Staff View: Absolute age evidence of Early to Middle Ordovician volcanism in Peninsular Malaysia

Absolute age evidence of Early to Middle Ordovician volcanism in Peninsular Malaysia

Evidence of Early Palaeozoic volcanism in Peninsular Malaysia is largely represented by felsic Gerik- Dinding meta-volcanic rocks; however, reliable absolute ages for the meta-volcanic rocks are still lacking. This restricts correlation of these meta-volcanic rocks with other Early Palaeozoic East G...

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Main Authors:	Quek, Long Xiang, Ghani, Azman Abd, Lai, Yu Ming, Lee, Hao Yang, Saidin, Mokhtar, Roselee, Muhammad Hatta, Badruldin, Muhammad Hafifi, Hassan, Meor Hakif Amir, Abdul Aziz, Jasmi Hafiz, Ng, Tham Fatt, Ali, Muhammad Afiq Muhammad, Zulkifley, Mohamad Tarmizi Mohamad
Format:	Article
Published:	Indian Academy of Sciences 2018
Subjects:	Q Science (General) QE Geology
Online Access:	http://eprints.um.edu.my/21000/ https://www.currentscience.ac.in/Volumes/115/12/2291.pdf
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spelling	my.um.eprints.210002019-04-18T05:07:10Z http://eprints.um.edu.my/21000/ Absolute age evidence of Early to Middle Ordovician volcanism in Peninsular Malaysia Quek, Long Xiang Ghani, Azman Abd Lai, Yu Ming Lee, Hao Yang Saidin, Mokhtar Roselee, Muhammad Hatta Badruldin, Muhammad Hafifi Hassan, Meor Hakif Amir Abdul Aziz, Jasmi Hafiz Ng, Tham Fatt Ali, Muhammad Afiq Muhammad Zulkifley, Mohamad Tarmizi Mohamad Q Science (General) QE Geology Evidence of Early Palaeozoic volcanism in Peninsular Malaysia is largely represented by felsic Gerik- Dinding meta-volcanic rocks; however, reliable absolute ages for the meta-volcanic rocks are still lacking. This restricts correlation of these meta-volcanic rocks with other Early Palaeozoic East Gondwana Proto- Tethys margin tectonic elements identified in the evolution of Southeast Asia. Here, we report petrographic data and zircon U-Pb age of the Gerik-Dinding metavolcanic rocks. Zircons from three Gerik-Dinding meta-volcanic rock samples yield Early to Middle Ordovician weighted mean 206Pb/238U ages between 480 and 460 Ma. The formation age of the meta-volcanic rocks coincides with the post-collision stage from the final amalgamation of Asian micro-continental fragments with the East Gondwana Proto-Tethys margin. Tectonic processes such as lithospheric delamination during the post-collision period could have induced the hot asthenosphere to underplate the continental crust and trigger crustal anatexis. With these findings, the Early Palaeozoic tectonic history of Peninsular Malaysia needs careful review. Indian Academy of Sciences 2018 Article PeerReviewed Quek, Long Xiang and Ghani, Azman Abd and Lai, Yu Ming and Lee, Hao Yang and Saidin, Mokhtar and Roselee, Muhammad Hatta and Badruldin, Muhammad Hafifi and Hassan, Meor Hakif Amir and Abdul Aziz, Jasmi Hafiz and Ng, Tham Fatt and Ali, Muhammad Afiq Muhammad and Zulkifley, Mohamad Tarmizi Mohamad (2018) Absolute age evidence of Early to Middle Ordovician volcanism in Peninsular Malaysia. Current Science, 115 (12). pp. 2291-2296. ISSN 0011-3891 https://www.currentscience.ac.in/Volumes/115/12/2291.pdf doi:10.18520/cs/v115/i12/2291-2296
institution	Universiti Malaya
building	UM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Malaya
content_source	UM Research Repository
url_provider	http://eprints.um.edu.my/
topic	Q Science (General) QE Geology
spellingShingle	Q Science (General) QE Geology Quek, Long Xiang Ghani, Azman Abd Lai, Yu Ming Lee, Hao Yang Saidin, Mokhtar Roselee, Muhammad Hatta Badruldin, Muhammad Hafifi Hassan, Meor Hakif Amir Abdul Aziz, Jasmi Hafiz Ng, Tham Fatt Ali, Muhammad Afiq Muhammad Zulkifley, Mohamad Tarmizi Mohamad Absolute age evidence of Early to Middle Ordovician volcanism in Peninsular Malaysia
description	Evidence of Early Palaeozoic volcanism in Peninsular Malaysia is largely represented by felsic Gerik- Dinding meta-volcanic rocks; however, reliable absolute ages for the meta-volcanic rocks are still lacking. This restricts correlation of these meta-volcanic rocks with other Early Palaeozoic East Gondwana Proto- Tethys margin tectonic elements identified in the evolution of Southeast Asia. Here, we report petrographic data and zircon U-Pb age of the Gerik-Dinding metavolcanic rocks. Zircons from three Gerik-Dinding meta-volcanic rock samples yield Early to Middle Ordovician weighted mean 206Pb/238U ages between 480 and 460 Ma. The formation age of the meta-volcanic rocks coincides with the post-collision stage from the final amalgamation of Asian micro-continental fragments with the East Gondwana Proto-Tethys margin. Tectonic processes such as lithospheric delamination during the post-collision period could have induced the hot asthenosphere to underplate the continental crust and trigger crustal anatexis. With these findings, the Early Palaeozoic tectonic history of Peninsular Malaysia needs careful review.
format	Article
author	Quek, Long Xiang Ghani, Azman Abd Lai, Yu Ming Lee, Hao Yang Saidin, Mokhtar Roselee, Muhammad Hatta Badruldin, Muhammad Hafifi Hassan, Meor Hakif Amir Abdul Aziz, Jasmi Hafiz Ng, Tham Fatt Ali, Muhammad Afiq Muhammad Zulkifley, Mohamad Tarmizi Mohamad
author_facet	Quek, Long Xiang Ghani, Azman Abd Lai, Yu Ming Lee, Hao Yang Saidin, Mokhtar Roselee, Muhammad Hatta Badruldin, Muhammad Hafifi Hassan, Meor Hakif Amir Abdul Aziz, Jasmi Hafiz Ng, Tham Fatt Ali, Muhammad Afiq Muhammad Zulkifley, Mohamad Tarmizi Mohamad
author_sort	Quek, Long Xiang
title	Absolute age evidence of Early to Middle Ordovician volcanism in Peninsular Malaysia
title_short	Absolute age evidence of Early to Middle Ordovician volcanism in Peninsular Malaysia
title_full	Absolute age evidence of Early to Middle Ordovician volcanism in Peninsular Malaysia
title_fullStr	Absolute age evidence of Early to Middle Ordovician volcanism in Peninsular Malaysia
title_full_unstemmed	Absolute age evidence of Early to Middle Ordovician volcanism in Peninsular Malaysia
title_sort	absolute age evidence of early to middle ordovician volcanism in peninsular malaysia
publisher	Indian Academy of Sciences
publishDate	2018
url	http://eprints.um.edu.my/21000/ https://www.currentscience.ac.in/Volumes/115/12/2291.pdf
_version_	1643691437484670976
score	13.211869

Absolute age evidence of Early to Middle Ordovician volcanism in Peninsular Malaysia

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