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| 南秦岭略阳鱼洞子岩群磁铁石英岩形成时代的锆石U-Pb年代学约束 | |
| 引用本文： | 王洪亮,徐学义,陈隽璐,闫臻,李婷,朱涛.南秦岭略阳鱼洞子岩群磁铁石英岩形成时代的锆石U-Pb年代学约束[J].地质学报,2011,85(8):1284-1290. |
| 作者姓名： | 王洪亮 徐学义 陈隽璐 闫臻 李婷 朱涛 |
| 作者单位： | 1. 中国地质调查局西安地质调查中心,西安,710054;西北大学大陆动力学国家重点实验室,西安,710069 2. 中国地质调查局西安地质调查中心,西安,710054 3. 中国地质科学院地质研究所,北京,100037 |
| 基金项目： | 国家自然科学基金项目（面上项目，重点项目，重大项目） |
| 摘 要： | 鱼洞子杂岩是秦岭造山带出露的重要太古宙基底,也是该地区最古老的复杂地质体.鱼洞子杂岩主要由变质地层(鱼洞子岩群)和规模不等的花岗质变质侵入体(花岗片麻岩)组成.各地质体间多以构造面理接触.鱼洞子岩群是重要的铁矿产出层位,铁矿及其赋矿围岩的形成时代一直没有可靠的依据.本次选择小沟山矿区磁铁石英岩分选出大量锆石.CL影像特... |
| 关 键 词： | 秦岭造山带 鱼洞子岩群 磁铁石英岩 锆石 年代学 |
| 收稿时间： | 2011/3/21 0:00:00 |
| 修稿时间： | 4/22/2011 5:06:59 PM |
Constraint from zircon U-Pb chronology of Yudongzi group magnetite-quartzite in Lueyang area, southern Qinling,China |
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| WANG Hongliang,Xu Xueyi,Chen Junlu,Yan Zhen,Li Ting and Zhu Tao.Constraint from zircon U-Pb chronology of Yudongzi group magnetite-quartzite in Lueyang area, southern Qinling,China[J].Acta Geologica Sinica,2011,85(8):1284-1290. | |
| Authors: | WANG Hongliang Xu Xueyi Chen Junlu Yan Zhen Li Ting and Zhu Tao |
| Abstract: | Yudongzi complex is a significant Archean basement exposed in the Qinling orogenic belt and also the oldest geological mass in the Qinling area.It is composed mainly of metamorphic strata(Yudongzi Group) and granitic metamorphic intrusions with various sizes,most of which contact with structural foliation.The Yuzidong Group is an important iron-hosting horizon,but there has been no reliable evidence for formation ages of iron deposit and ore-hosting country rocks.The study picked lots of zircons from magnet... |
| Keywords: | Qinling Orogenic Belt Yudongzi group the magnetite-quartzite zircon chronology |
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