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    王宏博, 刘桂香, 邢彩霞. 黑龙江漠河县洛古河含钼花岗岩体锆石U-Pb年龄及地质意义[J]. 地质与资源, 2010, 19(2): 186-190. DOI: 10.13686/j.cnki.dzyzy.2010.02.003
    引用本文: 王宏博, 刘桂香, 邢彩霞. 黑龙江漠河县洛古河含钼花岗岩体锆石U-Pb年龄及地质意义[J]. 地质与资源, 2010, 19(2): 186-190. DOI: 10.13686/j.cnki.dzyzy.2010.02.003
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    WANG Hong-bo, LIU Gui-xiang, XING Cai-xia. THE U-Pb ZIRCON AGE OF THE MOLYBDENUM GRANITE AND ITS GEOLOGICAL SIGNIFICANCE IN LUOGUHE, MOHE COUNTY, HEILONGJIANG PROVINCE[J]. Geology and Resources, 2010, 19(2): 186-190. DOI: 10.13686/j.cnki.dzyzy.2010.02.003
    Citation: WANG Hong-bo, LIU Gui-xiang, XING Cai-xia. THE U-Pb ZIRCON AGE OF THE MOLYBDENUM GRANITE AND ITS GEOLOGICAL SIGNIFICANCE IN LUOGUHE, MOHE COUNTY, HEILONGJIANG PROVINCE[J]. Geology and Resources, 2010, 19(2): 186-190. DOI: 10.13686/j.cnki.dzyzy.2010.02.003
    shu

    黑龙江漠河县洛古河含钼花岗岩体锆石U-Pb年龄及地质意义

    THE U-Pb ZIRCON AGE OF THE MOLYBDENUM GRANITE AND ITS GEOLOGICAL SIGNIFICANCE IN LUOGUHE, MOHE COUNTY, HEILONGJIANG PROVINCE

      摘要
    • 摘要: 大兴安岭地区洛古河含钼花岗岩体的锆石U-Pb年龄为131±2 Ma，含钼花岗岩为二长花岗岩，属高钾钙碱性系列，ΣREE较低，Eu负异常明显，花岗岩低Sr高Yb，属早白垩世后碰撞花岗岩.其云英岩中白云母的40Ar-39Ar年龄为125.36±0.90 Ma.资料分析表明，130 Ma前后为大兴安岭地区重要的构造岩浆-成矿作用期.

       

      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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