Transitional I S type characteristic in the Main Range Granite,Peninsular Malaysia |
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| Institution: | 1. Department of Civil Engineering, Birjand University of Technology, Birjand, Iran;2. Istanbul University, Engineering Faculty, Department of Geological Engineering, Avc?lar, 34320 Istanbul, Turkey;3. Hacettepe University, Engineering Faculty, Department of Geological Engineering, Ankara, Turkey;4. Department of Geotechnics and Transportation, Faculty of Civil Engineering, Universiti Teknologi Malaysia, (UTM), Skudai 81310, Johor, Malaysia;1. Department of Earth Sciences, University of Oxford, Oxford OX1 3AN, United Kingdom;2. Department of Geological Sciences, Chiang Mai University, Thailand;3. PPT Exploration and Production, Vibhavadi-Rangsit Road, soi 11, Bangkok 10900, Thailand;4. Department of Earth Sciences, University of St Andrews, North Street, St Andrews KY16 9AL, United Kingdom;5. Swedish Museum of Natural History, and Nordic Center for Earth Evolution, Box 50007, SE-104 05 Stockholm, Sweden;6. Centre for Exploration Targeting – Curtin Node, Department of Applied Geology, Western Australian School of Mines, Curtin University, Perth, WA 6845, Australia;7. NERC Isotope Geosciences Laboratory, British Geological Survey, Keyworth, Nottingham NG12 5GG, United Kingdom;8. Department of Geology, Mandalay University, Mandalay, Myanmar;1. Centre for Exploration Targeting – Curtin Node, School of Earth and Planetary Sciences, Curtin University, Perth, WA 6102, Australia;2. The Institute for Geoscience Research (TIGeR), School of Earth and Planetary Sciences, Curtin University, GPO Box U1987, Perth, WA 6845, Australia;3. Australian Research Council Centre of Excellence for Core to Crust Fluid Systems, Australia;4. Department of Earth Sciences, University of Oxford, Oxford OX1 3AN, United Kingdom;5. Department of Geological Sciences, Chiang Mai University, Thailand;6. Swedish Museum of Natural History, Box 50007, SE-104 05 Stockholm, Sweden;7. NERC Isotope Geosciences Laboratory, British Geological Survey, Keyworth, Nottingham NG12 5GG, United Kingdom |
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| Abstract: | The dominantly Triassic Main Range Granite of Peninsular Malaysia that occurs west of the Paleo-Tethyan Bentong–Raub suture zone was regarded exclusively as an S-type granite. The Main Range dominantly biotite granites are of batholithic proportion and host one of the world’s largest tin provinces. The S-type characteristics include high initial 87Sr/86Sr isotope ratios (>0.710), a narrow range in silica, presence of ilmenite and occasional cordierite and andalusite, and the presence of pelitic or quartzose meta-sedimentary xenoliths. However, the present review shows that the Main Range Granites also have many features that are more characteristic of I-type granites such as the very large scale of plutonism, the presence of primary titanite and amphibole, occurrence of hornblende-bearing mafic enclaves, increasing peraluminosity towards the more differentiated end-members of the suite and decreasing P2O5 with increasing SiO2 contents. The moderately peraluminous nature of the bulk Main Range Granite, without containing cordierite, Fe–Mg garnet or sillimanite, is consistent with derivation from a meta-sedimentary protolith that was itself undersaturated with respect to Al2SiO5. |
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| Keywords: | S-type granite Peninsular Malaysia Main Range Granite Tin granite Crustal thickening |
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