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Origin of two types of rhyolites in the Tarim Large Igneous Province: Consequences of incubation and melting of a mantle plume

Liu, Hai-Quan; Xu, Yi-Gang; Tian, Wei; Zhong, Yu-Ting; Mundil, Roland; Li, Xian-Hua; Yang, Yue-Heng; Luo, Zhen-Yu; Shang-Guan, Shi-Mai

Description

The Early Permian Tarim Large Igneous Province (LIP) in northwestern China contains a large area of silicic volcanics (~48,000km2) which are spatially and temporally associated with mafic-ultramafic rocks. In order to understand the behavior of crust above a mantle plume, selected rhyolitic samples are investigated in terms of U-Pb zircon dating, geochemical and isotopic analyses. The Tarim rhyolites have high A/CNK ratios (=molar Al2O3/CaO+Na2O+K2O), Fe#, Ga/Al ratios, concentrations of high...[Show more]

CollectionsANU Research Publications
Date published: 2014
Type: Journal article
URI: http://hdl.handle.net/1885/76507
Source: Lithos
DOI: 10.1016/j.lithos.2014.02.007

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