The middle pleistocene site of la Noira at Brinay (Cher): morphosedimentary context, geochronology, archaeological datas
Le site pléistocène moyen de la Noira à Brinay (Cher, région Centre, France) : contexte morphosédimentaire, géochronologie et données archéologiques
Jackie Despriée
(1)
,
Pierre Voinchet
(2)
,
Gilles Courcimault
,
Jean-Jacques Bahain
(2)
,
Simon Puaud
,
Davinia Moreno
(3)
,
Yoann Chantreau
(4)
,
Hélène Tissoux
(5)
,
Xavier Gallet
(2)
,
Cécile Chapon Sao
(2)
,
Salah Abdessadok
(6)
,
Christophe Falguères
(2)
1
MNHN -
Muséum national d'Histoire naturelle
2 HNHP - Histoire naturelle de l'Homme préhistorique
3 CENIEH - Centro Nacional de Investigación sobre la Evolución Humana
4 Inrap - Institut national de recherches archéologiques préventives
5 BRGM - Bureau de Recherches Géologiques et Minières
6 HNHP - Histoire naturelle de l'Homme préhistorique
2 HNHP - Histoire naturelle de l'Homme préhistorique
3 CENIEH - Centro Nacional de Investigación sobre la Evolución Humana
4 Inrap - Institut national de recherches archéologiques préventives
5 BRGM - Bureau de Recherches Géologiques et Minières
6 HNHP - Histoire naturelle de l'Homme préhistorique
Pierre Voinchet
- Fonction : Auteur
- PersonId : 740573
- IdHAL : pierre-voinchet
- ORCID : 0000-0001-5875-9720
- IdRef : 07084044X
Gilles Courcimault
- Fonction : Auteur
Simon Puaud
- Fonction : Auteur
Christophe Falguères
- Fonction : Auteur
- PersonId : 738840
- IdHAL : christophe-falgueres
- ORCID : 0000-0003-0644-4852
- IdRef : 061174718
Résumé
Upstream of Vierzon city, the fossil fluvial system of the Cher River is composed of seven sandy alluvial formations, which include four stepped sheets deposited on the western slope of the valley and three formations stacked in the fault trough where the river is currently flowing. According to the available geochronological data (ESR on optically bleached quartz), these formations were deposited between 1 Ma and 60 ka. The Acheulian site of la Noira (Brinay, Cher) is located on the western slope, at the bottom of one of the terraces, "Les Fougeres Formation". At la Noira, the lowest Unit a, close to the valley side, is covered by the alluvial les Fougeres Formation and could correspond to the beginning of a glacial stage. Hominins collected there lacustrine millstone slabs embedded in soliflucted coarse deposits lying on the substrate (Unit a). The slab fragments they broke were shaped into handaxes or knapped to produce large flakes. Subsequently, Unit a and the associated workshops were overlain by colluvium, then partly cryoturbated before being overlapped by the thick fluvial sands of the les Fougeres Formation. This 6 m-thick formation at la Noira, is composed by a succession of three sand units (Units b, c, d) with unconformities covered by slope deposits or underlined by cryoturbation features and ice wedge pseudomorphs. According to ESR dates (mean weighted age: 665 +/- 55 ka), deposition took place during the beginning of MIS 16.
Format du dépôt | Notice |
---|---|
Type de dépôt | Article dans une revue |
Résumé |
en
Upstream of Vierzon city, the fossil fluvial system of the Cher River is composed of seven sandy alluvial formations, which include four stepped sheets deposited on the western slope of the valley and three formations stacked in the fault trough where the river is currently flowing. According to the available geochronological data (ESR on optically bleached quartz), these formations were deposited between 1 Ma and 60 ka. The Acheulian site of la Noira (Brinay, Cher) is located on the western slope, at the bottom of one of the terraces, "Les Fougeres Formation". At la Noira, the lowest Unit a, close to the valley side, is covered by the alluvial les Fougeres Formation and could correspond to the beginning of a glacial stage. Hominins collected there lacustrine millstone slabs embedded in soliflucted coarse deposits lying on the substrate (Unit a). The slab fragments they broke were shaped into handaxes or knapped to produce large flakes. Subsequently, Unit a and the associated workshops were overlain by colluvium, then partly cryoturbated before being overlapped by the thick fluvial sands of the les Fougeres Formation. This 6 m-thick formation at la Noira, is composed by a succession of three sand units (Units b, c, d) with unconformities covered by slope deposits or underlined by cryoturbation features and ice wedge pseudomorphs. According to ESR dates (mean weighted age: 665 +/- 55 ka), deposition took place during the beginning of MIS 16.
|
Titre |
en
The middle pleistocene site of la Noira at Brinay (Cher): morphosedimentary context, geochronology, archaeological datas
fr
Le site pléistocène moyen de la Noira à Brinay (Cher, région Centre, France) : contexte morphosédimentaire, géochronologie et données archéologiques
|
Auteur(s) |
Jackie Despriée
1
, Pierre Voinchet
2
, Gilles Courcimault
, Jean-Jacques Bahain
2
, Simon Puaud
, Davinia Moreno
3
, Yoann Chantreau
4
, Hélène Tissoux
5
, Xavier Gallet
2
, Cécile Chapon Sao
2
, Salah Abdessadok
6
, Christophe Falguères
2
1
MNHN -
Muséum national d'Histoire naturelle
( 7512 )
- 57, rue Cuvier - 75231 Paris Cedex 05
- France
2
HNHP -
Histoire naturelle de l'Homme préhistorique
( 121947 )
- Institut de Paléontologie Humaine - 1, rue René Panhard - 75013 Paris
- France
3
CENIEH -
Centro Nacional de Investigación sobre la Evolución Humana
( 464816 )
- Espagne
4
Inrap -
Institut national de recherches archéologiques préventives
( 301475 )
- 121 rue d'Alésia
75014 Paris
- France
5
BRGM -
Bureau de Recherches Géologiques et Minières
( 18404 )
- regroupe le site d'Orléans et l'ensemble des Directions régionales sous une seule et même affiliation. Ne pas décliner de sous-structures locales
- France
6
HNHP -
Histoire naturelle de l'Homme préhistorique
( 83660 )
- Institut de Paléontologie Humaine - 1 rue René Panhard - 75013 PARIS
- France
|
Nom de la revue |
|
Vulgarisation |
Non
|
Comité de lecture |
Oui
|
Audience |
Internationale
|
Page/Identifiant |
31-48
|
Langue du document |
Français
|
Date de publication |
2017-02-28
|
Numéro |
vol. 28/1
|
Domaine(s) |
|
DOI | 10.4000/quaternaire.7900 |
Loading...