Cadre climatique et environnemental des acheuléens de la grotte du Lazaret, à Nice. Données paléontologiques, biogéochimiques et radiométriques établies sur les faunes de vertébrés et d’invertébrés

Valensi, Patricia; Bailón, Salvador; Michel, Véronique; Desclaux, Emmanuel; Rousseau, Louis; Onoratini, Gérard; Genty, Dominique; Blamart, Dominique; Lumley, Henry de

doi:10.4000/archeosciences.844

Cited by 13 publications

(20 citation statements)

References 12 publications

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“…; Baume Moula Guercy – Desclaux & Defleur ; and Baume Néron – Jeannet among others) and the French Mediterranean coast (Grotte du Lazaret – Valensi et al. ). In Iberia, records are mainly from the Mediterranean region and central and southern Spain.…”

Section: Changes In the Geographic Distribution Of Microtus Cabrerae mentioning

confidence: 97%

Documenting the biogeographic history ofMicrotus cabreraethrough its fossil record

Laplana

Sevilla²

2013

Mammal Review

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Microtus cabrerae is an Iberian endemic vole species with specific adaptations to the subhumid Mediterranean climate. Its living populations are under a regressive trend. The earliest known records of Microtus cabrerae date from the late Middle Pleistocene, and it originated from Microtus brecciensis. We describe changes in the geographic distribution of Microtus cabrerae throughout its history based on its palaeontological record, and link them to environmental changes that have taken place since the appearance of Microtus cabrerae. A series of successive chronological intervals comprising the recorded existence of the species was established, so that the majority of the published fossil records of Microtus cabrerae could be used for analysis. For each interval, a map with the inferred distribution of the species was created. The maps were used to establish variations in the species' distribution through time. A first regression in the extent of the distribution of Microtus cabrerae took place in Marine Isotope Stage 2, when the species abandoned south‐eastern France and central Spain, where it had been present since the beginning of the Late Pleistocene. This range contraction was probably due to the global decline in temperatures and rainfall that took place in this period. After a rapid recolonization of most of the previously abandoned areas at the beginning of the Holocene and a remarkable increase in records during the Neolithic, a new gradual decrease of records is observed from the Neolithic to the Roman period, intensifying from c. 2000 years ago onwards and ending with the final disappearance of the species from south‐western France and north‐eastern Iberia. This second decline is linked to the aridification of the Mediterranean entourage that started in the mid‐Holocene and has been enhanced by human modification of the landscape. The species is shown to be sensitive to climate change.

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Section: Changes In the Geographic Distribution Of Microtus Cabrerae mentioning

confidence: 97%

Documenting the biogeographic history ofMicrotus cabreraethrough its fossil record

Laplana

Sevilla²

2013

Mammal Review

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“…Indeed Valensi et al . () have found evidence for the use of such fuel in the Lazaret cave. The fire lasted 4 h 42 min.…”

Section: Methods To Model the Cave Palaeohearthsmentioning

confidence: 99%

“…Its entrance faces the southwest direction at 26 m above the present level of the Mediterranean Sea. During glacial periods it was situated 140 m above the sea level (Valensi et al ., ). This cave was occupied by Homo erectus between 130 and 190 ka (de Lumley et al ., ).…”

Section: Archaeological Contextmentioning

confidence: 97%

“…The cave is about 40 m long and 15 m wide, with a thick Pleistocene sediment section. A well dug under the entrance allows the observation of a 7‐m‐thick sequence of continental sediments enriched in archaeological material (Figure ; Valensi et al ., ). Systematic excavation of the cave proceeded by excavating thin horizontal layers that represent archaeological stratigraphic units (UA) and these were then correlated with data from the well.…”

Section: Archaeological Contextmentioning

confidence: 97%

“…On this surface a palaeohearth is evident on the southwest side of the Q11 square. During our surveys, archaeologists were excavating UA28 (no archaeological maps are available), stratigraphically below UA27, and corresponding to the upper C II stratigraphical complex dating from the last Middle Pleistocene (OIS 6 – 130 to 160 ka) glacial period (Figure ; Valensi et al ., ).…”

Section: Archaeological Contextmentioning

confidence: 97%

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Magnetic Investigations of Buried Palaeohearths Inside a Palaeolithic Cave (Lazaret, Nice, France)

Jrad

Quesnel

Rochette

et al. 2013

Archaeological Prospection

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International audienceWe present a magnetic study of palaeohearths within Lazaret cave (Nice, France) that demonstrates how to recognize fired structures in similar geological contexts. Using magnetic field and susceptibility mapping, excavated and potentially still-buried palaeohearths of the cave are investigated. Our study reveals some difficulties in conducting a magnetic field survey to detect combustion features in a cave due to noise and ambiguities in anomaly assignment. To overcome these difficulties, discrete measurements and a specific post-processing methodology were applied to remove the magnetic noise generated by surrounding artificial sources. In addition, experimental and numerical modelling constrained by laboratory examinations of the magnetic mineralogy were performed to better identify the magnetic imprint of such fireplaces. We confirm that a short-term fireplace produces a thin ash-bearing layer characterized by a high magnetic susceptibility and a high frequency dependence due to a large proportion of grains of pseudo-single-domain (PSD) size. Such a burnt soil layer is the main source of the ca. 50 nT amplitude magnetic field anomaly at a sensor height of 15cm observed over the excavated palaeohearth, as well as over an experimental hearth. Copyright (c) 2013 John Wiley & Sons, Ltd

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Dietary traits of the ungulates from the Middle Pleistocene sequence of Lazaret Cave: palaeoecological and archaeological implications

Rivals

Cohen²,

Desclaux

2023

Archaeol Anthropol Sci

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Dietary traits in ungulates from Lazaret Cave were analysed for possible changes in ecological niches throughout the marine isotopic stage (MIS) 6 sequence of the site and to investigate the duration of the occupations corresponding to the accumulation of ungulate remains by human groups. The analysis revealed changes in dietary diversity throughout the sequence related to the climatic and environmental changes of the MIS 6. These changes affected the availability of vegetal resources, competition among species, and the distribution and movement of the ungulates in the territory. Human groups were also affected by these changes, as the archaeological record of Lazaret Cave in the duration of occupations at the different levels shows. The response of the large mammal communities to persistent climatic instability is reflected in differences between the sites of southern France of the MIS 6, where species show different dietary traits.

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Cadre climatique et environnemental des acheuléens de la grotte du Lazaret, à Nice. Données paléontologiques, biogéochimiques et radiométriques établies sur les faunes de vertébrés et d’invertébrés

Cited by 13 publications

References 12 publications

Documenting the biogeographic history ofMicrotus cabreraethrough its fossil record

Documenting the biogeographic history ofMicrotus cabreraethrough its fossil record

Magnetic Investigations of Buried Palaeohearths Inside a Palaeolithic Cave (Lazaret, Nice, France)

Dietary traits of the ungulates from the Middle Pleistocene sequence of Lazaret Cave: palaeoecological and archaeological implications

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