2012
DOI: 10.3133/sir20125003
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Statistical relations of salt and selenium loads to geospatial characteristics of corresponding subbasins of the Colorado and Gunnison Rivers in Colorado

Abstract: Elevated loads of salt and selenium can impair the quality of water for both anthropogenic and natural uses. Understanding the environmental processes controlling how salt and selenium are introduced to streams is critical to managing and mitigating the effects of elevated loads. Dominant relations between salt and selenium loads and environmental characteristics can be established by using geospatial data. The U.S. Geological Survey, in cooperation with the Bureau of Reclamation, investigated statistical rela… Show more

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Cited by 7 publications
(5 citation statements)
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“…Dissolution of carbonate rocks, including calcite and dolomite, release Ca, Mg, and HCO 3 ; dissolution of gypsum and anhydrite releases Ca and SO 4 ; dissolution of halite releases Na and Cl; and dissolution of silicate minerals releases Na, Ca, Mg, K, and HCO 3 [41]. Groundwater that comes into contact with these rocks will dissolve salts from these geologic units, which may then contribute to streamflow either through baseflow or as spring point sources [42]. Additionally, runoff from precipitation or snowmelt may contact these rocks at land surface and contribute dissolved solids loading to streams and rivers.…”
Section: Dissolved Solids and Suspended Sediment In The Ucrbmentioning
confidence: 99%
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“…Dissolution of carbonate rocks, including calcite and dolomite, release Ca, Mg, and HCO 3 ; dissolution of gypsum and anhydrite releases Ca and SO 4 ; dissolution of halite releases Na and Cl; and dissolution of silicate minerals releases Na, Ca, Mg, K, and HCO 3 [41]. Groundwater that comes into contact with these rocks will dissolve salts from these geologic units, which may then contribute to streamflow either through baseflow or as spring point sources [42]. Additionally, runoff from precipitation or snowmelt may contact these rocks at land surface and contribute dissolved solids loading to streams and rivers.…”
Section: Dissolved Solids and Suspended Sediment In The Ucrbmentioning
confidence: 99%
“…Irrigation can also contribute salts to groundwater and surface runoff through the development of efflorescent salt crusts that precipitate onto soil surfaces after the evaporation of excess irrigation water [43]. Runoff contacting these salt crusts may dissolve them or entrain the sediments, with ultimate transport to receiving streams [42]. Dissolution of mineral salts by both surface runoff (including irrigation) and groundwater flow produces dissolved solids that may be transported to streams and rivers.…”
Section: Dissolved Solids and Suspended Sediment In The Ucrbmentioning
confidence: 99%
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