DOI: 10.1002/2014GL060199
论文题名: Estuarine removal of glacial iron and implications for iron fluxes to the ocean
作者: Schroth A.W. ; Crusius J. ; Hoyer I. ; Campbell R.
刊名: Geophysical Research Letters
ISSN: 0094-10578
EISSN: 1944-10309
出版年: 2014
卷: 41, 期: 11 起始页码: 3951
结束页码: 3958
语种: 英语
英文关键词: estuary
; glaciers
; iron
Scopus关键词: Budget control
; Catchments
; Estuaries
; Glacial geology
; Glaciers
; Estuary environment
; Geochemical data
; Glacial meltwater
; Gulf of Alaska
; Iron fluxes
; Labile irons
; Nutrient cycle
; Quantitative description
; Iron
; estuarine ecosystem
; geochemical survey
; glacial environment
; iron
; meltwater
; nutrient cycling
; salinity
; Gulf of Alaska
; Pacific Ocean
英文摘要: While recent work demonstrates that glacial meltwater provides a substantial and relatively labile flux of the micronutrient iron to oceans, the role of high-latitude estuary environments as a potential sink of glacial iron is unknown. Here we present the first quantitative description of iron removal in a meltwater-dominated estuary. We find that 85% of "dissolved" Fe is removed in the low-salinity region of the estuary along with 41% of "total dissolvable" iron associated with glacial flour. We couple these findings with hydrologic and geochemical data from Gulf of Alaska (GoA) glacierized catchments to calculate meltwater-derived fluxes of size and species partitioned Fe to the GoA. Iron flux data indicate that labile iron in the glacial flour and associated Fe minerals dominate the meltwater contribution to the Fe budget of the GoA. As such, GoA nutrient cycles and related ecosystems could be strongly influenced by continued ice loss in its watershed. © 2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84901737500&doi=10.1002%2f2014GL060199&partnerID=40&md5=ca02ce7a92d21902925ee33c3807eba0
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7842
Appears in Collections: 气候减缓与适应
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作者单位: Department of Geology, University of Vermont, Burlington, VT, United States
Recommended Citation:
Schroth A.W.,Crusius J.,Hoyer I.,et al. Estuarine removal of glacial iron and implications for iron fluxes to the ocean[J]. Geophysical Research Letters,2014-01-01,41(11).