Zircon SHRIMP U-Pb Dating of the Buried Granodiorite and
Muscovite 40Ar/39Ar Dating of Mineralization and Geological Implications
of Meiziwo Tungsten Deposit, Northern Guangdong Province, China

J4 ›› 2010, Vol. 16 ›› Issue (2): 177-185.

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Zircon SHRIMP U-Pb Dating of the Buried Granodiorite and
Muscovite 40Ar/39Ar Dating of Mineralization and Geological Implications
of Meiziwo Tungsten Deposit, Northern Guangdong Province, China

ZHI Wei, SUN Xiao-ming, WU Yun-shan, SUN Yan, HUA Ren-min, YANG Yong-qiang, LI Wen-qian, LI She-hong

1. Marine College, Sun Yat-sen University, Guangzhou 510275, China; 2. Department of Earth Sciences, Sun Yat-sen University, Guangzhou 510275, China; 3. State Key Laboratory for Mineral Deposit Research, Nanjing University, Nanjing 210093, China; 4. State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Beijing 100083, China; 5. Guangzhou Institute of Geochemistry, CAS, Guangzhou 510640, China

Received:2009-10-12 Revised:2010-02-28 Online:2010-06-20 Published:2010-06-20

Abstract

Abstract:

The Meiziwo tungsten deposit is located in eastern part of Yaoling-Meiziwo tungsten mineralization zone, northern Guangdong province. The ⁴⁰Ar/³⁹Ar age of muscovite formed in syn-mineralization period is (155.9±0.6) Ma, consistent with large scale tungsten and tin mineralization in the Mesozoic Yanshanian period in South China. This date represents the mineralization age of the Meiziwo tungsten deposit. The zircon SHRIMP U-Pb age of biotite granodiorite body, occurring at about 600 m level in the lower part of the mine, is (430.4±3.6) Ma. This age suggests that the granodiorite body formed in the Caledonian period has no genetic relation to the tungsten mineralization. Our new data disagree with the previously proposed model for the tungsten mineralization, i.e., two times of “five-story”mineralization overprinted each other in this deposit. The ages of the mineralization and granodiorite indicate that the formation of Meiziwo tungsten deposit may be related to an Yanshanian granite buried in a deeper level, and therefore, we expect that the ore bodies might have a larger extension in depth.

Key words: Meiziwo tungsten deposit, buried granodiorite, zircon SHRIMP U-Pb age, Mineralization age

CLC Number:

ZHI Wei, SUN Xiao-ming, WU Yun-shan, SUN Yan, HUA Ren-min, YANG Yong-qiang, LI Wen-qian, LI She-hong. Zircon SHRIMP U-Pb Dating of the Buried Granodiorite and
Muscovite 40Ar/39Ar Dating of Mineralization and Geological Implications
of Meiziwo Tungsten Deposit, Northern Guangdong Province, China[J]. J4, 2010, 16(2): 177-185.

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Zircon SHRIMP U-Pb Dating of the Buried Granodiorite and
Muscovite 40Ar/39Ar Dating of Mineralization and Geological Implications
of Meiziwo Tungsten Deposit, Northern Guangdong Province, China

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Zircon SHRIMP U-Pb Dating of the Buried Granodiorite and Muscovite 40Ar/39Ar Dating of Mineralization and Geological Implications of Meiziwo Tungsten Deposit, Northern Guangdong Province, China

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Zircon SHRIMP U-Pb Dating of the Buried Granodiorite and
Muscovite 40Ar/39Ar Dating of Mineralization and Geological Implications
of Meiziwo Tungsten Deposit, Northern Guangdong Province, China