Coastal & Marine Geology InfoBank

USGS CMG InfoBank: Suspended and Dissolved Loads


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Comment: 08:47 - 09:17 (00:30)

Source: Annenberg/CPB Resources - Earth Revealed - 19. Running Water I: Rivers, Erosion and Deposition

Keywords: river, stream, "bed load", "suspended load", "dissolved load", transportation, sediment, silt, clay, "chemical weathering", discharge

Our transcription: Although considerable amounts of sediment are transported as bed load, most of a stream's sediment is typically carried in suspension and in solution.

"Suspended load" includes material like silts or clays -- it is light enough to be swept along in the current without touching bottom.

"Dissolved load" is invisible -- it is the ever-present soluble material which results from chemical weathering of the rocks along the channel.

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U.S. Department of the Interior \| U.S. Geological Survey URL: http://walrus.wr.usgs.gov/infobank/programs/html/school/moviepage/18.01.13.html Page Contact: InfoBank staff Page Last Modified: Tue Dec 16 06:31:56 PST 2008 (wcs)