Using a geochemical method of dissolved and insoluble fractions to characterize surface snow melting and major element elution
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 G...
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| Format: | Article |
| Language: | English |
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Cambridge University Press
2018-12-01
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| Series: | Journal of Glaciology |
| Subjects: | |
| Online Access: | https://www.cambridge.org/core/product/identifier/S0022143018000874/type/journal_article |
| _version_ | 1811155830979952640 |
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| author | GUANGJIAN WU PEILIN LI XUELEI ZHANG CHENGLONG ZHANG |
| author_facet | GUANGJIAN WU PEILIN LI XUELEI ZHANG CHENGLONG ZHANG |
| author_sort | GUANGJIAN WU |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-04-10T04:41:17Z |
| format | Article |
| id | doaj.art-e72db12be6994ba39a7cf42542ac7ab9 |
| institution | Directory Open Access Journal |
| issn | 0022-1430 1727-5652 |
| language | English |
| last_indexed | 2024-04-10T04:41:17Z |
| publishDate | 2018-12-01 |
| publisher | Cambridge University Press |
| record_format | Article |
| series | Journal of Glaciology |
| spelling | doaj.art-e72db12be6994ba39a7cf42542ac7ab92023-03-09T12:40:41ZengCambridge University PressJournal of Glaciology0022-14301727-56522018-12-01641003101310.1017/jog.2018.87Using a geochemical method of dissolved and insoluble fractions to characterize surface snow melting and major element elutionGUANGJIAN WU0PEILIN LI1XUELEI ZHANG2https://orcid.org/0000-0002-5992-4334CHENGLONG ZHANG3Key Laboratory of Tibetan Environment Changes and Land Surface Processes, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China CAS Center for Excellence in Tibetan Plateau Earth Sciences, Beijing 100101, ChinaKey Laboratory of Tibetan Environment Changes and Land Surface Processes, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China University of Chinese Academy of Sciences, Beijing 100049, ChinaNortheast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, ChinaResearch Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, ChinaA 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.https://www.cambridge.org/core/product/identifier/S0022143018000874/type/journal_articlemelt-surfacemountain glacierssnow and ice chemistry |
| spellingShingle | GUANGJIAN WU PEILIN LI XUELEI ZHANG CHENGLONG ZHANG Using a geochemical method of dissolved and insoluble fractions to characterize surface snow melting and major element elution Journal of Glaciology melt-surface mountain glaciers snow and ice chemistry |
| title | Using a geochemical method of dissolved and insoluble fractions to characterize surface snow melting and major element elution |
| title_full | Using a geochemical method of dissolved and insoluble fractions to characterize surface snow melting and major element elution |
| title_fullStr | Using a geochemical method of dissolved and insoluble fractions to characterize surface snow melting and major element elution |
| title_full_unstemmed | Using a geochemical method of dissolved and insoluble fractions to characterize surface snow melting and major element elution |
| title_short | Using a geochemical method of dissolved and insoluble fractions to characterize surface snow melting and major element elution |
| title_sort | using a geochemical method of dissolved and insoluble fractions to characterize surface snow melting and major element elution |
| topic | melt-surface mountain glaciers snow and ice chemistry |
| url | https://www.cambridge.org/core/product/identifier/S0022143018000874/type/journal_article |
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