Jurassic-Cretaceous continental deposits from Eastern Chenor, Pahang

A detailed sedimentological study has been carried out on the rock succession exposed at several road cuts along the road from Kampung Pejing to Kampung Lotong located in the east of Chenor, Pahang. The studied rock succession can be divided into four sedimentary facies, namely the sandstone with conglomerate lenses facies, the siltstone with minor sandstone facies, the thickly bedded sandstone facies and the interbedded sandstone with siltstone facies. The palaeoenvironments of deposition for each of the facies are described. It shows a close resemblance with the Mangkin Sandstone Formation in The Tembeling Group of Late Jurassic-Early Cretaceous age, which was interpreted to be deposited in an alluvial fan system. Abstrak: Kajian sedimentologi secara terperinci telah dijalankan terhadap jujukan batuan yang tersingkap di beberapa potongan jalan dari Kampung Pejing hingga Kampung Lotong yang terletak di bahagian timur Chenor, Pahang. Jujukan batuan yang dikaji dapat dibahagikan kepada empat fasies iaitu fasies batu pasir dengan kekanta konglomerat, fasies batu lodak dengan sedikit batu pasir, fasies batu pasir berpelapisan tebal dan fasies selang lapis batu pasir dengan batu lodak. Sekitaran pengendapan bagi setiap fasies diterangkan. Jujukan ini mempunyai persamaan yang jelas dengan Formasi Batu Pasir Mangkin dalam Kumpulan Tembeling berusia Jura-Kapur yang ditafsirkan telah terendap di sekitaran kipas aluvium.