GEOLOGY AND SEDIMENTOLOGY OF EAST FACE SOUTHERN GUNUNG SEMANGGOL, TAIPING TRANSECT II

The Semanggol Formation transect area along the eastern flank of Gunung Semanggol situated in Bukit Merah, Taiping is identified to be part of an outer shelf submarine canyon (50400m2) that has been deposited during Late Permian to Early Triassic. A detailed map and correlated sedimentary log has been carried out to assess the geology and sedimentology within the transect area. A range of sediment gravity-flow is identified, the main lithology observed are several repetition of sharp and erosive based, thickly bedded breccia and conglomerate sandstone, graded pebbly to coarse grained sandstone bed, siltstone and shale. An overall coarsening upward sequence is observed towards the younger rock strata. The depositional of submarine canyon of the study area is suggested to be influenced by the tectonic evolution of Peninsular Malaysia. The presence of igneous rock in another outcrop suggested that igneous intrusion in provenance caused basin uplift and subsequent erosion of clastic sediments to be redeposited as erosive canyon-fill conglomerates to coarse grained sandstone. Due to outcrop limitation within the transect area, the speculation whether the linear ridge formation of Gunung Semanggol as a result of granite emplacement across north Peninsular Malaysia is still unclear.