SYNCHROTRON STUDIES OF BAN CHIANG ANCIENT POTTERY
Keywords:
Ban Chiang, Synchrotron, Firing temperature, XANES, X-ray absorption spectroscopy, FT-IRAbstract
The pottery shards excavated from the Ban Chiang archaeological site a UNESCO world heritage site, Thailand are well known for their distinctive red paint and exquisite designs. The pottery assemblages are found to span 3 periods: Pre-metal, Bronze, and Iron Ages. The aim of this research is to explore the firing techniques used for pottery production during these time spans. X-ray absorption spectroscopy carried out at Beam line 8 (BL-8) of the National Synchrotron Research Center (NSRC), Thailand was used to measure Fe2+ and Fe3+ distributions in the pottery. A range of other analytical techniques, including X-ray Diffraction (XRD), X-ray Fluorescence (XRF),Fourier Transform Infrared Spectroscopy (FT-IR), Differential Thermal Analysis (DTA), and Thermal Gravimetric Analysis (TGA) were also used to obtain the chemical compositions and information on changes in the thermal properties of the samples. The Fe K-edge absorption spectra of mixed standard iron compounds and the red clay ceramics fired under control conditions at various temperatures are used as a reference standard to determine the ferric/ferrous ratio in the pottery shards. Results revealed that all Ban Chiang pottery was likely fired under partial reducing conditions, but the firing temperature used was higher in the Pre-metal Age than those in the Bronze and Iron Ages.
References
Barilaro, D., Barone, G., Crupi, V., Majolino,D., Mazzoleni, P., Tigano, G., andVenuti, V. (2008). FT-IR absorbance spectroscopy to study Sicilian “Proto-Majolica” pottery. Vib. Spectrosc.,48:269-275.
Berry A.J., OíNeill, H.S., Jayasuriya, K.D.,Campbell, S.J., and Foran, G.J. (2003).XANES calibrations for the oxidation state of iron in a silicate glass. Am.Mineral., 88:967–977.
Bianconi, A. (1988). X-ray absorption, principles, applications, techniques ofEXAFS, SEXAFS and XANES. In:X-Ray Absorption. Koningsberger, D.C.and Prins, R. (eds.). John Wiley andSons, NY, USA, p. 573–662.
Bubpha, S. (2003). A comparative study of ceramic petrography from Ban Don Thong Chai and Ban Chiang. Bull. Indo/Pac. Pre. Hi., 23:15-18.
De Benedetto, G.E., Laviano, R., Sabbatini,L., and Zambonin, P.G. (2002). Infrared spectroscopy in the chemical and mineralogical characterization of ancient pottery. J. Cult. Herit., 3:177–186.
Glanzman, W.D. and Fleming, S.J. (1985).Ceramic technology at prehistoric BanChiang, Thailand: fabrication methods.MASCA Journal, 3:114-121.
Gorman, C.F. and Charoenwongsa, P. (1976).Ban Chiang: a mosaic of impressions from the first two years. Expedition,18(4):14-26.
Klysubun, W., Sombunchoo, P., Wongprachanukul,N., Tarawarakarn, P., Klinkhieo, S.,Chaiprapa, J., and Songsiriritthigul, P.(2007). Commissioning and performance of x-ray absorption spectroscopy Beamline at the Siam Photon Laboratory. Nucl.Instrum. Meth. A., 582:87–89.
Lamberti, C., Bordiga, S., Bonino, F.,Prestipino, C., Berlier, G., Capello, L.,D’Acapito, F., Llabrés i Xamena, F.X.,and Zecchina, A. (2003). Determination of the oxidation and coordination stateof copper on different Cu-based catalysis by XANES spectroscopy in situ or in operando conditions. Phys. Chem.Chem. Phys., 5:4502-4509.
Maritan, L., Mazzoli, C., Nodari, L., and Russo, U. (2005). Second Iron Age greypottery from Este (north-eastern Italy):study of provenance and technology.Appl. Clay Sci., 29:31–44.
