globalchange  > 气候变化事实与影响
CSCD记录号: CSCD:5959687
论文题名:
铀系法年代学研究进展及在高原盐湖中的应用
其他题名: Research progress in uranium-series dating method and application for saline lake of Tibet Plateau
作者: 马妮娜; 郑绵平
刊名: 科技导报(北京)
ISSN: 1000-7857
出版年: 2017
卷: 35, 期:6, 页码:3636-3642
语种: 中文
中文关键词: 青藏高原 ; 盐湖沉积 ; 铀系法年代学 ; 盐类矿物
英文关键词: Qinghai-Tibetan Plateau ; saline lake ; uranium-series dating ; saline minerals
WOS学科分类: GEOLOGY
WOS研究方向: Geology
中文摘要: 高原盐湖在形成的各个阶段,都详尽记录和保存着其咸化阶段的环境变化信息,是研究极端干旱气候的重要载体。年代学是盐湖古气候研究最重要的一项内容,也是后续研究工作的基础。目前除了最常用的14C定年、光释光(OSL)定年、电子磁悬共振(ESR)和古地磁定年等方法外,铀系法定年在盐湖沉积的年代学研究中也得到了广泛的应用。随着技术发展,铀系测年技术方法经历了alpha谱法、热电离质谱法(TIMS)再到多接受器电感耦合等离子体质谱技术(MC-ICP-MS)的不同发展阶段。而这些技术方法在不同时期和阶段对第四纪及高原盐湖的定年研究做出了一定的贡献。盐湖沉积中的碳酸盐黏土、石盐和石膏等盐类矿物都可以作为铀系定年的研究材料。随着质谱技术的发展,盐类矿物的微区定年也逐渐成为可能。同时,盐湖沉积中盐类矿物的铀系定年研究仍然有限,未来多开展这些方面的研究将对铀系测年技术在盐湖沉积中的应用产生积极作用。
英文摘要: The saline lake deposits involve information of environmental changes during various stages of its evolution and are an important research carrier for extreme arid climates. The geochronological study is very important for reconstructing the past climate changes, as recorded in the salt lake.At present, besides the dating based on the 14C, the OSL, the ESR and the paleomagnetism, the uranium-series dating is used widely in the chronology research of the salt lake deposit. With the advancement of the dating technology,the uranium-series dating has experienced several stages: The alpha spectrometry,the TIMS and the MC-ICP-MS, which have made some contributions to the geochronological study of the Quaternary and the salt lakes on the plateau. And various kinds of saline minerals, such as the carbonate, the halite and the gypsum, can be used as the uranium-series dating materials. With the progress of the mass spectrometry technology, the micro dating in saline minerals becomes possible. But the uranium-series dating on saline minerals remains a research issue. So in the future, the dating researches on saline minerals will be helpful for the applications of the uranium-series dating technology for the saline lake.
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/152684
Appears in Collections:气候变化事实与影响

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作者单位: 中国地质科学院矿产资源研究所, 国土资源部盐湖资源与环境重点实验室, 北京 100037, 中国

Recommended Citation:
马妮娜,郑绵平. 铀系法年代学研究进展及在高原盐湖中的应用[J]. 科技导报(北京),2017-01-01,35(6):3636-3642
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