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Important discovery of late Early Permian limestone in southern Terengganu, Peninsular Malaysia
Fontaine, H.; Bin Amnan, I.; Vachard, D. (1999). Important discovery of late Early Permian limestone in southern Terengganu, Peninsular Malaysia, in: Teh, G.H. (Ed.) GEOSEA `98 Proceedings: Ninth Regional Congress on Geology, Mineral and Energy Resources of Southeast Asia, 17th - 19th August 1998, Shangri-La Hotel, Kuala Lumpur, Malaysia. Bulletin of the Geological Society of Malaysia, Spec. Issue 43: pp. 453-460. https://dx.doi.org/10.7186/bgsm43199945
In: Teh, G.H. (Ed.) (1999). GEOSEA `98 Proceedings: Ninth Regional Congress on Geology, Mineral and Energy Resources of Southeast Asia, 17th - 19th August 1998, Shangri-La Hotel, Kuala Lumpur, Malaysia. Bulletin of the Geological Society of Malaysia, Spec. Issue 43. Geological Society of Malaysia: Kuala Lumpur. 698 pp.
In: Bulletin of the Geological Society of Malaysia. Geological Society of Malaysia: Kuala Lumpur. ISSN 0126-6187; e-ISSN 2637-109X
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Documenttype: Congresbijdrage
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| Auteurs | | Top |
- Fontaine, H.
- Bin Amnan, I.
- Vachard, D.
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| 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. |
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