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| THE U-Pb ZIRCON AGE OF THE MOLYBDENUM GRANITE AND ITS GEOLOGICAL SIGNIFICANCE IN LUOGUHE, MOHE COUNTY, HEILONGJIANG PROVINCE |
| WANG Hong-bo1, LIU Gui-xiang1, XING Cai-xia2 |
1. Shenyang Institute of Geology and Mineral Resources, Shenyang 110034, China;
2. Jilin No. 1 Institute of Geological Survey, Changchun 130031, China |
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Abstract The Luoguhe molybdenum granite in Daxinganling region, with zircon U-Pb age of 131±2 Ma, belongs to monzogranite, included in high-K calc-alkaline series, with low ΣREE, obviously negative Eu anomaly, low Sr and high Yb. The granite is formed in Early Cretaceous post-collision. The 40Ar-39Ar age of muscovite in greisen is 125.36 ±0.90 Ma. Analysis shows that, around 130 Ma, the Daxinganling region experienced an important tectonic magmatismmineralization period.
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Received: 04 March 2010
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2010, Vol. 19 
