Energy dispersive X-ray fluorescence analysis of ancient potteries from Vellore District Tamilnadu, India with statistical approach

In the present study concentration of trace elements in ancient potteries collected in Vellore Dist of Tamilnadu, India, was determined using ED-XRF technique. The analysed shreds are belong to the 18th century. Fourteen elements have been determined in 56 pottery fragments. These elemental concentrations were processed using multivariate statistical methods, principal component analysis and cluster analyses to determine similarities and correlation between the various samples. Chemical composition of examined shreds revealed the type of clay (Calcareous/Non-Calcareous). The statistical results revealed patterns of trade between these communities. The 56 shards had been classified into three major groups based on variations in composition.