Abstract
In Peninsular Malaysia, the Jurassic-Cretaceous sequences are represented by continental deposits in several isolated basins. Generally, the sequences are characterised by the fining upward sequences, comprising reddish brown to red siltstone, sandstone and conglomerate often interpreted as molasse sequences. In Sabah and Sarawak, the Jurassic-Cretaceous sequences are represented by the marine deposits comprising argillaceous, some arenaceous and calcareous rocks and associated chert, lava, and pyroclastics.
Highlights
In Peninsular Malaysia, the Jurassic-Cretaceous sequences are represented by the continental deposits that were deposited in several isolated basins throughout the country
The Jurassic-Cretaceous continental sequences distributed in Peninsular Malaysia are Saiong Formation, Kayu Hitam Formation, Berapit Formation, Tan Hain Formaton, Panau Formation, Koh Formation, Tembeling Group, Gagau Group, Gerek Sandstone, Bertangga Sandstone, Ma’okil Formation, Paloh formation, Lesong Sandstone, Ulu Endau Beds, Tebak Formation and Panti Formation
Among the Jurassic-Cretaceous sequences in Sabah is the Madai-Baturong Formation, whilst in Sarawak it is represented by the Kedadom Formation, Sejingkat Formation, Pedawan Formation, Serabang Formation, Bau Limestone and Sebangan Hornstone
Summary
In Peninsular Malaysia, the Jurassic-Cretaceous sequences are represented by the continental deposits that were deposited in several isolated basins throughout the country. The Jurassic-Cretaceous continental sequences distributed in Peninsular Malaysia are Saiong Formation, Kayu Hitam Formation, Berapit Formation, Tan Hain Formaton, Panau Formation, Koh Formation, Tembeling Group, Gagau Group, Gerek Sandstone, Bertangga Sandstone, Ma’okil Formation, Paloh formation, Lesong Sandstone, Ulu Endau Beds, Tebak Formation and Panti Formation. The sequences are distributed in the Western, Central and Eastern Belts of Peninsular Malaysia. In Sabah and Sarawak, the Jurassic-Cretaceous sequence is represented by the marine deposits comprising argillaceous, some arenaceous and calcareous rocks, and associated chert, lava, and pyroclastics. Among the Jurassic-Cretaceous sequences in Sabah is the Madai-Baturong Formation, whilst in Sarawak it is represented by the Kedadom Formation, Sejingkat Formation, Pedawan Formation, Serabang Formation, Bau Limestone and Sebangan Hornstone. Most of them are shallow marine shelf deposits except for the chert dominant Sejingkat Formation and part of the Serabang Formation and the Sebangan Hornstone which might be deposited in a deeper marine condition
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