Verre byzantin et islamiqueByzantine and Islamic Glass
Maria Mossakowska-Gaubert
FREESTONE, Ian C. ; LESLIE, Karen A. ; THIRLWALL, Matthew ; GORIN-ROSEN, Yael
Strontium Isotopes in the Investigation of Early Glass Production: Byzantine and Early Islamic Glass from the Near East
Archaeometry 45/1
University of Oxford, 2003, p. 19-32
http://onlinelibrary.wiley.com/journal/10.1111/%28ISSN%291475-4754/issues
[501, 1300]
• Preliminary remarks:
– 87Sr/86Sr ratios determined for glasses from four production sites, dated between the 6th and the 11th centuries: Bet Sheʿarim, Bet Eliʿezer, Banias, Ashmunein.
– Majority of the samples were chunks of raw glass.
• Chemical analyses: 87Sr/86Sr, Sr, SiO2, TiO2, Al2O3, FeO, MnO, MgO, CaO, Na2O, K2O, P2O5, Cl, SO3.
– Bet Eliʿezer:
primary glass workshop (byzantine - early islamic period): natron glass - glass low in magnesia, high in silica and low in soda [compositional group ‘Levantine II’ cf. Freestone, Greenwood, Gorin-Rosen 2002].
- marine shell-derived strontium (from the costal sand): 87Sr/86Sr ratios close to 0.7090 and high elemental strontium.
– Bet Sheʿarim:
- secondary glass workshop (6th-7th centuries A.D.): natron glass - low in magnesia, compositional group ‘Levantine I’ made using the Belus sand sources, or similar sand from the Levantine coast;
- marine shell-derived strontium (from the costal sand): 87Sr/86Sr ratios close to 0.7090 and high elemental strontium.
– Ashmunein:
- secondary and primary (?) glass workshop (8th-9th centuries A.D.): natron glass - low in magnesia, high in lime, low in alumina, compositional group ‘Egypt II’.
- limestone-derived strontium (from the inland sand): 87Sr/86Sr ratios close to 0.70794–0.70798 and low elemental strontium.
– Banias:
- primary glass workshop (between the 10th/11th and 13th centuries A.D.): plant-ash glass: high in magnesia, high in potash.
- limestone-derived stronium (from soils parental to the plants that were ashed to make the glass): 87Sr/86Sr ratios close to 0.70772–0.70780 and high elemental strontium.
• Stronium and its isotopes offer an approach to identifying both the raw materials and the origins of ancient glasses.
– 87Sr/86Sr ratios determined for glasses from four production sites, dated between the 6th and the 11th centuries: Bet Sheʿarim, Bet Eliʿezer, Banias, Ashmunein.
– Majority of the samples were chunks of raw glass.
• Chemical analyses: 87Sr/86Sr, Sr, SiO2, TiO2, Al2O3, FeO, MnO, MgO, CaO, Na2O, K2O, P2O5, Cl, SO3.
– Bet Eliʿezer:
primary glass workshop (byzantine - early islamic period): natron glass - glass low in magnesia, high in silica and low in soda [compositional group ‘Levantine II’ cf. Freestone, Greenwood, Gorin-Rosen 2002].
- marine shell-derived strontium (from the costal sand): 87Sr/86Sr ratios close to 0.7090 and high elemental strontium.
– Bet Sheʿarim:
- secondary glass workshop (6th-7th centuries A.D.): natron glass - low in magnesia, compositional group ‘Levantine I’ made using the Belus sand sources, or similar sand from the Levantine coast;
- marine shell-derived strontium (from the costal sand): 87Sr/86Sr ratios close to 0.7090 and high elemental strontium.
– Ashmunein:
- secondary and primary (?) glass workshop (8th-9th centuries A.D.): natron glass - low in magnesia, high in lime, low in alumina, compositional group ‘Egypt II’.
- limestone-derived strontium (from the inland sand): 87Sr/86Sr ratios close to 0.70794–0.70798 and low elemental strontium.
– Banias:
- primary glass workshop (between the 10th/11th and 13th centuries A.D.): plant-ash glass: high in magnesia, high in potash.
- limestone-derived stronium (from soils parental to the plants that were ashed to make the glass): 87Sr/86Sr ratios close to 0.70772–0.70780 and high elemental strontium.
• Stronium and its isotopes offer an approach to identifying both the raw materials and the origins of ancient glasses.
analyses chimiques chemical analyses bloc de verre brut lump of raw glass déchets de verre glass waste
| Egypte Egypt | Ashmounein Ashmunein | production | |
| Israël Israel | Banias | production | |
| Bet Eliʿezer (Hadera) | production | ||
| Bet Sheʾan (Nysa - Scythopolis) | production |
Version 5, données dudata date 30 janvier 2013January 30th 2013