Luminescence dating of the Tanagra terracottas of the Louvre collections

• Autorzy: Zink A. , Porto E.
• Języki publikacji: EN

Abstrakty

EN

In connection with the exhibition Tanagra - Myth and Archaeology (Paris, 2003; Montreal, 2004), we investigated the authenticity of some 140 terracottas from the Louvre collections by luminescence dating (thermoluminescence and optically stimulated luminescence). For these terracottas being pieces from a collection, only the dose due to internal radioactivity could be derived from the direct measurement of the internal concentration of radioelements. To estimate the contribution of the external environment, we had to reconstruct the moisture content and the gamma dose rate. The moisture content was based on some indications about the site found in 19th century literature. We reconstructed the external dose rate received by the Tanagras from the ratio of the measured palaeodose to 2300 years. This result agrees well with a low radioactive soil known to be characteristic of the mainland Greece. Applying such values of the external dose rate to our Tanagra, we obtained an age distribution showing two maximums, one at 2300 š 400 years, the other at 150 š 50 years.

Słowa kluczowe

EN

luminescence dating; Tanagra; dose reconstruction

• Wydawca: De Gruyter
• Czasopismo: Geochronometria
• Rocznik: 2005
• Tom: Vol. 24
• Strony: 21--26
• Opis fizyczny: Bibliogr. 12 poz., rys., tab.

Twórcy

autor

Zink A.

• Centre de recherche et restauration des musées de France, Palais du Louvre - Porte des Lions, 14 quai François Mitterrand, 75001 Paris (France)

autor

Porto E.

• Centre de recherche et restauration des musées de France, Palais du Louvre - Porte des Lions, 14 quai François Mitterrand, 75001 Paris (France)

Bibliografia

• 1. Aitken M.J., 1985: Thermoluminescence Dating, Academic Press, London: 359 pp.
• 2. Becq J., 2003: 236 - Acteur en papposilène parodiant une tragé- dienne. (Actor as Papposilene parodying a tragic actress). In: Jeammet V., ed., Tanagra, Mythe et archéologie (Tanagra, Myth and Archaeology), RMN, Paris: 303 (in French).
• 3. Belle H., 1876: Voyage en Grece (Travel in Grece). In: Charton E., ed., Le tour du monde: nouveau journal des voyages (Around the world: new journal of travels), Hachette, Paris 32: 54-55 (in French).
• 4. Bouquillon A., Colinart S., Porto E. and Zink A., 2003:, Authenticité, matières et couleurs. Etude en laboratoire des Tanagré- Fig. 2. Probability density function of the age of our Tanagra set (dashed line), based on SAR-OSL measurements, taking 16% for moisture and 0.55±0.20 mGy/a for external gamma dose rate. The individual age (with 1s uncertainties) are plotted in increased order from bottom to top. 26 LUMINESC ENCE DATING OF THE TANAGRA... ennes du Louvre (Authenticity, maters and colors. Study in laboratory of the Tanagra-like terracotta of Louvre). In: Jeammet V., ed., Tanagra, Mythe et archéologie (Tanagra, Myth and Archaeology), RMN, Paris: 298 –301 (in French).
• 5. Bouquillon A., Porto E. and Zink A., in print: Tanagra, beauté et mensonge; recherche en laboratoire (Tanagra, beauty and lie; research in laboratory). In: Jeammet V., ed., De l’objet de collection à l’objet archéologique: statut et fonction des Tanagra (From collection’s object to archaeological’s object: statute and function of the Tanagras), Musée du Louvre éditions – Editions Picard, Paris (in French).
• 6. Castaing J., Girod M. and Zink A., 2004: Radiation background due to radioactivity in palaces and museums: influence on TL/ OSL dating. Journal of Cultural Heritage: 393-397.
• 7. Clouvas A., Xanthos S. and Antonopoulos-Domis M., 2001: Extended survey of indoor and outdoor terrestrial gamma radiation in Greek urban area by in-situ gamma spectrometry with a portable Ge detector. Radiation Protection Dosimetry 94: 233-246.
• 8. Goedicke C., 1994: Echtheitsprüfung an Tanagrafiguren nach der Thermolumineszenzmethode (Authenticity of Tanagra figurines based on thermoluminescence methode). In: Kriseleit I., Zimmer G., Cordelia J., eds, Bürgerwelten, hellenistische Tonfiguren und Nachschöpfungen in 19.Jh. (Middle-class worlds, hellenistic terracotta and recreation in 19th century), von Zabern, Mainz am Rhein: 77-81 (in German).
• 9. Paris – Montreal, 2003: Tanagra: mythe et archéologie (Tanagra, Myth and Archaeology). In: Violaine Jeammet, ed., Musée du Louvre, Paris, 15th September 2003- 5th January 2004, Musée des beaux-arts, Montréal, 5th February - 9th May 2004., Editions de la Réunion des Musées Nationaux: 336 pp. (in French).
• 10. Rayet O., 1875:, Les figurines de Tanagra au Louvre (Tanagra figurines of the Louvre). Gazette des Beaux-Arts 11: 297-314; 551- 558 (in French).
• 11. Zink A.J.C., 2002: Bayesian approach applied to authenticity testing by luminescence Archeologia e calcolatori 13: 211-216.
• 12. Zink A., Querre G. and Porto E., 2002: Automation of the chemical preparation for luminescence dating. LED2002, Book of Abstract: 206.