les Canalettes (Aveyron, France)

Audiard

Meignen

Blasco

et al. 2021

Quaternary International

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Section: Methodsmentioning

confidence: 70%

Section: Isotopic Signal Variabilitymentioning

confidence: 86%

Section: Data Processingmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

New climatic approaches to the analysis of the middle Paleolithic sequences: Combined taxonomic and isotopic charcoal analyses on a Neanderthal settlement, Les Canalettes (Aveyron, France)

Audiard

Meignen

Blasco

et al. 2021

Quaternary International

Self Cite

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Assessing the carbonisation temperatures recorded by ancient charcoals for δ13C-based palaeoclimate reconstruction

Mouraux

Delarue

Bardin

et al. 2022

Sci Rep

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Ancient charcoal fragments, produced by the use of wood as fuel in archaeological contexts or during natural or anthropic forest fires, persist in soil and sediments over centuries to millennia. They thus offer a unique window to reconstruct past climate, especially palaeo-precipitation regimes thanks to their stable carbon isotope composition. However, the initial δ13C of wood is slightly modified as a function of the carbonisation temperature. Carbonisation-induced 13C fractionation is classically investigated through a transfer function between experimental carbonisation temperatures and the carbon content. This approach assumes that the carbon content is conservative through time in ancient charcoals and neglects the potential impact of post-depositional oxidation occurring in soils and sediments. In the present study, we first show that post-depositional oxidation can lead to a large underestimation of past carbonisation temperatures, thereby minimising the estimation of carbonisation-induced 13C fractionations and possibly biasing δ13C-based climate reconstructions. Secondly, by combining carbon content, Fourier-transform infrared and Raman spectroscopy, we propose a new framework to assess the carbonisation temperatures registered in ancient charcoals. This new framework paves the way to reassessing δ13C-based climate reconstruction.

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35,000 years of recurrent visits inside Nerja cave (Andalusia, Spain) based on charcoals and soot micro-layers analyses

Medina‐Alcaide

Vandevelde

Quilès

et al. 2023

Sci Rep

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Charcoal and micro-layers of soot trapped in speleothems from the inner galleries of Nerja Cave were analysed through an interdisciplinary study. The absolute dating of the prehistoric subterranean activity of the cave and the identification of different phases of visits to the deep parts are presented and discussed. The charcoal analysis includes anthracological analysis and SEM–EDX. The soot analysis includes optical microscopy, Raman spectroscopy and TEM–EDX, and the microcounting of soot microlayers. The 14C dating of 53 charcoals identified 12 phases of prehistoric visits to the cave between 41,218 and 3299 cal. BP, putting back the origin of human occupation of this emblematic cave by 10,000 years. The interdisciplinary analysis of the soot microlayers allowed us to perform a high-precision zoom on the last three visitation phases identified by Bayesian analysis (8003–2998 cal. BP.), demonstrating that these phases contain at least 64 distinct incursions, with an average of one visit every 35 years for the Neolithic period. Spatial analysis showed that not all areas of the cave were used in the same periods, highlighting the repetition of visits to certain specific sectors of the Lower Galleries of the cave. Lastly, the anthracological data indicate a cross-cultural and unique use of Pinus tp. sylvestris-nigra wood for lighting activities over an extended period between the Gravettian and Upper Magdalenian.

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δ13C referential in three Pinus species for a first archaeological application to Paleolithic contexts: “Between intra- and inter-individual variation and carbonization effect”

Cited by 4 publications

References 53 publications

New climatic approaches to the analysis of the middle Paleolithic sequences: Combined taxonomic and isotopic charcoal analyses on a Neanderthal settlement, Les Canalettes (Aveyron, France)

New climatic approaches to the analysis of the middle Paleolithic sequences: Combined taxonomic and isotopic charcoal analyses on a Neanderthal settlement, Les Canalettes (Aveyron, France)

Assessing the carbonisation temperatures recorded by ancient charcoals for δ13C-based palaeoclimate reconstruction

35,000 years of recurrent visits inside Nerja cave (Andalusia, Spain) based on charcoals and soot micro-layers analyses

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