DOI: 10.1016/j.gloplacha.2015.01.011
论文题名: Geochemical characteristics of insoluble dust as a tracer in an ice core from Miaoergou Glacier, east Tien Shan
作者: Du Z. ; Xiao C. ; Liu Y. ; Wu G.
刊名: Global and Planetary Change
ISSN: 0921-8181
出版年: 2015
卷: 127 起始页码: 12
结束页码: 21
语种: 英语
英文关键词: Asian deserts
; Insoluble dust
; Loess
; Rare earth elements
; Sr-Nd isotopic ratios
; Tienshan ice core
Scopus关键词: Arid regions
; Dust
; Exploratory geochemistry
; Isotopes
; Landforms
; Neodymium
; Rare earth elements
; Rare earths
; Sediments
; Strontium
; Aeolian deposition
; Asian deserts
; Geochemical characteristic
; Ice core
; Isotopic composition
; Isotopic ratios
; Loess
; Rare earth elements (REEs)
; Ice
; dust
; eolian deposit
; ice core
; isotopic composition
; isotopic ratio
; loess
; rare earth element
; sampling
; Miaoergou Glacier
; Tien Shan
英文摘要: An ice core was extracted from Miaoergou Glacier, east Tien Shan, China. Concentrations of the rare earth elements (REEs) and Sr-Nd isotopic ratios were measured in insoluble dust sampled from the core. The ratios of REEs in insoluble dust were found to have characteristics typical of aeolian deposition, similar to those of sand and loess from Taklamakan. This suggests that the Taklamakan Desert might be an important source of dust reaching the Miaoergou Glacier. Sr (87Sr/86Sr average 0.718014 and range 0.717025 to 0.718958) and Nd (εNd(0) averages -9.1 and range -9.5 to -8.5) isotopic compositions in insoluble dust are similar to those of desert sand from Taklamakan and Gobi, suggesting that the Gobi Desert may be another major aeolian source for Miaoergou Glacier. Our results can be compared with Sr-Nd isotopic ratios from Greenland snow and ice, further demonstrating how the dust from Asian deserts contributes a high proportion of aeolian dust in the Greenland region. © 2015. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84921839152&doi=10.1016%2fj.gloplacha.2015.01.011&partnerID=40&md5=c48f4a634cddd8eb69ba727b81f31228
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/11552
Appears in Collections: 全球变化的国际研究计划 气候变化与战略
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作者单位: State Key Laboratory of Cryospheric Sciences, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, Gansu, China
Recommended Citation:
Du Z.,Xiao C.,Liu Y.,et al. Geochemical characteristics of insoluble dust as a tracer in an ice core from Miaoergou Glacier, east Tien Shan[J]. Global and Planetary Change,2015-01-01,127.