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Influence of bed patchiness, slope, grain hiding, and form drag on gravel mobilization in very steep streams
Influence of bed patchiness slope grain hiding form drag on gravel mobilization very steep streams
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2014/4/8
Steep streams are a major portion of channel networks and provide a link to transport sediment from hillslopes to lower gradient rivers. Despite their importance, key unknowns remain, perhaps foremost...
Role of dust alkalinity in acid mobilization of iron
dust alkalinity acid mobilization of iron
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2010/10/11
Atmospheric processing of mineral aerosols by acid gases (e.g., SO2, HNO3, N2O5, and HCl) may play a key role in the transformation of insoluble iron (Fe in the oxidized or ferric (III) form) to solub...
Littoral energy mobilization dominates energy supply for top consumers in subarctic lakes
Littoral energy mobilization energy supply top consumers subarctic lakes
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2014/5/9
We used stable carbon (δ13C) and nitrogen (δ15N) isotopes to assess the energy sources supporting the top consumer (Arctic char, Salvelinus alpinus) in nine subarctic lakes in northern Sweden. The δ13...
Apatite Replacement and Rare Earth Mobilization, Fractionation, and Fixation During Weathering
Apatite Florencite Granite Phosphorus Rare earth elements Rhabdophane Scanning electron microscopy Weathering
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2012/1/5
During an electron microscope study of the weathering of granite from southern New South Wales, Australia, an assemblage of minerals including florencite and rhabdophane was discovered replacing apati...
Mobilization of Quartz Fines in Porous Media
Colloidal forces Fines particles Electrolyte concentration Hydrodynamic forces Mobilization Porous media Quartz
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2012/1/10
The onset of the mobilization of fine particles of quartz (fines) in sandpacks was determined by comparing the theoretically calculated hydrodynamic and colloidal forces acting on a fines particle nea...