The U-Pb Zircon Age of the Molybdenum Granite and Its Geological Significance in Luoguhe,
详细信息
- 责任者：Wang Hongbo (Shenyang Institute of Geology and Mineral Resources ; Shenyang 110034 ; China) ; Liu Guixiang
- 刊名：Geology and Resources
- 出版年：2010
- 卷期：19(2)
- 关键词：铀—铅计时 ; U-Pb dating ; 钼矿 ; molybdenum ores ; 黑龙江省 ; Heilongjiang Province
- 页码：p.186-190
- 图表：6 illus, 2 tables, 17 refs.
- 分类号：1001
- issnNo：ISSN1671-1947
- isbnNo：CN21-1458/P
摘要
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.