Geochronology of the volcanic rocks in the Lu-Zong basin and its significance
Geochronology of the volcanic rocks in the Lu-Zong basin and its significance
复制标题
鲁宗盆地火山岩年代学及其意义
DOI：
10.1007/s11430-008-0111-7
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发表时间：
2008-10
期刊：
影响因子：
--
通讯作者：
Cooke, David
中科院分区：
文献类型：
--
作者：
Lu, San Ming;Yuan, Feng;Shang, Shi Gui;Zhao, Guo Chun;Fan, Yu;Meffre, Sebastien;Zhou, Tao Fa;Cooke, David
鲁宗盆地是长江中下游地区重要的火山岩盆地之一。它由龙门塬群、砖桥群、双庙群和福山群4个钾玄质火山岩单元组成。四个单元的LA-ICP MS锆石U-Pb年龄分别为：龙门院群134.8± 1.8Ma，砖桥群134.1± 1.6Ma，双庙群130.5± 0.8Ma，福山群127.1± 1.2Ma。结果表明，庐枞盆地火山岩形成于早白垩世，形成时间约为135 ~ 127 Ma，持续时间约为8-10 Ma。长江中下游地区包括鲁宗盆地在内的所有火山盆地均未发现侏罗纪火山活动。这一工作为进一步研究和认识中国东部中生代构造、岩浆和成矿作用提供了新的年代学成果。
The Lu-Zong (Lujiang-Zongyang) basin is one of the most important volcanic basins in the middle and lower reaches of the Yangtze River area, China. It comprises four shoshonitic volcanic units, which are, in an ascending order, the Longmenyuan, Zhuanqiao, Shuangmiao and Fushan Groups. The LA-ICP MS U-Pb zircon ages of the four units are: 134.8±1.8 Ma for the Longmenyuan Group, 134.1±1.6 Ma for the Zhuanqiao Group, 130.5±0.8 Ma for the Shuangmiao Group, and 127.1±1.2 Ma for the Fushan Group. The results indicate that all volcanic rocks in the Lu-Zong basin were formed in the Early Cretaceous from about 135 Ma to 127 Ma, lasting 8–10 Ma. There were no Jurassic volcanic activities in all the volcanic basins including the Lu-Zong basin in the middle and lower reaches of the Yangtze River area. This work has provided new chronological results for the further study and understanding of the tectonic, magmatic and metallogenic processes of eastern China in the Mesozoic.
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DOI：
--
发表时间：
2003
期刊：
Geological Journal of China Universities
影响因子：
--
作者：
Chengzhu Jiang
通讯作者：
Chengzhu Jiang
影响因子：
4.8
作者：
M. Economou;A. J. Naldrett
通讯作者：
M. Economou;A. J. Naldrett
影响因子：
3.5
作者：
Belousova, EA;Griffin, WL;Fisher, NI
通讯作者：
Fisher, NI
影响因子：
--
作者：
L. Shuguang;Yang Wei
通讯作者：
L. Shuguang;Yang Wei
DOI：
--
发表时间：
2000
期刊：
--
影响因子：
--
作者：
Zhou Taofa
通讯作者：
Zhou Taofa