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Using a geochemical method of dissolved and insoluble fractions to characterize surface snow melting and major element elution
Wu, GJ (Wu, Guangjian)1,2; Li, PL (Li, Peilin)1,3; Zhang, XL (Zhang, Xuelei)4; Zhang, CL (Zhang, Chenglong)5
Source PublicationJOURNAL OF GLACIOLOGY
2018-12-01
Volume64Issue:248Pages:1003-1013
DOI10.1017/jog.2018.87
Abstract

A geochemical method to characterize post-depositional melting and elution is demonstrated using inductively coupled plasma mass spectrometry to measure concentrations of dissolved and insoluble fractions of major crustal elements in snow samples collected from March 2006 to January 2010 at Urumqi Glacier No. 1, Tien Shan. Dust from these samples has compositional homogeneity, suggesting that dust has a stable dissolved fraction percentage (DFP, calculated as dissolved/(dissolved + insoluble)%). Calcium has the highest DFP (averaging 61.5 +/- 19.4%), followed by Na (30.4 +/- 19.6%), Mg (13.2 +/- 9.8%), and K (7.9 +/- 9.8%). Acid input can affect dissolution of Na and Ca. Taking DFP values of unmelted samples as the reference, the higher DFPs refer to strengthened dissolution from acid input, while the lower ones refer to elution. Based on the DFP difference between unmelted and eluted states, an elution sequence Ca > Na > Mg > K is obtained. Some details such as the beginning and the ending stages of elution can be found by DFP and acid input index, while using ion concentration is not capable of this. Our results reveal that acid input is an important mechanism for DFP changes, that the DFP index can provide an effective assessment of snow elution, and that this will aid in understanding low latitude ice cores.

Subject Area地理学
WOS IDWOS:000454427700013
Language英语
Indexed BySCIE
KeywordGlacier No. 1 Ice Core Tien-shan Lomonosovfonna Relocation Meltwater North Dust Site
WOS Research AreaPhysical Geography ; Geology
WOS SubjectGeography, Physical ; Geosciences, Multidisciplinary
Cooperation Status国内
ISSN0022-1430
Department环境变化与地表过程重点实验室
PublisherCAMBRIDGE UNIV PRESS
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itpcas.ac.cn/handle/131C11/8485
Collection图书馆
Corresponding AuthorWu, GJ (Wu, Guangjian)
Affiliation1.Chinese Acad Sci, Key Lab Tibetan Environm Changes & Land Surface P, Inst Tibetan Plateau Res, Beijing 100101, Peoples R China;
2.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China;
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China;
4.Chinese Acad Sci, Northeast Inst Geog & Agroecol, Changchun 130102, Jilin, Peoples R China;
5.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China.
Recommended Citation
GB/T 7714
Wu, GJ ,Li, PL ,Zhang, XL ,et al. Using a geochemical method of dissolved and insoluble fractions to characterize surface snow melting and major element elution[J]. JOURNAL OF GLACIOLOGY,2018,64(248):1003-1013.
APA Wu, GJ ,Li, PL ,Zhang, XL ,&Zhang, CL .(2018).Using a geochemical method of dissolved and insoluble fractions to characterize surface snow melting and major element elution.JOURNAL OF GLACIOLOGY,64(248),1003-1013.
MLA Wu, GJ ,et al."Using a geochemical method of dissolved and insoluble fractions to characterize surface snow melting and major element elution".JOURNAL OF GLACIOLOGY 64.248(2018):1003-1013.
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