oa Stratigraphy of Permo-Triassic Limestone in Malay Peninsula and Thailand

A widespread distribution of Permo-Triassic limestones in Peninsular Malaysia and Thailand marks an extensive shallow marine deposition during this period. The Permian limestone occurs as a massive, highly fossiliferous with significant Fenestellidae and Fusulinidae, and partly dolomitized limestone. The Chuping Limestone (Early to Late Permian) that exposes in the Northwest Belt of the Malay Peninsula and offshore Langkawi represents the example of the youngest Palaeozoic carbonate sequence. The Kinta Limestone deposition that was initiated earlier during the Silurian has also been reported to be partially extended into the Early Permian in the Western Belt. Simultaneously, the Gua Musang Limestone was developed within the Central Belt. The Sumalayang Limestone of the Dohol Formation in Eastern Belt also contains fusulinids indicating a Middle Permian age. All these limestones are of equivalent age and well correlatable with the Ratburi Limestone in the south of Thailand, and also the Khao Plukmu Limestone in the west, Doi Chiang and Tron Limestones in the north, and Bang Phra and Khao Cha Kan Limestones in the eastern Gulf of Thailand.