DOI: 10.5194/cp-9-2285-2013
Scopus记录号: 2-s2.0-84885661917
论文题名: Mid- and late Holocene dust deposition in western Europe: The Misten peat bog (Hautes Fagnes – Belgium)
作者: Allan M. ; Le Roux G. ; Piotrowska N. ; Beghin J. ; Javaux E. ; Court-Picon M. ; Mattielli N. ; Verheyden S. ; Fagel N.
刊名: Climate of the Past
ISSN: 18149324
出版年: 2013
卷: 9, 期: 5 起始页码: 2285
结束页码: 2298
语种: 英语
Scopus关键词: atmospheric deposition
; dust
; Holocene
; humification
; neodymium isotope
; ombrotrophic environment
; paleoatmosphere
; peatland
; protozoan
; rare earth element
; tracer
; Belgium
; Hohe Venn
; Western Europe
英文摘要: Dust deposition in southern Belgium is estimated from the geochemical signature of an ombrotrophic peatland. The rare earth elements (REE) and lithogenic elements concentrations, as well as Nd isotopes, were determined by HR-ICP-MS and MC-ICP-MS, respectively, along an ∼6 m peat section covering 5300 yr, from 2000 to 7300 cal BP, dated by the 14C method. Changes in REE concentration in the peat correlate with those of Ti, Al, Sc and Zr that are lithogenic conservative elements, suggesting that REE are immobile in the studied peat bogs and can be used as tracers of dust deposition. Peat humification and testate amoebae were used to evaluate hydroclimatic conditions. The range of dust deposition varied from 0.03 to 4.0 g m-2 yr -1. The highest dust fluxes were observed from 2750 to 2550 cal BP and from 5150 to 4750 cal BP, and correspond to cold periods. The ϵNd values show a large variability from -13 to -5, identifying three major sources of dusts: local soils, distal volcanic and desert particles. © Author(s) 2013. CC Attribution 3.0 License. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/49369
Appears in Collections: 气候变化与战略
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Recommended Citation:
Allan M.,Le Roux G.,Piotrowska N.,et al. Mid- and late Holocene dust deposition in western Europe: The Misten peat bog (Hautes Fagnes – Belgium)[J]. Climate of the Past,2013-01-01,9(5)