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- W2503999434 abstract "Archaeological potteries belonging to 300 BC collected from Maligaimedu (11°48’Lat.N; 79°35’Long.E) Tamil Nadu, India were subjected to FTIR, XRD and Mossbauer spectroscopic studies in order to characterise the clay minerals associated, their origin and technology of firing adopted by artisans. To determine the firing temperature of the potteries and to find any phase change in magnetic minerals, the pottery samples were refired to different temperatures. From FTIR studies, it is observed that these pottery samples were made up of disordered kaolinite type clay with appreciable amount of iron with a firing temperature of about 800 °C. The minerals like quartz, anorthite, orthoclase and hematite were identified using XRD. No change in the Mossbauer parameters are observed in the case of sample MGM-2 during laboratory firing up to 800°C, which indicates that original firing temperature is above 800°C. Changes in the Mossbauer spectra of sample MGM-5 during laboratory firing reveal that the laboratory firing atmosphere differs from original firing atmosphere. The presence of Fe 2+ ion in as-received state spectra of black pottery (MGM-5) indicates that the sample was fired under reduced atmospheric condition during manufacturing. The colour of the potteries also reflects the above results." @default.
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- W2503999434 date "2007-01-01" @default.
- W2503999434 modified "2023-09-23" @default.
- W2503999434 title "FTIR and Mossbauer spectroscopy applied to the study of archaeological artefacts from Maligaimedu, Tamil Nadu, India" @default.
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