Water and suspended-sediment discharges were measured and bed-material samples were collected during August, 1982, at 9 cross sections along a 800-kilometer reach of the Rio Orinoco. Flows varied from approximately 31,000 to 72,000 cubic meters per second, and sediment discharge varied from approximately 1,600 to 8,000 kilograms per second. The bed material is mostly fine to medium sand and almost one-third of the suspended sediment is sand.
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USGS Numbered Series
Data from sediment studies of the Rio Orinoco, Venezuela, August 15-25, 1982