Evolution of terra sigillata technolgy from Italy to Gaul through a multi-technique approach
Yoanna Leon
(1)
,
Philippe Sciau
(1)
,
Michel Passelac
(2)
,
Corinne Sanchez
(2)
,
Robert Sablayrolles
(3)
,
Philippe Goudeau
(4)
,
Nobumichi Tamura
(5)
1
CEMES -
Centre d'élaboration de matériaux et d'études structurales
2 ASM - Archéologie des Sociétés Méditerranéennes
3 TRACES - Travaux et recherches archéologiques sur les cultures, les espaces et les sociétés
4 PPrime [Poitiers] - Institut Pprime [UPR 3346]
5 ALS - Advanced Light Source [LBNL Berkeley]
2 ASM - Archéologie des Sociétés Méditerranéennes
3 TRACES - Travaux et recherches archéologiques sur les cultures, les espaces et les sociétés
4 PPrime [Poitiers] - Institut Pprime [UPR 3346]
5 ALS - Advanced Light Source [LBNL Berkeley]
Philippe Sciau
- Fonction : Auteur
- PersonId : 18600
- IdHAL : philippe-sciau
- IdRef : 033232261
Corinne Sanchez
- Fonction : Auteur
- PersonId : 9587
- IdHAL : corinne-sanchez
- ORCID : 0000-0001-7634-9493
- IdRef : 076924408
Résumé
To understand how the terra sigillata technology was transferred from Italy to Gaul, a large corpus of samples from various worskshops was studied by using standard laboratory techniques (Raman spectroscopy, SEM, electron microprobe analysis and colorimetry). Based on these results, a few representative samples were selected and investigated by synchrotron radiation at ALS on the 12.3.2 microdiffraction beamline. The beamline is very adapted to the crystallographic study of thin layers and allows us to determine precisely the mineral composition of the sigillata slips. The set of findings revealed significant differences between the Italic and Gallic slips, which suggest a modification in the manufacturing process. The transfer of the sigillata technique to Gaul is associated with an increase of the firing temperatures due to the use of more refractory clay. This change has no significant influence on their esthetic appearance (brilliance and color) but modify their mechanical properties, resulting in a stronger resistance for the Gallic slips. The implication of these results in archeological context is discussed. In particular, we will try to propose assumptions on the reason for the change in the manufacturing process.
Format du dépôt | Notice |
---|---|
Type de dépôt | Article dans une revue |
Résumé |
en
To understand how the terra sigillata technology was transferred from Italy to Gaul, a large corpus of samples from various worskshops was studied by using standard laboratory techniques (Raman spectroscopy, SEM, electron microprobe analysis and colorimetry). Based on these results, a few representative samples were selected and investigated by synchrotron radiation at ALS on the 12.3.2 microdiffraction beamline. The beamline is very adapted to the crystallographic study of thin layers and allows us to determine precisely the mineral composition of the sigillata slips. The set of findings revealed significant differences between the Italic and Gallic slips, which suggest a modification in the manufacturing process. The transfer of the sigillata technique to Gaul is associated with an increase of the firing temperatures due to the use of more refractory clay. This change has no significant influence on their esthetic appearance (brilliance and color) but modify their mechanical properties, resulting in a stronger resistance for the Gallic slips. The implication of these results in archeological context is discussed. In particular, we will try to propose assumptions on the reason for the change in the manufacturing process.
|
Titre |
en
Evolution of terra sigillata technolgy from Italy to Gaul through a multi-technique approach
|
Auteur(s) |
Yoanna Leon
1
, Philippe Sciau
1
, Michel Passelac
2
, Corinne Sanchez
2
, Robert Sablayrolles
3
, Philippe Goudeau
4
, Nobumichi Tamura
5
1
CEMES -
Centre d'élaboration de matériaux et d'études structurales
( 460 )
- 29 Rue Jeanne Marvig - BP 94347 31055 TOULOUSE CEDEX 4
- France
2
ASM -
Archéologie des Sociétés Méditerranéennes
( 86793 )
- Route de Mende
Université Paul Valéry-Montpellier 3
34199 MONTPELLIER Cedex
- France
3
TRACES -
Travaux et recherches archéologiques sur les cultures, les espaces et les sociétés
( 44675 )
- Maison de la Recherche, 5 allée Antonio Machado 31058 TOULOUSE Cedex 9
- France
4
PPrime [Poitiers] -
Institut Pprime [UPR 3346]
( 118112 )
- Institut PPRIME : Recherche et Ingénierie en Matériaux, Mécanique et Energétique
SP2MI Téléport 2
Boulevard Pierre et Marie Curie
BP 30179
86962 FUTUROSCOPE CEDEX
- France
5
ALS -
Advanced Light Source [LBNL Berkeley]
( 3333 )
- 1 Cyclotron Road, MS2-400, Berkeley, CA 94720 USA
- États-Unis
|
Langue du document |
Anglais
|
Page/Identifiant |
658-665
|
Nom de la revue |
|
Audience |
Internationale
|
Comité de lecture |
Oui
|
Vulgarisation |
Non
|
Numéro |
30
|
Date de publication |
2015
|
Collaboration/Projet |
|
Domaine(s) |
|
Projet(s) ANR |
|
Mots-clés |
en
Technology tran..., Terra sigillata, Microstructure ..., Slip
|
DOI | 10.1039/C4JA00367E |
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