Laser Ablation ICP-MS Titanite U-Th-Pb Dating of the Tonglushan Cu-Fe-Au Skarn Deposit, Southeastern Hubei Province
来源期刊：矿物学报2009年增刊第1期
论文作者：LI Jian-wei LIU Yong-sheng DENG Xiao-dong ZHOU Mei-fu
摘 要： Titanite (CaTi_2SiO_5) is an important accessory mineral not only in magnatic and metamorphic rocks,but also commonly in hydrothermal mineral deposits.It incorporates appreciable amounts (usually 10 ×10~(-6) s to 100 × 10~(-6) s) of U and Th into its structure and has a closure temperature of Pb diffusion higher than 660 ～ 700 ℃ (Scott and St-Onge, 1995),making it an ideal U-Th-Pb geochronometer.
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摘要: Titanite (CaTi_2SiO_5) is an important accessory mineral not only in magnatic and metamorphic rocks,but also commonly in hydrothermal mineral deposits.It incorporates appreciable amounts (usually 10 ×10~(-6) s to 100 × 10~(-6) s) of U and Th into its structure and has a closure temperature of Pb diffusion higher than 660 ～ 700 ℃ (Scott and St-Onge, 1995),making it an ideal U-Th-Pb geochronometer.
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