Preliminary results from measurements of selected trace metals in the snow-firn pack on Urumqi glacier No. 1, eastern Tien Shan, China
文献类型：期刊论文
| 作者 | Ll Zhongqin; Ll Chuanjin; Ll Yuefang; Wang Feiteng; Ll Huilin |
| 刊名 | JOURNAL OF GLACIOLOGY
 |
| 出版日期 | 2007 |
| 卷号 | 53期号:182页码:368-373 |
| ISSN号 | 0022-1430 |
| 通讯作者 | Ll Zhongqin(lizq@lzb.ac.cn) |
| 英文摘要 | We present preliminary results on the occurrence of Pb, Cd, Zn, Al and Fe in dated samples collected from snow-firn packs at an altitude of 4130 m on Urumqi glacier No. 1, eastern Tien Shan. Extreme precautions for avoiding contamination were taken throughout the sampling, processing, transportation and analysis procedures. The concentrations of trace metals were determined by a double-focusing inductively coupled plasma mass spectrometer in an ultra-clean room. The average concentrations for these metals in surface snow are (in ng g(-1)): Pb, 2.4; Cd, 0.05; Zn, 10.0; Al, 100.0; and Fe, 130.0. These are higher concentrations (especially for Pb and Zn) than those in the polar and/or low-latitude remote areas. The data show that the input of trace metals to the snow has a clear seasonal change. Lower concentrations in surface snow can be found in July through September and higher concentrations from October to March, with an exception for January. The mean concentrations of the elements in the snow-firn pack also indicate seasonal variations and show a marked inverse relationship with temperature, possibly a result of meltwater percolation in the snow-firn pack. |
| 收录类别 | SCI |
| WOS关键词 | CENTRAL GREENLAND SNOW ; HEAVY-METALS ; ATMOSPHERIC-POLLUTION ; ICE CORE ; SEASONAL-VARIATIONS ; LEAD POLLUTION ; ANTARCTIC ICE ; SURFACE SNOW ; ALPINE FIRN ; RECORD |
| WOS研究方向 | Physical Geography ; Geology |
| WOS类目 | Geography, Physical ; Geosciences, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000251119800005 |
| 出版者 | INT GLACIOL SOC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2556005 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Ll Zhongqin |
| 作者单位 | Chinese Acad Sci, Key Lab Cryosphere & Environm Tianshan Glaciol St, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ll Zhongqin,Ll Chuanjin,Ll Yuefang,et al. Preliminary results from measurements of selected trace metals in the snow-firn pack on Urumqi glacier No. 1, eastern Tien Shan, China[J]. JOURNAL OF GLACIOLOGY,2007,53(182):368-373. |
| APA | Ll Zhongqin,Ll Chuanjin,Ll Yuefang,Wang Feiteng,&Ll Huilin.(2007).Preliminary results from measurements of selected trace metals in the snow-firn pack on Urumqi glacier No. 1, eastern Tien Shan, China.JOURNAL OF GLACIOLOGY,53(182),368-373. |
| MLA | Ll Zhongqin,et al."Preliminary results from measurements of selected trace metals in the snow-firn pack on Urumqi glacier No. 1, eastern Tien Shan, China".JOURNAL OF GLACIOLOGY 53.182(2007):368-373. |
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来源：寒区旱区环境与工程研究所
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