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- W2379898075 abstract "Granite intrusion is spatially and temporally associated with the uranium mineralization in the Huangfengling uranium deposit located in the well-known Lujing uranium orefield.To constrain the age of the biotite granite pluton related to uranium mineralization,U-Pb dating of zircon was conducted,resulting in age (235.4 ± 1.1 Ma) which confirms that this biotite granite emplacement occurred during the Indo-Chinese period.Hafnium isotope data from laser-ablation multicollector ICPMS analysis of zircon show that the Indo-Chinese biotite granite has negative and variable eHf(t) values (-4.7 to -13.5) and age of the Palaeo-Mesoproterozoic (1.6 to 2.1 Ga) as a Hafnium two-stage depleted-mantle model.The values of eHf(t) are interpreted to reflect derivation from an isotopically heterogeneous crust source.Inherited zircon cores yield Caledonian and Palaeo-Mesoproterozoic ages,indicating the effect of Caledonian.The positive eHf(t) value 10.8 of the Paleoproterozoic inherited zircons suggest that the mantle materials could be involved in the magmatic sources when the inherited zircons were formed.Considering Palaeo-Mesoproterozoic inherited zircon cores and Palaeo-Mesoproterozoic Hafnium depleted-mantle model ages,the source region for these magmas may be tentatively correlated with Palaeo-Mesoproterozoic material of the South China Block.Further work is necessary to demonstrate this suggestion." @default.
- W2379898075 created "2016-06-24" @default.
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- W2379898075 date "2011-01-01" @default.
- W2379898075 modified "2023-09-26" @default.
- W2379898075 title "Age and Genesis of the Granite in the Huangfengling Uranium Deposit, Jiangxi Province: Evidence from Zircon U-Pb Dating and Hf Isotopes" @default.
- W2379898075 hasPublicationYear "2011" @default.
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