Can I read Grain Size Along Two Gravel-bed Rivers: Statistical Variation, Spatial Pattern and Sedimentary Links on EtoBox?

Grain Size Along Two Gravel-bed Rivers: Statistical Variation, Spatial Pattern and Sedimentary Links by Rice, Stephen; Church, Michael is a Environmental Science article available to read on EtoBox.

What is Grain Size Along Two Gravel-bed Rivers: Statistical Variation, Spatial Pattern and Sedimentary Links about?

A new set of field data facilitates a detailed analysis of variations in bed material grain size within two confluent gravel-bed rivers in northeastern British Columbia, Canada. A preliminary assessment of grain-size variability establishes a basis for examination of the spatial pattern of grain-size change. Standard ANOVA techniques are inappropriate because individual samples have unequal variances and are not normally distributed. Alternative tests for homoscedasticity and comparison of means are therefore utilized. Within-site, between-sample variability is not significant. The grain-size distributions that were obtained at individual sites are therefore representative of the depositional environments that were sampled. In both rivers mean grain size does vary significantly between sites and there is therefore a basis for examining the data for spatial patterns such as downstream fining. Textural variations along the two rivers studied here are complex and show negligible overall fining (in over 100 km). This is the consequence of a large number of tributary inputs and non-alluvial sediment sources which are the legacy of Late Pleistocene glaciation. The identification of later

Who reads Grain Size Along Two Gravel-bed Rivers: Statistical Variation, Spatial Pattern and Sedimentary Links?

Author

Rice, Stephen; Church, Michael

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0360-1269)

Published

1998

Language

EN

Field

Environmental Science (Physical Sciences)