Douglas W. Jordan, Rick C. Tobin, Paul Lundegard Neil Samuels, Fred Schauf, John Thaeler, Victor VanBeuren and Paul Edwin Potter.
Comparison of methods of size analysis for sands of the Amazon-Solimões Rivers, Brazil and Peru
Version of Record online: 14 JUN 2006
Volume 28, Issue 1, pages 123–128, February 1981
How to Cite
SEMINAR, S. (1981), Comparison of methods of size analysis for sands of the Amazon-Solimões Rivers, Brazil and Peru. Sedimentology, 28: 123–128. doi: 10.1111/j.1365-3091.1981.tb01669.x
- Issue online: 14 JUN 2006
- Version of Record online: 14 JUN 2006
- Manuscript received 8 October 1979; revision received 21 April 1980
Cumulative frequency curves and bivariate textural plots of sands collected and sieved from the medium-grained (1.94), well-sorted (0.46) Amazon-Solimões Rivers are not environmentally sensitive. Only 13 % of the samples plot as fluvial using cumulative frequency curves, and only one of the nine bivariate plots successfully identified the fluvial environment. Thus, identification of depositional environments of sands by size distribution based only on sieving is not a reliable technique—even when the results of diagenesis are not considered.