Abstract

• The study area is situated in the southeastern part of Kyaikmaraw Township, Mon State. It lies between latitude 16º 20' 30" N to 16º 23' 00" N and longitude 97º44' 42" E to 97º 47' 24" E of one inch topographic map no. 94H/15. The present research mainly emphasized only on the carbonate sedimentology of the Middle to Late Permian Moulmein Limestone. Kawkalut-Hnidon Hills are composed of micritic limestone, fossiliferous limestone, dolomitic limestone and crystalline limestone. It was measured about 175 m and 200 m in thicknesss in details for microfacies analysis and were recognized into six microfacies; algal wackestone to packstone, dolomitic mudstone, mudstone, microbial grainstone, peloidal grainstone and peloidal packstone. These microfacies were grouped into three microfacies associations which represent three different depositional environments such as supratidal, intertidal and subtidal environments. The sequence stratigraphic interpretation of the Kawkalut section line indicates that eight metre-scale fourth– order shallowing upward parasequence cycles and three, metre-scale fourth–order deepening upward parasequence cycles. In the global Permian sea level, the slow falling of sea level also representing to Middle to Late Permian time which superimpose by lower order smaller cycles.