Othman A.R.,Jabatan Mineral dan Geosains Malaysia |
Othman A.R.,Institute Alam Sekitar dan Pembangunan LESTARI |
Leman M.S.,Institute Alam Sekitar dan Pembangunan LESTARI |
Leman M.S.,National University of Malaysia
Bulletin of the Geological Society of Malaysia | Year: 2010
Some 13 species of Middle Triassic ammonoid fossils were discovered from two outcrops of sedimentary rocks belonging to the Telong Formation. The outcrops are located within the Felda Aring 5, along the road connecting Gua Musang Town and Kuala Berang. These two localities contained two ammonoid assemblages that are correlatable with the Standard Ammonoid Zone of the Tethyan region. Locality QZ480 contains four ammonoid species i.e. Balatonites cf. B. balatonicus, Danubites kansa, Kellnerites samneuensis, Hollandites sp. and Acrocordiceras sp., while locality QZ467 contains eight species i.e. Frankites regoledanus, Frankites apertus, Celtites epolensis, Clionitites sp., Protrachyceras costulatum, Anolcites sp., Joannites sp. and Megaphyllites jarbas. Biostratigraphically, ammonoid assemblage of locality QZ480 characterize the middle Anisian Balatonicus Subzone of Balatonites Zone while those of locality QZ467 characterize the late Ladinian Regoledanus Subzone of Protrachyceras Zone. Based on correlation, the results support the idea that the study area which can be correlated to the Triassic Lampang-Phrae Basin located on the Sukhorthai Terrain of Shan-Thai Block, belonging to the Cathaysian domain. The ammonoid assemblages pose a high scientific heritage value, particularly in their role as good age indicators for the Triassic.
Early Permian (Sakmarian) radiolarian from a new outcrop at Pos Blau, Ulu Kelantan and their significance [Radiolaria berusia Perm Awal (Sakmarian) dari singkapan baru di Pos Blau, Ulu Kelantan dan kepentingannya]
Dzulkafli M.A.,Institute Alam Sekitar dan Pembangunan LESTARI |
Jasin B.,National University of Malaysia |
Shafeea Leman M.,Institute Alam Sekitar dan Pembangunan LESTARI |
Shafeea Leman M.,National University of Malaysia
Bulletin of the Geological Society of Malaysia | Year: 2012
Early Permian(Sakmarian) radiolarian were discovered from chert beds from a new outcrop at Pos Blau, Ulu Kelantan. Seventeen chert samples were collected, thirteen of which yielded fairly well preserved radiolarian fossils. A total of twenty eight species were identified belonging to thirteen genera from seven families. Two radiolarian assemblage zones were identified i.e. Pseudoalbaillella lomentaria Assemblage Zone indicative of Early Sakmarian age and Pseudoalbaillella scalprata m. rhombothoracata Assemblage Zone represents Late Sakmarian age. The radiolarian cherts are interbedded with shale and is interpreted as a chert-shale association or continental margin chert association. This association shows that the radiolarian chert was deposited in an environment close to continental margin.