| Detrital Zircon of 4100 Ma in Quartzite in Burang, Tibet |
| |
| 作者姓名： | DUO Ji WEN Chunqi FAN Xiaoping GUO Jianci NI Zhiyao LI Xiaowen SHI Yuruo WEN Quan |
| |
| 作者单位： | [1]Bureau of Geology and Mineral Resources of Tibet Autonomous Region, Lhasa, Tibet 850000 [2]Chengdu University of Technology, Chengdu, Sichuan 610059 [3]Beijing SHRIMP Center, Beijing 100037 |
| |
| 基金项目： | 国家自然科学基金;国家重点基础研究发展计划(973计划) |
| |
| 摘 要： | A detrital zircon aged 4.1 Ga is discovered by the SHRIMP U-Pb method in a quartzite in Burang County, western Tibet. This is presently the oldest single-grain detrital zircon in China. The Th-U ratios of the two testing points of the 〉4.0 Ga zircon are between 0.76 and 0.86, indicating their magmatic origin. This discovery has offered an important age for investigating the geological evolution of the Qinghai-Tibet Plateau.
|
| 关 键 词： | 岩屑 锆石 石英岩 西藏 地质年代学 |
| 收稿时间： | 8/8/2006 12:00:00 AM |
| 修稿时间： | 2006-09-14 |
Detrital Zircon of 4100 Ma in Quartzite in Burang, Tibet |
| |
| Authors: | DUO Ji WEN Chunqi FAN Xiaoping GUO Jianci NI Zhiyao LI Xiaowen SHI Yuruo and WEN Quan Bureau of Geology and Mineral Resources of Tibet Autonomous Region Lhas Tibet Chengdu University of Technology Chengdu Sichuan Beijing SHR |
| |
| Abstract: | A detrital zircon aged 4.1 Ga is discovered by the SHRIMP U-Pb method in a quartzite in Burang County, western Tibet. This is presently the oldest single-grain detrital zircon in China. The Th-U ratios of the two testing points of the >4.0 Ga zircon are between 0.76 and 0.86, indicating their magmatic origin. This discovery has offered an important age for investigating the geological evolution of the Qinghai-Tibet Plateau. |
| |
| Keywords: | SHRIMP detrital zircon 4 1 Ga Tibet |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《Acta Geologica Sinica》浏览原始摘要信息 |
| 点击此处可从《Acta Geologica Sinica》下载免费的PDF全文 |
