矿物U/Pb测年技术在物源研究中的应用  

Application of mineral U/Pb dating technology in provenance research

作　　者：蔡虎成 CAI Hu-cheng(Chinese Academy of Geological Sciences,Beijing 100037,China;China University of Geosciences(Beijing),Beijing 100083,China)

机构地区：[1]中国地质科学院,北京100037 [2]中国地质大学(北京),北京100083

出　　处：《世界有色金属》2020年第20期138-139,142,共3页World Nonferrous Metals

摘　　要：黄土高原的黄土沉积序列中蕴含着丰富的古环境和古气候信息,是研究黄土高原地区气候特征和演化机制的理想载体。然而,跟古气候演化的研究相比,黄土物源研究还存在争议,矿物颗粒U/Pb测年方法通过提供样品矿物的年代,可以尽可能的获取物源信息,可信度较高。因此,该方法对于解决地质学家有关黄土物源研究的争议提供了可能。The sedimentary sequence of the Loess Plateau contains abundant paleoenvironment and paleoclimate information,which is an ideal carrier for studying the climatic characteristics and evolutionary mechanism of the Loess Plateau.However,compared with the study on paleoclimate evolution,the loess provenance study is still controversial.The mineral particle U/Pb dating method can obtain the provenance information as much as possible by providing the mineral age of the sample,which is highly reliable.Therefore,this method provides a possible solution to the dispute among geologists about the source of loess.

关 键 词：U/Pb测年技术 物源 

分 类 号：P597.3[天文地球—地球化学]