| 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 |
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| 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. |
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| 作者姓名： | 王宏博 刘桂香 邢彩霞 |
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| 作者单位： | 1. 沈阳地质矿产研究所, 辽宁 沈阳 110034;2. 吉林第一地质调查所, 吉林 长春 130031 |
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| 基金项目： | 黑龙江省大兴安岭地区漠河县洛古河铜金普查项目 |
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| 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±2Ma,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±0.90Ma.资料分析表明,130Ma前后为大兴安岭地区重要的构造岩浆-成矿作用期.
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| 关 键 词： | 锆石U-Pb年龄 40Ar-39Ar年龄 含钼花岗岩体 构造岩浆-成矿时期 洛古河 |
| 收稿时间： | 2010-03-04 |
THE U-Pb ZIRCON AGE OF THE MOLYBDENUM GRANITE AND ITS GEOLOGICAL SIGNIFICANCE IN LUOGUHE, MOHE COUNTY, HEILONGJIANG PROVINCE |
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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. |
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| Authors: | WANG Hong-bo LIU Gui-xiang XING Cai-xia |
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| Institution: | 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 magmatism-mineralization period. |
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| Keywords: | zircon U-Pb age 40Ar-39Ar age molybdenum granite magmatism-mineralization period Luoguhe of Heilongjiang Province |
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