| DOI: | 10.1002/2013GL057760
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| 论文题名: | The sulfur budget of the 2011 Grímsvötn eruption, Iceland |
| 作者: | Sigmarsson O.; Haddadi B.; Carn S.; Moune S.; Gudnason J.; Yang K.; Clarisse L.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-8323
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| EISSN: | 1944-8054
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| 出版年: | 2013
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| 卷: | 40, 期:23 | | 起始页码: | 6095
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| 结束页码: | 6100
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| 语种: | 英语
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| 英文关键词: | Grímsvötn volcano
; mineral melt inclusions
; satellite-based SO 2 mass loading
; sulfide globules
; sulfur degassing
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| Scopus关键词: | Hydrothermal circulation
; Mass loadings
; Mass-balance calculations
; Mineral melts
; Satellite measurements
; sulfide globules
; Sulfur concentrations
; Sulfur degassing
; Budget control
; Degassing
; Glass
; Satellites
; Silicate minerals
; Structural geology
; Sulfur
; Sulfur dioxide
; Loading
; concentration (composition)
; hydrothermal activity
; mass balance
; remobilization
; satellite imagery
; sulfide
; sulfur
; volcanic eruption
; Iceland
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| 英文摘要: | Sulfur concentrations have been measured in 28 melt inclusions (MIs) in plagioclase, clinopyroxene, and olivine crystals extracted from tephra produced during the explosive eruption of Grímsvötn in May 2011. The results are compared to sulfur concentrations in the groundmass glass in order to estimate the mass of sulfur brought to surface during the eruption. Satellite measurements yield order of magnitude lower sulfur (~0.2 Tg) in the eruption plume than estimated from the difference between MI and the groundmass glass. This sulfur "deficit" is readily explained by sulfur adhering to tephra grains but principally by sulfide globules caused by basalt-sulfide melt exsolution before degassing. A mass balance calculation reveals that approximately ~0.8 Tg of SO2 is present as globules, representing ~50% of the total sulfur budget. Most of the sulfide globules likely reside at depth due to their elevated density, for potential later remobilization by new magma or hydrothermal circulation. Key Points H2S and SO2 degassing is estimated for the 2011 eruption of Grímsvötn Satellite-based SO2 mass loading is lower than from mineral melt inclusions Half of S resides as sulfide globules; 25% enter the stratosphere ©2013. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84889956539&doi=10.1002%2f2013GL057760&partnerID=40&md5=8d87da801c240b22ad0e74371dac4fd3
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/5587
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| Appears in Collections: | 气候减缓与适应
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作者单位: | LMV, CNRS-UBP-IRD, 5 rue Kessler, 63038 Clermont-Ferrand, France
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| Recommended Citation: | |
Sigmarsson O.,Haddadi B.,Carn S.,et al. The sulfur budget of the 2011 Grímsvötn eruption, Iceland[J]. Geophysical Research Letters,2013-01-01,40(23).
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