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Particle size of sediments collected from the bed of the Amazon River and its tributaries in June and July 1976

Open-File Report 77-400

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Abstract

Sixty-five samples of bed material were collected from the Amazon River and its major tributaries between Belem, Brazil, and Iquitos, Peru. Samples were taken with a standard BM-54 sampler, a pipe dredge, or a Helley-Smith bedload sampler. Most of the samples have median diameters in the size range of fine to medium sand and contain small percentages of fine gravel. Complete size distributions are tabulated.

Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Particle size of sediments collected from the bed of the Amazon River and its tributaries in June and July 1976
Series title:
Open-File Report
Series number:
77-400
Edition:
-
Year Published:
1977
Language:
ENGLISH
Publisher:
U.S. Geological Survey,
Description:
iii, 18 p. :map ;27 cm.; (20 p. - PGS)