Meng, C.C. and Pubellier, M. and Sautter, B. and Beg, M.A. (2021) Zircon U-Pb ages of the benom complex: Implications for a late triassic uplift event in Central Peninsular Malaysia. Bulletin of the Geological Society of Malaysia, 72. pp. 1-13. ISSN 01266187
Full text not available from this repository.Abstract
The Benom Complex, located in the Central Belt of Peninsular Malaysia, has recorded the dynamics of the orogeny with multiple igneous intrusions emplaced during the late tectono-magmatic stages of the Paleo-Tethys closure. Three new zircon U-Pb ages of igneous rocks from the Benom Complex reveal the crystallization of diorite and syenite (alkaline series) at 221.8±2.4 Ma and 226.6±3.5 Ma respectively, and granite (calc-alkaline series) at 207.2±2.0 Ma. The sedimentation of the Central Belt shifted from a marine to a terrestrial environment at the Middle-Late Triassic boundary, which marked the beginning of uplift due to the Sibumasu-Indochina collision. The emplacement of alkaline series of Benom Complex during the early Late Triassic (226.6 Ma to 221.8 Ma) are interpreted as related to a slab break off and mantle upwelling. Most of the Central Belt region has no records of sedimentation since the mid Late Triassic due to continuous uplift and/or erosion. The subsequent emplacement of the Gunung Benom granite (calc-alkaline series) took place at the end of the Triassic (207.2 Ma). The red bed deposition and the emplacement of the Benom Complex (together with S-type Main Range granite) result from a continuous Late Triassic orogenic uplift event in Peninsular Malaysia. © 2021 by the Author(s).
Item Type: | Article |
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Additional Information: | cited By 4 |
Depositing User: | Mr Ahmad Suhairi UTP |
Date Deposited: | 10 Nov 2023 03:28 |
Last Modified: | 10 Nov 2023 03:28 |
URI: | https://khub.utp.edu.my/scholars/id/eprint/14273 |