This study mainly deals with the occurrence of palynomorph assemblage in the Tertiary and younger sediments from Kuala Kangsar area which were mapped by previous workers. The Tertiary sediment is interpreted to be deposited in small isolated basins and can be found through drilling. As other Tertiary sediments in the Malay Peninsula, they are seldom exposed. The age of the sediment from Kuala Kangsar area is interpreted to be Tertiary as it has similarities in lithology and sedimentary structures as those from other areas such as Batu Arang, Selangor. Palynological information can be utilized in interpreting the age and sedimentary environment of this sediÂment. Several localities were chosen to be drilled to get samples for palynological study. These samples were processed and based on the normal palynological preparation technique. They were treated by hydrofluoric acid and nitric acid and followed by acetolysis for most of the samples to remove the cellulose. The observed palynomorph assemblage consists of younger age of pollen and spores (Quaternary-Recent). The dominant palynomorphs are those derived from shrub type plants (Ilex, Camnosperma, Gramineae and Palaquium) which normally dominating the river and swamp areas.
Kajian ini mengkhusus kepada kehadiran palinomorf dalam bantuan sedimen berusia Tertiar dan lebih muda di sekitar Kuala Kangsar yang telah dipetakan oleh pengkaji terdahulu. Batuan ini telah ditafsirkan terendap dalam lembangan-lembangan kecil yang dikenalpasti melalui penggerudian. Seperti batuan seusia ditempat-tempat lain di Semenanjung Malaysia, batuan sedimen Tertiar di sekitar Kuala Kangsar jarang tersingkap ke permukaan. Persamaan jenis litologi dan struktur sedimen dari lembangan lain seperti di Batu Arang, Selangor dijadikan asas dalam penentuan usia batuan di sini. Maklumat palinologi dapat digunakan dalam mentafsir usia dan sekitaran pengendapan batuan ini. Beberapa lokaliti telah dipilih dan dilakukan penggerudian untuk mendapatkan sampel bagi kajian palinologi. Kesemua sampel telah diproses mengikut teknik penyediaan sampel palinologi yang lazim iaitu menggunakan asid hidrofluorik dan asid nitrik serta kebanyakan sampel yang diproses telah melalui proses asetolisis untuk membersihkan daripada bahan-bahan selulos sebelum dibuatkan slaid. Himpunan palinomoif yang dikenalpasti daripada sampel yang dikaji merupakan palinomoif berusia muda (Kuaterner-Resen). Debunga yang paling dominan terdiri daripada debunga yang dihasilkan oleh tumbuhan renek (Hex, Camnosperma, Gramineae dan Palaquium) yang lazimnya tumbuh dipinggir paya dan sungai.
A detailed and comprehensive study that covers the aspects of facies and palinology has been carried out on the Nenering bed to determine its depositional history and age. Field evidence based on sedimentary logs of outcrop shows that the sediments have been deposited in a limited intermontane basin. Its sedimentary facies reveal that the sediments were derived from the adjacent older sedimentary rocks. The sediments were transported and deposited in the basin by ephemeral streams. Coarse-Âgrained facies are more dominant in the basin margin area whereby finer-grained facies are more concentrated along the basin axis. Vertical facies changes reveal that in the earlier stage of deposition the basin axis was dominated by finer-grained facies which was then succeeded by the coarserÂgrained sediments brought-in by ephemeral streams. Palynological avidence reveals that the deposition in the basin took place during the Late Cretaceous (? Aptian-Albian).
Lapisan Nenering yang dilaporkan sebelum ini telah dikaji dari aspek sedimentologi don polinologi secara menyelurnh. Bukti-bukti lapangan berdasarkan log turus sedimen pada keseluruhan singkapan mendapati unit batuan sedimen ini telah dimendapkan di dalam lembangan yang kecil yang wujud di antara pergunungan. Fasies sedimennya menunjukkan punca sedimen telah diterbitkan daripada batuan tua di sekitarya. Sedimen dimendapkan di dalam lembangan secara bermusim oleh sungai-sungai efemeral. Fasies berbutir kasar tertumpu ke bahagian tepian lembangan sementara bahagian tengah didominasi oleh sedimen butiran halus. Perubahan fasies secara menegak pula menunjukkan, pada awal pemendapan bahagian tengah lembangan dinominasi oleh sedimen berbutir halus dan kemudian berlaku kemasukan sedimen butiran kasar yang dibawa oleh sungai-sungai berkala. Bukti-bukti palinologi menunjukkan pemendapan sedimen di dalam Lembangan Nenering berlaku paling mungkin semasa Kapur Akhir (? Aptian-Albian).