193-211

Articles

• Palomar, Teresa
• Garcia-Heras, Manuel
• Sabio, Rafael
• Rincon, Jesus-maria
• Villegas, Maria-Angeles

This paper presents the results derived from an archaeometric study undertaken on glass samples from the Roman town of Augusta Emerita (Mιrida, Spain). The main goal of the research was to provide for the first time some compositional and technological insights into the glass finds unearthed in this town. Glass samples from different sites and chronology, either from inside or from outside the perimeter of the ancient town and from the first to the sixth century AD, were analyzed and characterized through optical microscopy (OM), scanning electron microscopy (SEM), energy dispersive X-ray microanalysis (EDS), X-ray fluorescence (XRF) spectrometry and VIS spectrophotometry. Resulting data indicated that all the samples studied were natron-based soda lime silicate glasses, even though two chronological and compositionally distinct groups were distinguished. One composed of Early Empire glasses and a second one composed of glasses from the fourth century AD onward, which was characterized by the presence of the so-called HIMT (high iron, manganese, and titanium) glasses. Comparison with coeval glasses suggested that Augusta Emerita shared the same trade glass circles than other contemporary Roman towns, within the frame of a secondary production scale. Finally, some outstanding differences connected to composition and chronology were found, since Late Roman glasses presented a higher and distinct degree of alteration than Early Empire ones.

• History and Archaeology

• Αρχαιολογία

Roman glass, Augusta Emerita, Archaeometry, Chemical composition, Degradation

Corresponding author: Teresa Palomar (teresa.palomar@cchs.csic.es), The authors acknowledge to the National Museum of Roman Art (Mιrida, Spain) and, especially, to its director Dr J.M. Αlvarez Martνnez, the facilities provided to accomplish this research. They also acknowledge partial funding of the programs Consolider Ingenio 2010 Ref. TCP CSD2007-00058 and Geomateriales Ref. S2009/Mat-1629, as well as professional support from Techno-Heritage (Network of Science and Technology for Heritage Conservation). T. Palomar acknowledges a pre-doctoral grant from the Spanish Ministry of Science and Innovation (MICINN).

