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DOI	10.1017/jog.2018.87
	Using a geochemical method of dissolved and insoluble fractions to characterize surface snow melting and major element elution
	Wu, Guangjian; Li, Peilin; Zhang, Xuelei; Zhang, Chenglong
通讯作者	Wu, GJ (通讯作者)
发表日期	2018
ISSN	0022-1430
EISSN	1727-5652
起始页码	1003
结束页码	1013
卷号	64 期号:248
英文摘要	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.
关键词	GLACIER NO. 1 ICE CORE TIEN-SHAN LOMONOSOVFONNA RELOCATION MELTWATER NORTH DUST SITE
英文关键词	melt-surface; mountain glaciers; snow and ice chemistry
语种	英语
WOS研究方向	Physical Geography ; Geology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号	WOS:000454427700013
来源期刊	JOURNAL OF GLACIOLOGY
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/259210
推荐引用方式 GB/T 7714	Wu, Guangjian,Li, Peilin,Zhang, Xuelei,et al. Using a geochemical method of dissolved and insoluble fractions to characterize surface snow melting and major element elution[J]. 中国科学院青藏高原研究所,2018,64(248).
APA	Wu, Guangjian,Li, Peilin,Zhang, Xuelei,&Zhang, Chenglong.(2018).Using a geochemical method of dissolved and insoluble fractions to characterize surface snow melting and major element elution.JOURNAL OF GLACIOLOGY,64(248).
MLA	Wu, Guangjian,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).