RT Journal T1 Variations of trace elements and rare earth elements (REEs) treated by two different methods for snow-pit samples on the Qinghai-Tibetan Plateau and their implications A1 YueFang Li, Zhen Li, Ju Huang, Giulio Cozzi, Clara Turetta, Carlo Barbante, LongFei Xiong PB Sciences in Cold and Arid Regions FD 2017-12-01 YR 2017 JF Sciences in Cold and Arid Regions JO Sciences in Cold and Arid Regions VO 9 IS 6 SP 568 DO 10.3724/SP.J.1226.2017.00568 K1 sample-preparation methods;trace elements;REEs;mass fraction;snow samples;Qinghai-Tibetan Plateau LK {http://www.scar.ac.cn/CN/article/article_52.shtml}