1. Allen, D. (1998) Roman Glass in Britain, Shire Publications, Princes Risborough, Buckinghamshire.Arletti, R., Giordani, N. Tarpini, R. and Vezzalini, G. (2005) Archaeometrical analysis of ancient glass from western Emilia Romagna (Italy) belonging to the Imperian Age, in Annales du 16e Congrès de l'Association internationale pour l'histoire du Verre, 80-84, AIHV, Nottingham.Arletti, R., Vezzalini, G., Biaggio Simona, S. and Maselli Scotti, F. (2008) Archaeometrical studies of Roman Imperial Age glass from Canton Ticino. Archaeometry, vol. 50, No 4, 606-626.Caballero Zoreda, L. and Ulbert, T. (1976) la basílica paleocristiana de Casa herrera en las cercanías de Mérida (Badajoz), Excavaciones Arqueológicas en España. Ministerio de Educación y Ciencia, Madrid.Caldera de Castro, M.P. (1983). El vidrio romano emeritense. in Augusta emerita i. excavaciones arqueológicas en españa, Ministerio de Cultura. Dirección General de Bellas Artes y Archivos, Madrid.Carmona, N., Villegas, M.Á., Castellanos, M.A., Montero Ruiz, I. and García-Heras, M. (2008). Análisis de vidrios romanos del yacimiento de la Dehesa de la Oliva (Patones, Madrid). In Actas Vii Congreso ibérico de Arqueometría (Madrid, 8-10 octubre 2007), Madrid.Carmona, N., Villegas, M.A., Jiménez, P., Navarro, J. and García-Heras, M. (2009) Islamic glasses from Al-Andalus. Characterisation of materials from a Murcian workshop (12th century AD, Spain). Journal of Cultural heritage, vol. 10, No 3, 439-445.Domenech-Carbo, M.T., Domenech-Carbo, A., Osete-Cortina, L. and Sauri-Peris, M.C. (2006) A study on corrosion processes of archaeological glass from the Valencian Region (Spain) and its consolidation treatment. Microchimica Acta, vol. 154, No 1-2, 123-142.Dominguez-Bella, S. and Jurado-Fresnadillo, G. (2004) Análisis arqueométrico de los vidrios romanos de la Casa del Obispo (Cádiz). Avances en Arqueometría: 2003, 129-137.Férnandez Navarro, J.M. (2003) el vidrio, 3rd. edition, Consejo Superior de Investigaciones Científicas, Madrid.Fleming, S.J. (1999) roman Glass: reflections on Cultural Change, University of Pennsylvania. Museum of Archaeology and Anthropology, Philadelphia.Foy, D., Vichy, M. and Picon, M. (2000) Lingots de verre en Méditerranée occidentale, in Annales du 14e Congrès de l'Association internationale pour l'histoire du Verre, 51-57, AIHV, Amsterdam.Freestone, I.C. (1994) Chemical analysis of 'raw' glass fragments, in Excavations at Crathage, volume II, The Circular Harbour, north side (ed. H.R. Hurst), 290, Oxford University Press for the British Academy, Oxford.Freestone, I.C. (2005) The provenance of ancient glass through compositional analysis. in Materials issues in Art and Archaeology Vii, Boston.Freestone, I.C. (2006) Glass production in late Antiquity and the early islamic period: a geochemical perspective, Geological Society of London. Special Publications, London.Freestone, I.C., Ponting, M. and Hughes, M.J. (2002) The origins of Byzantine glass from Maroni Petrera, Cyprus. Archaeometry, vol. 44, No 2, 257-272.Freestone, I.C., Wolf, S. and Thirlwall, M. (2005) The production of HIMT glass: elemental and isotopic evidence, in Annales du 16e Congrès de l'Association internationale pour l'histoire du Verre, 153-157, AIHV, Nottingham.Garcia-Heras, M., Sánchez de Prado, M.D., Carmona, N., Tendero, M., Ronda, A.M. and Villegas, M.A. (2007) Analytical study of Roman glasses from Southeastern Spain. Archaeologia Polona, vol. 45, 63-78.García Sandoval, E. (1966) informe sobre las casas romanas de Mérida y excavaciones en la "Casa del Anfiteatro", Excavaciones arqueológicas en España. Ministerio de Educación y Ciencia, Madrid.Gómez-Tubío, B., Ontalba Salamanca, M.Á., Ortega-Feliu, I., Respaldiza, M.Á., Amores Carredano, F. and González-Acuña, D. (2006) PIXE-PIGE analysis of late roman glass fragments. Nuclear instruments and Methods in Physics research section B: Beam interactions with Materials and Atoms, vol. 249, No 1-2, 616-621.Isings, C. (1957) roman glass from dated finds, Archaeologica Traiectina, Groningen and Djakarta.Jackson, C.M., Cool, H.E.M. and Wager, E.C.W. (1998) The manufacture of glass in Roman York. Journal of Glass studies, vol. 40, 55-61.Lang, J. and Price, J. (1975) Iron Tubes from a Late Roman Glassmaking site at Mérida (Badajoz), in Spain. Journal of Archaeological science, vol. 2, No 4, 289-296.Liritzis Y., Salter C. and Hatcher H. (1997) Chemical Composition of some Greco-Roman glass fragments from Patras, Greece. european journal of PACT, No 45, I2, 25-34McKenzie, R.M. (1980) The adsorption of lead and other heavy metals on oxides of manganese and iron. Australian Journal of soil research, vol. 18, No 1, 61-73.Mirti, P., Casoli, A. and Appolonia, L. (1993) Scientific analysis of Roman glass from Augusta Praetoria. Archaeometry, Vol. 35, No 2, 225-240.Paynter, S. (2006) Analyses of colourless Roman glass from Binchester, County Durham. Journal of Archaeological science, vol. 33, No 8, 1037-1057.Ramón Peris, M.A. (2002-2003) Estudio del vidrio hallado en la villa rústica romana de l'Hort de Pepica (Catarroja, Valencia). Quaderns de prehistòria i arqueologia de Castelló, vol. 23, 261-286.Rincón, J.M. (1984) Análisis y microestructura de vidrios romanos de Mérida y Segóbriga. revista de Arqueología, vol. 43, 34-39.Silvestri, A., Molin, G. and Salviulo, G. (2005) Roman and Medieval glass from the Italian area: Bulk characterization and relationships with production technologies. Archaeometry, vol. 47, No 4, 797-816.Stern, E.M. (1999) Roman glassblowing in a cultural context. American Journal of Archaeology, vol. 103, No 3, 441-484.Vigil Pascual, M. (1969) el vidrio en el mundo antiguo, Instituto Español de Arqueología. Consejo Superior de Investigaciones Científicas, Madrid.Wedepohl, K.H. and Baumann, A. (2000) The use of marine molluscan shells for Roman glass and local raw glass production in the Eifel area (western Germany). Naturwissenschaften, vol. 87, 129-132