Abstract

• NwalaboTaung is located 4.5 km northeast of Paung in Mon State and it lies on Yangon -Mawlamyine car road. The study area is principally composed of granitoid rocks, viz, foliated porphyritic biotite granite, porphyritic biotite granite, gneissose granite, biotite microgranite and tourmaline granite. Biotite microgranite and tourmaline granite occur as small stocks. Microgranite, pegmatite and schorl rocks are found as dykes and aplite and quartzofelspathic veins are also observed. Microdioritic xenoliths are also recognized in this area. Granitoid rocks intruded Taungnyo Formation and Martaban Beds. In this area, old local worksites of tin and tungsten are found at the place about 2.5 km north of Natkyigyaung village. Minor amounts of stibnite and pyrite occur in the northeastern part of the study area. Beside Banbwegon quarry, eastern and western Yetagon quarries near Sinywa yield huge quantity of porphyritic biotite granite for extraction of high quality dimension slabs as well as construction and road materials.