Bulletin of the Geological Society of Malaysia, Volume 43, Dec. 1999, pp. 453 – 460
18 Allee de la Chapelle, 92140 Clamart, France
2Geological Survey of Malaysia, Jalan Sultan Azlan Shah, 31400 Ipoh, Perak, Malaysia
3Paleontologie, Sciences de la Terre, Universite de Lille, 59655 Villeneuve d‘Ascq cedex, France
Abstract: A limestone which has been uncovered during the extension of an oil palm plantation appears to be an important deposit. It is rich in relatively well preserved fossils although it out crops only 500 meters from a granite. The fossils are diverse and consist of common Tubiphytes, a few algae, calcispherids, smaller foraminifers, abundant fusulinaceans (including Levenella, Pamirina, Brevaxina, Chalaroschwagerina, Leeina, Toriyamaia, Laosella), calcareous sponges, a few bryozoans, brachiopods, bivalves, rare gastropods, ostracods and crinoids. They indicate a Late Cisuralian age (Yahtashian-Bolorian) and appear to belong to three biozones. The rocks of the area were previously considered to be Early Carboniferous in age. The limestone is commonly a packstone or a wackestone, very rarely a grainstone. Depositional environment was shallow marine. Dolomite is almost absent according to the study of thin sections and the results of chemical analyses.
In Terengganu State, north of Seri Bandi in the area of Sungai Patang (a small tributary of Sungai Tebak) about 86 km far from Kuantan and 119 km far from Kuala Terengganu, the extension of Ladang Ketengah Jaya (Ladang = Plantation) has led to the digging of trenches to drain the water away from a swampy area. As a result, a number of small limestone exposures have been unearthed at the bottom of the main and the feeder ditches, 1 to 3 meters below ground surface. These exposures are scattered in a surface of, at least, two hectares (Sheet 62 or Kerteh Sheet of the topographical map on the scale 1:63,360. Geographic coordinates of two samples from the newly uncovered exposures: 4°24‘09″N, 103°16‘46″E for sample 359; 4°24‘21″N, 103°16‘45″E for sample 350).
This newly uncovered limestone has been noticed by members of the Geological Survey of Malaysia, especially at the beginning by Tuan Hj. Mohd. Ros bin Abdul Manaf and Mr. Siew Meng Fai who collected samples and prepared thin sections of the limestone.