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Trace Metals in the Columbia River Estuary Following the 18 May 1980 Eruption of Mount St. Helens
|Title:||Trace Metals in the Columbia River Estuary Following the 18 May 1980 Eruption of Mount St. Helens|
Wilson, Stephanie L.
|Date Issued:||Oct 1984|
|Publisher:||University of Hawai'i Press|
|Citation:||Riedel GF, Wilson SL, Holton RL. 1984. Trace metals in the Columbia River Estuary following the 18 May 1980 eruption of Mount St. Helens. Pac Sci 38(4): 340-349.|
|Abstract:||Dissolved and suspended concentrations of cadmium, copper,
iron, manganese, nickel, lead, and zinc were measured in the Columbia River Estuary
following the 18 May 1980 eruption of Mount St. Helens. Soluble concentrations
of these trace elements were not substantially elevated by the influx of
volcanic ash and mud into the estuary during this period, except for somewhat
higher than usual concentrations of manganese and copper. A laboratory experiment
indicates that manganese leached from volcanic debris in fresh water and in
the transition from fresh to slightly saline water probably caused the elevated Mn
concentrations. Copper in solution may also have been enhanced slightly by
leaching from the material into fresh water.
|Appears in Collections:||
Pacific Science Volume 38, Number 4, 1984|
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