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| Titel |
The fractionation of the elements in river waters with respect to the continental crust: a UK perspective based on a river enrichment factor approach |
| VerfasserIn |
C. Neal |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1027-5606
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| Digitales Dokument |
URL |
| Erschienen |
In: Hydrology and Earth System Sciences ; 4, no. 3 ; Nr. 4, no. 3, S.499-509 |
| Datensatznummer |
250001755
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| Publikation (Nr.) |
 copernicus.org/hess-4-499-2000.pdf |
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| Zusammenfassung |
| The
fractionation in chemical elements for UK river waters is described relative to
the continental crust based on data collected within studies of upland acidic
catchments in mid-Wales and major eastern-UK rivers. Four types of river are
examined (upland, rural, agricultural and industrial/urban) together with an
average for the UK based on a "river enrichment factor", REF. Here, the REF
is defined as the ratio of the median river water concentration to the average
abundance for the upper continental crust for each element. For this purpose,
graphical representations of the logarithm of the REF are presented sequentially
in increasing order of magnitude. The results demonstrate vividly the high
fractionating of the more volatile, anionic and ‘sea-salt' elements to the
aqueous phase and the retention of transition elements of high charge due to
solubility controls with intermediate controls for the divalent base cations of
intermediate solubility. They also show the increasing significance of
pollutants in the agriculturally and industrially/ urban impacted environments.
Keywords: Elements;
major elements; trace elements; nutrients; river; hydrochemistry; enrichment
factor; river enrichment factor; LOIS; Plynlimon; River Severn; Afon Hafren;
River Tweed; River Aire; River Thames |
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