oa Impressive Slump Structures in Permo-Carboniferous Limestone at Sg. Siput, Perak, Malaysia

Slump structures may be created by submarine sediment slides with a rotational mode of failure. The limestone hills in Sg. Siput display impressive slump structures, especially in the upper section of a sequence exposed in an abandoned quarry, near Bt. Kemuning, NW of the town of Sg Siput. The sequence is mainly dominated by thinly laminated dark grey mudstone to wackestone with occasional turbidite beds and is part of the Kinta Valley limestones which are relicts of thick Paleozoic carbonate deposits, mainly Carboniferous to Permian in age. Intense slumping is mainly observed in the upper part of the section, where it is enhanced by thin beds of light grey chert and of dark grey to black shaley limestone, interbedded with medium-grey micritic limestone.