Abstract

• The research area, Kantha-Aungtharya area, lies in Thabeikkyin Township, Mandalay Region. The study area falls within the Mogok Metamorphic Belt, lying between Sagaing fault and Shan scarp. It is located about 6.5 km east of Thabeikkyin and 122 km north of Mandalay. Metasedimentary such as marbles and calc-silicate rocks and igneous rock (such as biotite microgranite) units are prominent in this study area. The relatively high Al2O3 and fairly high values of Fe3+and Fe2+in the calc-silicate rock could be due to (a) impurities containing iron in the sedimentary environment and (b) diffusion of ions from the igneous body. The original material from which the calc-silicates can be formed may be impure dolomitic limestone, marls and limestone.