Matsunaga, M. and Nakai, I. (2004). A studyof the firing technique of pottery fromKaman-Kalehöyük, Turkey, by synchrotron radiation-induced fluorescence x-ray absorption near-edge structure (XANES)analysis. Archaeometry, 46(1):103–114.
McGovern, P.E., Vernon, W.W., and White,J.C. (1985). Ceramic technology at prehistoric Ban Chiang, Thailand:physiochemical analyses. MASCAJournal, 3(4):104-113.
Meacham, W. and Solheim, W.G. (1980).Determination of the original firing temperature of ceramics from Non NokTha and Phimai, Thailand. Journal of the Siam Society Bangkok, 68(2):11-14.
Pantos, E., Tang, C.C., MacLean, E.J., Roberts,M.A., Murphy, B.M., Collins, S.P.,Cheung, K.C., Strange, R.W., Murphy,L.M., Papiz, M.Z., Girdwood, S.E.,Rizkallah, P.J., Clarke, D.T., Clark, G.F.,Tobin, M.J., Colston, S.L., Jupe, A.C.,Zhilin, M.G., Prag, K., and Prag,A.J.N.W. (2002). Applications of synchrotron radiation to archaeological ceramics. 5th European Meeting on Ancient Ceramics; Oct 18-20, 1999;Athens, Greece. In: Modern Trends in Scientific Studies on Ancient Ceramics.Kilikoglou, V., Hein, A., and Maniatis, Y. (eds.). BAR International Series,1011:377-384.
Pietrusewsky, P. and Douglas, M.T. (eds.).(2002). Ban Chiang, a prehistoric village site in northeast Thailand, I: The human skeletal remains. University of Pennsylvania Press, Philadelphia, PA, USA, p. 493.
Qin, G.Y. and Pan, X.J.(1989). Firing study ofterrocotta warriors and horses of theQin Dynasty (221 BC). Archaeometry,31(1):3–12.
Ravel, B. and Newville, M. (2005). ATHENA,ARTEMIS, HEPHAESTUS: Data analysis for x-ray absorption spectroscopy using IFEFFIT. J. Synchrotron Radiat.,12:537–541.
Shulman, R.G., Yafet, Y., Eisenberger, P., and Blumberg, W.E. (1976). Observationand interpretation of X-ray absorption edges in iron compounds and proteins.Proc. Natl. Acad. Sci. USA, 73:1384–1388.
Uda, M., Akiyoshi, K., and Nakamura, M. (1999).Characterization of ancient Chinese pottery decorated with a black pigment.Nucl. Instrum. Meth. B., 150:601-604.
Wagner, U., Gebhard, R., Murad, E., Grosse,G., Riederer, J., Shimada, I., andWagner, F.E. (1997). Formative ceramics from the Andes and their production: a Mössbauer study. Hyperfine Interact.,110:165–176.
Waychunas, G.A., Apted, M.J., and Brown,G.E.Jr. (1983). X-ray K-edge absorption spectra of Fe minerals and model compounds: near-edge structure. Phys.Chem. Miner., 10:1–9.
White, J.C., Vernon, W., Fleming, S.,Glanzman, W., Hancock, R., and Pelcin, A.(1991). Preliminary cultural implications from initial studies of the ceramic technology at Ban Chiang. Bull. IndoPac. Pre. Hi., 11:188-203.
Wilke, M., Farges, F., Petit, P.E, Brown, G.E.,and Martin, F. (2001). Oxidation state and coordination of Fe in minerals: AnFe K-XANES spectroscopic study. Am.Mineral., 86:714–730.
Wilke, M., Partzsch, G.M., Bernhardt, R., andLattard, D. (2005). Determination of the iron oxidation state in basaltic glasses using XANES at the K-edge. Chem.Geol., 220:143-161.
