1989
DOI: 10.1016/0375-6742(89)90061-7
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Overbank sediment: a representative sample medium for regional geochemical mapping

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Cited by 144 publications
(58 citation statements)
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“…Floodplain sediments have been widely used in geochemical surveys (the main aim of the present sampling exercise) because they are representative of the average regolith composition in a catchment (Ottesen et al 1989). Although this holds true for most geochemical compositional parameters of the sediments, inherited from the original lithologies from which they are derived through weathering and transport, a property such as soil pH is not expected to be influenced by provenance to such an extent.…”
Section: Background Methodologymentioning
confidence: 99%
“…Floodplain sediments have been widely used in geochemical surveys (the main aim of the present sampling exercise) because they are representative of the average regolith composition in a catchment (Ottesen et al 1989). Although this holds true for most geochemical compositional parameters of the sediments, inherited from the original lithologies from which they are derived through weathering and transport, a property such as soil pH is not expected to be influenced by provenance to such an extent.…”
Section: Background Methodologymentioning
confidence: 99%
“…Overbank sediments have been shown to be more representative of the geochemical composition of the catchment than stream sediments (Ottesen et al 1989). This is because the suspended sediment load in a flood event, from which the overbank or floodplain sediments are primarily derived, is sourced from a greater area than the sediments within the stream channel, which are typically derived from local point sources.…”
Section: Present Workmentioning
confidence: 99%
“…Stream sediments reflect rock structure of the catchment area, its geochemical characteristics and possible recent contamination upstream of the sampling point (OTTESEN et al, 1989). Snow represents natural collector and ideal medium for observation of dry or wet deposited atmospheric constituents, such as aerosol particles, which are well preserved in the snowcover as long as no melting occurs (SCHÖNER et al, 1997).…”
Section: Sample Preparation and Sem/eds Analysesmentioning
confidence: 99%