干旱区生态环境知识资源中心(Arid): Geographical drivers of geochemical and mineralogical evolution of Motianling peatland (Northeast China) exposed to different sources of rare earth elements and Pb, Nd, and Sr isotopes

Arid

DOI	10.1016/j.scitotenv.2021.150481
	Geographical drivers of geochemical and mineralogical evolution of Motianling peatland (Northeast China) exposed to different sources of rare earth elements and Pb, Nd, and Sr isotopes
	Fialkiewicz-Koziel, Barbara; Bao, Kunshan; Smieja-Krol, Beata
通讯作者	Fialkiewicz-Koziel, B (corresponding author), Adam Mickiewicz Univ, Inst Geoinformat & Geoecol, Krygowskiego 10, Poznan, Poland.
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2022
卷号	807
英文摘要	Geochemical shifts triggered by surface runoff and atmospheric fallout in a Chinese peatland were investigated by using Pb, Sr, and Nd, REE and by SEM mineralogical analysis. Motianling peatland (Northeast China) is located at 1670 ma.s.l., near the China-Mongolia border. Based on division of profile into two phases of different trophy, the total Sigma REE value determined for the minerotrophic part of the profile (from 62 to 46 cm) varied from 67 to 31 mg.kg(-1) and mineralogical analysis revealed the occurrence of weathered volcanic rocks, supported by a high epsilon Nd value (-3.26). After the transition from minerotrophic to more ombrotrophic conditions, the peatland became independent of the local bedrock weathering, which was manifested by a much lower concentration of REE (7-20 mg.kg(-1)) and lower eNd values (-7.37; -8.11). Moreover, PAAS-normalized pattern of REE distribution in the bottom part revealed the highest Eu/Eu* value (1.24), as well as a slight enrichment in Eu. The anthropogenic effect was visible from 1964, during which period the spheroidal aluminosilicate particles (SAP), produced by coal-fired power-plant activity, appeared for the first time, followed by an abrupt decrease in Pb-206/Pb-207 isotopic signature to 1.167. The dimensions of SAP (similar to 1.5 mu m), as well as the time of first appearance, indicated long-range transport. The REE ratios obtained in this study are characteristic of the eolian deposition signature, which is like the Gobi and northern Chinese deserts. The anthropogenic activity was manifested by a slight enrichment in Gd during reduced delivery of natural dust. Both, North Chinese and Asian part of the Russian industry supply anthropogenic dust. Topography, wind direction, and patterns of precipitation, as well as the initial phases of Asian industrial development, are the most important drivers promoting the deposition of chemical elements. (C) 2021 The Authors. Published by Elsevier B.V.
英文关键词	Peat bog Stable isotopes Rare earth elements Anthropocene Source provenance
类型	Article
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:000707662000004
WOS关键词	ATMOSPHERIC METAL-DEPOSITION ; GREAT HINGGAN MOUNTAIN ; LONG-RANGE TRANSPORT ; ASIAN DUST STORM ; C-14 YR BP ; JURA MOUNTAINS ; INORGANIC GEOCHEMISTRY ; ANTHROPOGENIC LEAD ; TRACE-ELEMENTS ; AIR-POLLUTANTS
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/364637
作者单位	[Fialkiewicz-Koziel, Barbara] Adam Mickiewicz Univ, Inst Geoinformat & Geoecol, Krygowskiego 10, Poznan, Poland; [Bao, Kunshan] South China Normal Univ, Sch Geog, Guangzhou 510631, Peoples R China; [Smieja-Krol, Beata] Univ Silesia, Inst Earth Sci, Fac Nat Sci, Bedzinska 60, PL-41200 Sosnowiec, Poland
推荐引用方式 GB/T 7714	Fialkiewicz-Koziel, Barbara,Bao, Kunshan,Smieja-Krol, Beata. Geographical drivers of geochemical and mineralogical evolution of Motianling peatland (Northeast China) exposed to different sources of rare earth elements and Pb, Nd, and Sr isotopes[J],2022,807.
APA	Fialkiewicz-Koziel, Barbara,Bao, Kunshan,&Smieja-Krol, Beata.(2022).Geographical drivers of geochemical and mineralogical evolution of Motianling peatland (Northeast China) exposed to different sources of rare earth elements and Pb, Nd, and Sr isotopes.SCIENCE OF THE TOTAL ENVIRONMENT,807.
MLA	Fialkiewicz-Koziel, Barbara,et al."Geographical drivers of geochemical and mineralogical evolution of Motianling peatland (Northeast China) exposed to different sources of rare earth elements and Pb, Nd, and Sr isotopes".SCIENCE OF THE TOTAL ENVIRONMENT 807(2022).