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Geochemistry, geochronology, and tectonic setting of early Permian (~290 Ma) volcanic-hosted massive sulphide deposits of the Tasik Chini district, Peninsular Malaysia

Citation

Basril Iswadi Basori, M and Zaw, K and Meffre, S and Large, RR, Geochemistry, geochronology, and tectonic setting of early Permian (~290 Ma) volcanic-hosted massive sulphide deposits of the Tasik Chini district, Peninsular Malaysia, International Geology Review, 58, (8) pp. 929-948. ISSN 0020-6814 (2016) [Refereed Article]

Copyright Statement

Copyright 2016 Taylor & Francis

DOI: doi:10.1080/00206814.2015.1136798

Abstract

The age and nature of Permian volcanism and sulphide mineralization in Malaysia are poorly understood. The Tasik Chini district is located in the Central Belt of Peninsular Malaysia and hosts the Bukit Botol and Bukit Ketaya volcanic-hosted massive sulphide (VHMS) deposits. These deposits are hosted by felsic-dominated Permian felsic volcanics that are part of a mixed volcano-sedimentary rock succession. Four mineralization zones were identified in both deposits: (1) stringer sulphide/zone; (2) massive sulphide zone; (3) barite zone; and (4) Fe-Mn and Fe-Si zones. The stringer and massive sulphides generally define the lower mineralized zones, whereas the barite, Fe-Mn, and Fe-Si layers define the stratigraphically upper mineralized zones. The main sulphide phases are pyrite, chalcopyrite, sphalerite, rare galena, and trace Sn-, Au-, and Ag-bearing minerals, with the latter two confined to the massive sulphide and barite zones. Trace and rare earth element data for the host rhyodacite-rhyolite at both deposits are consistent with formation in a volcanic arc palaeotectonic setting. In comparison, the trace element data for Triassic volcanic and intrusive rocks from the Tasik Chini area have moderate to low high field strength element (HFSE) concentrations along with transitional (Zr/Y=47) to tholeiitic (Zr/Y=24) affinities, but have similar magmatic arc signatures. Laser ablation inductively coupled mass spectrometry (LA-ICP-MS) UPb zircon dating of rhyolites from the Bukit Botol deposit yields early Permian (2864 to 2923Ma) ages. Similarly, the zircon UPb age results for Bukit Ketaya rhyolites reveal early Permian (2862 to 2884Ma) ages. The differences in geochemical and geochronological results between the early Permian host and the later Triassic volcanic and intrusive rocks are likely due to tectonic progression from a volcanic arc environment to a collisional setting.

Item Details

Item Type:Refereed Article
Keywords:volcanic-hosted massive sulphides
Research Division:Earth Sciences
Research Group:Geology
Research Field:Tectonics
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Earth Sciences
Author:Zaw, K (Professor Khin Zaw)
Author:Meffre, S (Dr Sebastien Meffre)
Author:Large, RR (Professor Ross Large)
ID Code:109845
Year Published:2016
Funding Support:Australian Research Council (LP0453794)
Web of Science® Times Cited:1
Deposited By:CODES ARC
Deposited On:2016-07-04
Last Modified:2017-01-30
Downloads:0

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