Knowledge Resource Center for Ecological Environment in Arid Area
| 项目编号 | 41372036 |
| 黄土高原新近纪红粘土碎屑锆石的时空分布特征及物源区指示意义 | |
| 弓虎军 | |
| 主持机构 | 西北大学 |
| 开始日期 | 2014 |
| 结束日期 | 2017 |
| 资助经费 | 930000(CNY) |
| 项目类别 | 面上项目 |
| 资助机构 | CN-NSFC（国家自然科学基金） |
| 语种 | 中文 |
| 国家 | 中国 |
| 英文简介 | Abstract: The Loess Plateau developed huge、almost continuous integrity Neogene Red Clay in China, the information contained in the sediments associated with the major tectonic of the global environment evolution and climate events. The Red Clay provenance tracer is the most basic content of studying the paleoclimate and paleoenvironment significance of the Red Clay. Using scanning electron microscopy, CL analysis, excimer laser ablation LA-MC-ICP-MS, the femtosecond laser ablation system UP femto and high-resolution ion mass spectrometer Nu AttoM ICP-MS analysis test morphology, cathodoluminescence, U-Pb age, Hf isotopes and trace elements of 4 deposition Red Clay typical sections since the late Miocene in Lantian、Lingtai、Qin'an(QA-Ⅰ)、Fugu, Northwest Gobi in Loess Plateau, Desert sediments detrital zircons.Comparing and analsis the spatial and temporal distribution and variation Characteristics of the Northwest Gobi desert sediment detrital zircon U-Pb zircon age and Hf isotope composition, in the different layers of the same section and different sections of the same deposition period，discussing the nature of the source region and the temporal and spatial variation in the process of Red Clay deposits.These will provide basis to reveal the source area and the temporal and spatial variation of the transporting path in the Neogene Red Clay deposition process. |
| 中文关键词 | 新近纪 ; 红粘土 ; 碎屑锆石 ; 物源变化 ; 沉积过程 |
| 来源机构 | 西北大学 |
| 资源类型 | 项目 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/345569 |
| 推荐引用方式 GB/T 7714 | 弓虎军.黄土高原新近纪红粘土碎屑锆石的时空分布特征及物源区指示意义.2014. |
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