Paléosols interglaciaires des grèzes de Beaumont et d'Echoisy (Charente)

Ducloux, J.; Dupuis, Jean‐Marc; Guillien, Yves; Puisségur, Jean Jacques

doi:10.3406/quate.1970.1154

Cited by 3 publications

(2 citation statements)

References 2 publications

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“…Other sections of slope deposits located in Charente on Jurassic limestone show palaeosols that were mentioned by Dewolf and Guillien (1962), Guillien (1965), Ducloux et al (1970), Ducloux (1972), Ozouf (1983) and Ozouf et al (1995) and were attributed to interglacial or interstadial periods. However, the palaeosols have not been precisely described and analysed, except by Ducloux (1972) and Ducloux et al (1970). Guillien and Puisségur (1969) also reported on the malacological fauna found in palaeosols, which was either typical of temperate forests or colder steppe-like environments.…”

Section: Palaeosolsmentioning

confidence: 80%

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Last Interglacial–Glacial sequence of palaeosols and calcareous slope deposits at Verteuil (Charente, southwest France)

Puyrigaud,

Bertran,

Lebrun

et al. 2023

J Quaternary Science

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The 12 m thick sequence of calcareous slope deposits and palaeosols exposed in a quarry at Verteuil (southwest France) has been studied and dated by optically stimulated luminescence. Emphasis was given to the identification and characterisation of palaeosols through geochemistry and micromorphology. The main clastic units, separated by major unconformities, were dated to MIS 6, MIS 5–4 and MIS 3–2. Stratified deposits (‘grèzes litées’), consisting of alternating diamictic and matrix‐free clastic beds and attributed to stacked stone‐banked solifluction lobes, developed mainly after ca. 40 ka, i.e. during late MIS 3 and MIS 2. MIS 3 is recorded as a palaeosol complex including two humic A horizons overlying a chromic cambisol associated with burrows of ground squirrels, while MIS 5 corresponds to a reworked rubified chromic cambisol. Overall, this sequence shows similarities with the clastic deposits found in regional cave porches and rock shelters, strongly suggesting that anthropogenic activities did not significantly modify the climate‐driven sedimentary and soil‐forming processes at the Palaeolithic sites.

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Section: Palaeosolsmentioning

confidence: 80%

“…In the Vars‐Beaumont and Echoisy quarries (Fig. 1), Ducloux et al (1970) described rubified palaeosols (2.5YR to 5YR), characterised by incomplete decalcification, clay formation and well‐crystallised goethite. These palaeosols, related to the Eemian interglacial, are considered close to Mediterranean red soils ( cf .…”

Section: Discussionmentioning

confidence: 99%

Last Interglacial–Glacial sequence of palaeosols and calcareous slope deposits at Verteuil (Charente, southwest France)

Puyrigaud,

Bertran,

Lebrun

et al. 2023

J Quaternary Science

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Analyse chimique de remplissages quaternaires

Tensorer¹

1972

quate

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The chemical analysis of quaternary deposits allows us to bring extra information and to make more exhaustive the various and usual sediment ologic analyses. The techniques which are used in order to extract the chemical elements are simple and easily earned out. The study of the variation of the amount of iron, manganese, aluminium, silicon, calcium, magnesium, sodium and potassium of the different levels of a prehistoric site may provide many information as regards the conditions under which a level has been formed (paleoclimatology). This method, when applied to two different materialized examples, proved to be of a great use and allowed us to suggest a paleoclimatic interpretation of the Würm III in the area of Gavaudun (Lot-et-Garonne).

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Etude micromorphologique des paléosols du haut niveau des alluvions du Lay à Mareuil (Vendée)

Ducloux¹

1973

quate

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Paléosols interglaciaires des grèzes de Beaumont et d'Echoisy (Charente)

Cited by 3 publications

References 2 publications

Last Interglacial–Glacial sequence of palaeosols and calcareous slope deposits at Verteuil (Charente, southwest France)

Last Interglacial–Glacial sequence of palaeosols and calcareous slope deposits at Verteuil (Charente, southwest France)

Analyse chimique de remplissages quaternaires

Etude micromorphologique des paléosols du haut niveau des alluvions du Lay à Mareuil (Vendée)

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